General

  • Target

    59e6285d64e4297839ec1dbb84d9d8e4a86b03a3fed62d21ac7aa0e4b8ed5c99

  • Size

    826KB

  • Sample

    211020-elb1gagef6

  • MD5

    e01c510967479341a3b64bb5e6b609b5

  • SHA1

    8c7dc9817b32a875f2dd3dba754af247f24658da

  • SHA256

    59e6285d64e4297839ec1dbb84d9d8e4a86b03a3fed62d21ac7aa0e4b8ed5c99

  • SHA512

    e2aa891f53fa81a6711fe0208ab0d9c2a4fda689446bfe124de30423475631549a88bdc0526aea18e5edb3791d0f12fca4fb8d3e28a60e098bcdd595850e5608

Malware Config

Extracted

Family

vidar

Version

41.5

Botnet

517

C2

https://mas.to/@xeroxxx

Attributes
  • profile_id

    517

Extracted

Family

djvu

C2

http://rlrz.org/fhsgtsspen6

Targets

    • Target

      59e6285d64e4297839ec1dbb84d9d8e4a86b03a3fed62d21ac7aa0e4b8ed5c99

    • Size

      826KB

    • MD5

      e01c510967479341a3b64bb5e6b609b5

    • SHA1

      8c7dc9817b32a875f2dd3dba754af247f24658da

    • SHA256

      59e6285d64e4297839ec1dbb84d9d8e4a86b03a3fed62d21ac7aa0e4b8ed5c99

    • SHA512

      e2aa891f53fa81a6711fe0208ab0d9c2a4fda689446bfe124de30423475631549a88bdc0526aea18e5edb3791d0f12fca4fb8d3e28a60e098bcdd595850e5608

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Tasks