General

  • Target

    f518326e84b36bc2777f3056e8ed4cd2f5ed959fb25f4d33c817571188cabe86

  • Size

    1.9MB

  • Sample

    240527-qfkafadg5v

  • MD5

    50b5de502d560091c9e64159cb64a1b8

  • SHA1

    34eece44d9f709984d2fd3acb2963621e980e1b6

  • SHA256

    f518326e84b36bc2777f3056e8ed4cd2f5ed959fb25f4d33c817571188cabe86

  • SHA512

    caa836ed41be1e4eb96ca302cc554ef00c7fca034ac92bfd1016e5b3ca421fbb51152746c58be6570acef419371ca5c78ce1e475aa873b9d9bd6ec10c671f81b

  • SSDEEP

    49152:CdKfTn6veJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTn9tIuoITsdZ

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

      f518326e84b36bc2777f3056e8ed4cd2f5ed959fb25f4d33c817571188cabe86

    • Size

      1.9MB

    • MD5

      50b5de502d560091c9e64159cb64a1b8

    • SHA1

      34eece44d9f709984d2fd3acb2963621e980e1b6

    • SHA256

      f518326e84b36bc2777f3056e8ed4cd2f5ed959fb25f4d33c817571188cabe86

    • SHA512

      caa836ed41be1e4eb96ca302cc554ef00c7fca034ac92bfd1016e5b3ca421fbb51152746c58be6570acef419371ca5c78ce1e475aa873b9d9bd6ec10c671f81b

    • SSDEEP

      49152:CdKfTn6veJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTn9tIuoITsdZ

    • 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