xworm | fde50f0142a28aa4729653fd6d20fe24444b4de78db287e6257377e617d4ffeb

Analysis

max time kernel
150s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
05/03/2025, 20:52

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General

Target

injector.exe
Size

9.7MB
MD5

86a51d640ea68877541d015596110871
SHA1

9ba1687ba37d28db708b9a458350b646f7f6d1ec
SHA256

fde50f0142a28aa4729653fd6d20fe24444b4de78db287e6257377e617d4ffeb
SHA512

78184bf183807df518449ed5a6e38c3668c645bd9fa22cc9c2adb8786e1a5eb435e43ab5c551b998947ea76f03499c599e9428d7f6ccbb72a912f356b884d8b8
SSDEEP

196608:q9Fi1rHBpQ8du9iLK8KyUmydMdRqg3fDsu4/f8QeN:nhndhPPqWboi

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Attributes

Install_directory
%Public%
install_file
svchost.exe
pastebin_url
https://pastebin.com/raw/kADeGNZE

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023cbe-14.dat	family_xworm
behavioral2/memory/4244-22-0x0000000000020000-0x0000000000038000-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
1812	powershell.exe
2420	powershell.exe
2972	powershell.exe
5144	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-100612193-3312047696-905266872-1000\Control Panel\International\Geo\Nation	injector.exe
Key value queried	\REGISTRY\USER\S-1-5-21-100612193-3312047696-905266872-1000\Control Panel\International\Geo\Nation	COM Surrogate.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 5 IoCs

pid	Process
5928	injector.exe
4244	COM Surrogate.exe
4816	svchost.exe
1740	svchost.exe
3428	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-1-5-21-100612193-3312047696-905266872-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Public\\svchost.exe"	COM Surrogate.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
25	pastebin.com
26	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
1616	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe
5928	injector.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	4244	COM Surrogate.exe
Token: SeDebugPrivilege	1812	powershell.exe
Token: SeDebugPrivilege	2420	powershell.exe
Token: SeDebugPrivilege	2972	powershell.exe
Token: SeDebugPrivilege	5144	powershell.exe
Token: SeDebugPrivilege	4244	COM Surrogate.exe
Token: SeDebugPrivilege	4816	svchost.exe
Token: SeDebugPrivilege	1740	svchost.exe
Token: SeDebugPrivilege	3428	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4244	COM Surrogate.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1932 wrote to memory of 5928	1932	injector.exe	88
PID 1932 wrote to memory of 5928	1932	injector.exe	88
PID 1932 wrote to memory of 4244	1932	injector.exe	90
PID 1932 wrote to memory of 4244	1932	injector.exe	90
PID 4244 wrote to memory of 1812	4244	COM Surrogate.exe	93
PID 4244 wrote to memory of 1812	4244	COM Surrogate.exe	93
PID 4244 wrote to memory of 2420	4244	COM Surrogate.exe	95
PID 4244 wrote to memory of 2420	4244	COM Surrogate.exe	95
PID 4244 wrote to memory of 2972	4244	COM Surrogate.exe	97
PID 4244 wrote to memory of 2972	4244	COM Surrogate.exe	97
PID 4244 wrote to memory of 5144	4244	COM Surrogate.exe	99
PID 4244 wrote to memory of 5144	4244	COM Surrogate.exe	99
PID 4244 wrote to memory of 1616	4244	COM Surrogate.exe	103
PID 4244 wrote to memory of 1616	4244	COM Surrogate.exe	103

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\injector.exe
"C:\Users\Admin\AppData\Local\Temp\injector.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1932
- C:\Users\Admin\AppData\Local\injector.exe
  "C:\Users\Admin\AppData\Local\injector.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:5928
- C:\Users\Admin\AppData\Local\COM Surrogate.exe
  "C:\Users\Admin\AppData\Local\COM Surrogate.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4244
- - 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\COM Surrogate.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of AdjustPrivilegeToken
    PID:1812
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'COM Surrogate.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of AdjustPrivilegeToken
    PID:2420
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Public\svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of AdjustPrivilegeToken
    PID:2972
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of AdjustPrivilegeToken
    PID:5144
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Public\svchost.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1616

C:\Users\Public\svchost.exe
C:\Users\Public\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4816

C:\Users\Public\svchost.exe
C:\Users\Public\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1740

C:\Users\Public\svchost.exe
C:\Users\Public\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3428

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\COM Surrogate.exe

Filesize
69KB

MD5
533f3b108a18d4bdcb42329a42e740c6

SHA1
fe59ee9912580e99c127205ed59da725495dd037

SHA256
de7574564048511af92e161a95921b4295e013f0f9603895d2eaefb4aec005ac

SHA512
1936e292e6ffa20497c2944f4aa2d05e76e0a0a52cf836b24f8b1901daa8025ff95481f222ec453bacbcbad97389ffd69ab84cdcb1b4c636aecdbcead50663a2

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\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
62623d22bd9e037191765d5083ce16a3

SHA1
4a07da6872672f715a4780513d95ed8ddeefd259

SHA256
95d79fd575bbd21540e378fcbc1cd00d16f51af62ce15bae7080bb72c24e2010

SHA512
9a448b7a0d867466c2ea04ab84d2a9485d5fd20ab53b2b854f491831ee3f1d781b94d2635f7b0b35cb9f2d373cd52c67570879a56a42ed66bc9db06962ed4992

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

Filesize
944B

MD5
a83ce2908066654f712d1858746bc3c4

SHA1
14887f0537ce076cdc91801fb5fa584b25f1089f

SHA256
7c32ae0eaa4fef7404ce708744116ab8ea17d9575bbb3b06eb41a443f963456f

SHA512
991b20116815c7db3497d0ede9a216c7b78795e65f898847ffec513692f0c24d146a123725d14a2e1e3efb5744a626dd025a364f2f55f581e21640794a0cc551

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

Filesize
944B

MD5
15dde0683cd1ca19785d7262f554ba93

SHA1
d039c577e438546d10ac64837b05da480d06bf69

SHA256
d6fa39eab7ee36f44dc3f9f2839d098433db95c1eba924e4bcf4e5c0d268d961

SHA512
57c0e1b87bc1c136f0d39f3ce64bb8f8274a0491e4ca6e45e5c7f9070aa9d9370c6f590ce37cd600b252df2638d870205249a514c43245ca7ed49017024a4672

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3bckxnip.tuu.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
40KB

MD5
525f01625963a71151e81f8b20ebb31e

SHA1
b7930fddd0d56ddbcf5fec090e66186833521a5e

SHA256
0d75a2406b1485056c7371bb94ea642dd61b6dc967a27d1a8f3d065857a74d4f

SHA512
f8986dacf8896512f4b313de4eb2d8fa3f4a4de1aa4e59d1d161dcbd8d632f4354608826c332fc4d042c665fc64c4f6ce29cd2382d7d611ed5e8c9a67882bc91

Download Submit
memory/1812-31-0x000002BAD19D0000-0x000002BAD19F2000-memory.dmp

Filesize
136KB

Download
memory/1932-1-0x00000000002B0000-0x0000000000C6A000-memory.dmp

Filesize
9.7MB

Download
memory/1932-0-0x00007FFA68103000-0x00007FFA68105000-memory.dmp

Filesize
8KB

Download
memory/4244-22-0x0000000000020000-0x0000000000038000-memory.dmp

Filesize
96KB

Download
memory/4244-75-0x00007FFA68100000-0x00007FFA68BC1000-memory.dmp

Filesize
10.8MB

Download
memory/4244-76-0x00007FFA68100000-0x00007FFA68BC1000-memory.dmp

Filesize
10.8MB

Download
memory/4244-77-0x00007FFA68100000-0x00007FFA68BC1000-memory.dmp

Filesize
10.8MB

Download
memory/4244-24-0x00007FFA68100000-0x00007FFA68BC1000-memory.dmp

Filesize
10.8MB

Download