Overview

overview

10

Static

static

TWEASOPKSA...DF.vbs

windows7-x64

10

TWEASOPKSA...DF.vbs

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    TWEASOPKSA_002_PDF.vbs

  • Size

    238KB

  • Sample

    220922-vtwylscae2

  • MD5

    b757fcf7a0df8528178bf586a3d718ae

  • SHA1

    65394437dbbc8405b0a4b5c5e87bd1668f644d09

  • SHA256

    84f101fd1efbadf4f287849ae8dc6f09729f1741143b7465a4233599b9865624

  • SHA512

    908a583130bec368503d3a5ca62b7432d45910bc9adabd96da5310e38d5691a2c9bb9f71114c8a1270bf133d5324dec0afa819817fc85768d6c5cecaa9340119

  • SSDEEP

    48:sK0mjzlXJj5NzzBWsoMtssbs0Qs+PM/sq6OkZ9s3XEHDzzAA:sKDF9n0JMtswebE0DAsDoA

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://contadoreshbc.com/dll_startup

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

ehjay2022.duckdns.org:6739

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      TWEASOPKSA_002_PDF.vbs

    • Size

      238KB

    • MD5

      b757fcf7a0df8528178bf586a3d718ae

    • SHA1

      65394437dbbc8405b0a4b5c5e87bd1668f644d09

    • SHA256

      84f101fd1efbadf4f287849ae8dc6f09729f1741143b7465a4233599b9865624

    • SHA512

      908a583130bec368503d3a5ca62b7432d45910bc9adabd96da5310e38d5691a2c9bb9f71114c8a1270bf133d5324dec0afa819817fc85768d6c5cecaa9340119

    • SSDEEP

      48:sK0mjzlXJj5NzzBWsoMtssbs0Qs+PM/sq6OkZ9s3XEHDzzAA:sKDF9n0JMtswebE0DAsDoA

    Score
    10/10
    asyncratdefaultrat

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

      ratasyncrat

    • Async RAT payload

      rat

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Drops startup file

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks