General

  • Target

    e335e1c2735e9b39bc31546ea5c861e06fa818b4eced858bb9fed79d852113db

  • Size

    2.0MB

  • Sample

    240524-wlnspsea8x

  • MD5

    2e24a2468b5560f5744c34dcfdbaa6db

  • SHA1

    b90b77664b3a0ce0fc55fd8bf5f2f47b998b4844

  • SHA256

    e335e1c2735e9b39bc31546ea5c861e06fa818b4eced858bb9fed79d852113db

  • SHA512

    ee731fe8fd6713d1ed81e951770719a3a3319aaec7205197597a338e7736333caeda1ea98e42a9674e78ecae5b4a26e6f36716c8b6c1e0dc50082126b1e5ba8e

  • SSDEEP

    49152:s4K3x1vUmJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18mtIuoITsdZ

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

      e335e1c2735e9b39bc31546ea5c861e06fa818b4eced858bb9fed79d852113db

    • Size

      2.0MB

    • MD5

      2e24a2468b5560f5744c34dcfdbaa6db

    • SHA1

      b90b77664b3a0ce0fc55fd8bf5f2f47b998b4844

    • SHA256

      e335e1c2735e9b39bc31546ea5c861e06fa818b4eced858bb9fed79d852113db

    • SHA512

      ee731fe8fd6713d1ed81e951770719a3a3319aaec7205197597a338e7736333caeda1ea98e42a9674e78ecae5b4a26e6f36716c8b6c1e0dc50082126b1e5ba8e

    • SSDEEP

      49152:s4K3x1vUmJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18mtIuoITsdZ

    • 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