Analysis

  • max time kernel
    150s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    01-01-2025 08:09

General

  • Target

    JaffaCakes118_4d797295c0435838adfea1948f963069.exe

  • Size

    714KB

  • MD5

    4d797295c0435838adfea1948f963069

  • SHA1

    0b13914a8effd2cdde48617d66ae0d2bff9bcb43

  • SHA256

    a332d49c5566df484ce0fb6165ee4e5a611add6a312db9705154a2b9b0e5d9d0

  • SHA512

    4f03b33e55e09b8a2eb4f898ef75517a9041d567eb698318ba2c25435b2fa273e82bd05207b616352cbbf11523a5439d472e1e94e508fdd9f8bbb2925d51131a

  • SSDEEP

    12288:CaAchpWsuVTv7ItY8XljyypHP7cOLBev03hlULsmWZ++09ZcKDVsgd+:TAEENIq8XwyVPQclDq/+WnpsS+

Malware Config

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks processor information in registry 2 TTPs 8 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4d797295c0435838adfea1948f963069.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4d797295c0435838adfea1948f963069.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2776
    • C:\Users\Admin\AppData\Roaming\GoogleUpdater\GoogleUpdater.exe
      "C:\Users\Admin\AppData\Roaming\GoogleUpdater\GoogleUpdater.exe"
      2⤵
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2456
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\_dcsc_.bat" "
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3032
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2632

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\_dcsc_.bat

    Filesize

    119B

    MD5

    d35d7ad614723e04ec8496897b1d82cf

    SHA1

    2d2342ac8454e10437b69e2f343c144d8501f17e

    SHA256

    cb1bdef33b6475cbd8634f2499622ce816d493643352569b8515d3681eae13b2

    SHA512

    a006631c4ee52ebdfce19cc2b9cfcfdb69eb7f564548ca6b2f14b578e08199fd4cd475648458e9ae8491e98c0d2e01a9962969d8f7ce42f104f6c56e0be18e16

  • C:\Users\Admin\AppData\Roaming\GoogleUpdater\GoogleUpdater.exe

    Filesize

    714KB

    MD5

    4d797295c0435838adfea1948f963069

    SHA1

    0b13914a8effd2cdde48617d66ae0d2bff9bcb43

    SHA256

    a332d49c5566df484ce0fb6165ee4e5a611add6a312db9705154a2b9b0e5d9d0

    SHA512

    4f03b33e55e09b8a2eb4f898ef75517a9041d567eb698318ba2c25435b2fa273e82bd05207b616352cbbf11523a5439d472e1e94e508fdd9f8bbb2925d51131a

  • memory/2456-27-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2456-28-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2456-23-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2456-24-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2456-25-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2456-26-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2456-36-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2456-35-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2456-29-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2456-30-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2456-31-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2456-32-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2456-33-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2456-34-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2776-20-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2776-0-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB