xworm | dc7d690adb8ea5ab1a9b1f65fc3a62b35d9ae4c57a7806ccb226b825f1465f2d

Analysis

max time kernel
125s
max time network
143s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/03/2025, 09:23

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General

Target

d1458dc39b290683cefbb01cc5b0991a.exe
Size

277KB
MD5

d1458dc39b290683cefbb01cc5b0991a
SHA1

e9749971be9d943cb2a62e2be5eb442161876ec6
SHA256

dc7d690adb8ea5ab1a9b1f65fc3a62b35d9ae4c57a7806ccb226b825f1465f2d
SHA512

f90bc037576ee1205fa260d5b6b05c95f930025bc40f541b92f39b845b8e9a90a59ec18ef0be1ab5cf7bb74ed6a6222fc1a882df894ba8e1e722d671aef37e35
SSDEEP

6144:mncN0em3ZxfIiz1uE9FT6gLc/wtgdmvRvtsUuVGh+/Kq3u:P0dfJ8E9d6gLMaDvzsVu+d+

Score

10^/10

xworm discovery persistence rat trojan

Malware Config

Signatures

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral1/memory/2936-11-0x0000000000400000-0x0000000000436000-memory.dmp	family_xworm
behavioral1/memory/2936-8-0x0000000000400000-0x0000000000436000-memory.dmp	family_xworm
behavioral1/memory/2936-7-0x0000000000400000-0x0000000000436000-memory.dmp	family_xworm
behavioral1/memory/2936-13-0x0000000000400000-0x0000000000436000-memory.dmp	family_xworm
behavioral1/memory/2936-16-0x0000000000400000-0x0000000000436000-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\d1458dc39b290683cefbb01cc5b0991a.exe	d1458dc39b290683cefbb01cc5b0991a.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\d1458dc39b290683cefbb01cc5b0991a.exe	d1458dc39b290683cefbb01cc5b0991a.exe

Executes dropped EXE 8 IoCs

pid	Process
1044	d1458dc39b290683cefbb01cc5b0991a.exe
1400	d1458dc39b290683cefbb01cc5b0991a.exe
1712	d1458dc39b290683cefbb01cc5b0991a.exe
1668	d1458dc39b290683cefbb01cc5b0991a.exe
1760	d1458dc39b290683cefbb01cc5b0991a.exe
2376	d1458dc39b290683cefbb01cc5b0991a.exe
2916	d1458dc39b290683cefbb01cc5b0991a.exe
1720	d1458dc39b290683cefbb01cc5b0991a.exe

Loads dropped DLL 15 IoCs

pid	Process
2868	WerFault.exe
2868	WerFault.exe
2868	WerFault.exe
2868	WerFault.exe
2868	WerFault.exe
1728	WerFault.exe
1728	WerFault.exe
1728	WerFault.exe
1728	WerFault.exe
1728	WerFault.exe
988	WerFault.exe
988	WerFault.exe
988	WerFault.exe
988	WerFault.exe
988	WerFault.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\d1458dc39b290683cefbb01cc5b0991a = "C:\\Users\\Admin\\AppData\\Roaming\\d1458dc39b290683cefbb01cc5b0991a.exe"	d1458dc39b290683cefbb01cc5b0991a.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2780 set thread context of 2936	2780	d1458dc39b290683cefbb01cc5b0991a.exe	30
PID 1044 set thread context of 1668	1044	d1458dc39b290683cefbb01cc5b0991a.exe	38
PID 1760 set thread context of 2376	1760	d1458dc39b290683cefbb01cc5b0991a.exe	42
PID 2916 set thread context of 1720	2916	d1458dc39b290683cefbb01cc5b0991a.exe	46

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

System Information Discovery
T1082

Program crash 4 IoCs

pid	pid_target	Process	procid_target
2760	2780	WerFault.exe	29
2868	1044	WerFault.exe	35
1728	1760	WerFault.exe	41
988	2916	WerFault.exe	45

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1458dc39b290683cefbb01cc5b0991a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1458dc39b290683cefbb01cc5b0991a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1458dc39b290683cefbb01cc5b0991a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1458dc39b290683cefbb01cc5b0991a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1458dc39b290683cefbb01cc5b0991a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1458dc39b290683cefbb01cc5b0991a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1458dc39b290683cefbb01cc5b0991a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1458dc39b290683cefbb01cc5b0991a.exe

