General

  • Target

    16c657e788d1b5f6ba16f1880ae3ffa2.exe

  • Size

    6.8MB

  • Sample

    240720-ztvsrswhrb

  • MD5

    16c657e788d1b5f6ba16f1880ae3ffa2

  • SHA1

    edeab1c565bb7860376221694cdb6ceeb0cf12ac

  • SHA256

    6eaf94adedafef8b385c51dfb63306d4424478ed3ad5e7a4508e5bfcc5248565

  • SHA512

    225ae023f64bc9bd9d52e0ba0edc2806eb5d43500a09c789733f17a813897f93598794581a16e0ea0812b79adf222e369b7c3b7c0cf0d52a6a6e2b3d9e5d4e0c

  • SSDEEP

    196608:YAFbheN/FJMIDJf0gsAGK5SEQROuAKfv/D:0/Fqyf0gsfNpAKL

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

mcehonline-48303.portmap.io:48303

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    true

  • install_file

    SearchIndexer.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      16c657e788d1b5f6ba16f1880ae3ffa2.exe

    • Size

      6.8MB

    • MD5

      16c657e788d1b5f6ba16f1880ae3ffa2

    • SHA1

      edeab1c565bb7860376221694cdb6ceeb0cf12ac

    • SHA256

      6eaf94adedafef8b385c51dfb63306d4424478ed3ad5e7a4508e5bfcc5248565

    • SHA512

      225ae023f64bc9bd9d52e0ba0edc2806eb5d43500a09c789733f17a813897f93598794581a16e0ea0812b79adf222e369b7c3b7c0cf0d52a6a6e2b3d9e5d4e0c

    • SSDEEP

      196608:YAFbheN/FJMIDJf0gsAGK5SEQROuAKfv/D:0/Fqyf0gsfNpAKL

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Drops file in Drivers directory

    • 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.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v15

Tasks