General

  • Target

    48d937fa6be9ae343b73f310d17b19421380dac61897724b46fb955fb28eefc3

  • Size

    5.6MB

  • Sample

    250224-s1bvxaznv2

  • MD5

    d0f5c2e8b4fb77405e01017371282e4c

  • SHA1

    3c07c0d45bc3232d4d050c670a577f67fd77b522

  • SHA256

    48d937fa6be9ae343b73f310d17b19421380dac61897724b46fb955fb28eefc3

  • SHA512

    9c8118b69232968c5b2d1cb895defbff73caf6e756254270eabf5d364f3005341bb598a54453d32e051c6c56eb4551bb3e1d4e07afe20992f82715908df59ad7

  • SSDEEP

    98304:awlBVIUhJBeYJj7BHJnKT7XciKjONCcEBNMMtNd4SwX6lxaqyxcJ:LBVnzAsj7BpnKTYiGOccq+gNaSlmq6c

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

      48d937fa6be9ae343b73f310d17b19421380dac61897724b46fb955fb28eefc3

    • Size

      5.6MB

    • MD5

      d0f5c2e8b4fb77405e01017371282e4c

    • SHA1

      3c07c0d45bc3232d4d050c670a577f67fd77b522

    • SHA256

      48d937fa6be9ae343b73f310d17b19421380dac61897724b46fb955fb28eefc3

    • SHA512

      9c8118b69232968c5b2d1cb895defbff73caf6e756254270eabf5d364f3005341bb598a54453d32e051c6c56eb4551bb3e1d4e07afe20992f82715908df59ad7

    • SSDEEP

      98304:awlBVIUhJBeYJj7BHJnKT7XciKjONCcEBNMMtNd4SwX6lxaqyxcJ:LBVnzAsj7BpnKTYiGOccq+gNaSlmq6c

    • Amadey

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

    • Amadey 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