General

  • Target

    fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6

  • Size

    2.0MB

  • Sample

    240525-svrdeahd95

  • MD5

    ae4fa8e0a9ffc588c39ccd06b44e394f

  • SHA1

    c6ddb615d962cfc7dfd4a2e1429b821888091c3b

  • SHA256

    fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6

  • SHA512

    9409251967064ba368471af85f8aa48322359650e3b2f42260d44043480de7fe310695ed718e853fdeb5c46a95fbb92490e333a739f86769933877d46b2a7797

  • SSDEEP

    49152:s4K3x1vUeJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18etIuoITsdZ

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

      fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6

    • Size

      2.0MB

    • MD5

      ae4fa8e0a9ffc588c39ccd06b44e394f

    • SHA1

      c6ddb615d962cfc7dfd4a2e1429b821888091c3b

    • SHA256

      fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6

    • SHA512

      9409251967064ba368471af85f8aa48322359650e3b2f42260d44043480de7fe310695ed718e853fdeb5c46a95fbb92490e333a739f86769933877d46b2a7797

    • SSDEEP

      49152:s4K3x1vUeJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18etIuoITsdZ

    • 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