General

  • Target

    36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda

  • Size

    2.0MB

  • Sample

    240526-tzee3scf8x

  • MD5

    5dd0c0d932410116b293e85fc799566e

  • SHA1

    76396c94ed285a9323c477475b75cb7b5881d446

  • SHA256

    36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda

  • SHA512

    643a0fc0f76957fcf0d3b5e434ca8928701ca500c944d6ae8f3db6700ec2026352115e4a52dea1c92ee11daf3993fd653ee9ff636c8dbf2e60266a29d5a3c52e

  • SSDEEP

    49152:OePpQElJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEltIuoITsdZ

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

      36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda

    • Size

      2.0MB

    • MD5

      5dd0c0d932410116b293e85fc799566e

    • SHA1

      76396c94ed285a9323c477475b75cb7b5881d446

    • SHA256

      36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda

    • SHA512

      643a0fc0f76957fcf0d3b5e434ca8928701ca500c944d6ae8f3db6700ec2026352115e4a52dea1c92ee11daf3993fd653ee9ff636c8dbf2e60266a29d5a3c52e

    • SSDEEP

      49152:OePpQElJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEltIuoITsdZ

    • 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