Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-06-2024 01:06

General

  • Target

    933ae8a267d337cad92bb4e5c917e964_JaffaCakes118.exe

  • Size

    5.5MB

  • MD5

    933ae8a267d337cad92bb4e5c917e964

  • SHA1

    e0294740f7f75358b226f70a12635bd125a1b39b

  • SHA256

    acfa6646bdbeb26fd929107c8ff0e31af29a9b07ef74be5c5620befbed7e997b

  • SHA512

    2d7153445700134e29f9cec25bab7976023fd1a1331c4dc861040a814858b475afda8ce1475bdb2f33ab7c5d5a659cf3cdf623fd62fcf61d0966654a85dc6a6d

  • SSDEEP

    98304:N0qh0r0q2wf02GzMwDws0q40q0qC0FwwRZHwNwYwz0qm0S0qC0mR2wqEwQ0qE0GK:N7effIPEsy58doQaTzwZ8Jq3QKnqVtxF

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Drops file in Drivers directory 2 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 3 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • UPX packed file 3 IoCs

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

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

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

  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Modifies WinLogon 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\933ae8a267d337cad92bb4e5c917e964_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\933ae8a267d337cad92bb4e5c917e964_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops file in Drivers directory
    • Sets service image path in registry
    • Loads dropped DLL
    • Adds Run key to start application
    • Enumerates connected drives
    • Modifies WinLogon
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3124
    • C:\Users\Admin\AppData\Local\Temp\933ae8a267d337cad92bb4e5c917e964_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\933ae8a267d337cad92bb4e5c917e964_JaffaCakes118.exe
      2⤵
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1716
      • C:\Users\Admin\AppData\Local\Temp\933ae8a267d337cad92bb4e5c917e964_JaffaCakes118.exe
        C:\Users\Admin\AppData\Local\Temp\933ae8a267d337cad92bb4e5c917e964_JaffaCakes118.exe
        3⤵
        • Enumerates connected drives
        PID:2712
    • C:\Windows\SysWOW64\reg.exe
      reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects" /f
      2⤵
      • Installs/modifies Browser Helper Object
      PID:2204
    • C:\Users\Admin\AppData\Local\Temp\933ae8a267d337cad92bb4e5c917e964_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\933ae8a267d337cad92bb4e5c917e964_JaffaCakes118.exe
      2⤵
      • Enumerates connected drives
      PID:944

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

4
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

2
T1547.004

Browser Extensions

1
T1176

Privilege Escalation

Boot or Logon Autostart Execution

4
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

2
T1547.004

Defense Evasion

Modify Registry

5
T1112

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\cftmon.exe
    Filesize

    5.5MB

    MD5

    8e63c8dc02d5cb790fc04c18009e73bc

    SHA1

    db21d2ef6181861342a3b827e277754a0d8348c5

    SHA256

    56dcafefe8ce5e285ed6fc623e4fc4a9a446c6081a977a5d0d7b90887a4ec915

    SHA512

    219425cd18e4b5fe873418a3a9affed02a4f86e05c8387220d38ce3b7f6c4442390f577aafd098975710cc2177da10666a606a3fd7f06b94ef8e38b2241a0720

  • C:\Windows\SysWOW64\ftpdll.dll
    Filesize

    5KB

    MD5

    d807aa04480d1d149f7a4cac22984188

    SHA1

    ffd5be65fd10017e34c11cecd105ebf4aa6c0cd9

    SHA256

    eddf092d901afe128322910c3ff41a3f242d33d6b4cdf91ece327076b324ccbb

    SHA512

    875543583c20ab164f37a4fb2587d234ce0a15d649d22b0d1dae5933f0a7683db170578746ea4458c51fec26e2243c6ec00dc10db8d4289789e50d5800cf863e

  • memory/944-24-0x0000000000400000-0x0000000000423000-memory.dmp
    Filesize

    140KB

  • memory/1716-23-0x0000000000400000-0x0000000000423000-memory.dmp
    Filesize

    140KB

  • memory/2712-19-0x0000000000400000-0x0000000000423000-memory.dmp
    Filesize

    140KB

  • memory/2712-25-0x0000000000400000-0x0000000000423000-memory.dmp
    Filesize

    140KB

  • memory/3124-0-0x0000000000400000-0x0000000000423000-memory.dmp
    Filesize

    140KB

  • memory/3124-18-0x0000000010000000-0x000000001010B000-memory.dmp
    Filesize

    1.0MB

  • memory/3124-20-0x0000000010000000-0x000000001010B000-memory.dmp
    Filesize

    1.0MB

  • memory/3124-21-0x0000000000400000-0x0000000000423000-memory.dmp
    Filesize

    140KB