General

  • Target

    e7cd5251460ece03498f3b615864cfe9ee6da0addf0a3a6eda6d777185dcb888

  • Size

    274KB

  • Sample

    220127-fv1kvsgbcj

  • MD5

    d8b4f17ef642b437253a28ec3cd3e650

  • SHA1

    8a61d01b971185bc56e4a26cfcd8e1862f674ba2

  • SHA256

    e7cd5251460ece03498f3b615864cfe9ee6da0addf0a3a6eda6d777185dcb888

  • SHA512

    25e0bf1d80cbfea57f0886b75233a27d4c4c9a8140b51ff0ed1b415f83989d4420fc90650335778f399334be8c4aef33afbd6ce6e507466a7870c5ae7cf46639

Malware Config

Extracted

Family

arkei

Botnet

Default

C2

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

Targets

    • Target

      e7cd5251460ece03498f3b615864cfe9ee6da0addf0a3a6eda6d777185dcb888

    • Size

      274KB

    • MD5

      d8b4f17ef642b437253a28ec3cd3e650

    • SHA1

      8a61d01b971185bc56e4a26cfcd8e1862f674ba2

    • SHA256

      e7cd5251460ece03498f3b615864cfe9ee6da0addf0a3a6eda6d777185dcb888

    • SHA512

      25e0bf1d80cbfea57f0886b75233a27d4c4c9a8140b51ff0ed1b415f83989d4420fc90650335778f399334be8c4aef33afbd6ce6e507466a7870c5ae7cf46639

    • Arkei

      Arkei is an infostealer written in C++.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • 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