General

  • Target

    57c89b1381fa90a5a5b804702333d028e158c8669989ed78b5d3be7dc54ccf04

  • Size

    331KB

  • Sample

    220130-jrf9lahadr

  • MD5

    a6be7496c8c450bb8a4ee9e652e47f98

  • SHA1

    bcf6eae4e127d0b90fd0ebf1893a97f5c9e71152

  • SHA256

    57c89b1381fa90a5a5b804702333d028e158c8669989ed78b5d3be7dc54ccf04

  • SHA512

    6e58be517405ad1059255fffbcd84a9eb647e0c3ecb054fa12f00c5c711fcd90597064266d87cfb431c62191b927d661023c3a8a0570fa0a28db9b1b9ed7f02d

Malware Config

Extracted

Family

arkei

Botnet

Default

C2

http://coin-file-file-19.com/tratata.php

Targets

    • Target

      57c89b1381fa90a5a5b804702333d028e158c8669989ed78b5d3be7dc54ccf04

    • Size

      331KB

    • MD5

      a6be7496c8c450bb8a4ee9e652e47f98

    • SHA1

      bcf6eae4e127d0b90fd0ebf1893a97f5c9e71152

    • SHA256

      57c89b1381fa90a5a5b804702333d028e158c8669989ed78b5d3be7dc54ccf04

    • SHA512

      6e58be517405ad1059255fffbcd84a9eb647e0c3ecb054fa12f00c5c711fcd90597064266d87cfb431c62191b927d661023c3a8a0570fa0a28db9b1b9ed7f02d

    • Arkei

      Arkei is an infostealer written in C++.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

      suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

    • Arkei Stealer Payload

    • Downloads MZ/PE file

    • Sets service image path in registry

    • Checks computer location settings

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

    • Loads dropped DLL

    • 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.

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Collection

Data from Local System

2
T1005

Tasks