General

  • Target

    e0aed276dce5577a467475eda82b4f35bd32175317175aca4dbc6f67afd6f3ce

  • Size

    2.0MB

  • Sample

    240526-3s93vage5y

  • MD5

    c39614b1875d7221569b8b7dca828026

  • SHA1

    31823c1835e70306c1de9de4611206e15cbc2cf4

  • SHA256

    e0aed276dce5577a467475eda82b4f35bd32175317175aca4dbc6f67afd6f3ce

  • SHA512

    e5ef3a578d2856c98e4531d1dfd24be9f05f7a02a5522761d590954ab5df41d7ce9c5c69dc63908a80040c6d626d81c20f941647e8fc635714463a0ddf792fc3

  • SSDEEP

    49152:OePpQExJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQExtIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199689717899

https://t.me/copterwin

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target

      e0aed276dce5577a467475eda82b4f35bd32175317175aca4dbc6f67afd6f3ce

    • Size

      2.0MB

    • MD5

      c39614b1875d7221569b8b7dca828026

    • SHA1

      31823c1835e70306c1de9de4611206e15cbc2cf4

    • SHA256

      e0aed276dce5577a467475eda82b4f35bd32175317175aca4dbc6f67afd6f3ce

    • SHA512

      e5ef3a578d2856c98e4531d1dfd24be9f05f7a02a5522761d590954ab5df41d7ce9c5c69dc63908a80040c6d626d81c20f941647e8fc635714463a0ddf792fc3

    • SSDEEP

      49152:OePpQExJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQExtIuoITsdZ

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

4
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

4
T1005

Tasks