General

  • Target

    a51dfb2e0e0d2326831abc4a7ad705d418baa483b23e8183cc5645de6c5d7368

  • Size

    1.9MB

  • Sample

    240527-mw68cshg59

  • MD5

    5cd1f0d11a8914f180826856dc594001

  • SHA1

    f5374089f51e952b88dce48d17e88996c934d7a4

  • SHA256

    a51dfb2e0e0d2326831abc4a7ad705d418baa483b23e8183cc5645de6c5d7368

  • SHA512

    d0fadec6862c328e0051fced987ab4814bb7b7a8941eb0abc41de7a5d7fa36b76ec888797d7edd66d23f38691798cd885df9bf60af40187d2ce03bcfa049301b

  • SSDEEP

    49152:CdKfTn6vmJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnltIuoITsdZ

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

      a51dfb2e0e0d2326831abc4a7ad705d418baa483b23e8183cc5645de6c5d7368

    • Size

      1.9MB

    • MD5

      5cd1f0d11a8914f180826856dc594001

    • SHA1

      f5374089f51e952b88dce48d17e88996c934d7a4

    • SHA256

      a51dfb2e0e0d2326831abc4a7ad705d418baa483b23e8183cc5645de6c5d7368

    • SHA512

      d0fadec6862c328e0051fced987ab4814bb7b7a8941eb0abc41de7a5d7fa36b76ec888797d7edd66d23f38691798cd885df9bf60af40187d2ce03bcfa049301b

    • SSDEEP

      49152:CdKfTn6vmJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnltIuoITsdZ

    • 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