General

  • Target

    file.exe

  • Size

    987KB

  • Sample

    230920-kcz9lafa8x

  • MD5

    b6cab87e438d584a62ffc6a79e51ba2b

  • SHA1

    f602fe73458306cf8764fd3516d09265a21d1c4b

  • SHA256

    3b7870b65227bcbbc9c5d71c50b214b4a5feb324afa62b1f1e75cbb422722666

  • SHA512

    caf7b75da53cfd0e2db5fd08b04693302198eb9c26e8891dea6b11ea7954bd8e55859024ee34d4323ed767b5d5a920a0024c8008c20db70c632e4b60d0bd0989

  • SSDEEP

    12288:gMrxy90nyU9A3JXW1De3saSzOHSCDb7FiElEyunB3FrLuP2zO3jFiRMmgfLzk:ByzUo5/3pb7FimGrrLuP2zOxqXgfLQ

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
rc4.i32

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

trush

C2

77.91.124.82:19071

Attributes
  • auth_value

    c13814867cde8193679cd0cad2d774be

Targets

    • Target

      file.exe

    • Size

      987KB

    • MD5

      b6cab87e438d584a62ffc6a79e51ba2b

    • SHA1

      f602fe73458306cf8764fd3516d09265a21d1c4b

    • SHA256

      3b7870b65227bcbbc9c5d71c50b214b4a5feb324afa62b1f1e75cbb422722666

    • SHA512

      caf7b75da53cfd0e2db5fd08b04693302198eb9c26e8891dea6b11ea7954bd8e55859024ee34d4323ed767b5d5a920a0024c8008c20db70c632e4b60d0bd0989

    • SSDEEP

      12288:gMrxy90nyU9A3JXW1De3saSzOHSCDb7FiElEyunB3FrLuP2zO3jFiRMmgfLzk:ByzUo5/3pb7FimGrrLuP2zOxqXgfLQ

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Detect Fabookie payload

    • Detected google phishing page

    • Detects Healer an antivirus disabler dropper

    • Fabookie

      Fabookie is facebook account info stealer.

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • Healer

      Healer an antivirus disabler dropper.

    • Modifies Windows Defender Real-time Protection settings

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Windows security bypass

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Modifies boot configuration data using bcdedit

    • XMRig Miner payload

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Possible attempt to disable PatchGuard

      Rootkits can use kernel patching to embed themselves in an operating system.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Uses the VBS compiler for execution

    • Windows security modification

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • Manipulates WinMon driver.

      Roottkits write to WinMon to hide PIDs from being detected.

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks