xworm | b9cae0739fc6daee051551b3e1dfabd39db41c2996f3a905254a71def555ba36

Analysis

max time kernel
149s
max time network
152s
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, 06:25

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General

Target

5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe
Size

626KB
MD5

b675f5607efc77d45aac893264dd601c
SHA1

6d6d0a2f7bc9d1df99275894d9e455d70da689d1
SHA256

5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add
SHA512

5e74b0c975173351c0c9b4cd49283adfd57e38b768dcbf03f82d30c5f9c1ada0b6e70b97d26a6787bd15f43ae802d5b2f4394123bf4445378a7351dd335b5211
SSDEEP

12288:wTAALVma8Vk2WbYq5qL7Lp4SKpRUzfBI4xa7iKX:mVma72z9KY7BID7iK

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

https://pastebin.com/raw/DfF7GpwD:123456789

Attributes

Install_directory
%LocalAppData%
install_file
svchost.exe
pastebin_url
https://pastebin.com/raw/DfF7GpwD

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral8/memory/3744-1-0x0000000000920000-0x00000000009C2000-memory.dmp	family_xworm
behavioral8/files/0x000b000000024238-60.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
5256	powershell.exe
4568	powershell.exe
2716	powershell.exe
4420	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	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe

Executes dropped EXE 2 IoCs

pid	Process
2980	svchost.exe
4844	svchost.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\svchost = "C:\\Users\\Admin\\AppData\\Local\\svchost.exe"	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 46 IoCs

Web Service

T1102

flow	ioc
89	pastebin.com
26	pastebin.com
27	pastebin.com
70	pastebin.com
72	pastebin.com
87	pastebin.com
39	pastebin.com
68	pastebin.com
106	pastebin.com
113	pastebin.com
36	pastebin.com
52	pastebin.com
91	pastebin.com
92	pastebin.com
95	pastebin.com
99	pastebin.com
101	pastebin.com
104	pastebin.com
88	pastebin.com
93	pastebin.com
71	pastebin.com
30	pastebin.com
37	pastebin.com
38	pastebin.com
40	pastebin.com
73	pastebin.com
69	pastebin.com
74	pastebin.com
76	pastebin.com
90	pastebin.com
102	pastebin.com
105	pastebin.com
107	pastebin.com
108	pastebin.com
29	pastebin.com
75	pastebin.com
86	pastebin.com
110	pastebin.com
111	pastebin.com
112	pastebin.com
114	pastebin.com
85	pastebin.com
94	pastebin.com
96	pastebin.com
103	pastebin.com
109	pastebin.com

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
5580	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
5256	powershell.exe
5256	powershell.exe
4568	powershell.exe
4568	powershell.exe
2716	powershell.exe
2716	powershell.exe
4420	powershell.exe
4420	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	3744	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe
Token: SeDebugPrivilege	5256	powershell.exe
Token: SeDebugPrivilege	4568	powershell.exe
Token: SeDebugPrivilege	2716	powershell.exe
Token: SeDebugPrivilege	4420	powershell.exe
Token: SeDebugPrivilege	2980	svchost.exe
Token: SeDebugPrivilege	4844	svchost.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3744 wrote to memory of 5256	3744	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	88
PID 3744 wrote to memory of 5256	3744	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	88
PID 3744 wrote to memory of 4568	3744	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	92
PID 3744 wrote to memory of 4568	3744	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	92
PID 3744 wrote to memory of 2716	3744	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	95
PID 3744 wrote to memory of 2716	3744	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	95
PID 3744 wrote to memory of 4420	3744	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	98
PID 3744 wrote to memory of 4420	3744	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	98
PID 3744 wrote to memory of 5580	3744	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	100
PID 3744 wrote to memory of 5580	3744	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	100

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\5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe
"C:\Users\Admin\AppData\Local\Temp\5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3744
- 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\5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5256
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4568
- 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\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2716
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4420
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Local\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:5580

C:\Users\Admin\AppData\Local\svchost.exe
C:\Users\Admin\AppData\Local\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2980

C:\Users\Admin\AppData\Local\svchost.exe
C:\Users\Admin\AppData\Local\svchost.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

Web Service

T1102

Exfiltration

Impact

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Downloads

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\CLR_v4.0\UsageLogs\svchost.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

Filesize
944B

MD5
d230e2e97704f9cc74439c51f1687c77

SHA1
900f3725386290db32227d09958968fcacce740a

SHA256
1294dc2197cdf3429384ef75726994b66d267ce2be233fca14ec9a18ff045d76

SHA512
d6dcaafe9b15e9566fcdf5561a9286a9164c453c05e81f5de30577f8541bf0c86318d7f5014d18ec0953c8eadf336db257d012a42e63d8e2c7e91c4ab3caeb81

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

Filesize
944B

MD5
83685d101174171875b4a603a6c2a35c

SHA1
37be24f7c4525e17fa18dbd004186be3a9209017

SHA256
0c557845aab1da497bbff0e8fbe65cabf4cb2804b97ba8ae8c695a528af70870

SHA512
005a97a8e07b1840abdcef86a7881fd9bdc8acbfdf3eafe1dceb6374060626d81d789e57d87ca4096a39e28d5cca00f8945edff0a747591691ae75873d2b3fb5

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

Filesize
944B

MD5
ef647504cf229a16d02de14a16241b90

SHA1
81480caca469857eb93c75d494828b81e124fda0

SHA256
47002672443e80410e55a0b6d683573ac27d70d803b57ee3c2818d1008669710

SHA512
a6d8c08c708eee6f7e700880ce79d2ba7cd0acbe8529d96e18f3e90ea1f3cf33fd801dd6eba6017cdd02769e968c48278c090c1deeac710124f79423cd862ee1

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lpypn10s.nfc.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\svchost.exe

Filesize
626KB

MD5
b675f5607efc77d45aac893264dd601c

SHA1
6d6d0a2f7bc9d1df99275894d9e455d70da689d1

SHA256
5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add

SHA512
5e74b0c975173351c0c9b4cd49283adfd57e38b768dcbf03f82d30c5f9c1ada0b6e70b97d26a6787bd15f43ae802d5b2f4394123bf4445378a7351dd335b5211

Download Submit
memory/3744-56-0x00007FFAA3DF0000-0x00007FFAA48B1000-memory.dmp

Filesize
10.8MB

Download
memory/3744-0-0x00007FFAA3DF3000-0x00007FFAA3DF5000-memory.dmp

Filesize
8KB

Download
memory/3744-57-0x00007FFAA3DF3000-0x00007FFAA3DF5000-memory.dmp

Filesize
8KB

Download
memory/3744-58-0x00007FFAA3DF0000-0x00007FFAA48B1000-memory.dmp

Filesize
10.8MB

Download
memory/3744-1-0x0000000000920000-0x00000000009C2000-memory.dmp

Filesize
648KB

Download
memory/5256-17-0x00007FFAA3DF0000-0x00007FFAA48B1000-memory.dmp

Filesize
10.8MB

Download
memory/5256-14-0x00007FFAA3DF0000-0x00007FFAA48B1000-memory.dmp

Filesize
10.8MB

Download
memory/5256-13-0x00007FFAA3DF0000-0x00007FFAA48B1000-memory.dmp

Filesize
10.8MB

Download
memory/5256-12-0x00007FFAA3DF0000-0x00007FFAA48B1000-memory.dmp

Filesize
10.8MB

Download
memory/5256-7-0x000001F4BACC0000-0x000001F4BACE2000-memory.dmp

Filesize
136KB

Download