xworm | e73c96538ec60c2117b6ed82b7f95f8894abed022ee9ab03c1be90ebd9722f06

Analysis

max time kernel
39s
max time network
28s
platform
windows11-21h2_x64
resource
win11-20250314-en
resource tags

arch:x64arch:x86image:win11-20250314-enlocale:en-usos:windows11-21h2-x64system
submitted
23/03/2025, 17:05

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General

Target

winlogoc.exe
Size

72KB
MD5

33fba80c2580eebf95e25dea03331f68
SHA1

d0ed67fbbff537eb393206fc41c18d59b9a4bb3c
SHA256

4cbe94aefe8a24ebac9fb5c11c1efc89c15b1a7b1a2bf3587baface318ee4b2b
SHA512

8213c45c68a38984a2ad11ab0651ae9933dc538ff260e31753f2f9c3aacff038048bcf2680bb7993b5f4005f48ae7e5c74e7325bdf6ef20df1ae7aa58f7ae4bc
SSDEEP

1536:UzF1OeqsJlPPf/TpX0bOc2yu/n+77QOI3taVwi4y:yFBibOL/nSsOI3tR5y

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

SLL.casacam.net:4444

Attributes

Install_directory
%LocalAppData%
install_file
Interrupi.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral6/memory/4932-1-0x00000000006E0000-0x00000000006F8000-memory.dmp	family_xworm

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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Interrupi.lnk	winlogoc.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Interrupi.lnk	winlogoc.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-1-5-21-1678082226-3994841222-899489560-1000\Software\Microsoft\Windows\CurrentVersion\Run\Interrupi = "C:\\Users\\Admin\\AppData\\Local\\Interrupi.exe"	winlogoc.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
2136	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4932	winlogoc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4932	winlogoc.exe
Token: SeDebugPrivilege	4932	winlogoc.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4932 wrote to memory of 2136	4932	winlogoc.exe	78
PID 4932 wrote to memory of 2136	4932	winlogoc.exe	78

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\winlogoc.exe
"C:\Users\Admin\AppData\Local\Temp\winlogoc.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4932
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Interrupi" /tr "C:\Users\Admin\AppData\Local\Interrupi.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2136

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

memory/4932-1-0x00000000006E0000-0x00000000006F8000-memory.dmp

Filesize
96KB

Download
memory/4932-0-0x00007FFF17ED3000-0x00007FFF17ED5000-memory.dmp

Filesize
8KB

Download
memory/4932-6-0x00007FFF17ED0000-0x00007FFF18992000-memory.dmp

Filesize
10.8MB

Download
memory/4932-7-0x00007FFF17ED3000-0x00007FFF17ED5000-memory.dmp

Filesize
8KB

Download
memory/4932-8-0x00007FFF17ED0000-0x00007FFF18992000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads