General

  • Target

    8d91d39f286cc239f1dcaec687c1277f4d918dfb61a7579f2bdb5f3ead3ee700

  • Size

    337KB

  • Sample

    220126-jcdvxsaecj

  • MD5

    24d3e127cc49fc25b6950cada7191b0f

  • SHA1

    f7e2ec81cb4d1a2a3c15a64696c21495384e8a72

  • SHA256

    8d91d39f286cc239f1dcaec687c1277f4d918dfb61a7579f2bdb5f3ead3ee700

  • SHA512

    c951b7bf2cb45d8b4e686b30155ffb93c4f4601fb425dc8a44cc4894a17f311c6640747204d0e2189f6bad024628f0ef2808462c9303bb0d401ac9e51ed26122

Malware Config

Extracted

Family

arkei

Botnet

Default

C2

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

Targets

    • Target

      8d91d39f286cc239f1dcaec687c1277f4d918dfb61a7579f2bdb5f3ead3ee700

    • Size

      337KB

    • MD5

      24d3e127cc49fc25b6950cada7191b0f

    • SHA1

      f7e2ec81cb4d1a2a3c15a64696c21495384e8a72

    • SHA256

      8d91d39f286cc239f1dcaec687c1277f4d918dfb61a7579f2bdb5f3ead3ee700

    • SHA512

      c951b7bf2cb45d8b4e686b30155ffb93c4f4601fb425dc8a44cc4894a17f311c6640747204d0e2189f6bad024628f0ef2808462c9303bb0d401ac9e51ed26122

    • 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