General

  • Target

    28b50b511d4cc2e46d9c22122ac11baea2b71eeb673fa358809b47244afa992e.exe

  • Size

    2.4MB

  • Sample

    240524-matedade69

  • MD5

    2c20cbf4b68f6a293fed6564f132054e

  • SHA1

    9532526b19482c7527439ddd71f652acca2c0e96

  • SHA256

    28b50b511d4cc2e46d9c22122ac11baea2b71eeb673fa358809b47244afa992e

  • SHA512

    768b5d771f5db7a6e8e523a3037f1a052061c9090a9b5a3bc9180c9d90b8cf8262e166a0dc1b87ec76920a1b47c2f6eae9ef2c88af4d10b6a9ffc5dfe386a862

  • SSDEEP

    49152:jxIRJF1HL+VdX68kUqJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dqtIuoITsdZ

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

      28b50b511d4cc2e46d9c22122ac11baea2b71eeb673fa358809b47244afa992e.exe

    • Size

      2.4MB

    • MD5

      2c20cbf4b68f6a293fed6564f132054e

    • SHA1

      9532526b19482c7527439ddd71f652acca2c0e96

    • SHA256

      28b50b511d4cc2e46d9c22122ac11baea2b71eeb673fa358809b47244afa992e

    • SHA512

      768b5d771f5db7a6e8e523a3037f1a052061c9090a9b5a3bc9180c9d90b8cf8262e166a0dc1b87ec76920a1b47c2f6eae9ef2c88af4d10b6a9ffc5dfe386a862

    • SSDEEP

      49152:jxIRJF1HL+VdX68kUqJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dqtIuoITsdZ

    • 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

    • Loads dropped DLL

    • 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 Enterprise v15

Tasks