General

  • Target

    a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe

  • Size

    569KB

  • Sample

    241123-1tcsmaylcz

  • MD5

    baafb44a3a3f70dd1e009c04b9c88297

  • SHA1

    25b542946dd20f80773387a44352696f58f76cba

  • SHA256

    a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402

  • SHA512

    1ebd9f5d3515a973a4c45cfbbdc3fb227f457d2fbba03873eefc397cf0da72a29a12887466b3e2795a90b2a3b8c95024319324f075275421f39eac8b49ed0f11

  • SSDEEP

    12288:f20IpfjSt64LnnhlgVRZ7K/Tk7SP0q6qKLnHEbpt26XE85RSKoTx:fPemtrLnY7ETMi07ZCU

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

194.5.97.229:1195

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe

    • Size

      569KB

    • MD5

      baafb44a3a3f70dd1e009c04b9c88297

    • SHA1

      25b542946dd20f80773387a44352696f58f76cba

    • SHA256

      a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402

    • SHA512

      1ebd9f5d3515a973a4c45cfbbdc3fb227f457d2fbba03873eefc397cf0da72a29a12887466b3e2795a90b2a3b8c95024319324f075275421f39eac8b49ed0f11

    • SSDEEP

      12288:f20IpfjSt64LnnhlgVRZ7K/Tk7SP0q6qKLnHEbpt26XE85RSKoTx:fPemtrLnY7ETMi07ZCU

    • AsyncRat

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

    • Asyncrat family

    • Looks for VirtualBox Guest Additions in registry

    • Command and Scripting Interpreter: PowerShell

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

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks