Analysis

  • max time kernel
    149s
  • max time network
    106s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    25-05-2022 22:08

General

  • Target

    mvs.exe

  • Size

    476KB

  • MD5

    faf25564825a05a4c01870cdc0535525

  • SHA1

    54d7f92637e31e4c1aed0a58b690d7d99886c380

  • SHA256

    82732e47492148243ee3fb338c93d43b9a9984f39e3409327600cffc5766af1b

  • SHA512

    b44be2421a074ea986336b0c179a6d416c845ae44b4ca67d31594506bd79a3fdfa2907d7bcf7b3c46f1d942e0b057fbd8bce3a02bceb5bf91e1e70c30a57f0db

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Launches sc.exe

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Gathers system information 1 TTPs 1 IoCs

    Runs systeminfo.exe.

  • Modifies registry class 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\mvs.exe
    "C:\Users\Admin\AppData\Local\Temp\mvs.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1976
    • C:\windows\temp\a.exe
      "C:\windows\temp\a.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4788
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\79D8.tmp\a.bat" "C:\windows\temp\a.exe""
        3⤵
        • Checks computer location settings
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:2584
        • C:\Windows\SysWOW64\systeminfo.exe
          systeminfo /fo list
          4⤵
          • Gathers system information
          PID:2652
        • C:\Windows\SysWOW64\find.exe
          Find /i "OS Name: "
          4⤵
            PID:3632
          • C:\Windows\SysWOW64\find.exe
            Find /i "OS Version: "
            4⤵
              PID:4876
            • C:\Windows\SysWOW64\find.exe
              Find /i "System Model:"
              4⤵
                PID:4216
              • C:\Windows\SysWOW64\find.exe
                Find /i "System Manufacturer: "
                4⤵
                  PID:2304
                • C:\Windows\SysWOW64\find.exe
                  Find /i "BIOS Version:"
                  4⤵
                    PID:3776
                  • C:\Windows\SysWOW64\find.exe
                    Find /i "Total Physical Memory: "
                    4⤵
                      PID:4068
                    • C:\Windows\SysWOW64\find.exe
                      Find /i "Time Zone:"
                      4⤵
                        PID:3080
                      • C:\Windows\SysWOW64\find.exe
                        Find /i "DHCP Server:"
                        4⤵
                          PID:4408
                        • C:\Windows\SysWOW64\find.exe
                          Find /i "Connection Name:"
                          4⤵
                            PID:2980
                          • C:\Windows\SysWOW64\find.exe
                            Find /i "Original Install Date: "
                            4⤵
                              PID:2992
                            • C:\Windows\SysWOW64\reg.exe
                              reg query HKLM\Hardware\Description\System\CentralProcessor\0 /v Identifier
                              4⤵
                              • Checks processor information in registry
                              • Modifies registry key
                              PID:4520
                            • C:\Windows\SysWOW64\find.exe
                              Find /i "x86"
                              4⤵
                                PID:4628
                              • C:\Windows\SysWOW64\getmac.exe
                                getmac /nh
                                4⤵
                                  PID:1736
                                • C:\Windows\SysWOW64\reg.exe
                                  Reg query "HKEY_CLASSES_ROOT\http\shell\open\command" /ve
                                  4⤵
                                    PID:3884
                                  • C:\Windows\SysWOW64\findstr.exe
                                    Findstr /i "Program Files" c:\windows\temp\c.txt
                                    4⤵
                                      PID:4696
                                    • C:\Windows\SysWOW64\reg.exe
                                      Reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer" /v SVCversion
                                      4⤵
                                        PID:560
                                      • C:\Windows\SysWOW64\cmd.exe
                                        C:\Windows\system32\cmd.exe /c Reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer" /v SVCversion
                                        4⤵
                                        • Suspicious use of WriteProcessMemory
                                        PID:4968
                                        • C:\Windows\SysWOW64\reg.exe
                                          Reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer" /v SVCversion
                                          5⤵
                                            PID:4636
                                        • C:\Windows\SysWOW64\cmd.exe
                                          C:\Windows\system32\cmd.exe /c Reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Mozilla Firefox" /v CurrentVersion
                                          4⤵
                                            PID:4616
                                            • C:\Windows\SysWOW64\reg.exe
                                              Reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Mozilla Firefox" /v CurrentVersion
                                              5⤵
                                                PID:4576
                                            • C:\Windows\SysWOW64\reg.exe
                                              Reg query "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Adobe Flash Player Plugin" /v DisplayVersion
                                              4⤵
                                                PID:4532
                                              • C:\Windows\SysWOW64\findstr.exe
                                                Findstr /i "REG_SZ" c:\windows\temp\123.txt
                                                4⤵
                                                  PID:4608
                                                • C:\Windows\SysWOW64\reg.exe
                                                  reg query "HKLM\SOFTWARE\Adobe\Acrobat Reader"
                                                  4⤵
                                                    PID:4492
                                                  • C:\Windows\SysWOW64\reg.exe
                                                    Reg query "HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Plug-in"
                                                    4⤵
                                                      PID:1692
                                                    • C:\Windows\SysWOW64\findstr.exe
                                                      Findstr /i "1" c:\windows\temp\123.txt
                                                      4⤵
                                                        PID:4344
                                                      • C:\Windows\SysWOW64\cmd.exe
                                                        C:\Windows\system32\cmd.exe /S /D /c" ver "
                                                        4⤵
                                                          PID:4388
                                                        • C:\Windows\SysWOW64\findstr.exe
                                                          findstr /i "5\.1\."
                                                          4⤵
                                                            PID:4400
                                                          • C:\Windows\SysWOW64\cmd.exe
                                                            C:\Windows\system32\cmd.exe /c sc query mpssvc | findstr /i "STATE"
                                                            4⤵
                                                              PID:3716
                                                              • C:\Windows\SysWOW64\sc.exe
                                                                sc query mpssvc
                                                                5⤵
                                                                  PID:1364
                                                                • C:\Windows\SysWOW64\findstr.exe
                                                                  findstr /i "STATE"
                                                                  5⤵
                                                                    PID:4436
                                                                • C:\Windows\SysWOW64\cmd.exe
                                                                  C:\Windows\system32\cmd.exe /c sc query mpssvc | findstr /i "installed"
                                                                  4⤵
                                                                    PID:3220
                                                                    • C:\Windows\SysWOW64\sc.exe
                                                                      sc query mpssvc
                                                                      5⤵
                                                                        PID:3212
                                                                      • C:\Windows\SysWOW64\findstr.exe
                                                                        findstr /i "installed"
                                                                        5⤵
                                                                          PID:1088
                                                                      • C:\Windows\SysWOW64\cmd.exe
                                                                        C:\Windows\system32\cmd.exe /c sc query wuauserv | findstr /i "STATE"
                                                                        4⤵
                                                                          PID:1412
                                                                          • C:\Windows\SysWOW64\sc.exe
                                                                            sc query wuauserv
                                                                            5⤵
                                                                              PID:5104
                                                                            • C:\Windows\SysWOW64\findstr.exe
                                                                              findstr /i "STATE"
                                                                              5⤵
                                                                                PID:5088
                                                                            • C:\Windows\SysWOW64\cmd.exe
                                                                              C:\Windows\system32\cmd.exe /c sc query wuauserv | findstr /i "installed"
                                                                              4⤵
                                                                                PID:3224
                                                                                • C:\Windows\SysWOW64\sc.exe
                                                                                  sc query wuauserv
                                                                                  5⤵
                                                                                    PID:924
                                                                                  • C:\Windows\SysWOW64\findstr.exe
                                                                                    findstr /i "installed"
                                                                                    5⤵
                                                                                      PID:5116
                                                                                  • C:\Windows\SysWOW64\cmd.exe
                                                                                    C:\Windows\system32\cmd.exe /c sc query wscsvc | findstr /i "STATE"
                                                                                    4⤵
                                                                                      PID:4992
                                                                                      • C:\Windows\SysWOW64\sc.exe
                                                                                        sc query wscsvc
                                                                                        5⤵
                                                                                          PID:4988
                                                                                        • C:\Windows\SysWOW64\findstr.exe
                                                                                          findstr /i "STATE"
                                                                                          5⤵
                                                                                            PID:4328
                                                                                        • C:\Windows\SysWOW64\cmd.exe
                                                                                          C:\Windows\system32\cmd.exe /c sc query wscsvc | findstr /i "installed"
                                                                                          4⤵
                                                                                            PID:100
                                                                                            • C:\Windows\SysWOW64\sc.exe
                                                                                              sc query wscsvc
                                                                                              5⤵
                                                                                                PID:216
                                                                                              • C:\Windows\SysWOW64\findstr.exe
                                                                                                findstr /i "installed"
                                                                                                5⤵
                                                                                                  PID:228
                                                                                              • C:\Windows\SysWOW64\cmd.exe
                                                                                                C:\Windows\system32\cmd.exe /c sc query msiserver | findstr /i "STATE"
                                                                                                4⤵
                                                                                                  PID:8
                                                                                                  • C:\Windows\SysWOW64\sc.exe
                                                                                                    sc query msiserver
                                                                                                    5⤵
                                                                                                      PID:3152
                                                                                                    • C:\Windows\SysWOW64\findstr.exe
                                                                                                      findstr /i "STATE"
                                                                                                      5⤵
                                                                                                        PID:3544
                                                                                                    • C:\Windows\SysWOW64\cmd.exe
                                                                                                      C:\Windows\system32\cmd.exe /c sc query msiserver | findstr /i "installed"
                                                                                                      4⤵
                                                                                                        PID:3164
                                                                                                        • C:\Windows\SysWOW64\sc.exe
                                                                                                          sc query msiserver
                                                                                                          5⤵
                                                                                                            PID:2928
                                                                                                          • C:\Windows\SysWOW64\findstr.exe
                                                                                                            findstr /i "installed"
                                                                                                            5⤵
                                                                                                              PID:1212
                                                                                                          • C:\Windows\SysWOW64\NOTEPAD.EXE
                                                                                                            "C:\Windows\system32\NOTEPAD.EXE" C:\windows\temp\Report.txt
                                                                                                            4⤵
                                                                                                            • Opens file in notepad (likely ransom note)
                                                                                                            PID:1824

                                                                                                    Network

                                                                                                    MITRE ATT&CK Enterprise v6

                                                                                                    Replay Monitor

                                                                                                    Loading Replay Monitor...

                                                                                                    Downloads

                                                                                                    • C:\Users\Admin\AppData\Local\Temp\79D8.tmp\a.bat

                                                                                                      Filesize

                                                                                                      7KB

                                                                                                      MD5

                                                                                                      121b06bb9a454fcd9c1c618c25f193dc

                                                                                                      SHA1

                                                                                                      59b3de866e3848e48e877d7c115e64cb725c4c7e

                                                                                                      SHA256

                                                                                                      81800740d6cc41785cd030ca001d2182b0ef21bb3b4ec5054fe152e8e783ca47

                                                                                                      SHA512

                                                                                                      0d30cb02f589cfe315091c24421467d35e2490cd10009b88d3664e0e65c02723634fd62444412a45e67affa1352a3352d09bd871d19a2100d8fc5e72fd6bd9ab

                                                                                                    • C:\Windows\Temp\a.exe

                                                                                                      Filesize

                                                                                                      216KB

                                                                                                      MD5

                                                                                                      6b2c8c3958f0e87c1b111390127eaff8

                                                                                                      SHA1

                                                                                                      4e7089791266f8daf2cf47a47db7cd2ad117bd8e

                                                                                                      SHA256

                                                                                                      adb2ff6be2d36cd0ed909084dfe47f85aee7e40184bf87d7aff9eff4fb3ba1f0

                                                                                                      SHA512

                                                                                                      b4e1e4bf2b1479b721dd2981a0ea05006ebacf569e1a1974b9678f058793f1103e5c4533843f1582b59edf84c4c7e83d2eed12c5416a2efc45edb94da155eb12

