xworm | e65d7f5beb1f383e07917e867fb3b18a59a597319d152ad148b37a8924b8780d

General

Target

SamsungCommisionExternal.exe
Size

63KB
MD5

6f30a565049364df3068b5bc88fd36d6
SHA1

2ca485eb96156bfc561acd69649cf3339da6c610
SHA256

e65d7f5beb1f383e07917e867fb3b18a59a597319d152ad148b37a8924b8780d
SHA512

c01edc2fe4e5ad26b9511cc0bc114221878cf961b436a091a79611ce27da69ce7cf58afdcc71d295ad25f08701b1eb16c0c298fd22fbcb69004f760ea2b89ffe
SSDEEP

1536:9VbfG3pj8mIfpubPOggHEyj26+6POhjV5yD/9:/fGZrIf0bPDgkyjnPOhp5U9

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:24707

modified-begun.gl.at.ply.gg:24707

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2684-1-0x0000000000900000-0x0000000000916000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2468	powershell.exe
2464	powershell.exe
2824	powershell.exe
2068	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Smasmug.lnk	SamsungCommisionExternal.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Smasmug.lnk	SamsungCommisionExternal.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\Smasmug = "C:\\Users\\Admin\\AppData\\Roaming\\Smasmug"	SamsungCommisionExternal.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ip-api.com

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2824	powershell.exe
2068	powershell.exe
2468	powershell.exe
2464	powershell.exe
2684	SamsungCommisionExternal.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2684	SamsungCommisionExternal.exe
Token: SeDebugPrivilege	2824	powershell.exe
Token: SeDebugPrivilege	2068	powershell.exe
Token: SeDebugPrivilege	2468	powershell.exe
Token: SeDebugPrivilege	2464	powershell.exe
Token: SeDebugPrivilege	2684	SamsungCommisionExternal.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2684	SamsungCommisionExternal.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 2824	2684	SamsungCommisionExternal.exe	31
PID 2684 wrote to memory of 2824	2684	SamsungCommisionExternal.exe	31
PID 2684 wrote to memory of 2824	2684	SamsungCommisionExternal.exe	31
PID 2684 wrote to memory of 2068	2684	SamsungCommisionExternal.exe	33
PID 2684 wrote to memory of 2068	2684	SamsungCommisionExternal.exe	33
PID 2684 wrote to memory of 2068	2684	SamsungCommisionExternal.exe	33
PID 2684 wrote to memory of 2468	2684	SamsungCommisionExternal.exe	35
PID 2684 wrote to memory of 2468	2684	SamsungCommisionExternal.exe	35
PID 2684 wrote to memory of 2468	2684	SamsungCommisionExternal.exe	35
PID 2684 wrote to memory of 2464	2684	SamsungCommisionExternal.exe	37
PID 2684 wrote to memory of 2464	2684	SamsungCommisionExternal.exe	37
PID 2684 wrote to memory of 2464	2684	SamsungCommisionExternal.exe	37

C:\Users\Admin\AppData\Local\Temp\SamsungCommisionExternal.exe
"C:\Users\Admin\AppData\Local\Temp\SamsungCommisionExternal.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:2684
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\SamsungCommisionExternal.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2824
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SamsungCommisionExternal.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2068
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Smasmug'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2468
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Smasmug'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2464

Network

DNS

ip-api.com

SamsungCommisionExternal.exe

Remote address:

8.8.8.8:53

Request

ip-api.com

IN A

Response

ip-api.com

IN A

208.95.112.1
GET

http://ip-api.com/line/?fields=hosting

SamsungCommisionExternal.exe

Remote address:

208.95.112.1:80

Request

GET /line/?fields=hosting HTTP/1.1
Host: ip-api.com
Connection: Keep-Alive

Response

HTTP/1.1 200 OK

Date: Wed, 22 Jan 2025 14:53:20 GMT
Content-Type: text/plain; charset=utf-8
Content-Length: 6
Access-Control-Allow-Origin: *
X-Ttl: 53
X-Rl: 43
DNS

modified-begun.gl.at.ply.gg

SamsungCommisionExternal.exe

Remote address:

8.8.8.8:53

Request

modified-begun.gl.at.ply.gg

IN A

Response

modified-begun.gl.at.ply.gg

IN A

147.185.221.25

208.95.112.1:80

http://ip-api.com/line/?fields=hosting

http

SamsungCommisionExternal.exe

362 B
347 B
6
4

HTTP Request

GET http://ip-api.com/line/?fields=hosting

HTTP Response

200
147.185.221.25:24707

modified-begun.gl.at.ply.gg

SamsungCommisionExternal.exe

2.8kB
1.7kB
37
33

8.8.8.8:53

ip-api.com

dns

SamsungCommisionExternal.exe

56 B
72 B
1
1

DNS Request

ip-api.com

DNS Response

208.95.112.1
8.8.8.8:53

modified-begun.gl.at.ply.gg

dns

SamsungCommisionExternal.exe

73 B
89 B
1
1

DNS Request

modified-begun.gl.at.ply.gg

DNS Response

147.185.221.25

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
877301d7dd5e0de14f77c3b6a8011366

SHA1
7c4481e91f01f2f33d35a626c65354a98c1888d8

SHA256
b4383488854fadad7dc2f7063f5552754ba9b4294793b19021b4a300fdf957f4

SHA512
4ca4f2770429dfaab1e82c603986c0c12223bef2a9234a00a7952c4ac67e227cc7a6a547dc8c95398745660408a9144e0c61d35c7eb3eba3817c08d6e2f87e73

Download Submit
memory/2068-16-0x000000001B5F0000-0x000000001B8D2000-memory.dmp

Filesize
2.9MB

Download
memory/2068-17-0x00000000022C0000-0x00000000022C8000-memory.dmp

Filesize
32KB

Download
memory/2684-0-0x000007FEF6343000-0x000007FEF6344000-memory.dmp

Filesize
4KB

Download
memory/2684-1-0x0000000000900000-0x0000000000916000-memory.dmp

Filesize
88KB

Download
memory/2684-2-0x000007FEF6340000-0x000007FEF6D2C000-memory.dmp

Filesize
9.9MB

Download
memory/2684-3-0x000007FEF6343000-0x000007FEF6344000-memory.dmp

Filesize
4KB

Download
memory/2684-32-0x000007FEF6340000-0x000007FEF6D2C000-memory.dmp

Filesize
9.9MB

Download
memory/2824-8-0x0000000002CD0000-0x0000000002D50000-memory.dmp

Filesize
512KB

Download
memory/2824-9-0x000000001B6F0000-0x000000001B9D2000-memory.dmp

Filesize
2.9MB

Download
memory/2824-10-0x0000000002340000-0x0000000002348000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

HTTP Request

HTTP Response

DNS Request

DNS Response

DNS Request

DNS Response

MITRE ATT&CK Enterprise v15

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Downloads

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