General

  • Target

    7382e2d12a0f1b6cdb9ea2ec8f4277c19c2480b3c973387de46f583cec8dbe77

  • Size

    1.9MB

  • Sample

    240527-w5ezxadd2s

  • MD5

    ab0f980e39b9d1702c44fcaa36c2b228

  • SHA1

    5ba505a1415e8cf30fa6e04a392a5fee6fd4b1e9

  • SHA256

    7382e2d12a0f1b6cdb9ea2ec8f4277c19c2480b3c973387de46f583cec8dbe77

  • SHA512

    af17ccad2274d53fb05f5a4e5585b2fa273b0a7191faa7f7732373cc93a51fa3b2d0935e4807a465a2702046bac2e4c06d889aef3a173aaaa579e3519db0b5fe

  • SSDEEP

    49152:CdKfTn6vGJtTF+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

      7382e2d12a0f1b6cdb9ea2ec8f4277c19c2480b3c973387de46f583cec8dbe77

    • Size

      1.9MB

    • MD5

      ab0f980e39b9d1702c44fcaa36c2b228

    • SHA1

      5ba505a1415e8cf30fa6e04a392a5fee6fd4b1e9

    • SHA256

      7382e2d12a0f1b6cdb9ea2ec8f4277c19c2480b3c973387de46f583cec8dbe77

    • SHA512

      af17ccad2274d53fb05f5a4e5585b2fa273b0a7191faa7f7732373cc93a51fa3b2d0935e4807a465a2702046bac2e4c06d889aef3a173aaaa579e3519db0b5fe

    • SSDEEP

      49152:CdKfTn6vGJtTF+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