General

  • Target

    4X_Tweaker.zip

  • Size

    1.1MB

  • Sample

    240529-cwtxxsff97

  • MD5

    f8ae08b86ee9ab5b5dd6420eeb9a7347

  • SHA1

    369f02973c62aff9c75bc9944167ba9bc8daeda7

  • SHA256

    113ebdddff838d79baf521ff514882a746d23ae2a3c49ca3851e0a11933b485f

  • SHA512

    f7ad90b4467bff6bf284df07e34f0f5f185c1100ac5821ca057d47ea318254bfcc806f062445f16298ef3c43fb947cba9e77a60bd0613a52b24f12698e8368f2

  • SSDEEP

    24576:QKcj0IbprYBPCOAMdjJfMZl2+Ead206nvgl5eQ4txhW:Qj0QpmCOhtCn2D0644x4

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

bit-keeping.gl.at.ply.gg:4444

bit-keeping.gl.at.ply.gg:49417

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      4X Tweaker/4x Tweaker.bat

    • Size

      1.5MB

    • MD5

      5b956910d7d28f6ee2ccb59d4c7b402f

    • SHA1

      e99a814ba0a8824a2bb1625b4e2cb0aa828d26e1

    • SHA256

      52aac553901b56007d9b40870447423fef70802593722eebd3a7326635074aaa

    • SHA512

      1967ce3eb6344695012c1ebb3c78a2a86396c900783907b7f383bb60a40e622ce52af6b813d3cf17686edae560da6d61462fb1d5f7446114ab9a1c9e61e3f635

    • SSDEEP

      24576:f69MXQh3D4FnZFRiMf4lPGj8rDm2Wum/j2EtY5ZYZu9C0AzBVG3e5Ql2jumGP:fwTSh3QG+Y9tNjQ

    • AsyncRat

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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks