xworm | 6c23a9902ec13708c31b406e9eb377e8d97c8bfcedbc88125e03ec3ffadf5b4b

Analysis

max time kernel
7s
max time network
11s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
24-05-2024 13:53

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General

Target

XCliwwent.exe
Size

36KB
MD5

47978d37991923fe10c8a2eda94b54e5
SHA1

be6a3f5ba728171c75c89eafc306121310b55c13
SHA256

6c23a9902ec13708c31b406e9eb377e8d97c8bfcedbc88125e03ec3ffadf5b4b
SHA512

0546809daa91d617dbcd079caaa339b436aacb5de92070f5b67c22c582d00639a051187fe0528c85947024a9e5c0bbfdc3371b6432dbb74c692d70c0839f213d
SSDEEP

768:B2O/wjF7REa8B/bHh9Q3B7rh/Fu9yIZROfhV/OP:2FVCzHhOx7r5Fu9yMROfKP

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

fax-safely.gl.at.ply.gg:61182

Mutex

SS03BzgRREzhTLGt

Attributes

Install_directory
%LocalAppData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2188-1-0x0000000000560000-0x0000000000570000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

XCliwwent.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	XCliwwent.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

XCliwwent.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XCliwwent = "C:\\Users\\Admin\\AppData\\Local\\XCliwwent.exe"	XCliwwent.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

1972 schtasks.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

XCliwwent.exe

description pid process

Token: SeDebugPrivilege 2188 XCliwwent.exe

pid	process
1972	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	2188	XCliwwent.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

XCliwwent.exe

description	pid	process	target process
PID 2188 wrote to memory of 1972	2188	XCliwwent.exe	schtasks.exe
PID 2188 wrote to memory of 1972	2188	XCliwwent.exe	schtasks.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\XCliwwent.exe
"C:\Users\Admin\AppData\Local\Temp\XCliwwent.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2188

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XCliwwent" /tr "C:\Users\Admin\AppData\Local\XCliwwent.exe"
2⤵
- Creates scheduled task(s)
PID:1972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2188-0-0x00007FFA49D23000-0x00007FFA49D25000-memory.dmp

Filesize
8KB

Download
memory/2188-1-0x0000000000560000-0x0000000000570000-memory.dmp

Filesize
64KB

Download
memory/2188-5-0x00007FFA49D20000-0x00007FFA4A7E1000-memory.dmp

Filesize
10.8MB

Download