General

  • Target

    457e19f36150413afa94982952d2741c70174dd404791e779e78d6528f1ef68e

  • Size

    2.0MB

  • Sample

    240525-jfh9taag34

  • MD5

    6a5e8ba157bcda08b3b3e1b5ec57ce0d

  • SHA1

    1cdc454db3b45c7e8dfdf153609177970e7b419b

  • SHA256

    457e19f36150413afa94982952d2741c70174dd404791e779e78d6528f1ef68e

  • SHA512

    eb7f0f7fcb528b20b783eed650ee42a7da34f968147bfb7ee1130b42cb12471e7b94950758fceb5da004e1a710d537e38ff55ee3036f86fea106f3cd2e4b1ff4

  • 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

      457e19f36150413afa94982952d2741c70174dd404791e779e78d6528f1ef68e

    • Size

      2.0MB

    • MD5

      6a5e8ba157bcda08b3b3e1b5ec57ce0d

    • SHA1

      1cdc454db3b45c7e8dfdf153609177970e7b419b

    • SHA256

      457e19f36150413afa94982952d2741c70174dd404791e779e78d6528f1ef68e

    • SHA512

      eb7f0f7fcb528b20b783eed650ee42a7da34f968147bfb7ee1130b42cb12471e7b94950758fceb5da004e1a710d537e38ff55ee3036f86fea106f3cd2e4b1ff4

    • 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