General

  • Target

    45067e7d5707b5d56d33ce62ae7f4bcf440b681db070ab275ab364e08b29817e

  • Size

    1.9MB

  • Sample

    240528-gsmrnagg6y

  • MD5

    83a17c2534c4886111948c58a0e8bb10

  • SHA1

    fdb0e16af341b33b2c1cbe39b05f9bf67a716e00

  • SHA256

    45067e7d5707b5d56d33ce62ae7f4bcf440b681db070ab275ab364e08b29817e

  • SHA512

    d1aeb2833e7829f43c626299dd769e492d39541c2eb2dc5ac3f8120a5b5c5f64f6b7c2e5b01f8a279874cd18ef4864b12cd86b80f373baa630716385783cc674

  • SSDEEP

    49152:CdKfTn6vOJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnNtIuoITsdZ

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

      45067e7d5707b5d56d33ce62ae7f4bcf440b681db070ab275ab364e08b29817e

    • Size

      1.9MB

    • MD5

      83a17c2534c4886111948c58a0e8bb10

    • SHA1

      fdb0e16af341b33b2c1cbe39b05f9bf67a716e00

    • SHA256

      45067e7d5707b5d56d33ce62ae7f4bcf440b681db070ab275ab364e08b29817e

    • SHA512

      d1aeb2833e7829f43c626299dd769e492d39541c2eb2dc5ac3f8120a5b5c5f64f6b7c2e5b01f8a279874cd18ef4864b12cd86b80f373baa630716385783cc674

    • SSDEEP

      49152:CdKfTn6vOJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnNtIuoITsdZ

    • 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