General

  • Target

    6a605bfcf8816ab1a6e21238fcb55747.bin

  • Size

    1.3MB

  • Sample

    240701-cl1mqawfjq

  • MD5

    c4facf467daeb66f90981c2fbd82b7f1

  • SHA1

    78f9d178c60c91858f411ed83b9c0db5944925c2

  • SHA256

    0b16b49b205bc2269849ef30fb7368f06d45cd9a96ffcb347be89ddd3cc81fb1

  • SHA512

    5f39c930fd7ece555b48446ff76b78dff4964477534a94b48331f556823e87345dc54427765fad489d360ecfa1281142ff1c47b73f8819c67f6cf0303d58b1d6

  • SSDEEP

    24576:s/1GGG0rpRgCOE1TuFD2+eyjmaqikAoAQFPQKlh4+KWoQPeqX5lDEf7jOxyq+uFT:s/Rgu16F1eyMzPFIKlhoRQHDy7CxyYB

Malware Config

Extracted

Family

vidar

C2

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Targets

    • Target

      07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f.exe

    • Size

      2.2MB

    • MD5

      6a605bfcf8816ab1a6e21238fcb55747

    • SHA1

      3e3a35e578c8a3faf88abe8fd7791ecc4bca538d

    • SHA256

      07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f

    • SHA512

      a6f7c16fe752905dd9305ba7e46b0cc5de054f1dafd8ba836f61a50781f5f089bcf2e49961fa886de4efc2c6c972313bfd2770558131c360bcb8b2823ea1db0a

    • SSDEEP

      49152:qpjNvr9ySAOmw4dHHO+SASagXkJr4MDkUwm:qpjNp7p4dHH8n5A

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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

Defense Evasion

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks