General

  • Target

    0606aa0e1c7f3cafb66bf5403f512ee2784f31f1b4f747a5f577d0bd7a284204

  • Size

    2.0MB

  • Sample

    240525-dqx8tsce8v

  • MD5

    d4fbd6756d1ce2f1c8658416f7743fb5

  • SHA1

    f4b468ee20c10febc7b50b58fe7760a8e198ce08

  • SHA256

    0606aa0e1c7f3cafb66bf5403f512ee2784f31f1b4f747a5f577d0bd7a284204

  • SHA512

    8d6d6f2275d13022e8f1d00715130172643afdcefbca9dab4869026cc1db66488d986877d278b73bd17ce82d41ccd6bab64e7a982886a55c57e17285e4659609

  • 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

      0606aa0e1c7f3cafb66bf5403f512ee2784f31f1b4f747a5f577d0bd7a284204

    • Size

      2.0MB

    • MD5

      d4fbd6756d1ce2f1c8658416f7743fb5

    • SHA1

      f4b468ee20c10febc7b50b58fe7760a8e198ce08

    • SHA256

      0606aa0e1c7f3cafb66bf5403f512ee2784f31f1b4f747a5f577d0bd7a284204

    • SHA512

      8d6d6f2275d13022e8f1d00715130172643afdcefbca9dab4869026cc1db66488d986877d278b73bd17ce82d41ccd6bab64e7a982886a55c57e17285e4659609

    • 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 Matrix ATT&CK v13

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Tasks