General

  • Target

    746a424ae1faf5531947ebf990a33001b9f37f599783b30b6d84005618665368

  • Size

    2.0MB

  • Sample

    240525-nat7caed21

  • MD5

    1c10bee57799090db537627b10ff4d84

  • SHA1

    e034ce73b905c61830e79e3a78addc672212416c

  • SHA256

    746a424ae1faf5531947ebf990a33001b9f37f599783b30b6d84005618665368

  • SHA512

    9ff2db1497f4d3819275c4c35a73b9e35d2ec541c5200cb2608fc7d34584646baa739fe862ad484a4f62c3c720b3a0261e3f87d93518fd7fca6361d71bf5214b

  • SSDEEP

    49152:s4K3x1vUmJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18mtIuoITsdZ

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

      746a424ae1faf5531947ebf990a33001b9f37f599783b30b6d84005618665368

    • Size

      2.0MB

    • MD5

      1c10bee57799090db537627b10ff4d84

    • SHA1

      e034ce73b905c61830e79e3a78addc672212416c

    • SHA256

      746a424ae1faf5531947ebf990a33001b9f37f599783b30b6d84005618665368

    • SHA512

      9ff2db1497f4d3819275c4c35a73b9e35d2ec541c5200cb2608fc7d34584646baa739fe862ad484a4f62c3c720b3a0261e3f87d93518fd7fca6361d71bf5214b

    • SSDEEP

      49152:s4K3x1vUmJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18mtIuoITsdZ

    • 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 Enterprise v15

Tasks