General

  • Target

    037c0110decee7a0dc611a247a34bd3f94d1875f27b7960e55a89016847f5f5d

  • Size

    2.0MB

  • Sample

    240526-hj7k5sbc69

  • MD5

    715eec5ea44c41e2b0e8a98f41423ebe

  • SHA1

    b92110edc0c66f78cf844636c5792754bb90b310

  • SHA256

    037c0110decee7a0dc611a247a34bd3f94d1875f27b7960e55a89016847f5f5d

  • SHA512

    84e567d1f3ffb1c7de54b3d38c8fd3e62c856ab2c80971581dc58c651412ed69d108693718172af5b79deb9bc87b5d4b06ee7e68954bcdffe7b3e0e12e742434

  • SSDEEP

    49152:s4K3x1vU+JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18+tIuoITsdZ

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

      037c0110decee7a0dc611a247a34bd3f94d1875f27b7960e55a89016847f5f5d

    • Size

      2.0MB

    • MD5

      715eec5ea44c41e2b0e8a98f41423ebe

    • SHA1

      b92110edc0c66f78cf844636c5792754bb90b310

    • SHA256

      037c0110decee7a0dc611a247a34bd3f94d1875f27b7960e55a89016847f5f5d

    • SHA512

      84e567d1f3ffb1c7de54b3d38c8fd3e62c856ab2c80971581dc58c651412ed69d108693718172af5b79deb9bc87b5d4b06ee7e68954bcdffe7b3e0e12e742434

    • SSDEEP

      49152:s4K3x1vU+JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18+tIuoITsdZ

    • 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