General

  • Target

    cb9265a42859a3947c548adb04a317601616db0786c81ccde0c975df313cf5ea

  • Size

    934KB

  • Sample

    230924-cejevsbg3x

  • MD5

    a5a81d2544e3db5c621a6eaa60d388a0

  • SHA1

    195479b2567c34363a8c9f2c92f329904b7c4f64

  • SHA256

    cb9265a42859a3947c548adb04a317601616db0786c81ccde0c975df313cf5ea

  • SHA512

    1e2707ff684d3b2d7587d839d593faa88b68f167aa9405fd464dfa62cebb90040c343f2dc16458e21300f96139e0119c9500c709e49c3d1bf5805d3c9cac49ac

  • SSDEEP

    24576:3yk3CSsrtXH/Bp/a+g8G1zEMAlHPnILyMM7WSWf:Ckf+tXp9g8G1+HPMM7W

Malware Config

Extracted

Family

redline

Botnet

nanya

C2

77.91.124.82:19071

Attributes
  • auth_value

    640aa5afe54f566d8795f0dc723f8b52

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
rc4.i32

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Targets

    • Target

      cb9265a42859a3947c548adb04a317601616db0786c81ccde0c975df313cf5ea

    • Size

      934KB

    • MD5

      a5a81d2544e3db5c621a6eaa60d388a0

    • SHA1

      195479b2567c34363a8c9f2c92f329904b7c4f64

    • SHA256

      cb9265a42859a3947c548adb04a317601616db0786c81ccde0c975df313cf5ea

    • SHA512

      1e2707ff684d3b2d7587d839d593faa88b68f167aa9405fd464dfa62cebb90040c343f2dc16458e21300f96139e0119c9500c709e49c3d1bf5805d3c9cac49ac

    • SSDEEP

      24576:3yk3CSsrtXH/Bp/a+g8G1zEMAlHPnILyMM7WSWf:Ckf+tXp9g8G1+HPMM7W

    • Detects Healer an antivirus disabler dropper

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • 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

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Uses the VBS compiler for execution

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks