General

  • Target

    ae0e62a9ae1f471958341b45817b6804.bin

  • Size

    1.7MB

  • Sample

    241122-byh3rs1pc1

  • MD5

    99d25b3e9b50df4a883296df874b399f

  • SHA1

    933172fb2d872c1d40892c5560af1a9b8af9258b

  • SHA256

    019dd6f3c1f21ae590c9749ac0fc305fda223d6fc123ec9b236844f8efbd357f

  • SHA512

    f577bf29427cf44bd2631f13e35aafb02ab8225ef3049fc8fe08c00d23b5ce6bbd7904b24140b66de41ec93e3ba64ad3debdab9fb21b1615efe61d60fed21444

  • SSDEEP

    49152:bVglGT7wEDjFdeFYekpqpoAcyVM3Ntti6gTkwEtQIy:OpEDZde+gcFt0kDtQD

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

mars

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://176.113.115.178/FF/2.png

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://176.113.115.178/FF/3.png

Extracted

Language
hta
Source
URLs
hta.dropper

http://176.113.115.178/Windows-Update

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://176.113.115.178/FF/1.png

Extracted

Family

xworm

C2

87.120.112.33:8398

Attributes
  • Install_directory

    %LocalAppData%

  • install_file

    svchost.exe

  • telegram

    https://api.telegram.org/bot6673004050:AAEcDfPnnGAswDvyrn9-bkOySVSnbPqLnBU/sendMessage?chat_id=1470436579

Extracted

Family

gurcu

C2

https://api.telegram.org/bot6673004050:AAEcDfPnnGAswDvyrn9-bkOySVSnbPqLnBU/sendMessage?chat_id=1470436579

Targets

    • Target

      9b73356104654687374dfab3c5554e15dfb402a1089750d9c431e1c4964de8cb.exe

    • Size

      1.8MB

    • MD5

      ae0e62a9ae1f471958341b45817b6804

    • SHA1

      e13376d4bdb2e56751dc4c52d9ad24ed55d72877

    • SHA256

      9b73356104654687374dfab3c5554e15dfb402a1089750d9c431e1c4964de8cb

    • SHA512

      50d4eb6392626e7a337104e00eb819767f051bbe8975555b1621c88af4f1fc1d1f0b44360c94de00f7bd20d2590964d3fedac79c0bef9b334b934c87d19c2a83

    • SSDEEP

      49152:j++S/0Cfy6rIyGFA0F8yU/qfb7u5CpRvSM/TG:y+89yxyGrdVfcCpRlK

    • Amadey

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

    • Amadey family

    • CryptBot

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Cryptbot family

    • Detect Xworm Payload

    • Detects CryptBot payload

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Gurcu family

    • Gurcu, WhiteSnake

      Gurcu is a malware stealer written in C#.

    • Modifies Windows Defender Real-time Protection settings

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • UAC bypass

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to execute payload.

    • Creates new service(s)

    • Downloads MZ/PE file

    • Stops running service(s)

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • 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.

    • Drops startup file

    • 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 web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Windows security modification

    • Accesses Microsoft Outlook profiles

    • 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.

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks