Analysis

  • max time kernel
    21s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-05-2024 18:15

General

  • Target

    042973c6fc9e0efc69a9cb08a80fefb7e388d98f0021c38c237fdbe50f4a0c3a.exe

  • Size

    287KB

  • MD5

    a9300349e56df396f27110591c3c4e8a

  • SHA1

    91d6b1133ac0cb5115fbaf99be8d3bc0af138574

  • SHA256

    042973c6fc9e0efc69a9cb08a80fefb7e388d98f0021c38c237fdbe50f4a0c3a

  • SHA512

    51c9994735350821cf03c26d170ae0f5de6a7837d1cccce8ba7c114b9fa1005a95719458a02c531873fb59ff58c6eeb646fb47c7df3f80f7d8b9a1b30df2996f

  • SSDEEP

    6144:dvE72U+T6i5LirrllHy4HUcMQY6A+5Y+21Eqe:9E7N+T5xYrllrU7QY6A+LX

Malware Config

Extracted

Family

sality

C2

http://89.119.67.154/testo5/

http://kukutrustnet777.info/home.gif

http://kukutrustnet888.info/home.gif

http://kukutrustnet987.info/home.gif

http://www.klkjwre9fqwieluoi.info/

http://kukutrustnet777888.info/

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Modifies firewall policy service 2 TTPs 6 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 36 IoCs
  • UPX dump on OEP (original entry point) 39 IoCs
  • Modifies Installed Components in the registry 2 TTPs 5 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 4 IoCs
  • UPX packed file 35 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Windows security modification 2 TTPs 14 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 6 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:800
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:808
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:380
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2456
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2484
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2736
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3488
                  • C:\Users\Admin\AppData\Local\Temp\042973c6fc9e0efc69a9cb08a80fefb7e388d98f0021c38c237fdbe50f4a0c3a.exe
                    "C:\Users\Admin\AppData\Local\Temp\042973c6fc9e0efc69a9cb08a80fefb7e388d98f0021c38c237fdbe50f4a0c3a.exe"
                    2⤵
                    • Modifies firewall policy service
                    • UAC bypass
                    • Windows security bypass
                    • Windows security modification
                    • Checks whether UAC is enabled
                    • Drops file in Windows directory
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of SetWindowsHookEx
                    • Suspicious use of WriteProcessMemory
                    • System policy modification
                    PID:4360
                    • \??\c:\windows\system\explorer.exe
                      c:\windows\system\explorer.exe
                      3⤵
                      • Modifies WinLogon for persistence
                      • Modifies firewall policy service
                      • Modifies visiblity of hidden/system files in Explorer
                      • UAC bypass
                      • Windows security bypass
                      • Modifies Installed Components in the registry
                      • Deletes itself
                      • Executes dropped EXE
                      • Windows security modification
                      • Adds Run key to start application
                      • Checks whether UAC is enabled
                      • Enumerates connected drives
                      • Drops file in Windows directory
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious behavior: GetForegroundWindowSpam
                      • Suspicious use of SetWindowsHookEx
                      • Suspicious use of WriteProcessMemory
                      • System policy modification
                      PID:2144
                      • \??\c:\windows\system\spoolsv.exe
                        c:\windows\system\spoolsv.exe SE
                        4⤵
                        • Executes dropped EXE
                        • Drops file in Windows directory
                        • Suspicious use of SetWindowsHookEx
                        • Suspicious use of WriteProcessMemory
                        PID:2148
                        • \??\c:\windows\system\svchost.exe
                          c:\windows\system\svchost.exe
                          5⤵
                          • Modifies WinLogon for persistence
                          • Modifies visiblity of hidden/system files in Explorer
                          • Modifies Installed Components in the registry
                          • Executes dropped EXE
                          • Adds Run key to start application
                          • Drops file in Windows directory
                          • Suspicious behavior: EnumeratesProcesses
                          • Suspicious behavior: GetForegroundWindowSpam
                          • Suspicious use of SetWindowsHookEx
                          • Suspicious use of WriteProcessMemory
                          PID:1648
                          • \??\c:\windows\system\spoolsv.exe
                            c:\windows\system\spoolsv.exe PR
                            6⤵
                            • Executes dropped EXE
                            • Suspicious use of SetWindowsHookEx
                            PID:5024
                          • C:\Windows\SysWOW64\at.exe
                            at 18:17 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
                            6⤵
                              PID:4652
                            • C:\Windows\SysWOW64\at.exe
                              at 18:18 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
                              6⤵
                                PID:244
                              • \??\c:\windows\system\spoolsv.exe
                                c:\windows\system\spoolsv.exe PR
                                6⤵
                                  PID:432
                            • \??\c:\windows\system\spoolsv.exe
                              c:\windows\system\spoolsv.exe SE
                              4⤵
                                PID:2416
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                          1⤵
                            PID:3672
                          • C:\Windows\system32\DllHost.exe
                            C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                            1⤵
                              PID:3860
                            • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                              "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                              1⤵
                                PID:3948
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:4016
                                • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                                  "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                  1⤵
                                    PID:768
                                  • C:\Windows\System32\RuntimeBroker.exe
                                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                                    1⤵
                                      PID:788
                                    • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe
                                      "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca
                                      1⤵
                                        PID:4496
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        1⤵
                                          PID:4944
                                        • C:\Windows\system32\backgroundTaskHost.exe
                                          "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                          1⤵
                                            PID:2444
                                          • C:\Windows\System32\RuntimeBroker.exe
                                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                                            1⤵
                                              PID:1684
                                            • C:\Windows\System32\RuntimeBroker.exe
                                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                                              1⤵
                                                PID:848
                                              • C:\Windows\system32\dwm.exe
                                                "dwm.exe"
                                                1⤵
                                                  PID:2092

