xworm | 545403ae8941712ac4f021d5867ac8df35a554d5754192c54da66f7b2a2d4e5f

Analysis

max time kernel
141s
max time network
155s
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, 06:12

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General

Target

67a62cb441400a13757721a9f7d8c6ba.exe
Size

63KB
MD5

67a62cb441400a13757721a9f7d8c6ba
SHA1

1e42025629579d101861b1b686beb475c48a8636
SHA256

2f7457a67bc6130046e72c2ab095d3744a410e4b04ac3315197b8b8849fc4e22
SHA512

87d3b0187a482638b15e8291793f72d8019bb952239dc749a3a79c9c11186d8a93cb18d0c7f4b9b582c2dde0a32c9173198082dd3c97589222fa4a6ba093ce54
SSDEEP

1536:V50NqnY2ITdR7iA72cWD+bO3JWB5sViBgOi+X:Vi8Y5RFiA7+D+bOcA9OiQ

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

127.0.0.1:14012

Attributes

Install_directory
%Userprofile%
install_file
unbranded.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/2408-1-0x0000000000180000-0x0000000000196000-memory.dmp	family_xworm
behavioral2/files/0x0006000000022bb6-7.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-1-5-21-3342763580-2723508992-2885672917-1000\Control Panel\International\Geo\Nation	67a62cb441400a13757721a9f7d8c6ba.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\unbranded.lnk	67a62cb441400a13757721a9f7d8c6ba.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\unbranded.lnk	67a62cb441400a13757721a9f7d8c6ba.exe

Executes dropped EXE 3 IoCs

pid	Process
4072	unbranded.exe
4032	unbranded.exe
6044	unbranded.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-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\unbranded = "C:\\Users\\Admin\\unbranded.exe"	67a62cb441400a13757721a9f7d8c6ba.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
4888	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2408	67a62cb441400a13757721a9f7d8c6ba.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2408	67a62cb441400a13757721a9f7d8c6ba.exe
Token: SeDebugPrivilege	4072	unbranded.exe
Token: SeDebugPrivilege	4032	unbranded.exe
Token: SeDebugPrivilege	6044	unbranded.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2408	67a62cb441400a13757721a9f7d8c6ba.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 4888	2408	67a62cb441400a13757721a9f7d8c6ba.exe	88
PID 2408 wrote to memory of 4888	2408	67a62cb441400a13757721a9f7d8c6ba.exe	88

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\67a62cb441400a13757721a9f7d8c6ba.exe
"C:\Users\Admin\AppData\Local\Temp\67a62cb441400a13757721a9f7d8c6ba.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:2408
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "unbranded" /tr "C:\Users\Admin\unbranded.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4888

C:\Users\Admin\unbranded.exe
C:\Users\Admin\unbranded.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4072

C:\Users\Admin\unbranded.exe
C:\Users\Admin\unbranded.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4032

C:\Users\Admin\unbranded.exe
C:\Users\Admin\unbranded.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:6044

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\unbranded.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\unbranded.exe

Filesize
63KB

MD5
67a62cb441400a13757721a9f7d8c6ba

SHA1
1e42025629579d101861b1b686beb475c48a8636

SHA256
2f7457a67bc6130046e72c2ab095d3744a410e4b04ac3315197b8b8849fc4e22

SHA512
87d3b0187a482638b15e8291793f72d8019bb952239dc749a3a79c9c11186d8a93cb18d0c7f4b9b582c2dde0a32c9173198082dd3c97589222fa4a6ba093ce54

Download Submit
memory/2408-0-0x00007FFCB69E3000-0x00007FFCB69E5000-memory.dmp

Filesize
8KB

Download
memory/2408-1-0x0000000000180000-0x0000000000196000-memory.dmp

Filesize
88KB

Download
memory/2408-6-0x00007FFCB69E0000-0x00007FFCB74A1000-memory.dmp

Filesize
10.8MB

Download
memory/2408-10-0x00007FFCB69E0000-0x00007FFCB74A1000-memory.dmp

Filesize
10.8MB

Download
memory/4072-9-0x00007FFCB69E0000-0x00007FFCB74A1000-memory.dmp

Filesize
10.8MB

Download
memory/4072-12-0x00007FFCB69E0000-0x00007FFCB74A1000-memory.dmp

Filesize
10.8MB

Download