General

  • Target

    b19038246c0a04f12236a690847bde2a1d629373f34c64d9791211421f45884e

  • Size

    302KB

  • Sample

    220119-wcyasacacq

  • MD5

    12c7a696808b64d4ffa8e907a17dd200

  • SHA1

    eab38577917a1e7d33b4f0a4d38ea711736421e0

  • SHA256

    b19038246c0a04f12236a690847bde2a1d629373f34c64d9791211421f45884e

  • SHA512

    ecc7a5e4f894efee14a16b47d06a4a267b54d2017d574bb97590e90f7d7aaded6e699b56d00f58d3ebd6d6e38ee7e55327e7688165db1fd4f8e94a232a114fdd

Malware Config

Extracted

Family

arkei

Botnet

Default

C2

http://file-file-host4.com/tratata.php

Targets

    • Target

      b19038246c0a04f12236a690847bde2a1d629373f34c64d9791211421f45884e

    • Size

      302KB

    • MD5

      12c7a696808b64d4ffa8e907a17dd200

    • SHA1

      eab38577917a1e7d33b4f0a4d38ea711736421e0

    • SHA256

      b19038246c0a04f12236a690847bde2a1d629373f34c64d9791211421f45884e

    • SHA512

      ecc7a5e4f894efee14a16b47d06a4a267b54d2017d574bb97590e90f7d7aaded6e699b56d00f58d3ebd6d6e38ee7e55327e7688165db1fd4f8e94a232a114fdd

    • 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

    • 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

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