Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06-09-2024 06:36

General

  • Target

    cee61f99f9b0b9e118ff49d8405ece85_JaffaCakes118.exe

  • Size

    643KB

  • MD5

    cee61f99f9b0b9e118ff49d8405ece85

  • SHA1

    2eeaa9117704d6103374db01a2117c3c3a42df30

  • SHA256

    9ad323b95112e72c7a8eacb9cad47257bf27da4d92e61f9747171d10c276e8d0

  • SHA512

    7db52166318d13c7ba4a4df551bcc1e0c034273b3a4e87837fc227c02f76fb448865ca7330e98e7005dba013d999949bf30869d2c47c9c0cf00c9ec8fe1b6519

  • SSDEEP

    12288:4TW0zR/9lThgzEkrJlNJy2GlcC2g2vRtdDxOtNbsJ06WiIg9:olT2ZJlNg2nvvRtpxOzbI0NiN9

Malware Config

Signatures

  • FlawedAmmyy RAT

    Remote-access trojan based on leaked code for the Ammyy remote admin software.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops file in System32 directory 5 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cee61f99f9b0b9e118ff49d8405ece85_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\cee61f99f9b0b9e118ff49d8405ece85_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:2860
  • C:\Users\Admin\AppData\Local\Temp\cee61f99f9b0b9e118ff49d8405ece85_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\cee61f99f9b0b9e118ff49d8405ece85_JaffaCakes118.exe" -service -lunch
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3004
    • C:\Users\Admin\AppData\Local\Temp\cee61f99f9b0b9e118ff49d8405ece85_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\cee61f99f9b0b9e118ff49d8405ece85_JaffaCakes118.exe"
      2⤵
      • Checks computer location settings
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Modifies system certificate store
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3068

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\AMMYY\settings.bin

    Filesize

    65B

    MD5

    dee22053b47b506751877497afc476a3

    SHA1

    e077865d403fa8832bd8c6f6d58dddbd8f0c494e

    SHA256

    faa82e96142a04e5b74eebdd7815318916e99bc4e06c13bb662c77b85d9006a6

    SHA512

    646db08442c2924f5bef0ad79c6f99820945e54963be32152766bd3be93db78c72377624ffdb60862567563970aee9f6288fb476cd1bbef45566cfb792de7c0c