Analysis

  • max time kernel
    122s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    14-09-2024 10:44

General

  • Target

    Loader.exe

  • Size

    274KB

  • MD5

    c0feb087f1cfa85fdb001e059f4c95c7

  • SHA1

    1d9ab2eb37f85bea36f3e6ded442154181c96964

  • SHA256

    38957fb3708884f1a8befb0c17b0fa81f57005a5de058772cc12bf357c548eab

  • SHA512

    99d641dcebec431d905b83ea89b5b5fadd5c029215345834b604aeca23d25d236bbbe65c2d3179ad9d7597764d1791d9cfd18b3dc2d463acda6e1e72b6159a50

  • SSDEEP

    6144:cf+BLtABPDsth6Ej/UZkI4TjkRy5fafTy4lI1D080T:vtK+I4TjkRyTF1DcT

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1280107935317495880/Q8mmvXU6Bc1Q-R-2e0aAMsbedaMqyt0txCOBc8XSsTRNeUIepUtoX2DE4a6MxP9SzEFB

Signatures

  • 44Caliber

    An open source infostealer written in C#.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Loader.exe
    "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2072

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2072-0-0x000007FEF56D3000-0x000007FEF56D4000-memory.dmp

    Filesize

    4KB

  • memory/2072-1-0x00000000011C0000-0x000000000120A000-memory.dmp

    Filesize

    296KB

  • memory/2072-20-0x000007FEF56D0000-0x000007FEF60BC000-memory.dmp

    Filesize

    9.9MB

  • memory/2072-52-0x000007FEF56D0000-0x000007FEF60BC000-memory.dmp

    Filesize

    9.9MB