Resubmissions

13-01-2025 00:21

250113-anj2mswnfw 3

09-01-2025 07:24

250109-h8ftqasrd1 10

General

  • Target

    Stealerium.zip

  • Size

    5.9MB

  • Sample

    250109-h8ftqasrd1

  • MD5

    e2e609d8870d6257945230e08ca4f62f

  • SHA1

    338f787fc2eb8d8a33b7fd0e73f247743c497b9d

  • SHA256

    848d8ab365cfa9c087c80b87538a2c86921a16e886f0b3d32405cbe69f4d7f53

  • SHA512

    d10daa0212337d10b7ede25e1238dc5f77e93a0b9eb048a4a80c4bd1dc42af2dfdf7e0e8951486db6f738980e4a13802243a3c60696007104ef28f7f58002183

  • SSDEEP

    98304:nR9fzGqzRjbT+yYTNWdDAkJNam4FFYGzYqLeB50CcOq0C2xJ9K8YR0fXgnGagsmx:PfzG6jbT+FUiWNaDFFYGEqLeBqCcR0oi

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

51.89.44.68:8848

Mutex

etb3t1tr5n

Attributes
  • delay

    1

  • install

    true

  • install_file

    svchost.exe

  • install_folder

    %Temp%

aes.plain

Extracted

Family

gurcu

C2

https://api.telegram.org/bot6589077846:AAGHOGKjUc-Wf835m3GyqXX53Xc8gVmf5yk/getM

https://api.telegram.org/bot6589077846:AAGHOGKjUc-Wf835m3GyqXX53Xc8gVmf5yk/sendMessage?chat_id=6019303946

Targets

    • Target

      Stealerium.zip

    • Size

      5.9MB

    • MD5

      e2e609d8870d6257945230e08ca4f62f

    • SHA1

      338f787fc2eb8d8a33b7fd0e73f247743c497b9d

    • SHA256

      848d8ab365cfa9c087c80b87538a2c86921a16e886f0b3d32405cbe69f4d7f53

    • SHA512

      d10daa0212337d10b7ede25e1238dc5f77e93a0b9eb048a4a80c4bd1dc42af2dfdf7e0e8951486db6f738980e4a13802243a3c60696007104ef28f7f58002183

    • SSDEEP

      98304:nR9fzGqzRjbT+yYTNWdDAkJNam4FFYGzYqLeB50CcOq0C2xJ9K8YR0fXgnGagsmx:PfzG6jbT+FUiWNaDFFYGEqLeBqCcR0oi

    • AsyncRat

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

    • Asyncrat family

    • Gurcu family

    • Gurcu, WhiteSnake

      Gurcu aka WhiteSnake is a malware stealer written in C#.

    • Async RAT payload

    • Downloads MZ/PE file

    • A potential corporate email address has been identified in the URL: =@L

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • 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.

    • Mark of the Web detected: This indicates that the page was originally saved or cloned.

MITRE ATT&CK Enterprise v15

Tasks