Analysis

  • max time kernel
    137s
  • max time network
    106s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2024 23:04

General

  • Target

    719d9a015f8958725db107d6f2d39e08_JaffaCakes118.exe

  • Size

    1.4MB

  • MD5

    719d9a015f8958725db107d6f2d39e08

  • SHA1

    17f1006dea5792bbcf53469319ddb310db7c901c

  • SHA256

    97bfac611364f2053d75f131c489f57505972cf975162506b6988212700c656c

  • SHA512

    6599c63cb9318b07cf51322281e3a05e26444565c2d69af13b5381aa0e3593d94d2249b2e91976c40b9f11b55a3eccb2e156f5e06565bb899d22d5658ec0611f

  • SSDEEP

    24576:KZT1KgQju7Y7omjLwJ+l4vG1mmejfDk52XjT:WKiCLwJ+l4vG1mmejfg52XjT

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\719d9a015f8958725db107d6f2d39e08_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\719d9a015f8958725db107d6f2d39e08_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3448
    • C:\Windows\SysWOW64\drvhosty3.exe
      "C:\Windows\system32\drvhosty3.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:884
      • C:\ProgramData\syshost.exe
        C:\ProgramData\syshost.exe
        3⤵
        • Executes dropped EXE
        PID:952
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 952 -s 12
          4⤵
          • Program crash
          PID:3632
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 952 -ip 952
    1⤵
      PID:1144

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    System Location Discovery

    1
    T1614

    System Language Discovery

    1
    T1614.001

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\syshost.exe
      Filesize

      6KB

      MD5

      36c689700adbb227867e409938607270

      SHA1

      6123e236f73faa37600a60107a5b167980b83a61

      SHA256

      a2158014ecd471868954d0e97397f9df43e310c48d56fa0b5a6ef908dc654adf

      SHA512

      c75728ed30135032a6755e33b9034b98c871554c33a4b8ba1586e0b3282dbc65e3b61571d407365b24289dae2de56b514ef0db744f85e6648dc6432a33b85fef

    • C:\Windows\SysWOW64\drvhosty3.exe
      Filesize

      1.4MB

      MD5

      719d9a015f8958725db107d6f2d39e08

      SHA1

      17f1006dea5792bbcf53469319ddb310db7c901c

      SHA256

      97bfac611364f2053d75f131c489f57505972cf975162506b6988212700c656c

      SHA512

      6599c63cb9318b07cf51322281e3a05e26444565c2d69af13b5381aa0e3593d94d2249b2e91976c40b9f11b55a3eccb2e156f5e06565bb899d22d5658ec0611f

    • memory/884-23-0x0000000075550000-0x0000000075B01000-memory.dmp
      Filesize

      5.7MB

    • memory/884-24-0x0000000075550000-0x0000000075B01000-memory.dmp
      Filesize

      5.7MB

    • memory/3448-0-0x0000000075552000-0x0000000075553000-memory.dmp
      Filesize

      4KB

    • memory/3448-1-0x0000000075550000-0x0000000075B01000-memory.dmp
      Filesize

      5.7MB

    • memory/3448-2-0x0000000075550000-0x0000000075B01000-memory.dmp
      Filesize

      5.7MB

    • memory/3448-17-0x0000000075550000-0x0000000075B01000-memory.dmp
      Filesize

      5.7MB