General

  • Target

    255838-5724_1640264626_3269.exe

  • Size

    1.6MB

  • Sample

    220114-zn52jsaghj

  • MD5

    719710579599927fa9d972472e8a66b1

  • SHA1

    bdbc817efc196fd7cdbcb392e24375e03ed91b11

  • SHA256

    255838ffda0bd0d6c2565eed99d9497ffff2b7822b1a23c993251dfbf8a4a646

  • SHA512

    183d02bda63e9435f388b8598788d74585f474f823d5aa792477e420da21b45b8cef791f1460e3f782be4b6033423e54c736c4305ee223ef7497cc15fe44c330

Malware Config

Extracted

Family

arkei

Botnet

Default

C2

http://185.7.214.239/POeNDXYchB.php

Targets

    • Target

      255838-5724_1640264626_3269.exe

    • Size

      1.6MB

    • MD5

      719710579599927fa9d972472e8a66b1

    • SHA1

      bdbc817efc196fd7cdbcb392e24375e03ed91b11

    • SHA256

      255838ffda0bd0d6c2565eed99d9497ffff2b7822b1a23c993251dfbf8a4a646

    • SHA512

      183d02bda63e9435f388b8598788d74585f474f823d5aa792477e420da21b45b8cef791f1460e3f782be4b6033423e54c736c4305ee223ef7497cc15fe44c330

    • Arkei

      Arkei is an infostealer written in C++.

    • Arkei Stealer Payload

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Deletes itself

    • 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.

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks