General

  • Target

    file.exe

  • Size

    1.4MB

  • Sample

    230920-k42azafc9s

  • MD5

    ea05bd2055230899d6bcd306ea9fb700

  • SHA1

    9d0e7ba3ac031d282fcf8922ee2ef24be7beafe4

  • SHA256

    31816a58b810162ddafb79da75983cae35195f9301ecaee35b75dba89f64ed1e

  • SHA512

    43579ddcac0ab894b5ff9ce6141236d99c9af725c2f42b91a4f8e352a6a4f64a2027d512cb96aa32b7ec0f142cf08e295db9792535222f5aee3b7f1d37dc7449

  • SSDEEP

    24576:EymVJEXetaMY9FLfL7k9PF6fnmaejUaXIMzKqrn0XWdkOwHABJdR1t7W:TmVJKetuNfM9P4n7eIBarnaWdkUnP7

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

      1.4MB

    • MD5

      ea05bd2055230899d6bcd306ea9fb700

    • SHA1

      9d0e7ba3ac031d282fcf8922ee2ef24be7beafe4

    • SHA256

      31816a58b810162ddafb79da75983cae35195f9301ecaee35b75dba89f64ed1e

    • SHA512

      43579ddcac0ab894b5ff9ce6141236d99c9af725c2f42b91a4f8e352a6a4f64a2027d512cb96aa32b7ec0f142cf08e295db9792535222f5aee3b7f1d37dc7449

    • SSDEEP

      24576:EymVJEXetaMY9FLfL7k9PF6fnmaejUaXIMzKqrn0XWdkOwHABJdR1t7W:TmVJKetuNfM9P4n7eIBarnaWdkUnP7

    • DcRat

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

    • Detect Fabookie payload

    • 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