General

  • Target

    file.exe

  • Size

    1.3MB

  • Sample

    230921-ftpf7sfd83

  • MD5

    53593f2452e63d9f0fa67b9ee31e884b

  • SHA1

    a3f0cee94a8b2380881bdc28659c9c16e72d4039

  • SHA256

    f2d823dd2bca692c89a26b894349416fc5d32e3267b906c8666db0dd3db1c3ea

  • SHA512

    5e5bb1dee9b4a2b52e7326250b52324910adce15fc0cdfa4fce101cf81539f761ac7fd54c6b6497930a4d45ac5bb26c4e23acfd9e87832e92dbf860d858fcdde

  • SSDEEP

    24576:VycxTiDDK8QZJnzgFQy+Yo/r9bnOjHoxyUvs5UXTvh4At+w4:wcx268QTUFF+7jKHoxt06XTvh4AUw

Malware Config

Extracted

Family

redline

Botnet

trush

C2

77.91.124.82:19071

Attributes
  • auth_value

    c13814867cde8193679cd0cad2d774be

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
rc4.i32

Targets

    • Target

      file.exe

    • Size

      1.3MB

    • MD5

      53593f2452e63d9f0fa67b9ee31e884b

    • SHA1

      a3f0cee94a8b2380881bdc28659c9c16e72d4039

    • SHA256

      f2d823dd2bca692c89a26b894349416fc5d32e3267b906c8666db0dd3db1c3ea

    • SHA512

      5e5bb1dee9b4a2b52e7326250b52324910adce15fc0cdfa4fce101cf81539f761ac7fd54c6b6497930a4d45ac5bb26c4e23acfd9e87832e92dbf860d858fcdde

    • SSDEEP

      24576:VycxTiDDK8QZJnzgFQy+Yo/r9bnOjHoxyUvs5UXTvh4At+w4:wcx268QTUFF+7jKHoxt06XTvh4AUw

    • Detects Healer an antivirus disabler dropper

    • Healer

      Healer an antivirus disabler dropper.

    • Modifies Windows Defender Real-time Protection settings

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner payload

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Windows security modification

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks