Analysis

  • max time kernel
    120s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    08-05-2021 13:01

General

  • Target

    AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe

  • Size

    444KB

  • MD5

    fd442753c3895d868eed72f7854e2fba

  • SHA1

    477dc12f213dd05a15b61207926b478d3a0d04c7

  • SHA256

    aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202

  • SHA512

    1a7ff91196019abe9dfa93bfaca299ecd87693ef173560951b4d55f9d0c66355535bef724de26865205419e7638e57c762e332d7eff85187e9695f0a92e1d0c2

Malware Config

Signatures

  • CrypVault

    Ransomware family which makes encrypted files look like they have been quarantined by AV.

  • Pony,Fareit

    Pony is a Remote Access Trojan application that steals information.

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Executes dropped EXE 3 IoCs
  • UPX packed file 2 IoCs

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

  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 1 IoCs
  • 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 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies registry class 2 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe
    "C:\Users\Admin\AppData\Local\Temp\AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe"
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3152
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F
      2⤵
        PID:3704
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c ren "C:\Users\Admin\AppData\Local\Temp\CF8C8F" 7za.exe
        2⤵
          PID:1028
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F
          2⤵
            PID:1660
          • C:\Users\Admin\AppData\Local\Temp\7za.exe
            "C:\Users\Admin\AppData\Local\Temp\7za.exe" e "C:\Users\Admin\AppData\Local\Temp\2D4F861D8D" -y -p2D4F861D8D
            2⤵
            • Executes dropped EXE
            PID:2148
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F
            2⤵
              PID:1128
            • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
              "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.doc" /o ""
              2⤵
              • Checks processor information in registry
              • Enumerates system info in registry
              • Suspicious behavior: AddClipboardFormatListener
              • Suspicious use of SetWindowsHookEx
              PID:1276
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F
              2⤵
                PID:3612
              • C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.exe
                "C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.exe"
                2⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of SetWindowsHookEx
                • Suspicious use of WriteProcessMemory
                PID:2928
                • C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.exe
                  "C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.exe"
                  3⤵
                  • Executes dropped EXE
                  • Drops startup file
                  • Modifies registry class
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:472
                  • C:\Windows\SysWOW64\mshta.exe
                    "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\VAULT.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
                    4⤵
                      PID:2872
                    • C:\Windows\SysWOW64\wbem\WMIC.exe
                      "C:\Windows\System32\wbem\WMIC.exe" process call create "cmd.exe /c vssadmin.exe delete shadows /all /quiet & bcdedit.exe /set {default} recoveryenabled no & bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures"
                      4⤵
                      • Suspicious use of AdjustPrivilegeToken
                      PID:1896
                • C:\Windows\SysWOW64\cmd.exe
                  "C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F
                  2⤵
                    PID:3900
                • C:\Windows\system32\cmd.exe
                  cmd.exe /c vssadmin.exe delete shadows /all /quiet & bcdedit.exe /set {default} recoveryenabled no & bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures
                  1⤵
                  • Process spawned unexpected child process
                  • Suspicious use of WriteProcessMemory
                  PID:3968
                  • C:\Windows\system32\vssadmin.exe
                    vssadmin.exe delete shadows /all /quiet
                    2⤵
                    • Interacts with shadow copies
                    PID:3868
                  • C:\Windows\system32\bcdedit.exe
                    bcdedit.exe /set {default} recoveryenabled no
                    2⤵
                    • Modifies boot configuration data using bcdedit
                    PID:2568
                  • C:\Windows\system32\bcdedit.exe
                    bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures
                    2⤵
                    • Modifies boot configuration data using bcdedit
                    PID:3416
                • C:\Windows\system32\vssvc.exe
                  C:\Windows\system32\vssvc.exe
                  1⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1280

                Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Temp\2D4F861D8D

                  MD5

                  efe5c5a45d6b6746daa3272d09e175d7

                  SHA1

                  80a805c3e5a73a121ecbc2c2aed0b2e846890477

                  SHA256

                  5f0156b73d2b9f5d0a999734812ca0d0881fe683a331737df9ded5d24a145271

                  SHA512

                  410553b0c58e699fb83557815cdc4e22dec1b14e870326f62dd09c2e26bd8d5c8a1fde66470a55f1cfa4b076be66747595f83cfa71070d38c6d7f01846b70a75

                • C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.doc

                  MD5

                  efcd0a5ec6bb1d981333bf9dea7a72ee

                  SHA1

                  b9ca0a20adcf6c69dd626e0de86468e4a5514fe3

                  SHA256

                  718e07ae563bcf629616ac3f056930e804af88e38377b98629ba60257f666699

                  SHA512

                  dd41d489164891a5c8c2c582f77f6b8c8b54360849ec38b7af0fec4b28137172a4ef9cc2fe6eb10726431152751f3affbc1dd19671bff841742404d809180457

                • C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.exe

                  MD5

                  810f74773b1d921274c3766df5c00445

                  SHA1

                  90d547916e077dbb6fe56b215df4bc86b936a6f6

                  SHA256

                  55eee544f1210a27540b418936b2e1240dcf6818fb4023374596621a91f6438f

                  SHA512

                  e4d8d6ae1629021e28a55e459e1e8835142a19c3c9c97b195a523e2487cac6f46e366b3c0c39ef504e1943d7c74c76d461c963d0153dca1fadf3452c499f7388

                • C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.exe

                  MD5

                  810f74773b1d921274c3766df5c00445

                  SHA1

                  90d547916e077dbb6fe56b215df4bc86b936a6f6

                  SHA256

                  55eee544f1210a27540b418936b2e1240dcf6818fb4023374596621a91f6438f

                  SHA512

                  e4d8d6ae1629021e28a55e459e1e8835142a19c3c9c97b195a523e2487cac6f46e366b3c0c39ef504e1943d7c74c76d461c963d0153dca1fadf3452c499f7388

                • C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.exe

                  MD5

                  810f74773b1d921274c3766df5c00445

                  SHA1

                  90d547916e077dbb6fe56b215df4bc86b936a6f6

                  SHA256

                  55eee544f1210a27540b418936b2e1240dcf6818fb4023374596621a91f6438f

                  SHA512

                  e4d8d6ae1629021e28a55e459e1e8835142a19c3c9c97b195a523e2487cac6f46e366b3c0c39ef504e1943d7c74c76d461c963d0153dca1fadf3452c499f7388

                • C:\Users\Admin\AppData\Local\Temp\7za.exe

                  MD5

                  42badc1d2f03a8b1e4875740d3d49336

                  SHA1

                  cee178da1fb05f99af7a3547093122893bd1eb46

                  SHA256

                  c136b1467d669a725478a6110ebaaab3cb88a3d389dfa688e06173c066b76fcf

                  SHA512

                  6bc519a7368ee6bd8c8f69f2d634dd18799b4ca31fbc284d2580ba625f3a88b6a52d2bc17bea0e75e63ca11c10356c47ee00c2c500294abcb5141424fc5dc71c

                • C:\Users\Admin\AppData\Local\Temp\CF8C8F

                  MD5

                  42badc1d2f03a8b1e4875740d3d49336

                  SHA1

                  cee178da1fb05f99af7a3547093122893bd1eb46

                  SHA256

                  c136b1467d669a725478a6110ebaaab3cb88a3d389dfa688e06173c066b76fcf

                  SHA512

                  6bc519a7368ee6bd8c8f69f2d634dd18799b4ca31fbc284d2580ba625f3a88b6a52d2bc17bea0e75e63ca11c10356c47ee00c2c500294abcb5141424fc5dc71c

                • C:\Users\Admin\Desktop\VAULT.hta

                  MD5

                  1cf60361078e1c2f1219d27c4b3e760c

                  SHA1

                  08d350d205da687672b13e22b253932dd1708e75

                  SHA256

                  c2d9c1bd8bb434dffd5ebbd0e8020ee73123f2e8134b19cbde4b6458f0d05a43

                  SHA512

                  90f973c08c663dc7ca8575196ca2d6939bbeb9e1943268e8c8bae3b5cd895e85f654726924c86a0f1ffca4830f05c75ac6e80b44d4adeff345e9ff2cacaacccb

                • memory/472-130-0x0000000000418C90-mapping.dmp

                • memory/472-129-0x0000000000400000-0x0000000000E28000-memory.dmp

                  Filesize

                  10.2MB

                • memory/472-138-0x0000000000400000-0x000000000041A000-memory.dmp

                  Filesize

                  104KB

                • memory/1028-115-0x0000000000000000-mapping.dmp

                • memory/1128-121-0x0000000000000000-mapping.dmp

                • memory/1276-135-0x00007FFD35790000-0x00007FFD357A0000-memory.dmp

                  Filesize

                  64KB

                • memory/1276-139-0x00007FFD35790000-0x00007FFD357A0000-memory.dmp

                  Filesize

                  64KB

                • memory/1276-146-0x00007FFD4E340000-0x00007FFD50235000-memory.dmp

                  Filesize

                  31.0MB

                • memory/1276-144-0x00007FFD50240000-0x00007FFD5132E000-memory.dmp

                  Filesize

                  16.9MB

                • memory/1276-136-0x00007FFD567F0000-0x00007FFD59313000-memory.dmp

                  Filesize

                  43.1MB

                • memory/1276-132-0x00007FFD35790000-0x00007FFD357A0000-memory.dmp

                  Filesize

                  64KB

                • memory/1276-133-0x00007FFD35790000-0x00007FFD357A0000-memory.dmp

                  Filesize

                  64KB

                • memory/1276-134-0x00007FFD35790000-0x00007FFD357A0000-memory.dmp

                  Filesize

                  64KB

                • memory/1276-123-0x0000000000000000-mapping.dmp

                • memory/1660-117-0x0000000000000000-mapping.dmp

                • memory/1896-143-0x0000000000000000-mapping.dmp

                • memory/2148-118-0x0000000000000000-mapping.dmp

                • memory/2568-148-0x0000000000000000-mapping.dmp

                • memory/2872-142-0x0000000000000000-mapping.dmp

                • memory/2928-137-0x00000000021C0000-0x00000000021C5000-memory.dmp

                  Filesize

                  20KB

                • memory/2928-126-0x0000000000000000-mapping.dmp

                • memory/3416-149-0x0000000000000000-mapping.dmp

                • memory/3612-124-0x0000000000000000-mapping.dmp

                • memory/3704-114-0x0000000000000000-mapping.dmp

                • memory/3868-147-0x0000000000000000-mapping.dmp

                • memory/3900-127-0x0000000000000000-mapping.dmp