General
-
Target
CheckDevices.exe
-
Size
10KB
-
Sample
241208-xdwc9a1re1
-
MD5
ca36f96aa7ca67cf4d2e227ce393349f
-
SHA1
21cd010dd38abc00992e88901c5f9f33c167cae2
-
SHA256
c29a78d31165cb75e92f1b383f2b68bed0249342634c25732de51215296cc6c9
-
SHA512
5c164a58c5c398e9b393dc22df163a5619f89b96112b0b5deec65b4bc9045c738189bd870a979014d349ad8fe479473d9ef3a133110ec87c037865542bb72452
-
SSDEEP
192:6rduMPMlcK/7GvRoCZgp8+50Z6Ff/3kySosp+yxp34STVJnIfUqqpOU:QPMlcK/7G5oCK0E/UySoyz34uVGfUqqQ
Static task
static1
Behavioral task
behavioral1
Sample
CheckDevices.exe
Resource
win10ltsc2021-20241023-en
Malware Config
Extracted
xworm
-
Install_directory
%Temp%
-
install_file
svchost.exe
-
pastebin_url
https://pastebin.com/raw/vJmE27fr
Extracted
xworm
3.0
plus-loves.gl.at.ply.gg:59327
-
Install_directory
%AppData%
-
install_file
USB.exe
Targets
-
-
Target
CheckDevices.exe
-
Size
10KB
-
MD5
ca36f96aa7ca67cf4d2e227ce393349f
-
SHA1
21cd010dd38abc00992e88901c5f9f33c167cae2
-
SHA256
c29a78d31165cb75e92f1b383f2b68bed0249342634c25732de51215296cc6c9
-
SHA512
5c164a58c5c398e9b393dc22df163a5619f89b96112b0b5deec65b4bc9045c738189bd870a979014d349ad8fe479473d9ef3a133110ec87c037865542bb72452
-
SSDEEP
192:6rduMPMlcK/7GvRoCZgp8+50Z6Ff/3kySosp+yxp34STVJnIfUqqpOU:QPMlcK/7G5oCK0E/UySoyz34uVGfUqqQ
-
DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
-
Dcrat family
-
Detect Xworm Payload
-
Modifies WinLogon for persistence
-
Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
-
Xworm family
-
Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
-
Downloads MZ/PE file
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Drops startup file
-
Executes dropped EXE
-
Adds Run key to start application
-
Legitimate hosting services abused for malware hosting/C2
-
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
-
Drops file in System32 directory
-
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1