General

  • Target

    709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc.exe

  • Size

    2.4MB

  • Sample

    240524-lktbpacf6w

  • MD5

    43c78cc0db1f316dd7a8aa93519d295b

  • SHA1

    100b7b134fe39fc96a1e5ee73a6e054ec2e3d168

  • SHA256

    709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc

  • SHA512

    1041e7f0364debc607ee02e8c6cbbe11ad52d6278910c95293adda74b0576275d70cc5a332d77c76f280b8ef0086f36a69226852fca49587a94339e1b986d525

  • SSDEEP

    49152:jxIRJF1HL+VdX68kUyJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dytIuoITsdZ

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

      709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc.exe

    • Size

      2.4MB

    • MD5

      43c78cc0db1f316dd7a8aa93519d295b

    • SHA1

      100b7b134fe39fc96a1e5ee73a6e054ec2e3d168

    • SHA256

      709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc

    • SHA512

      1041e7f0364debc607ee02e8c6cbbe11ad52d6278910c95293adda74b0576275d70cc5a332d77c76f280b8ef0086f36a69226852fca49587a94339e1b986d525

    • SSDEEP

      49152:jxIRJF1HL+VdX68kUyJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dytIuoITsdZ

    • 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 data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • 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