xworm | 7ddbec7fac00ec5624f45da5879ebfa97d95b21c7842cbaa1058daa46a47bd41

Analysis

max time kernel
145s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:16

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General

Target

c53059381a17db7f48cf6871b7869c48.exe
Size

71KB
MD5

c53059381a17db7f48cf6871b7869c48
SHA1

56afbdfcedd33f8002d4624a83ce4a07dea43454
SHA256

d462a5239f8b7933b6202c0cd440b2593ac44be6ac5e9d12b1f3f6ba675e0e2b
SHA512

85a4d82bc75cc2365668de13df983bdf4ae8d39c37161da2ef1d747eeaf1cb0b5585ea1f973b4671a725e54bd47f3d288cd6dfff2dc30ed886f968a1a18302f2
SSDEEP

1536:V0qYHDDZY5rgvZzOnAaDBnza+bhVB4gc8ivg6bPQROE2HkKQOT/B:qqkDDu5rs9Ozc+bf7j2IROaXaB

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

127.0.0.1:62271

renzik-62271.portmap.host:62271

Attributes

Install_directory
%Temp%
install_file
svchost.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral30/memory/5476-1-0x0000000000D00000-0x0000000000D18000-memory.dmp	family_xworm
behavioral30/files/0x0009000000024284-9.dat	family_xworm

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\Control Panel\International\Geo\Nation	c53059381a17db7f48cf6871b7869c48.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	c53059381a17db7f48cf6871b7869c48.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	c53059381a17db7f48cf6871b7869c48.exe

Executes dropped EXE 2 IoCs

pid	Process
1392	svchost.exe
5400	svchost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe"	c53059381a17db7f48cf6871b7869c48.exe

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4804	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
5476	c53059381a17db7f48cf6871b7869c48.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	5476	c53059381a17db7f48cf6871b7869c48.exe
Token: SeDebugPrivilege	5476	c53059381a17db7f48cf6871b7869c48.exe
Token: SeDebugPrivilege	1392	svchost.exe
Token: SeDebugPrivilege	5400	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5476	c53059381a17db7f48cf6871b7869c48.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5476 wrote to memory of 4804	5476	c53059381a17db7f48cf6871b7869c48.exe	91
PID 5476 wrote to memory of 4804	5476	c53059381a17db7f48cf6871b7869c48.exe	91

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\c53059381a17db7f48cf6871b7869c48.exe
"C:\Users\Admin\AppData\Local\Temp\c53059381a17db7f48cf6871b7869c48.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5476
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4804

C:\Users\Admin\AppData\Local\Temp\svchost.exe
C:\Users\Admin\AppData\Local\Temp\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1392

C:\Users\Admin\AppData\Local\Temp\svchost.exe
C:\Users\Admin\AppData\Local\Temp\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\svchost.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
71KB

MD5
c53059381a17db7f48cf6871b7869c48

SHA1
56afbdfcedd33f8002d4624a83ce4a07dea43454

SHA256
d462a5239f8b7933b6202c0cd440b2593ac44be6ac5e9d12b1f3f6ba675e0e2b

SHA512
85a4d82bc75cc2365668de13df983bdf4ae8d39c37161da2ef1d747eeaf1cb0b5585ea1f973b4671a725e54bd47f3d288cd6dfff2dc30ed886f968a1a18302f2

Download Submit
memory/1392-11-0x00007FFEEE070000-0x00007FFEEEB31000-memory.dmp

Filesize
10.8MB

Download
memory/1392-13-0x00007FFEEE070000-0x00007FFEEEB31000-memory.dmp

Filesize
10.8MB

Download
memory/5476-0-0x00007FFEEE073000-0x00007FFEEE075000-memory.dmp

Filesize
8KB

Download
memory/5476-1-0x0000000000D00000-0x0000000000D18000-memory.dmp

Filesize
96KB

Download
memory/5476-6-0x00007FFEEE070000-0x00007FFEEEB31000-memory.dmp

Filesize
10.8MB

Download
memory/5476-7-0x00007FFEEE073000-0x00007FFEEE075000-memory.dmp

Filesize
8KB

Download
memory/5476-8-0x00007FFEEE070000-0x00007FFEEEB31000-memory.dmp

Filesize
10.8MB

Download