Overview

overview

10

Static

static

7

bc8d84a32d...18.exe

windows7-x64

10

bc8d84a32d...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    140s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/08/2024, 16:52

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General

  • Target

    bc8d84a32d54ff8b54ce5f685f1b7955_JaffaCakes118.exe

  • Size

    143KB

  • MD5

    bc8d84a32d54ff8b54ce5f685f1b7955

  • SHA1

    7bbea3f4e495822e3c3160a3d963909fbc9fac40

  • SHA256

    1166c4ec8df0dee6736cbe71662451b547dedbb4e45e086d20c2f64b328e5ac8

  • SHA512

    b8a3f97284e009a7ef714d4184ebc1cb130131d5fc944b75287b38721f5a453dfa01f588689141d53cc6a4e462482fa650fec45495a30cf3dcdac8afef665372

  • SSDEEP

    3072:TdssoWyRlUF0P9dCsZSpt1LDs2qj2yB0/2l7WVitYW5SUxSpsVH2E:e9yqFEptNDFqj2yB2lV7+blHP

Score
10/10
discoveryevasionpersistenceupx

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Disables Task Manager via registry modification
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • UPX packed file 3 IoCs

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

    upx
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

    discovery
  • Kills process with taskkill 1 IoCs
    evasion
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bc8d84a32d54ff8b54ce5f685f1b7955_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\bc8d84a32d54ff8b54ce5f685f1b7955_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3588
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /f /im explorer.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:2028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/3588-0-0x0000000000400000-0x0000000000439000-memory.dmp

    Filesize

    228KB

    Download

  • memory/3588-1-0x0000000000460000-0x0000000000465000-memory.dmp

    Filesize

    20KB

    Download

  • memory/3588-2-0x0000000000400000-0x0000000000439000-memory.dmp

    Filesize

    228KB

    Download

  • memory/3588-3-0x0000000000400000-0x0000000000439000-memory.dmp

    Filesize

    228KB

    Download