Overview

overview

10

Static

static

1

service_updated.exe

windows7-x64

3

service_updated.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    service_updated.exe
  • Size 26KB
  • Sample230315-avjdpace3w
  • SHA256 f2ade3ae8bf5ba063e0c5911c2996bafa09de659b23bbd3014747e12a378724e
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
asyncratdefaultevasionrat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 1.0.7

Botnet

  • Default

Mutex

  • DcRatMutex_qwqdanchun

Attributes
  • delay

    10

  • install

    true

  • install_file

    csrss.exe

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/3Z9zi18j

aes.plain

Targets

    • Target
      service_updated.exe
    • Size 26KB
    • SHA256 f2ade3ae8bf5ba063e0c5911c2996bafa09de659b23bbd3014747e12a378724e
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    asyncratdefaultevasionrat

    • AsyncRat

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

      ratasyncrat

    • Async RAT payload

      rat

    • Downloads MZ/PE file

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • 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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks