General

  • Target

    b56e025d3efa3a65a6d31daff33d11f8.exe

  • Size

    310KB

  • Sample

    211125-vajh6sbbe7

  • MD5

    b56e025d3efa3a65a6d31daff33d11f8

  • SHA1

    6bf85a2da13381521053967cf6de35249eae84b8

  • SHA256

    61743625175cf4def0b55b55f8b5f7193e10de0b2de17236a59e4f5e9b081cf4

  • SHA512

    2539f3b7d773f5826ac8afa430739b89df2f8d7f6263d85d5385d20c67db67b9f63d58cf0a28ee71e45a74ee268fce414ed39d1be946ce9cb57f691b1b84ecf9

Malware Config

Extracted

Family

arkei

Botnet

Default

C2

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

Targets

    • Target

      b56e025d3efa3a65a6d31daff33d11f8.exe

    • Size

      310KB

    • MD5

      b56e025d3efa3a65a6d31daff33d11f8

    • SHA1

      6bf85a2da13381521053967cf6de35249eae84b8

    • SHA256

      61743625175cf4def0b55b55f8b5f7193e10de0b2de17236a59e4f5e9b081cf4

    • SHA512

      2539f3b7d773f5826ac8afa430739b89df2f8d7f6263d85d5385d20c67db67b9f63d58cf0a28ee71e45a74ee268fce414ed39d1be946ce9cb57f691b1b84ecf9

    • Arkei

      Arkei is an infostealer written in C++.

    • Arkei Stealer Payload

    • Downloads MZ/PE file

    • 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.

MITRE ATT&CK Matrix

Command and Control

    Credential Access

    Defense Evasion

      Execution

        Exfiltration

          Impact

            Initial Access

              Lateral Movement

                Persistence

                  Privilege Escalation