General

  • Target

    6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50

  • Size

    2.0MB

  • Sample

    240527-e7vdyahd29

  • MD5

    56de90f188380e01d25bcb6706daa44a

  • SHA1

    4475bd064fde06324c143c28497f2122d1e58be2

  • SHA256

    6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50

  • SHA512

    b36d881c7e1ce4de71547c1afeeba062db19776e71e1b9fac1979b6752f8058962dfb85da066398518c3e5c0fe551eed0c49845c6e08ca09d5606fcbad77f3e1

  • SSDEEP

    49152:OePpQExJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQExtIuoITsdZ

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

      6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50

    • Size

      2.0MB

    • MD5

      56de90f188380e01d25bcb6706daa44a

    • SHA1

      4475bd064fde06324c143c28497f2122d1e58be2

    • SHA256

      6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50

    • SHA512

      b36d881c7e1ce4de71547c1afeeba062db19776e71e1b9fac1979b6752f8058962dfb85da066398518c3e5c0fe551eed0c49845c6e08ca09d5606fcbad77f3e1

    • SSDEEP

      49152:OePpQExJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQExtIuoITsdZ

    • 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