General

  • Target

    dc04a3e5072571966aa9bb192cb10ffb34486b1d01cfd9a611fc57f2af1f7cfc

  • Size

    2.0MB

  • Sample

    240524-zdg7qsaf24

  • MD5

    6e03d210dc353db34d87f0196e98eee8

  • SHA1

    a0c9d720353447846f5aa0bae24e976ac3ea599d

  • SHA256

    dc04a3e5072571966aa9bb192cb10ffb34486b1d01cfd9a611fc57f2af1f7cfc

  • SHA512

    939cc067fe45dcc19d3e23ab5c7ba52d199a6b6672262b3e420910523cc94c23a2c0f4914cf4b4c3426d373de75ad2f4b7b015f5bf5185a25e1f1124af2796d8

  • SSDEEP

    49152:s4K3x1vUWJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18WtIuoITsdZ

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

      dc04a3e5072571966aa9bb192cb10ffb34486b1d01cfd9a611fc57f2af1f7cfc

    • Size

      2.0MB

    • MD5

      6e03d210dc353db34d87f0196e98eee8

    • SHA1

      a0c9d720353447846f5aa0bae24e976ac3ea599d

    • SHA256

      dc04a3e5072571966aa9bb192cb10ffb34486b1d01cfd9a611fc57f2af1f7cfc

    • SHA512

      939cc067fe45dcc19d3e23ab5c7ba52d199a6b6672262b3e420910523cc94c23a2c0f4914cf4b4c3426d373de75ad2f4b7b015f5bf5185a25e1f1124af2796d8

    • SSDEEP

      49152:s4K3x1vUWJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18WtIuoITsdZ

    • 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