Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-03-2024 22:00

General

  • Target

    4554b2e507e6c89c9a7d51097f2f155f_JaffaCakes118.exe

  • Size

    332KB

  • MD5

    4554b2e507e6c89c9a7d51097f2f155f

  • SHA1

    3266d2f320b9fa50051570da99e7ed62046e2203

  • SHA256

    be032b655d9a935fbca887adfc5e478085b7d64c96720c57da870c2d463ed881

  • SHA512

    79c4d1e8df906405e729dc42fa0205d5d792d23e4227e558a5f5ceec2f2d23875c5edf635ffc592a49ef5f4547c866adb262ee9197a0e10c9fc08343264d0fb7

  • SSDEEP

    3072:NC7BSM9qPJ5nlqHBJR4RAHjxT0uRdDh/SQgnSpI/7C4YmIBPoeWUNSJ/Hf9ArjxE:NHUR/DiuFZudzCvvPSJ/HfmoIZ0AMz

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://gejajoo7.top/

http://sysaheu9.top/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\4554b2e507e6c89c9a7d51097f2f155f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4554b2e507e6c89c9a7d51097f2f155f_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:644
    • C:\Users\Admin\AppData\Local\Temp\4554b2e507e6c89c9a7d51097f2f155f_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\4554b2e507e6c89c9a7d51097f2f155f_JaffaCakes118.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:4608
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4608 -s 328
        3⤵
        • Program crash
        PID:3012
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4608 -ip 4608
    1⤵
      PID:1884

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/644-1-0x0000000003000000-0x0000000003100000-memory.dmp

      Filesize

      1024KB

    • memory/644-2-0x00000000001C0000-0x00000000001C9000-memory.dmp

      Filesize

      36KB

    • memory/3480-5-0x00000000033E0000-0x00000000033F6000-memory.dmp

      Filesize

      88KB

    • memory/4608-3-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/4608-4-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/4608-9-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB