General

  • Target

    e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3

  • Size

    2.0MB

  • Sample

    240525-w5xjysea94

  • MD5

    a1cef5e196ba87c75db8f8ae17d58e97

  • SHA1

    d2935bc35fda912322d3569abc872788162bab5a

  • SHA256

    e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3

  • SHA512

    f77f07170679e3c6050a8b260fe6652a2047fa0d7f6da560c67d6ff627e5f029000f05997807ec1930523f9409e28292d9bc3f5d9546fa312846b5b9cab2c7bb

  • SSDEEP

    49152:s4K3x1vUeJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18etIuoITsdZ

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

      e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3

    • Size

      2.0MB

    • MD5

      a1cef5e196ba87c75db8f8ae17d58e97

    • SHA1

      d2935bc35fda912322d3569abc872788162bab5a

    • SHA256

      e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3

    • SHA512

      f77f07170679e3c6050a8b260fe6652a2047fa0d7f6da560c67d6ff627e5f029000f05997807ec1930523f9409e28292d9bc3f5d9546fa312846b5b9cab2c7bb

    • SSDEEP

      49152:s4K3x1vUeJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18etIuoITsdZ

    • 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