Overview

overview

10

Static

static

fddaeygXLjAsync.js

windows7_x64

10

fddaeygXLjAsync.js

windows10-2004_x64

10

Sharing

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General

  • Target

    fddaeygXLjAsync.js

  • Size

    119KB

  • Sample

    220628-hkrw3sheb8

  • MD5

    542b756dd96091a329ef2d11d08a6b3e

  • SHA1

    bebe6cb01c61932081119bcd8c4c35d4c75eabe8

  • SHA256

    7c8b340626b6330e1a94c98a97b4de4778e996e1f65c4d7cf81f7c1605f66e7d

  • SHA512

    ebf79ee53d2c4edeb16bf842e11b91c45717a778de4334305d7276b7dd30718dfef2841a365e5ef8c86d911be7247187b40e2529568d080e3879d33d7342b0e6

Score
10/10
asyncratvjw0rmdefaultpersistenceratsuricatatrojanworm

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

104.168.33.53:6606

104.168.33.53:7707

104.168.33.53:8808
Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      fddaeygXLjAsync.js

    • Size

      119KB

    • MD5

      542b756dd96091a329ef2d11d08a6b3e

    • SHA1

      bebe6cb01c61932081119bcd8c4c35d4c75eabe8

    • SHA256

      7c8b340626b6330e1a94c98a97b4de4778e996e1f65c4d7cf81f7c1605f66e7d

    • SHA512

      ebf79ee53d2c4edeb16bf842e11b91c45717a778de4334305d7276b7dd30718dfef2841a365e5ef8c86d911be7247187b40e2529568d080e3879d33d7342b0e6

    Score
    10/10
    asyncratvjw0rmdefaultpersistenceratsuricatatrojanworm

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

      ratasyncrat

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

      trojanwormvjw0rm

    • suricata: ET MALWARE Generic AsyncRAT Style SSL Cert

      suricata: ET MALWARE Generic AsyncRAT Style SSL Cert

      suricata

    • suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)

      suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)

      suricata

    • Async RAT payload

      rat

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Checks computer location settings

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

    • Drops startup file

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks