General

  • Target

    7890a8b6fa3d22281d32700d088c9530c11a703d3dde1f559fde62fc091e92e7

  • Size

    1.9MB

  • Sample

    240527-pqzbnscb8s

  • MD5

    94499b1c20fda69aef65f87bfed21b54

  • SHA1

    a6a3c10af718b8d979c1ef492eb4ee0fb43702f8

  • SHA256

    7890a8b6fa3d22281d32700d088c9530c11a703d3dde1f559fde62fc091e92e7

  • SHA512

    f752224cb1d6f6c70c0ff89887b1bb6778f6cece01992968136a5b0a0b0c9c7db108457bef31636d1000550102589ce3f00617799fbd315a41b618eaf93acff6

  • SSDEEP

    49152:CdKfTn6vWJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnFtIuoITsdZ

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

      7890a8b6fa3d22281d32700d088c9530c11a703d3dde1f559fde62fc091e92e7

    • Size

      1.9MB

    • MD5

      94499b1c20fda69aef65f87bfed21b54

    • SHA1

      a6a3c10af718b8d979c1ef492eb4ee0fb43702f8

    • SHA256

      7890a8b6fa3d22281d32700d088c9530c11a703d3dde1f559fde62fc091e92e7

    • SHA512

      f752224cb1d6f6c70c0ff89887b1bb6778f6cece01992968136a5b0a0b0c9c7db108457bef31636d1000550102589ce3f00617799fbd315a41b618eaf93acff6

    • SSDEEP

      49152:CdKfTn6vWJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnFtIuoITsdZ

    • 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