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
2552	schtasks.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2780	d1458dc39b290683cefbb01cc5b0991a.exe
Token: SeDebugPrivilege	2936	d1458dc39b290683cefbb01cc5b0991a.exe
Token: SeDebugPrivilege	1044	d1458dc39b290683cefbb01cc5b0991a.exe
Token: SeDebugPrivilege	1668	d1458dc39b290683cefbb01cc5b0991a.exe
Token: SeDebugPrivilege	1760	d1458dc39b290683cefbb01cc5b0991a.exe
Token: SeDebugPrivilege	2376	d1458dc39b290683cefbb01cc5b0991a.exe
Token: SeDebugPrivilege	2916	d1458dc39b290683cefbb01cc5b0991a.exe
Token: SeDebugPrivilege	1720	d1458dc39b290683cefbb01cc5b0991a.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2780 wrote to memory of 2936	2780	d1458dc39b290683cefbb01cc5b0991a.exe	30
PID 2780 wrote to memory of 2936	2780	d1458dc39b290683cefbb01cc5b0991a.exe	30
PID 2780 wrote to memory of 2936	2780	d1458dc39b290683cefbb01cc5b0991a.exe	30
PID 2780 wrote to memory of 2936	2780	d1458dc39b290683cefbb01cc5b0991a.exe	30
PID 2780 wrote to memory of 2936	2780	d1458dc39b290683cefbb01cc5b0991a.exe	30
PID 2780 wrote to memory of 2936	2780	d1458dc39b290683cefbb01cc5b0991a.exe	30
PID 2780 wrote to memory of 2936	2780	d1458dc39b290683cefbb01cc5b0991a.exe	30
PID 2780 wrote to memory of 2936	2780	d1458dc39b290683cefbb01cc5b0991a.exe	30
PID 2780 wrote to memory of 2936	2780	d1458dc39b290683cefbb01cc5b0991a.exe	30
PID 2780 wrote to memory of 2760	2780	d1458dc39b290683cefbb01cc5b0991a.exe	31
PID 2780 wrote to memory of 2760	2780	d1458dc39b290683cefbb01cc5b0991a.exe	31
PID 2780 wrote to memory of 2760	2780	d1458dc39b290683cefbb01cc5b0991a.exe	31
PID 2780 wrote to memory of 2760	2780	d1458dc39b290683cefbb01cc5b0991a.exe	31
PID 2936 wrote to memory of 2552	2936	d1458dc39b290683cefbb01cc5b0991a.exe	32
PID 2936 wrote to memory of 2552	2936	d1458dc39b290683cefbb01cc5b0991a.exe	32
PID 2936 wrote to memory of 2552	2936	d1458dc39b290683cefbb01cc5b0991a.exe	32
PID 2936 wrote to memory of 2552	2936	d1458dc39b290683cefbb01cc5b0991a.exe	32
PID 2668 wrote to memory of 1044	2668	taskeng.exe	35
PID 2668 wrote to memory of 1044	2668	taskeng.exe	35
PID 2668 wrote to memory of 1044	2668	taskeng.exe	35
PID 2668 wrote to memory of 1044	2668	taskeng.exe	35
PID 1044 wrote to memory of 1400	1044	d1458dc39b290683cefbb01cc5b0991a.exe	36
PID 1044 wrote to memory of 1400	1044	d1458dc39b290683cefbb01cc5b0991a.exe	36
PID 1044 wrote to memory of 1400	1044	d1458dc39b290683cefbb01cc5b0991a.exe	36
PID 1044 wrote to memory of 1400	1044	d1458dc39b290683cefbb01cc5b0991a.exe	36
PID 1044 wrote to memory of 1712	1044	d1458dc39b290683cefbb01cc5b0991a.exe	37
PID 1044 wrote to memory of 1712	1044	d1458dc39b290683cefbb01cc5b0991a.exe	37
PID 1044 wrote to memory of 1712	1044	d1458dc39b290683cefbb01cc5b0991a.exe	37
PID 1044 wrote to memory of 1712	1044	d1458dc39b290683cefbb01cc5b0991a.exe	37
PID 1044 wrote to memory of 1668	1044	d1458dc39b290683cefbb01cc5b0991a.exe	38
PID 1044 wrote to memory of 1668	1044	d1458dc39b290683cefbb01cc5b0991a.exe	38
PID 1044 wrote to memory of 1668	1044	d1458dc39b290683cefbb01cc5b0991a.exe	38
PID 1044 wrote to memory of 1668	1044	d1458dc39b290683cefbb01cc5b0991a.exe	38
PID 1044 wrote to memory of 1668	1044	d1458dc39b290683cefbb01cc5b0991a.exe	38
PID 1044 wrote to memory of 1668	1044	d1458dc39b290683cefbb01cc5b0991a.exe	38
PID 1044 wrote to memory of 1668	1044	d1458dc39b290683cefbb01cc5b0991a.exe	38
PID 1044 wrote to memory of 1668	1044	d1458dc39b290683cefbb01cc5b0991a.exe	38
PID 1044 wrote to memory of 1668	1044	d1458dc39b290683cefbb01cc5b0991a.exe	38
PID 1044 wrote to memory of 2868	1044	d1458dc39b290683cefbb01cc5b0991a.exe	39
PID 1044 wrote to memory of 2868	1044	d1458dc39b290683cefbb01cc5b0991a.exe	39
PID 1044 wrote to memory of 2868	1044	d1458dc39b290683cefbb01cc5b0991a.exe	39
PID 1044 wrote to memory of 2868	1044	d1458dc39b290683cefbb01cc5b0991a.exe	39
PID 2668 wrote to memory of 1760	2668	taskeng.exe	41
PID 2668 wrote to memory of 1760	2668	taskeng.exe	41
PID 2668 wrote to memory of 1760	2668	taskeng.exe	41
PID 2668 wrote to memory of 1760	2668	taskeng.exe	41
PID 1760 wrote to memory of 2376	1760	d1458dc39b290683cefbb01cc5b0991a.exe	42
PID 1760 wrote to memory of 2376	1760	d1458dc39b290683cefbb01cc5b0991a.exe	42
PID 1760 wrote to memory of 2376	1760	d1458dc39b290683cefbb01cc5b0991a.exe	42
PID 1760 wrote to memory of 2376	1760	d1458dc39b290683cefbb01cc5b0991a.exe	42
PID 1760 wrote to memory of 2376	1760	d1458dc39b290683cefbb01cc5b0991a.exe	42
PID 1760 wrote to memory of 2376	1760	d1458dc39b290683cefbb01cc5b0991a.exe	42
PID 1760 wrote to memory of 2376	1760	d1458dc39b290683cefbb01cc5b0991a.exe	42
PID 1760 wrote to memory of 2376	1760	d1458dc39b290683cefbb01cc5b0991a.exe	42
PID 1760 wrote to memory of 2376	1760	d1458dc39b290683cefbb01cc5b0991a.exe	42
PID 1760 wrote to memory of 1728	1760	d1458dc39b290683cefbb01cc5b0991a.exe	43
PID 1760 wrote to memory of 1728	1760	d1458dc39b290683cefbb01cc5b0991a.exe	43
PID 1760 wrote to memory of 1728	1760	d1458dc39b290683cefbb01cc5b0991a.exe	43
PID 1760 wrote to memory of 1728	1760	d1458dc39b290683cefbb01cc5b0991a.exe	43
PID 2668 wrote to memory of 2916	2668	taskeng.exe	45
PID 2668 wrote to memory of 2916	2668	taskeng.exe	45
PID 2668 wrote to memory of 2916	2668	taskeng.exe	45
PID 2668 wrote to memory of 2916	2668	taskeng.exe	45
PID 2916 wrote to memory of 1720	2916	d1458dc39b290683cefbb01cc5b0991a.exe	46

C:\Users\Admin\AppData\Local\Temp\d1458dc39b290683cefbb01cc5b0991a.exe
"C:\Users\Admin\AppData\Local\Temp\d1458dc39b290683cefbb01cc5b0991a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2780
- C:\Users\Admin\AppData\Local\Temp\d1458dc39b290683cefbb01cc5b0991a.exe
  "C:\Users\Admin\AppData\Local\Temp\d1458dc39b290683cefbb01cc5b0991a.exe"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2936
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /sc minute /mo 1 /tn "d1458dc39b290683cefbb01cc5b0991a" /tr "C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2552
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2780 -s 508
  2⤵
  - Program crash
  PID:2760

C:\Windows\system32\taskeng.exe
taskeng.exe {BDED5446-CB5E-4AB5-9B55-9DA6CCF93A78} S-1-5-21-2872745919-2748461613-2989606286-1000:CCJBVTGQ\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe
  C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1044
- - C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe
    "C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe"
    3⤵
    - Executes dropped EXE
    PID:1400
- - C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe
    "C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe"
    3⤵
    - Executes dropped EXE
    PID:1712
- - C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe
    "C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1668
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1044 -s 532
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2868
- C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe
  C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1760
- - C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe
    "C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2376
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1760 -s 512
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:1728
- C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe
  C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2916
- - C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe
    "C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1720
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2916 -s 512
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:988

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\d1458dc39b290683cefbb01cc5b0991a.exe

Filesize
277KB

MD5
d1458dc39b290683cefbb01cc5b0991a

SHA1
e9749971be9d943cb2a62e2be5eb442161876ec6

SHA256
dc7d690adb8ea5ab1a9b1f65fc3a62b35d9ae4c57a7806ccb226b825f1465f2d

SHA512
f90bc037576ee1205fa260d5b6b05c95f930025bc40f541b92f39b845b8e9a90a59ec18ef0be1ab5cf7bb74ed6a6222fc1a882df894ba8e1e722d671aef37e35

Download Submit
memory/1044-25-0x00000000002B0000-0x00000000002FE000-memory.dmp

Filesize
312KB

Download
memory/1668-37-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1720-82-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1760-51-0x0000000000E20000-0x0000000000E6E000-memory.dmp

Filesize
312KB

Download
memory/2376-61-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2780-49-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2780-47-0x00000000744CE000-0x00000000744CF000-memory.dmp

Filesize
4KB

Download
memory/2780-2-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2780-17-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2780-1-0x0000000000C40000-0x0000000000C8E000-memory.dmp

Filesize
312KB

Download
memory/2780-0-0x00000000744CE000-0x00000000744CF000-memory.dmp

Filesize
4KB

Download
memory/2916-72-0x0000000000F40000-0x0000000000F8E000-memory.dmp

Filesize
312KB

Download
memory/2936-16-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2936-19-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2936-18-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2936-13-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2936-4-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2936-48-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2936-7-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2936-8-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2936-9-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2936-11-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2936-6-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads