Analysis

  • max time kernel
    13s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    30-12-2023 03:34

General

  • Target

    0d1ce9ec311262c574e65633549c9c4a.exe

  • Size

    1.2MB

  • MD5

    0d1ce9ec311262c574e65633549c9c4a

  • SHA1

    541ba677282a00d73a18fc06123cf7c61a1d1f57

  • SHA256

    64f4e1cdebbb2d16e19e189aa15ac511039b998d837b04aa34fca073084af019

  • SHA512

    daa70c786ac049a18132718ec3bb05480cc97ff92419f9bb78614e93de2dff9c8d034c823ecad7a2323c52a554d83ee826d9c46e3a1c4942e842a3597074e96d

  • SSDEEP

    24576:0WJtTGnwqb3ZWZfbuoDGOkf/FaIGoXjTv:0WPTGnpb3ZKTue2dT

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/866738169181372456/leUwW_rAYekiwOVhgk8WOe6mYy271-wPgyPdfdgGkW3LvRIrgaePX3yC-m_SGyjcPYeJ

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 1 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0d1ce9ec311262c574e65633549c9c4a.exe
    "C:\Users\Admin\AppData\Local\Temp\0d1ce9ec311262c574e65633549c9c4a.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2860
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2860 -s 1088
      2⤵
      • Program crash
      PID:2784

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2860-0-0x0000000000C00000-0x0000000000FAE000-memory.dmp

    Filesize

    3.7MB

  • memory/2860-2-0x0000000073E10000-0x00000000744FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2860-1-0x0000000000C00000-0x0000000000FAE000-memory.dmp

    Filesize

    3.7MB

  • memory/2860-3-0x0000000005890000-0x00000000058D0000-memory.dmp

    Filesize

    256KB

  • memory/2860-26-0x0000000000C00000-0x0000000000FAE000-memory.dmp

    Filesize

    3.7MB

  • memory/2860-27-0x0000000073E10000-0x00000000744FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2860-28-0x0000000005890000-0x00000000058D0000-memory.dmp

    Filesize

    256KB