                                                                                                    • C:\windows\temp\Report.txt

                                                                                                      Filesize

                                                                                                      1KB

                                                                                                      MD5

                                                                                                      e12f14b8b3893ea4c9b357e5319c8e77

                                                                                                      SHA1

                                                                                                      9abf5ae4377a92311f80f26f1034cb73cafdf712

                                                                                                      SHA256

                                                                                                      07d6159e7921b813bd3b53c62956a7c3bff9e9adf3d35d779ebf7f43f05178a8

                                                                                                      SHA512

                                                                                                      8c7f5151ba34af660f438a80d3dda6731038a83a84ed8e838af4271ddfc19138e36d12e8d79ea7e39f3136ebc6d701e6df37aa6d5bd1f78de661f02279f1c294

                                                                                                    • C:\windows\temp\a.exe

                                                                                                      Filesize

                                                                                                      216KB

                                                                                                      MD5

                                                                                                      6b2c8c3958f0e87c1b111390127eaff8

                                                                                                      SHA1

                                                                                                      4e7089791266f8daf2cf47a47db7cd2ad117bd8e

                                                                                                      SHA256

                                                                                                      adb2ff6be2d36cd0ed909084dfe47f85aee7e40184bf87d7aff9eff4fb3ba1f0

                                                                                                      SHA512

                                                                                                      b4e1e4bf2b1479b721dd2981a0ea05006ebacf569e1a1974b9678f058793f1103e5c4533843f1582b59edf84c4c7e83d2eed12c5416a2efc45edb94da155eb12

                                                                                                    • \??\c:\windows\temp\b.exe

                                                                                                      Filesize

                                                                                                      211KB

                                                                                                      MD5

                                                                                                      ee8eeff90bf2db3a002a27990a82cb19

                                                                                                      SHA1

                                                                                                      647c8de3585d87b8c297fe2bd0f54e8e4460aa55

                                                                                                      SHA256

                                                                                                      2dc4292328bbd11f3142311145ec6a78247d244a53d67be5c8d4b66584a5fdc5

                                                                                                      SHA512

                                                                                                      39325f0465d081b270debe39531337b99d01a1806c842f82e4ed922122865ba1f02ccca37fde8613dc9de4a46ba5cb5255126d56b44495dfdd36b723cf65d761

                                                                                                    • \??\c:\windows\temp\c.txt

                                                                                                      Filesize

                                                                                                      128B

                                                                                                      MD5

                                                                                                      628d983719759839517e5efe60f5f0d3

                                                                                                      SHA1

                                                                                                      4ffb5d09376b369071da2c2ec75f6e3f44d11502

                                                                                                      SHA256

                                                                                                      13fc04ef802cc8ba2926ccee55b7e4d8b13db1d22545ab123ca29fd61e7a71de

                                                                                                      SHA512

                                                                                                      37bbbd28b99eaec98de63b12cdbcc55fac73258f69dabe68cff8d33c47f41eee7175c14f09d9baae5fe17dd6e7360a3f132aba5ad46e79de55fd7324bddcc07c

                                                                                                    • \??\c:\windows\temp\sc.exe

                                                                                                      Filesize

                                                                                                      30KB

                                                                                                      MD5

                                                                                                      a48b1c06219a01a60cd8d4d45440bde9

                                                                                                      SHA1

                                                                                                      34af23607ad5afa9e61b6a96cec811e6bdc50b4a

                                                                                                      SHA256

                                                                                                      5c3736e37168dae7e431a31d5c4e0d351271d37804787ee3b8fa6e46413ba880

                                                                                                      SHA512

                                                                                                      8f6b29be451582e47743009d95637f540dea4d7c93e685687e8b8f130a1cf535a4030722367fd4ac49639c19ce35c779c0cfef315eea038d9a4434474c7690f4

