General

  • Target

    https://download.oxy.st/d/IqOh/2/0a3b6a824fd96a5a3e9aeda59d84d085#

  • Sample

    240423-vh6zfaaa7t

Malware Config

Extracted

Family

xworm

C2

courses-disney.gl.at.ply.gg:21335

Attributes
  • Install_directory

    %AppData%

  • install_file

    Cracked.exe

  • telegram

    https://api.telegram.org/bot7006468177:AAEjUyc53owWdXWMasYo_ZE1Y7t2sH1O718/sendMessage?chat_id=809478226

Targets

    • Target

      https://download.oxy.st/d/IqOh/2/0a3b6a824fd96a5a3e9aeda59d84d085#

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Downloads MZ/PE file

    • Modifies Installed Components in the registry

    • Sets file execution options in registry

    • Checks computer location settings

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

    • Drops startup file

    • 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.

    • Registers COM server for autorun

    • 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.

    • Installs/modifies Browser Helper Object

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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

4
T1547

Registry Run Keys / Startup Folder

4
T1547.001

Browser Extensions

1
T1176

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

4
T1547

Registry Run Keys / Startup Folder

4
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

6
T1112

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

8
T1012

System Information Discovery

7
T1082

Peripheral Device Discovery

2
T1120

Collection

Data from Local System

2
T1005

Tasks