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General

  • Target

    285e97efc72084742f239389b28d31382dcd9496efc0cc129257e33826b31273

  • Size

    2.4MB

  • Sample

    240524-hj84zagg79

  • MD5

    fcf50151b62c80a071f6b9d7a31924e8

  • SHA1

    944155fa05b10404162aa7831a2e54b84f14da51

  • SHA256

    285e97efc72084742f239389b28d31382dcd9496efc0cc129257e33826b31273

  • SHA512

    eb3f725c16d46c5a0c28084d770efd6ae59a4f05f8d9bc09a42f7bf17279e6f0bfc343a7d04d0712f510c5d545962c2c8f01c9e0c75d571557e5de8dc83bef89

  • SSDEEP

    49152:jxIRJF1HL+VdX68kUeJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68detIuoITsdZ

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

      285e97efc72084742f239389b28d31382dcd9496efc0cc129257e33826b31273

    • Size

      2.4MB

    • MD5

      fcf50151b62c80a071f6b9d7a31924e8

    • SHA1

      944155fa05b10404162aa7831a2e54b84f14da51

    • SHA256

      285e97efc72084742f239389b28d31382dcd9496efc0cc129257e33826b31273

    • SHA512

      eb3f725c16d46c5a0c28084d770efd6ae59a4f05f8d9bc09a42f7bf17279e6f0bfc343a7d04d0712f510c5d545962c2c8f01c9e0c75d571557e5de8dc83bef89

    • SSDEEP

      49152:jxIRJF1HL+VdX68kUeJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68detIuoITsdZ

    • 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