Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-08-2024 22:45

General

  • Target

    8207a2d48651c610671973987148916e_JaffaCakes118.exe

  • Size

    101KB

  • MD5

    8207a2d48651c610671973987148916e

  • SHA1

    da6f837204486a5ab7b57588b1fe5611d2945613

  • SHA256

    c8958f37264cb76cdce7948dc673d7d8a677ce2d002bd023a30f6613fe53dfa9

  • SHA512

    18a88f604410af92d43e6175278c2eb4bd83d680e5aae5eaa2d4406e0dbd7266ccd89aa339120be411507b603b18d744b8d62b39adf1d29f794ce31522f551e3

  • SSDEEP

    1536:D1uM3g3u1CEVEdBQg311Fu0DAq/BfBNM1c5ALltMuJcG5kXOezNoRIQxwaheVPiK:xu73ujE3511sotrKLMuv2zyIMwmeVaK

Malware Config

Signatures

  • Drops file in Drivers directory 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • UPX packed file 9 IoCs

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

  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Drops file in System32 directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8207a2d48651c610671973987148916e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8207a2d48651c610671973987148916e_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:676
    • C:\Users\Admin\AppData\Local\Temp\130.exe
      "C:\Users\Admin\AppData\Local\Temp\130.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:4928
    • C:\Users\Admin\AppData\Local\Temp\DS_Server.exe
      "C:\Users\Admin\AppData\Local\Temp\DS_Server.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1100
      • C:\Windows\SysWOW64\serverqb.exe
        "C:\Windows\system32\serverqb.exe"
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4956
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /C del C:\Windows\SysWOW64\serverqb.exe > nul
          4⤵
          • System Location Discovery: System Language Discovery
          PID:216
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /C del C:\Users\Admin\AppData\Local\Temp\DS_SER~1.EXE > nul
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2928
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x484 0x2f4
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2544

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\130.exe

    Filesize

    78KB

    MD5

    af68307cfdfb77c33404118fbde36e37

    SHA1

    f7a9a3204286848ac06a4a40b75cefd747eebb82

    SHA256

    6ebca32fb010d4d51de075bade679295ad39f29100a2c5bcd79cfdd09793a1a4

    SHA512

    611df2e9b563a36d7d02544e9b71c5afbb81cb9b98714a77747467fde8a63feabaacbc308871fac1c5aa1fea871711cb5af33b5d7eabe92009896ce39dac0ddf

  • C:\Users\Admin\AppData\Local\Temp\DS_Server.exe

    Filesize

    17KB

    MD5

    2642506650ac5ada29e46e24e6bb3d2d

    SHA1

    d922ac0148a343ffe6d20910f3f049a97da13900

    SHA256

    90677d892b05e80f6eddfc6cca1cae2b6a069c00008229942b0020e06b56df2f

    SHA512

    7ce91d07a53e028acbcbe4259fde8c4958833a9ae5610eaca7c05c65253a5eb0a931a3e3352d966ba9a9bdc59f7f3566a6c992a4abd4a9b727f79261fb9a1a30

  • C:\Windows\SysWOW64\drivers\PCIDump.sys

    Filesize

    4KB

    MD5

    d058dd1757e857d2cf1afcadce95a521

    SHA1

    3d5563ce8e7a11110d238b25711a176a63bfb703

    SHA256

    a0cd51ff93d087654b5ceccc279df8eb5e9783a530a3bca83a06c7f82025885d

    SHA512

    748937d6ae01ddbe97470754b73563c04e492d7980a8e0bbb9ed7838e85c8cff912d087204325664c3051aeba15606d23b9b507b211a6369e7ecc7bda175da44

  • memory/676-0-0x0000000000400000-0x000000000041ADEE-memory.dmp

    Filesize

    107KB

  • memory/676-25-0x0000000000400000-0x000000000041ADEE-memory.dmp

    Filesize

    107KB

  • memory/1100-24-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/1100-37-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/4928-12-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/4928-39-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/4928-40-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/4928-41-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/4928-45-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB