General

  • Target

    f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2

  • Size

    2.0MB

  • Sample

    240525-vhsrtabb8v

  • MD5

    299cc553b1d53f6be0ba652d50de8718

  • SHA1

    cb6ca0561f70958051e3c1dbf15150d3f1b224d5

  • SHA256

    f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2

  • SHA512

    a4e164c9628bc1c1e7eb3eea71e387a69d6a77f71d99addaa78cee9dad72e047e96ecb643be5548f8924cc50fb57d8f919a5811bf2ba7d2a9af2f44c18b9d874

  • SSDEEP

    49152:s4K3x1vUCJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18CtIuoITsdZ

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

      f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2

    • Size

      2.0MB

    • MD5

      299cc553b1d53f6be0ba652d50de8718

    • SHA1

      cb6ca0561f70958051e3c1dbf15150d3f1b224d5

    • SHA256

      f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2

    • SHA512

      a4e164c9628bc1c1e7eb3eea71e387a69d6a77f71d99addaa78cee9dad72e047e96ecb643be5548f8924cc50fb57d8f919a5811bf2ba7d2a9af2f44c18b9d874

    • SSDEEP

      49152:s4K3x1vUCJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18CtIuoITsdZ

    • 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