Analysis

  • max time kernel
    147s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-03-2024 01:28

General

  • Target

    1fde4c0ddc141022ae31beadbae65aca.exe

  • Size

    303KB

  • MD5

    1fde4c0ddc141022ae31beadbae65aca

  • SHA1

    ad4767a9905590f29e588fde1cd19a124fa42ef4

  • SHA256

    59a6f06a6c3fb38fea0456447ef4b2be6c32b66c5eee189df4dcd07b7802cfb6

  • SHA512

    b1a8bbc8a876355a6f04b1e40112f1ec1931f3d6bbab7036f87d8661b025310cd854dd789ca19fe8052d003c234ba607f3d5e27581e333b160ad2a833a1d30f1

  • SSDEEP

    6144:bb2T6MDdbICydeB4mAQG0yB5cqVsvurTbmI1D0rAC:bb8HAQG0yXcsTR1DVC

Malware Config

Extracted

Family

44caliber

C2

https://discordapp.com/api/webhooks/1218245532355395716/g11t27knevSG81QEKAU9x-8eGlSzRRXTzD3cakygbS3BZNqW4JAN5zponvMiNKqlhNYv

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\1fde4c0ddc141022ae31beadbae65aca.exe
    "C:\Users\Admin\AppData\Local\Temp\1fde4c0ddc141022ae31beadbae65aca.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4216

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4216-0-0x0000013DFD150000-0x0000013DFD1A2000-memory.dmp

    Filesize

    328KB

  • memory/4216-30-0x00007FFAB0740000-0x00007FFAB1201000-memory.dmp

    Filesize

    10.8MB

  • memory/4216-31-0x0000013DFD570000-0x0000013DFD580000-memory.dmp

    Filesize

    64KB

  • memory/4216-34-0x00007FFAB0740000-0x00007FFAB1201000-memory.dmp

    Filesize

    10.8MB