                                                Network

                                                MITRE ATT&CK Enterprise v15

                                                Replay Monitor

                                                Loading Replay Monitor...

                                                Downloads

                                                • C:\Users\Admin\AppData\Roaming\mrsys.exe

                                                  Filesize

                                                  287KB

                                                  MD5

                                                  1f34a06f0d34eb0ca983c66c4107ace7

                                                  SHA1

                                                  a8d93746f29565903a2eae07e028937f7ca43d91

                                                  SHA256

                                                  9e3bde1b37cc5efb387171a4aec602664ce772fa8fd71ea0f6f3b9043612d0c9

                                                  SHA512

                                                  0ca21df767f11fdc31005970629227152503a41784864801b650fcdc756db45d750555a1707aacf3b02a0ffa1863e986d7f4aa0e4a63eab59037e24fb81c5dc0

                                                • C:\Windows\SYSTEM.INI

                                                  Filesize

                                                  256B

                                                  MD5

                                                  36958c0091467a28ec3abc1cebf7f1dd

                                                  SHA1

                                                  cbcab47200410d4d33b11803a9433ceac8613583

                                                  SHA256

                                                  fbf08d534e30a4ce2bc45a261f93ee2e338621ae4ec693c08d822a5a05035272

                                                  SHA512

                                                  df5333f963853ed2c4c7970de65e35acd9f9f31b9b37ff178884952bff59b8e8577d6d12fb3f2d06bcbab2a7dce17c0f68a8aed762ba979a09d780e7198b1a16

                                                • C:\Windows\System\spoolsv.exe

                                                  Filesize

                                                  287KB

                                                  MD5

                                                  df01c9d50965fae182c59480838d379a

                                                  SHA1

                                                  adcf255442222007bd2a46fa1e10261a75b4b674

                                                  SHA256

                                                  5c76957b18fecce67aec7e3f88af32f6246f27aae7661b8f03f672a7cdc97b65

                                                  SHA512

                                                  992550393995bd6d344aa34b669e48a356bf0b307a032b7b1b7b736e1dd6e7f2b09790a31bf20b44fd1005b39ba2944163e2763c4f1c5504589f9b452dbbc3b7

