xworm | 667cb510540d8e7a6cd30007d30a8ca11110dde57bd03d2cbf87ca6b7868bdb9

Analysis

max time kernel
127s
max time network
148s
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, 06:18

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General

Target

eff37c0a73a6e26dacdcb0ed3001e2c5.exe
Size

36KB
MD5

eff37c0a73a6e26dacdcb0ed3001e2c5
SHA1

39497770cf0aab8b77e4fa9f6282002051bfe347
SHA256

7c64fb861dc56d82df0f3915492c0614624999cf9ec72a42f957e986dd628639
SHA512

fdc3de44ca49627120f2d349804b3453877f705b4bfad8dfaeb52fcce6770a04628d69fc6d63c8c4ebffdfcf422db6ab221c47c29c17affaac37403db53ded71
SSDEEP

768:W65+GilKzo6tIpmAmOe6W4oJ5Fyw99Sv6KO/hky4VR:Wu+Gbzo6t9Au6GTFr99G6KO/yjR

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

spring-ieee.gl.at.ply.gg:5538

Mutex

4RMfQ1QkxZtuqhyG

Attributes

Install_directory
%AppData%
install_file
Windows Defender.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral32/memory/860-1-0x0000000000F80000-0x0000000000F90000-memory.dmp	family_xworm
behavioral32/files/0x001200000002404a-59.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 4 IoCs

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

execution

PowerShell

T1059.001

pid	Process
5892	powershell.exe
4664	powershell.exe
4228	powershell.exe
3416	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-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\International\Geo\Nation	eff37c0a73a6e26dacdcb0ed3001e2c5.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Defender.lnk	eff37c0a73a6e26dacdcb0ed3001e2c5.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Defender.lnk	eff37c0a73a6e26dacdcb0ed3001e2c5.exe

Executes dropped EXE 2 IoCs

pid	Process
5420	Windows Defender.exe
4020	Windows Defender.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-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Defender = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Defender.exe"	eff37c0a73a6e26dacdcb0ed3001e2c5.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
3824	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4664	powershell.exe
4664	powershell.exe
4228	powershell.exe
4228	powershell.exe
3416	powershell.exe
3416	powershell.exe
5892	powershell.exe
5892	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	860	eff37c0a73a6e26dacdcb0ed3001e2c5.exe
Token: SeDebugPrivilege	4664	powershell.exe
Token: SeDebugPrivilege	4228	powershell.exe
Token: SeDebugPrivilege	3416	powershell.exe
Token: SeDebugPrivilege	5892	powershell.exe
Token: SeDebugPrivilege	860	eff37c0a73a6e26dacdcb0ed3001e2c5.exe
Token: SeDebugPrivilege	5420	Windows Defender.exe
Token: SeDebugPrivilege	4020	Windows Defender.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 860 wrote to memory of 4664	860	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	88
PID 860 wrote to memory of 4664	860	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	88
PID 860 wrote to memory of 4228	860	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	92
PID 860 wrote to memory of 4228	860	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	92
PID 860 wrote to memory of 3416	860	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	94
PID 860 wrote to memory of 3416	860	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	94
PID 860 wrote to memory of 5892	860	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	96
PID 860 wrote to memory of 5892	860	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	96
PID 860 wrote to memory of 3824	860	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	98
PID 860 wrote to memory of 3824	860	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	98

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\eff37c0a73a6e26dacdcb0ed3001e2c5.exe
"C:\Users\Admin\AppData\Local\Temp\eff37c0a73a6e26dacdcb0ed3001e2c5.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:860
- 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\eff37c0a73a6e26dacdcb0ed3001e2c5.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4664
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'eff37c0a73a6e26dacdcb0ed3001e2c5.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4228
- 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\Windows Defender.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3416
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Windows Defender.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5892
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Windows Defender" /tr "C:\Users\Admin\AppData\Roaming\Windows Defender.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3824

C:\Users\Admin\AppData\Roaming\Windows Defender.exe
"C:\Users\Admin\AppData\Roaming\Windows Defender.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5420

C:\Users\Admin\AppData\Roaming\Windows Defender.exe
"C:\Users\Admin\AppData\Roaming\Windows Defender.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4020

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:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Windows Defender.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
b1761516efb31557634d783c4ba6c78a

SHA1
2e1cb494796983fab11ac5f1630940e1ced086f0

SHA256
ad4681b1a04a894525509b5614891dd373c06da7f971296b6adb5d69ddf7b5b9

SHA512
42c93285e870463dd10c8f3eca15fe83b8e6c0a2231f67e3c3d0d257044e4b035a09be64680558aa03bf8daafcbf8824550625d74cbd6ee95ca8a31bca5b6c0e

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

Filesize
944B

MD5
9aae72a1127f0ec4a0d810002a1137e7

SHA1
3d315b540ef6e41108acd452bad545eb2dc9268e

SHA256
794cb33991842beb29967f2b81530665a31f2a5b16d2e1d3105a2b00f983de4b

SHA512
d039babed0e72d7c0cf7bc40aa4ffa9fae1371fd3df6e7bf54fb819a7bd3aa4665dbb9f0337984d61842c03695d8b179f112c08cbf8e57f12aa457ea5d019bb1

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

Filesize
944B

MD5
04f1d68afbed6b13399edfae1e9b1472

SHA1
8bfdcb687a995e4a63a8c32df2c66dc89f91a8b0

SHA256
f358f33a42122e97c489fad7bbc8beab2eb42d42e4ec7fce0dd61fe6d8c0b8de

SHA512
30c5e72a8134992094d937d2588f7a503b1d6407d11afe0265b7c8b0ce14071925e5caed13fc4f9c28705df4c7aed3601f81b007048b148af274d7784aa5fb75

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zxxf5fie.4hv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Windows Defender.exe

Filesize
36KB

MD5
eff37c0a73a6e26dacdcb0ed3001e2c5

SHA1
39497770cf0aab8b77e4fa9f6282002051bfe347

SHA256
7c64fb861dc56d82df0f3915492c0614624999cf9ec72a42f957e986dd628639

SHA512
fdc3de44ca49627120f2d349804b3453877f705b4bfad8dfaeb52fcce6770a04628d69fc6d63c8c4ebffdfcf422db6ab221c47c29c17affaac37403db53ded71

Download Submit
memory/860-56-0x00007FFC495B0000-0x00007FFC4A071000-memory.dmp

Filesize
10.8MB

Download
memory/860-1-0x0000000000F80000-0x0000000000F90000-memory.dmp

Filesize
64KB

Download
memory/860-57-0x00007FFC495B3000-0x00007FFC495B5000-memory.dmp

Filesize
8KB

Download
memory/860-58-0x00007FFC495B0000-0x00007FFC4A071000-memory.dmp

Filesize
10.8MB

Download
memory/860-0-0x00007FFC495B3000-0x00007FFC495B5000-memory.dmp

Filesize
8KB

Download
memory/4664-17-0x00007FFC495B0000-0x00007FFC4A071000-memory.dmp

Filesize
10.8MB

Download
memory/4664-16-0x00007FFC495B0000-0x00007FFC4A071000-memory.dmp

Filesize
10.8MB

Download
memory/4664-13-0x00007FFC495B0000-0x00007FFC4A071000-memory.dmp

Filesize
10.8MB

Download
memory/4664-12-0x00007FFC495B0000-0x00007FFC4A071000-memory.dmp

Filesize
10.8MB

Download
memory/4664-2-0x0000017FF55F0000-0x0000017FF5612000-memory.dmp

Filesize
136KB

Download