Analysis

  • max time kernel
    148s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-04-2024 18:26

General

  • Target

    f883df7955bc91ac717fafbfbfb071e4_JaffaCakes118.exe

  • Size

    1.2MB

  • MD5

    f883df7955bc91ac717fafbfbfb071e4

  • SHA1

    c2740074ba90763054db4032925d0828060d6b5e

  • SHA256

    790019291f03e723bd5b061142c7511938bacaeb782875a5ddfc91cd9c2ee179

  • SHA512

    0caecb5f6ac085e385e7617d4dd1a329819617aa05809c6168f387bf08a1830ea0ad5ea299bedffcb9b4282b3df1e466a7fe4f8a38afff80abd63aea0e8bc71d

  • SSDEEP

    24576:Sp6QlVvkMxKht99iIp/puHMWZnaXnxN99uKq5tAVZnY0rUvVDDaE:U6cBkM0riWpuHM2aXxnIBPU8h

Malware Config

Extracted

Family

44caliber

C2

https://discordapp.com/api/webhooks/869534850812637194/fQ9SG1wbGT8eouo6vEUs5wADugNDHDhRWKq5RBk6gLjlDi9xEUaR3leD9AhGscQ-u377

Signatures

  • 44Caliber

    An open source infostealer written in C#.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f883df7955bc91ac717fafbfbfb071e4_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f883df7955bc91ac717fafbfbfb071e4_JaffaCakes118.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:2736
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2736 -s 1364
      2⤵
      • Program crash
      PID:4512
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2736 -ip 2736
    1⤵
      PID:2184

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Credential Access

    Unsecured Credentials

    2
    T1552

    Credentials In Files

    2
    T1552.001

    Collection

    Data from Local System

    2
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\44\Browsers\Firefox\Bookmarks.txt
      Filesize

      105B

      MD5

      2e9d094dda5cdc3ce6519f75943a4ff4

      SHA1

      5d989b4ac8b699781681fe75ed9ef98191a5096c

      SHA256

      c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

      SHA512

      d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

    • memory/2736-0-0x0000000000460000-0x000000000081A000-memory.dmp
      Filesize

      3.7MB

    • memory/2736-1-0x0000000000460000-0x000000000081A000-memory.dmp
      Filesize

      3.7MB

    • memory/2736-3-0x0000000000460000-0x000000000081A000-memory.dmp
      Filesize

      3.7MB

    • memory/2736-2-0x00000000745B0000-0x0000000074D60000-memory.dmp
      Filesize

      7.7MB

    • memory/2736-4-0x0000000005FB0000-0x0000000005FC0000-memory.dmp
      Filesize

      64KB

    • memory/2736-39-0x0000000000460000-0x000000000081A000-memory.dmp
      Filesize

      3.7MB

    • memory/2736-40-0x00000000745B0000-0x0000000074D60000-memory.dmp
      Filesize

      7.7MB