General

  • Target

    place.rbxm

  • Size

    36KB

  • Sample

    240923-yskezazbqk

  • MD5

    c45e896dfbe036cbb8086a4302563874

  • SHA1

    4a6269d5ad553f45d30035d611fbdde62c2f682f

  • SHA256

    4a9a40a24ecdce151215c703dcc863691fbc386f42bc32f62770ba839bfe0d5f

  • SHA512

    41a7faa9451eb795daf9b36bfc8abc6d985c46954ea3eb90906b23b54389ad8dac98133bacd28c09e43ecefe066c94bb294789db57249a1bc656310622292cd6

  • SSDEEP

    384:SdN1WIKO7QTVerjOtr9NTNHRH5PGMmR+hfdV7F0S/wXcgZkljDPOz5mIk:iNKO7Serir9hNH1NXDd/wbutDPOz7k

Malware Config

Extracted

Family

xworm

Version

5.0

aes.plain

Extracted

Family

gurcu

C2

https://api.telegram.org/bot7533145045:AAGnW8Bkr0_G1f_ZxiKTve5hlRZjphTc0aM/sendMessage?chat_id=-4512836800

Targets

    • Target

      place.rbxm

    • Size

      36KB

    • MD5

      c45e896dfbe036cbb8086a4302563874

    • SHA1

      4a6269d5ad553f45d30035d611fbdde62c2f682f

    • SHA256

      4a9a40a24ecdce151215c703dcc863691fbc386f42bc32f62770ba839bfe0d5f

    • SHA512

      41a7faa9451eb795daf9b36bfc8abc6d985c46954ea3eb90906b23b54389ad8dac98133bacd28c09e43ecefe066c94bb294789db57249a1bc656310622292cd6

    • SSDEEP

      384:SdN1WIKO7QTVerjOtr9NTNHRH5PGMmR+hfdV7F0S/wXcgZkljDPOz5mIk:iNKO7Serir9hNH1NXDd/wbutDPOz7k

    • Detect Xworm Payload

    • Gurcu, WhiteSnake

      Gurcu is a malware stealer written in C#.

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Blocklisted process makes network request

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Event Triggered Execution: Image File Execution Options Injection

    • Manipulates Digital Signatures

      Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

    • Reads user/profile data of web browsers

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

    • 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.

    • Checks whether UAC is enabled

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Indicator Removal: Clear Persistence

      remove IFEO.

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks