General

  • Target

    6db479a92e664e5fb14bd48b72a1bbdb73a73c8858f25a2d10a82c6f2f0c8d77

  • Size

    2.0MB

  • Sample

    240526-yfnlvsad87

  • MD5

    6ac5e37523a6ce306d893174b1d80582

  • SHA1

    abe9f4a88d7329be787f7361740381341539ea8f

  • SHA256

    6db479a92e664e5fb14bd48b72a1bbdb73a73c8858f25a2d10a82c6f2f0c8d77

  • SHA512

    ca9d08cd480a61e4dd8354940161295d11c2f4429d93389eb2cb3f754faf091b907341de34665c0db2d69a1aa417d81ccbc50095d0e0f52ffeadcc8c8d3d5403

  • SSDEEP

    49152:OePpQEJJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEJtIuoITsdZ

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

      6db479a92e664e5fb14bd48b72a1bbdb73a73c8858f25a2d10a82c6f2f0c8d77

    • Size

      2.0MB

    • MD5

      6ac5e37523a6ce306d893174b1d80582

    • SHA1

      abe9f4a88d7329be787f7361740381341539ea8f

    • SHA256

      6db479a92e664e5fb14bd48b72a1bbdb73a73c8858f25a2d10a82c6f2f0c8d77

    • SHA512

      ca9d08cd480a61e4dd8354940161295d11c2f4429d93389eb2cb3f754faf091b907341de34665c0db2d69a1aa417d81ccbc50095d0e0f52ffeadcc8c8d3d5403

    • SSDEEP

      49152:OePpQEJJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEJtIuoITsdZ

    • 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