                                                • C:\Windows\System\svchost.exe

                                                  Filesize

                                                  287KB

                                                  MD5

                                                  e7b434b849dcca171235ba6cd0b77b08

                                                  SHA1

                                                  5d58b5c59dd2a7e3c816f7c68a63d82c476ca751

                                                  SHA256

                                                  5b6d20e3f7e0cd81d91687e1dc5d54791df7b28cc03e53cbc80c03c2c64e4e36

                                                  SHA512

                                                  e5ed4d77ca1c7f85142c8f102a2103e559755940bac2e74e689a10a06cb9a97ac65c246a1f1e8c778979f74921ec6d7eb2997e0db92e34654f5ec4f4c906e287

                                                • C:\ylmbtk.pif

                                                  Filesize

                                                  100KB

                                                  MD5

                                                  b16822fb84ca8970500aa26a0a81b458

                                                  SHA1

                                                  83481e14dc4bb95359975b1ddbb1358db02c6e46

                                                  SHA256

                                                  71c14d4036fe9b8f72f9b96e2a76169a8f572c0d62565ff171cf182bb5e71366

                                                  SHA512

                                                  8eb3de69a85d4d37ede2ce220eb46855ba0810e68aa114317d7b731cf18e3900741127f3fcf579f421ef0109a0392947e3a6e1f8477a39225b6b7189f202ffca

                                                • \??\c:\windows\system\explorer.exe

                                                  Filesize

                                                  287KB

                                                  MD5

                                                  569d41cf2eaea595432d8e4cd5f940cc

                                                  SHA1

                                                  39ad6fef56befd95122305c5f79d8929e5509587

                                                  SHA256

                                                  4e5134d486b0452e3b299d64b9d2bd5eda12a2dc0154442756b8c38d236a074f

                                                  SHA512

                                                  c01e176a764bbbf7b061b09ca649ab3ae44277a12da7f9f2bdf054de6beaced6a775e1d33b959484904f75bde1a02e65a1891f8d309651dacc6428a9d9ee42c0

                                                • memory/1648-83-0x0000000004010000-0x0000000004011000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/1648-84-0x0000000003770000-0x0000000003772000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/2144-87-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-89-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-105-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-103-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-100-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-98-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-97-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-95-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-94-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-24-0x0000000000400000-0x0000000000441000-memory.dmp

                                                  Filesize

                                                  260KB

                                                • memory/2144-93-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-92-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-90-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-81-0x00000000050E0000-0x00000000050E1000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/2144-72-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-88-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-86-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-74-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-76-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-70-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-78-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-75-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-85-0x0000000002A60000-0x0000000002A62000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/2144-79-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-77-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2144-73-0x0000000003510000-0x000000000459E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2148-55-0x0000000000400000-0x0000000000441000-memory.dmp

                                                  Filesize

                                                  260KB

                                                • memory/4360-49-0x0000000002A80000-0x0000000003B0E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/4360-46-0x0000000002A80000-0x0000000003B0E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/4360-14-0x0000000002A80000-0x0000000003B0E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/4360-56-0x0000000002A80000-0x0000000003B0E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/4360-20-0x0000000002A80000-0x0000000003B0E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/4360-8-0x0000000002A80000-0x0000000003B0E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/4360-68-0x0000000000400000-0x0000000000441000-memory.dmp

                                                  Filesize

                                                  260KB

                                                • memory/4360-0-0x0000000000400000-0x0000000000441000-memory.dmp

                                                  Filesize

                                                  260KB

                                                • memory/4360-59-0x0000000002080000-0x0000000002082000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/4360-1-0x0000000002A80000-0x0000000003B0E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/4360-7-0x0000000002A80000-0x0000000003B0E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/4360-6-0x0000000002A80000-0x0000000003B0E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/4360-18-0x0000000002080000-0x0000000002082000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/4360-21-0x0000000002A80000-0x0000000003B0E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/4360-4-0x0000000002A80000-0x0000000003B0E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/4360-10-0x0000000002090000-0x0000000002091000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/4360-3-0x0000000002A80000-0x0000000003B0E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/4360-9-0x0000000002080000-0x0000000002082000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/4360-15-0x0000000002080000-0x0000000002082000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/5024-45-0x0000000000400000-0x0000000000441000-memory.dmp

                                                  Filesize

                                                  260KB

                                                • memory/5024-51-0x0000000000400000-0x0000000000441000-memory.dmp

                                                  Filesize

                                                  260KB