Analysis

  • max time kernel
    130s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-08-2024 11:13

General

  • Target

    bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1.exe

  • Size

    303KB

  • MD5

    74d3f720e38b834198fee67e020bb736

  • SHA1

    5fab6ccb0748a2de502b877c34d2409b1118bd30

  • SHA256

    bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1

  • SHA512

    f4ae410699ba0a4cc21fa946e51f5364ab13ac176627509a346bcb7924ae76b23149ba78f643211d64bc59d7eef81d304b477b3310d09eb797c07afdddee0277

  • SSDEEP

    6144:b1E0T6MDdbICydeB1MnyCvG/9GzC6jmA1D0Lyf:b1z6yCvGFG+Y1D1f

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1254423260591030333/Im8Y-IPgPJTWTloM0jy_llzrxAFZLtGLTGrSJEpTfiSbOm4QV3WSBgCXN7xBYLC5ajH9

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.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1.exe
    "C:\Users\Admin\AppData\Local\Temp\bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:5008

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/5008-0-0x00007FFCC79E3000-0x00007FFCC79E5000-memory.dmp

    Filesize

    8KB

  • memory/5008-1-0x000002C8F9530000-0x000002C8F9582000-memory.dmp

    Filesize

    328KB

  • memory/5008-32-0x00007FFCC79E0000-0x00007FFCC84A1000-memory.dmp

    Filesize

    10.8MB

  • memory/5008-33-0x00007FFCC79E0000-0x00007FFCC84A1000-memory.dmp

    Filesize

    10.8MB