xworm | 760f5ddd00760be411967d77224b29a48e00e1eed0e978ba4017979595d1637e

Analysis

max time kernel
141s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20250313-en
resource tags

arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:11

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General

Target

642fefb64c917e4bfd08481bb0727b0c.exe
Size

34KB
MD5

642fefb64c917e4bfd08481bb0727b0c
SHA1

17dad311c85853e4592769d15508d5fd562c8f21
SHA256

7c4df939396840b23f105b1bf45333f1f382adbbfc886f930e8e1f0384291e3a
SHA512

aa192797b25be45469e359602ba24837d967fc04e4cafc136998a4b7c39452a7227a481a7792e9af68bd81a5be8bf0e82cf304d50c9e9ba70a3d17a78edc86f1
SSDEEP

768:tVMy/GVquW7DizR4oa5Ooi/OQFyH9K16WO/h1bEs:LioDS4OoAJFa9K16WO/nEs

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

147.185.221.27:2926

Mutex

gNUymsZlOwOSH86A

Attributes

Install_directory
%ProgramData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral6/memory/1764-1-0x00000000003E0000-0x00000000003EE000-memory.dmp	family_xworm
behavioral6/files/0x000700000002422b-47.dat	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 3 IoCs

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

execution

PowerShell

T1059.001

pid	Process
3824	powershell.exe
4920	powershell.exe
3216	powershell.exe

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-1-5-21-3446877943-4095308722-756223633-1000\Control Panel\International\Geo\Nation	642fefb64c917e4bfd08481bb0727b0c.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\642fefb64c917e4bfd08481bb0727b0c.lnk	642fefb64c917e4bfd08481bb0727b0c.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\642fefb64c917e4bfd08481bb0727b0c.lnk	642fefb64c917e4bfd08481bb0727b0c.exe

Executes dropped EXE 2 IoCs

pid	Process
4332	642fefb64c917e4bfd08481bb0727b0c.exe
4844	642fefb64c917e4bfd08481bb0727b0c.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-1-5-21-3446877943-4095308722-756223633-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\642fefb64c917e4bfd08481bb0727b0c = "C:\\ProgramData\\642fefb64c917e4bfd08481bb0727b0c.exe"	642fefb64c917e4bfd08481bb0727b0c.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
5016	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3824	powershell.exe
3824	powershell.exe
4920	powershell.exe
4920	powershell.exe
3216	powershell.exe
3216	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	1764	642fefb64c917e4bfd08481bb0727b0c.exe
Token: SeDebugPrivilege	3824	powershell.exe
Token: SeDebugPrivilege	4920	powershell.exe
Token: SeDebugPrivilege	3216	powershell.exe
Token: SeDebugPrivilege	1764	642fefb64c917e4bfd08481bb0727b0c.exe
Token: SeDebugPrivilege	4332	642fefb64c917e4bfd08481bb0727b0c.exe
Token: SeDebugPrivilege	4844	642fefb64c917e4bfd08481bb0727b0c.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1764 wrote to memory of 3824	1764	642fefb64c917e4bfd08481bb0727b0c.exe	86
PID 1764 wrote to memory of 3824	1764	642fefb64c917e4bfd08481bb0727b0c.exe	86
PID 1764 wrote to memory of 4920	1764	642fefb64c917e4bfd08481bb0727b0c.exe	88
PID 1764 wrote to memory of 4920	1764	642fefb64c917e4bfd08481bb0727b0c.exe	88
PID 1764 wrote to memory of 3216	1764	642fefb64c917e4bfd08481bb0727b0c.exe	90
PID 1764 wrote to memory of 3216	1764	642fefb64c917e4bfd08481bb0727b0c.exe	90
PID 1764 wrote to memory of 5016	1764	642fefb64c917e4bfd08481bb0727b0c.exe	92
PID 1764 wrote to memory of 5016	1764	642fefb64c917e4bfd08481bb0727b0c.exe	92

