General

  • Target

    a720c2e37c316bbd94dfe76a67a9064456f7b542a987996aaec97b7fe4e6a1c8.exe

  • Size

    2.0MB

  • Sample

    250224-wjj2qswn13

  • MD5

    8a445d3ca25e94bbe7c52edb4f74a3bb

  • SHA1

    b237bc784714bcaf1bcf64c0a12b7a034688b6c0

  • SHA256

    a720c2e37c316bbd94dfe76a67a9064456f7b542a987996aaec97b7fe4e6a1c8

  • SHA512

    62645f5b7a8851d3a6cc607aded7ee7bc334447473a6d94dd56547a61d7739f6584dd0f5346ac9e862d8861d599fa4bc7fa0d9b0d4888e7e041a623374d59776

  • SSDEEP

    49152:xYBjyB/KJ37xg5CPTuJTfjrX3j+1h4KvWw8L7Yf6itA5NxN8g:VA7ugruJLj7j+1TSYmxP

Malware Config

Extracted

Family

amadey

Version

4.42

Botnet

9c9aa5

C2

http://185.215.113.43

Attributes
  • install_dir

    abc3bc1985

  • install_file

    skotes.exe

  • strings_key

    8a35cf2ea38c2817dba29a4b5b25dcf0

  • url_paths

    /Zu7JuNko/index.php

rc4.plain

Extracted

Family

stealc

Botnet

reno

C2

http://185.215.113.115

Attributes
  • url_path

    /c4becf79229cb002.php

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      a720c2e37c316bbd94dfe76a67a9064456f7b542a987996aaec97b7fe4e6a1c8.exe

    • Size

      2.0MB

    • MD5

      8a445d3ca25e94bbe7c52edb4f74a3bb

    • SHA1

      b237bc784714bcaf1bcf64c0a12b7a034688b6c0

    • SHA256

      a720c2e37c316bbd94dfe76a67a9064456f7b542a987996aaec97b7fe4e6a1c8

    • SHA512

      62645f5b7a8851d3a6cc607aded7ee7bc334447473a6d94dd56547a61d7739f6584dd0f5346ac9e862d8861d599fa4bc7fa0d9b0d4888e7e041a623374d59776

    • SSDEEP

      49152:xYBjyB/KJ37xg5CPTuJTfjrX3j+1h4KvWw8L7Yf6itA5NxN8g:VA7ugruJLj7j+1TSYmxP

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • Amadey family

    • GCleaner

      GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.

    • Gcleaner family

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Tofsee family

    • 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.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks