xworm | 5e5d5458b8a025c2bc9a6e7998492989732967c9a1019b11d655200adf3686c7

Analysis

max time kernel
146s
max time network
128s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:13

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General

Target

825b5bf7809427781ab9eefb0f139255.exe
Size

38KB
MD5

825b5bf7809427781ab9eefb0f139255
SHA1

6864d57c5fc44e43fca8fda5bfb40c26b7a70804
SHA256

0e7b11f47c021e3e338d099da258cc2e068aff9eddc68e603f82d53347134a31
SHA512

6dad901703326ab2b853d9a0ec73fcbac523127c7de33cf787a217d61818cb7e350bef87fa6d0553977eaf46840260873c6a9087aa234624d62d4c01bbd16b14
SSDEEP

768:vzpm6oL50kuAM6tQijixOTFQ9UBOwhebJE:rpmLekMFeFQ9UBOwIVE

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

127.0.0.1:7000

Mutex

3of0BUcZm7XWUIl3

Attributes

Install_directory
%Userprofile%
install_file
unbranded.exe

aes.plain

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral9/memory/2936-1-0x0000000000070000-0x0000000000080000-memory.dmp	family_xworm
behavioral9/files/0x00050000000198f0-10.dat	family_xworm
behavioral9/memory/2620-12-0x0000000000EB0000-0x0000000000EC0000-memory.dmp	family_xworm
behavioral9/memory/1088-15-0x00000000002C0000-0x00000000002D0000-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\unbranded.lnk	825b5bf7809427781ab9eefb0f139255.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\unbranded.lnk	825b5bf7809427781ab9eefb0f139255.exe

Executes dropped EXE 2 IoCs

pid	Process
2620	unbranded.exe
1088	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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\unbranded = "C:\\Users\\Admin\\unbranded.exe"	825b5bf7809427781ab9eefb0f139255.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
2432	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2936	825b5bf7809427781ab9eefb0f139255.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2936	825b5bf7809427781ab9eefb0f139255.exe
Token: SeDebugPrivilege	2620	unbranded.exe
Token: SeDebugPrivilege	1088	unbranded.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2936	825b5bf7809427781ab9eefb0f139255.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 2432	2936	825b5bf7809427781ab9eefb0f139255.exe	31
PID 2936 wrote to memory of 2432	2936	825b5bf7809427781ab9eefb0f139255.exe	31
PID 2936 wrote to memory of 2432	2936	825b5bf7809427781ab9eefb0f139255.exe	31
PID 2952 wrote to memory of 2620	2952	taskeng.exe	34
PID 2952 wrote to memory of 2620	2952	taskeng.exe	34
PID 2952 wrote to memory of 2620	2952	taskeng.exe	34
PID 2952 wrote to memory of 1088	2952	taskeng.exe	35
PID 2952 wrote to memory of 1088	2952	taskeng.exe	35
PID 2952 wrote to memory of 1088	2952	taskeng.exe	35

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\825b5bf7809427781ab9eefb0f139255.exe
"C:\Users\Admin\AppData\Local\Temp\825b5bf7809427781ab9eefb0f139255.exe"
1⤵
- 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:2936
- 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:2432

C:\Windows\system32\taskeng.exe
taskeng.exe {6A6C3FB7-9780-44C3-BCB8-13092F0DB509} S-1-5-21-2872745919-2748461613-2989606286-1000:CCJBVTGQ\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2952
- C:\Users\Admin\unbranded.exe
  C:\Users\Admin\unbranded.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2620
- C:\Users\Admin\unbranded.exe
  C:\Users\Admin\unbranded.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1088

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\unbranded.exe

Filesize
38KB

MD5
825b5bf7809427781ab9eefb0f139255

SHA1
6864d57c5fc44e43fca8fda5bfb40c26b7a70804

SHA256
0e7b11f47c021e3e338d099da258cc2e068aff9eddc68e603f82d53347134a31

SHA512
6dad901703326ab2b853d9a0ec73fcbac523127c7de33cf787a217d61818cb7e350bef87fa6d0553977eaf46840260873c6a9087aa234624d62d4c01bbd16b14

Download Submit
memory/1088-15-0x00000000002C0000-0x00000000002D0000-memory.dmp

Filesize
64KB

Download
memory/2620-12-0x0000000000EB0000-0x0000000000EC0000-memory.dmp

Filesize
64KB

Download
memory/2936-0-0x000007FEF62E3000-0x000007FEF62E4000-memory.dmp

Filesize
4KB

Download
memory/2936-1-0x0000000000070000-0x0000000000080000-memory.dmp

Filesize
64KB

Download
memory/2936-6-0x000007FEF62E0000-0x000007FEF6CCC000-memory.dmp

Filesize
9.9MB

Download
memory/2936-7-0x000007FEF62E3000-0x000007FEF62E4000-memory.dmp

Filesize
4KB

Download
memory/2936-8-0x000007FEF62E0000-0x000007FEF6CCC000-memory.dmp

Filesize
9.9MB

Download