Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    20/04/2024, 08:26

General

  • Target

    2024-04-20_31c8e3744f241a06e6c10507f70105fa_bad-rabbit_doublepulsar_eternalpetya_karagany_notpetya_petrwrap_petya.exe

  • Size

    618KB

  • MD5

    31c8e3744f241a06e6c10507f70105fa

  • SHA1

    78ab7672f6b24ca6f7cf236d0609ab90d252b372

  • SHA256

    6d4eb90e5ccaf6fe5a129ae6b1d84835bfbb500e2028420ff47e63c593b04ebc

  • SHA512

    40e04a5c2d9fa6042e43865aa1de61893a24cc563ca84bf31e5b5a65c58ca3c987513675f50c3d89638240013a787fc1f34f84a387e3e1e8476b29074b312fdd

  • SSDEEP

    12288:Wn/X4NTS/x9jNG+w+9OqFoK323qdQYKU3ZuGOBqs8XIJ25h5pYi:sXATS/x9jNg+95vdQaZAssGlhE

Malware Config

Signatures

  • Mimikatz

    mimikatz is an open source tool to dump credentials on Windows.

  • Detects executables containing anti-forensic artifacts of deleting USN change journal. Observed in ransomware 11 IoCs
  • Detects executables containing commands for clearing Windows Event Logs 11 IoCs
  • mimikatz is an open source tool to dump credentials on Windows 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-20_31c8e3744f241a06e6c10507f70105fa_bad-rabbit_doublepulsar_eternalpetya_karagany_notpetya_petrwrap_petya.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-20_31c8e3744f241a06e6c10507f70105fa_bad-rabbit_doublepulsar_eternalpetya_karagany_notpetya_petrwrap_petya.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Windows\perfc.dat #1
      2⤵
      • Loads dropped DLL
      • Writes to the Master Boot Record (MBR)
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2520
      • C:\Windows\SysWOW64\cmd.exe
        /c schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 09:29
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2568
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 09:29
          4⤵
          • Creates scheduled task(s)
          PID:2612
      • C:\Users\Admin\AppData\Local\Temp\8E5B.tmp
        "C:\Users\Admin\AppData\Local\Temp\8E5B.tmp" \\.\pipe\{173EE1F0-C482-492D-B0CB-605F256F3E75}
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2572

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\perfc.dat

    Filesize

    353KB

    MD5

    71b6a493388e7d0b40c83ce903bc6b04

    SHA1

    34f917aaba5684fbe56d3c57d48ef2a1aa7cf06d

    SHA256

    027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745

    SHA512

    072205eca5099d9269f358fe534b370ff21a4f12d7938d6d2e2713f69310f0698e53b8aff062849f0b2a521f68bee097c1840993825d2a5a3aa8cf4145911c6f

  • \Users\Admin\AppData\Local\Temp\8E5B.tmp

    Filesize

    55KB

    MD5

    7e37ab34ecdcc3e77e24522ddfd4852d

    SHA1

    38e2855e11e353cedf9a8a4f2f2747f1c5c07fcf

    SHA256

    02ef73bd2458627ed7b397ec26ee2de2e92c71a0e7588f78734761d8edbdcd9f

    SHA512

    1b037a2aa8bf951d2ffe2f724aa0b2fbb39c2173215806ba0327bda7b096301d887f9bb7db46f9e04584b16aa6b1aaeaf67f0ecf5f20eb02ceac27c8753ca587

  • memory/1400-10-0x0000000000140000-0x00000000001DDAFE-memory.dmp

    Filesize

    630KB

  • memory/1400-4-0x0000000000140000-0x00000000001DDAFE-memory.dmp

    Filesize

    630KB

  • memory/1400-2-0x00000000001E0000-0x0000000000204000-memory.dmp

    Filesize

    144KB

  • memory/1400-0-0x0000000000140000-0x00000000001DDAFE-memory.dmp

    Filesize

    630KB

  • memory/1400-7-0x0000000000140000-0x00000000001DDAFE-memory.dmp

    Filesize

    630KB

  • memory/1400-8-0x00000000001E0000-0x0000000000204000-memory.dmp

    Filesize

    144KB

  • memory/1400-1-0x0000000000210000-0x0000000000212000-memory.dmp

    Filesize

    8KB

  • memory/1400-3-0x0000000000140000-0x00000000001DDAFE-memory.dmp

    Filesize

    630KB

  • memory/1400-6-0x0000000000210000-0x000000000021D000-memory.dmp

    Filesize

    52KB

  • memory/2520-20-0x00000000001A0000-0x00000000001FE000-memory.dmp

    Filesize

    376KB

  • memory/2520-21-0x00000000001A0000-0x00000000001FE000-memory.dmp

    Filesize

    376KB

  • memory/2520-23-0x00000000001A0000-0x00000000001FE000-memory.dmp

    Filesize

    376KB

  • memory/2520-12-0x00000000001A0000-0x00000000001FE000-memory.dmp

    Filesize

    376KB

  • memory/2520-34-0x00000000001A0000-0x00000000001FE000-memory.dmp

    Filesize

    376KB