Overview

overview

10

Static

static

10

AsyncClient.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    AsyncClient.exe

  • Size

    47KB

  • Sample

    230603-dm1jsafc57

  • MD5

    e19c28bd6aa2d7759a085da8ad49bfd0

  • SHA1

    e6f96d6385c324bac5c4fe5b3206c478cbb6b120

  • SHA256

    c1a9e3ae2f16b203ffd288d104f0c7023321628e496b1d631d50400fe276fa18

  • SHA512

    6d006d21b4d67b49aed841a8b3cd8daae2e882f304679c1fcc4a88955ba4f4ea78cf034795cf1fc24862d0cde087711971fc855da21fb0d508557ece9a95e438

  • SSDEEP

    768:iuyRNTAoZjRWUJs9bmo2qL1RzRVrHdPIQD/ZVGbijqzsAejqKRo0FBDZEx:iuyRNTAGo28aQD/Z4bij8szjhRbdEx

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

7.tcp.ngrok.io:21200

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    true

  • install_file

    svchost.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      AsyncClient.exe

    • Size

      47KB

    • MD5

      e19c28bd6aa2d7759a085da8ad49bfd0

    • SHA1

      e6f96d6385c324bac5c4fe5b3206c478cbb6b120

    • SHA256

      c1a9e3ae2f16b203ffd288d104f0c7023321628e496b1d631d50400fe276fa18

    • SHA512

      6d006d21b4d67b49aed841a8b3cd8daae2e882f304679c1fcc4a88955ba4f4ea78cf034795cf1fc24862d0cde087711971fc855da21fb0d508557ece9a95e438

    • SSDEEP

      768:iuyRNTAoZjRWUJs9bmo2qL1RzRVrHdPIQD/ZVGbijqzsAejqKRo0FBDZEx:iuyRNTAGo28aQD/Z4bij8szjhRbdEx

    Score
    10/10
    asyncratdefaultrat

    • AsyncRat

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

      ratasyncrat

    • Async RAT payload

      rat

    • Checks computer location settings

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

    • Executes dropped EXE

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Tasks