General

  • Target

    cb46ca8c7e27b18f0b63b8e9d7706eac5ed74b017c7ea1e949a3112a6120418d

  • Size

    1.9MB

  • Sample

    240527-k4pl6sff29

  • MD5

    d0317be2645f5901b2c5ecad7101a3fb

  • SHA1

    bee2fa13e3d5e53058f202f2c03f212d1bf0da5d

  • SHA256

    cb46ca8c7e27b18f0b63b8e9d7706eac5ed74b017c7ea1e949a3112a6120418d

  • SHA512

    87762489021e6956c40e61f1fbf979e519dc032453f73821e2b4dbec433fa0c8d6a6485aa99a786b8219444caa271adcdd8e986c9604f5b7943c0dbca70c267f

  • SSDEEP

    49152:CdKfTn6vuJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnttIuoITsdZ

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

      cb46ca8c7e27b18f0b63b8e9d7706eac5ed74b017c7ea1e949a3112a6120418d

    • Size

      1.9MB

    • MD5

      d0317be2645f5901b2c5ecad7101a3fb

    • SHA1

      bee2fa13e3d5e53058f202f2c03f212d1bf0da5d

    • SHA256

      cb46ca8c7e27b18f0b63b8e9d7706eac5ed74b017c7ea1e949a3112a6120418d

    • SHA512

      87762489021e6956c40e61f1fbf979e519dc032453f73821e2b4dbec433fa0c8d6a6485aa99a786b8219444caa271adcdd8e986c9604f5b7943c0dbca70c267f

    • SSDEEP

      49152:CdKfTn6vuJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnttIuoITsdZ

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • 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

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Tasks