Resubmissions

21-09-2024 19:47

240921-yh1zzazdnb 10

21-09-2024 11:45

240921-nwxjlazhkg 10

General

  • Target

    start.bat

  • Size

    32B

  • Sample

    240921-yh1zzazdnb

  • MD5

    5cd7bf3dd7ff8f4911eb886521939db8

  • SHA1

    77345ee9e88961f2de36a96f587163d426b756d7

  • SHA256

    7d12120821c14efd4f991f7bc2b8664b28a5e7546b928bee68aff235959e9a9e

  • SHA512

    81242bf8f926bad7366011c37db53e57f317d1f60a7caa1c3c003fde9dc6d2f2257b54427b53f88b6066296fb3084a1620cff4c8372692575012e31fc1bdd596

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      start.bat

    • Size

      32B

    • MD5

      5cd7bf3dd7ff8f4911eb886521939db8

    • SHA1

      77345ee9e88961f2de36a96f587163d426b756d7

    • SHA256

      7d12120821c14efd4f991f7bc2b8664b28a5e7546b928bee68aff235959e9a9e

    • SHA512

      81242bf8f926bad7366011c37db53e57f317d1f60a7caa1c3c003fde9dc6d2f2257b54427b53f88b6066296fb3084a1620cff4c8372692575012e31fc1bdd596

    • AsyncRat

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

    • StormKitty

      StormKitty is an open source info stealer written in C#.

    • StormKitty payload

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Looks up geolocation information via web service

      Uses a legitimate geolocation service to find the infected system's geolocation info.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks