General

  • Target

    dc00eb5a66b87a51f308cb804916811d.exe

  • Size

    842KB

  • Sample

    210505-p6blfyf8xs

  • MD5

    dc00eb5a66b87a51f308cb804916811d

  • SHA1

    a9f6d4e6ec09aebde22a26a191d007c0ba471c94

  • SHA256

    e0fffaaa25dc5ace2bf9e00b3787ebb45299f98fc8d4dbe6aad888c03e6164aa

  • SHA512

    a05db0d9de27dfc54e2ccf6b96e3e10b2f045b3c62c11383529def3bd9173d73ba2472e8ee9b20996e8d9942f0785b2b109a0cf007d98d21037fe2fec8b1d1b8

Malware Config

Targets

    • Target

      dc00eb5a66b87a51f308cb804916811d.exe

    • Size

      842KB

    • MD5

      dc00eb5a66b87a51f308cb804916811d

    • SHA1

      a9f6d4e6ec09aebde22a26a191d007c0ba471c94

    • SHA256

      e0fffaaa25dc5ace2bf9e00b3787ebb45299f98fc8d4dbe6aad888c03e6164aa

    • SHA512

      a05db0d9de27dfc54e2ccf6b96e3e10b2f045b3c62c11383529def3bd9173d73ba2472e8ee9b20996e8d9942f0785b2b109a0cf007d98d21037fe2fec8b1d1b8

    • Deletes Windows Defender Definitions

      Uses mpcmdrun utility to delete all AV definitions.

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Disables Task Manager via registry modification

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • 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

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Looks up external IP address via web service

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

MITRE ATT&CK Matrix ATT&CK v6

Execution

Command-Line Interface

1
T1059

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Impair Defenses

1
T1562

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Tasks