Analysis

  • max time kernel
    135s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-04-2024 00:43

General

  • Target

    ad163810f30beced498a9a1a318feace07c079aba853f34684d2e1c9a796ab04.exe

  • Size

    281KB

  • MD5

    c2a957c32ba544e18bdce5c89b31e4ec

  • SHA1

    4ffea92024bfa254b6cde85f9b3bc203d1c268fb

  • SHA256

    ad163810f30beced498a9a1a318feace07c079aba853f34684d2e1c9a796ab04

  • SHA512

    97b080498fca48a287f15cbae0a12042f865f839af67d29c51459ef685eb25f49ce089424be1886ab7c7e5f5cf922770e80f2874f12c9aaeff63b749ec612827

  • SSDEEP

    3072:idHdrST3duBTeYNq83VpxQinpsXfuAfAQcUC+bqAHd84sHjhIrdlfGm23hI/KQ7L:cs3duBaYNqhWQGWqAHS4sHjKZxE

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1227237091100856442/BrQxsxv7iOW1INure2NRj8h9j_kNz4zTZWTlu2pl8X31A4tO36IWEoyPoqQ6KOZ7S1qy

Signatures

  • 44Caliber

    An open source infostealer written in C#.

  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects executables Discord URL observed in first stage droppers 1 IoCs
  • Detects executables referencing Discord tokens regular expressions 1 IoCs
  • Detects executables referencing credit card regular expressions 1 IoCs
  • Detects executables referencing many VPN software clients. Observed in infosteslers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • 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 behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ad163810f30beced498a9a1a318feace07c079aba853f34684d2e1c9a796ab04.exe
    "C:\Users\Admin\AppData\Local\Temp\ad163810f30beced498a9a1a318feace07c079aba853f34684d2e1c9a796ab04.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1196

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1196-0-0x000002C67D6D0000-0x000002C67D71C000-memory.dmp

    Filesize

    304KB

  • memory/1196-10-0x00007FF8428E0000-0x00007FF8433A1000-memory.dmp

    Filesize

    10.8MB

  • memory/1196-28-0x000002C67FDE0000-0x000002C67FDF0000-memory.dmp

    Filesize

    64KB

  • memory/1196-32-0x00007FF8428E0000-0x00007FF8433A1000-memory.dmp

    Filesize

    10.8MB