General

  • Target

    80e2d5fba3477f91f34b5d7f411ff21c26d485fcca866efba1731fc62c258b29

  • Size

    2.0MB

  • Sample

    240526-x9nnaahc5w

  • MD5

    bd622a5077529dbc431d4564168fa93e

  • SHA1

    6590794f0538903d7efb1548aa62edf2f59986bc

  • SHA256

    80e2d5fba3477f91f34b5d7f411ff21c26d485fcca866efba1731fc62c258b29

  • SHA512

    62acb15f92d6721f3734650962be49ca9bec49a8513218bd32dd47aa3580bc7f951bb739880740b8f425a454c191594e38e9ddeaa71069ee24c523a5d2cb7a97

  • SSDEEP

    49152:OePpQE1JtTF+TxMoxc1TU+j+dAzGwlrh:OePpQE1tIuoITsdZ

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

      80e2d5fba3477f91f34b5d7f411ff21c26d485fcca866efba1731fc62c258b29

    • Size

      2.0MB

    • MD5

      bd622a5077529dbc431d4564168fa93e

    • SHA1

      6590794f0538903d7efb1548aa62edf2f59986bc

    • SHA256

      80e2d5fba3477f91f34b5d7f411ff21c26d485fcca866efba1731fc62c258b29

    • SHA512

      62acb15f92d6721f3734650962be49ca9bec49a8513218bd32dd47aa3580bc7f951bb739880740b8f425a454c191594e38e9ddeaa71069ee24c523a5d2cb7a97

    • SSDEEP

      49152:OePpQE1JtTF+TxMoxc1TU+j+dAzGwlrh:OePpQE1tIuoITsdZ

    • 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