General

  • Target

    f24873db74e421aea902858fc094c601.exe

  • Size

    589KB

  • Sample

    200731-s3xzgtk4tj

  • MD5

    f24873db74e421aea902858fc094c601

  • SHA1

    fefb3fb2abbb7847badffed0f9fad5a2b922b963

  • SHA256

    4b3bed149062abeddef6fe68cbb439f5ae3d3044a4870a125f83dfd37c34ca6c

  • SHA512

    7a3eebf9d10877bab9ae2995b116342c44f27bd37d59541442ff107e5550a88eddf6176b0a288c12685660cbeff44bd5849e4d163d66e3fa0af062903cb06d41

Malware Config

Targets

    • Target

      f24873db74e421aea902858fc094c601.exe

    • Size

      589KB

    • MD5

      f24873db74e421aea902858fc094c601

    • SHA1

      fefb3fb2abbb7847badffed0f9fad5a2b922b963

    • SHA256

      4b3bed149062abeddef6fe68cbb439f5ae3d3044a4870a125f83dfd37c34ca6c

    • SHA512

      7a3eebf9d10877bab9ae2995b116342c44f27bd37d59541442ff107e5550a88eddf6176b0a288c12685660cbeff44bd5849e4d163d66e3fa0af062903cb06d41

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • 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.

    • JavaScript code in executable

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Program crash

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

4
T1012

System Information Discovery

3
T1082

Remote System Discovery

1
T1018

Collection

Data from Local System

4
T1005

Command and Control

Web Service

1
T1102

Tasks