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\642fefb64c917e4bfd08481bb0727b0c.exe
"C:\Users\Admin\AppData\Local\Temp\642fefb64c917e4bfd08481bb0727b0c.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1764
- 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\642fefb64c917e4bfd08481bb0727b0c.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3824
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '642fefb64c917e4bfd08481bb0727b0c.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4920
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\642fefb64c917e4bfd08481bb0727b0c.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3216
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "642fefb64c917e4bfd08481bb0727b0c" /tr "C:\ProgramData\642fefb64c917e4bfd08481bb0727b0c.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:5016

C:\ProgramData\642fefb64c917e4bfd08481bb0727b0c.exe
C:\ProgramData\642fefb64c917e4bfd08481bb0727b0c.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4332

C:\ProgramData\642fefb64c917e4bfd08481bb0727b0c.exe
C:\ProgramData\642fefb64c917e4bfd08481bb0727b0c.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4844

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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:\ProgramData\642fefb64c917e4bfd08481bb0727b0c.exe

Filesize
34KB

MD5
642fefb64c917e4bfd08481bb0727b0c

SHA1
17dad311c85853e4592769d15508d5fd562c8f21

SHA256
7c4df939396840b23f105b1bf45333f1f382adbbfc886f930e8e1f0384291e3a

SHA512
aa192797b25be45469e359602ba24837d967fc04e4cafc136998a4b7c39452a7227a481a7792e9af68bd81a5be8bf0e82cf304d50c9e9ba70a3d17a78edc86f1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\642fefb64c917e4bfd08481bb0727b0c.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
8a0407fd3b6a0e95729793e05880b558

SHA1
c704aff8e50b66cc5e7eaa51fe8fa41b0ef76ab6

SHA256
d641339de65c0d9ffd34a706fa9fcf408f2da61bdedf37fddad0ae9c8654e23e

SHA512
a8cf10aa0ad92bb7a6dc4da5d8445bd2482864612071f525b3d0da92357dad56c1a690f8755e2dc138c044387871cdf8a3af6493af8bfbb2e34214eb809a0f72

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
a7cc007980e419d553568a106210549a

SHA1
c03099706b75071f36c3962fcc60a22f197711e0

SHA256
a5735921fc72189c8bf577f3911486cf031708dc8d6bc764fe3e593c0a053165

SHA512
b9aaf29403c467daef80a1ae87478afc33b78f4e1ca16189557011bb83cf9b3e29a0f85c69fa209c45201fb28baca47d31756eee07b79c6312c506e8370f7666

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wbz53gwg.b0g.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1764-49-0x00007FFD7B110000-0x00007FFD7BBD1000-memory.dmp

Filesize
10.8MB

Download
memory/1764-1-0x00000000003E0000-0x00000000003EE000-memory.dmp

Filesize
56KB

Download
memory/1764-50-0x00007FFD7B113000-0x00007FFD7B115000-memory.dmp

Filesize
8KB

Download
memory/1764-51-0x00007FFD7B110000-0x00007FFD7BBD1000-memory.dmp

Filesize
10.8MB

Download
memory/1764-0-0x00007FFD7B113000-0x00007FFD7B115000-memory.dmp

Filesize
8KB

Download
memory/3824-16-0x00007FFD7B110000-0x00007FFD7BBD1000-memory.dmp

Filesize
10.8MB

Download
memory/3824-17-0x00007FFD7B110000-0x00007FFD7BBD1000-memory.dmp

Filesize
10.8MB

Download
memory/3824-2-0x000001824D6A0000-0x000001824D6C2000-memory.dmp

Filesize
136KB

Download
memory/3824-13-0x00007FFD7B110000-0x00007FFD7BBD1000-memory.dmp

Filesize
10.8MB

Download
memory/3824-12-0x00007FFD7B110000-0x00007FFD7BBD1000-memory.dmp

Filesize
10.8MB

Download