General

  • Target

    d584567459810485f61fca3f3ca22b56de9a14aeb3ef3b40de6e6fd301db8291

  • Size

    2.0MB

  • Sample

    240525-j7j1esbd6t

  • MD5

    9aec867a5aaabd079650dc3613ca2d15

  • SHA1

    b5b010e3822cb88f8fefd29170da38e56d989d1d

  • SHA256

    d584567459810485f61fca3f3ca22b56de9a14aeb3ef3b40de6e6fd301db8291

  • SHA512

    816b280b81a1e4a81bec0388b9cd5339391dd7e3e543af6a2e0f479186c7855e40801ba00eba1d23f2da29a3882566c957949197bb59c7df1ec6f69734c9cbbb

  • SSDEEP

    49152:s4K3x1vUSJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18StIuoITsdZ

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

      d584567459810485f61fca3f3ca22b56de9a14aeb3ef3b40de6e6fd301db8291

    • Size

      2.0MB

    • MD5

      9aec867a5aaabd079650dc3613ca2d15

    • SHA1

      b5b010e3822cb88f8fefd29170da38e56d989d1d

    • SHA256

      d584567459810485f61fca3f3ca22b56de9a14aeb3ef3b40de6e6fd301db8291

    • SHA512

      816b280b81a1e4a81bec0388b9cd5339391dd7e3e543af6a2e0f479186c7855e40801ba00eba1d23f2da29a3882566c957949197bb59c7df1ec6f69734c9cbbb

    • SSDEEP

      49152:s4K3x1vUSJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18StIuoITsdZ

    • 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