                                                                                                    • \??\c:\windows\temp\systeminfo.exe

                                                                                                      Filesize

                                                                                                      70KB

                                                                                                      MD5

                                                                                                      a279f4091f940c15a288767f4285c0ff

                                                                                                      SHA1

                                                                                                      4572dc2ae3cdc4d7ea75249037bdb2d394d7ec83

                                                                                                      SHA256

                                                                                                      7852ee782a6310be5d1b94df136299060ddff820dbe8bb2a2b79fe92eec0b7c0

                                                                                                      SHA512

                                                                                                      2f3a448a8491add4c43e3d059f89db94fdb988f9930b8b79cc231b865d3d5007c62a54c08416814b73bad98ace63df6788c8887d1c2458250b37c628797f70a9

                                                                                                    • memory/8-182-0x0000000000000000-mapping.dmp

                                                                                                    • memory/100-179-0x0000000000000000-mapping.dmp

                                                                                                    • memory/216-180-0x0000000000000000-mapping.dmp

                                                                                                    • memory/228-181-0x0000000000000000-mapping.dmp

                                                                                                    • memory/560-152-0x0000000000000000-mapping.dmp

                                                                                                    • memory/924-174-0x0000000000000000-mapping.dmp

                                                                                                    • memory/1088-169-0x0000000000000000-mapping.dmp

                                                                                                    • memory/1212-187-0x0000000000000000-mapping.dmp

                                                                                                    • memory/1364-165-0x0000000000000000-mapping.dmp

                                                                                                    • memory/1412-170-0x0000000000000000-mapping.dmp

                                                                                                    • memory/1692-160-0x0000000000000000-mapping.dmp

                                                                                                    • memory/1736-148-0x0000000000000000-mapping.dmp

                                                                                                    • memory/1824-191-0x0000000000000000-mapping.dmp

                                                                                                    • memory/2304-139-0x0000000000000000-mapping.dmp

                                                                                                    • memory/2584-133-0x0000000000000000-mapping.dmp

                                                                                                    • memory/2652-135-0x0000000000000000-mapping.dmp

                                                                                                    • memory/2928-186-0x0000000000000000-mapping.dmp

                                                                                                    • memory/2980-144-0x0000000000000000-mapping.dmp

                                                                                                    • memory/2992-145-0x0000000000000000-mapping.dmp

                                                                                                    • memory/3080-142-0x0000000000000000-mapping.dmp

                                                                                                    • memory/3152-183-0x0000000000000000-mapping.dmp

                                                                                                    • memory/3164-185-0x0000000000000000-mapping.dmp

                                                                                                    • memory/3212-168-0x0000000000000000-mapping.dmp

                                                                                                    • memory/3220-167-0x0000000000000000-mapping.dmp

                                                                                                    • memory/3224-173-0x0000000000000000-mapping.dmp

                                                                                                    • memory/3544-184-0x0000000000000000-mapping.dmp

                                                                                                    • memory/3632-136-0x0000000000000000-mapping.dmp

                                                                                                    • memory/3716-164-0x0000000000000000-mapping.dmp

                                                                                                    • memory/3776-140-0x0000000000000000-mapping.dmp

                                                                                                    • memory/3884-149-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4068-141-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4216-138-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4328-178-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4344-161-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4388-162-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4400-163-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4408-143-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4436-166-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4492-159-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4520-146-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4532-157-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4576-156-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4608-158-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4616-155-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4628-147-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4636-154-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4696-150-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4788-130-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4876-137-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4968-153-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4988-177-0x0000000000000000-mapping.dmp

                                                                                                    • memory/4992-176-0x0000000000000000-mapping.dmp

                                                                                                    • memory/5088-172-0x0000000000000000-mapping.dmp

                                                                                                    • memory/5104-171-0x0000000000000000-mapping.dmp

                                                                                                    • memory/5116-175-0x0000000000000000-mapping.dmp