xworm | 5d8c53e451c55ce6969cfe254e0c22a3c48915c1400c66fc9dc806d7ad824f24

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-01-2025 01:12

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General

Target

rat test xworm.exe
Size

65KB
MD5

fbe7f61c52a1754815d5da441a4fb469
SHA1

5540bfc30a9b05f1972d896283bd1f107db18987
SHA256

5d8c53e451c55ce6969cfe254e0c22a3c48915c1400c66fc9dc806d7ad824f24
SHA512

e524006b40df8d3a677f20928d6fb5f31d08197d351bcfcdb30bd08cf041500794998728397119775d584f4f3f4359e7d881deea4aec9f9cc9add524454d4635
SSDEEP

1536:axvYQ2kEC1wXbFDGTRwZrt6UxKQO7U/1iI:ahYeLKbRTLO7U95

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

127.0.0.1:21252

land-long.gl.at.ply.gg:21252

Attributes

Install_directory
%Userprofile%
install_file
svchost.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/1656-1-0x0000000000B60000-0x0000000000B76000-memory.dmp	family_xworm
behavioral2/files/0x000200000001e75d-58.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
4312	powershell.exe
4688	powershell.exe
404	powershell.exe
4760	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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	rat test xworm.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 3 IoCs

pid	Process
532	svchost.exe
2516	cxkxlq.exe
4568	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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\svchost.exe"	rat test xworm.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
15	ip-api.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
1152	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4312	powershell.exe
4312	powershell.exe
4688	powershell.exe
4688	powershell.exe
404	powershell.exe
404	powershell.exe
4760	powershell.exe
4760	powershell.exe
1656	rat test xworm.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe
2516	cxkxlq.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	1656	rat test xworm.exe
Token: SeDebugPrivilege	4312	powershell.exe
Token: SeDebugPrivilege	4688	powershell.exe
Token: SeDebugPrivilege	404	powershell.exe
Token: SeDebugPrivilege	4760	powershell.exe
Token: SeDebugPrivilege	1656	rat test xworm.exe
Token: SeDebugPrivilege	532	svchost.exe
Token: SeDebugPrivilege	2516	cxkxlq.exe
Token: 33	1076	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1076	AUDIODG.EXE
Token: SeDebugPrivilege	4568	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1656	rat test xworm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1656 wrote to memory of 4312	1656	rat test xworm.exe	87
PID 1656 wrote to memory of 4312	1656	rat test xworm.exe	87
PID 1656 wrote to memory of 4688	1656	rat test xworm.exe	89
PID 1656 wrote to memory of 4688	1656	rat test xworm.exe	89
PID 1656 wrote to memory of 404	1656	rat test xworm.exe	91
PID 1656 wrote to memory of 404	1656	rat test xworm.exe	91
PID 1656 wrote to memory of 4760	1656	rat test xworm.exe	93
PID 1656 wrote to memory of 4760	1656	rat test xworm.exe	93
PID 1656 wrote to memory of 1152	1656	rat test xworm.exe	95
PID 1656 wrote to memory of 1152	1656	rat test xworm.exe	95
PID 1656 wrote to memory of 2516	1656	rat test xworm.exe	112
PID 1656 wrote to memory of 2516	1656	rat test xworm.exe	112

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\rat test xworm.exe
"C:\Users\Admin\AppData\Local\Temp\rat test xworm.exe"
1⤵
- Checks computer location settings
- 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:1656
- 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\rat test xworm.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4312
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'rat test xworm.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4688
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:404
- 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:4760
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1152
- C:\Users\Admin\AppData\Local\Temp\cxkxlq.exe
  "C:\Users\Admin\AppData\Local\Temp\cxkxlq.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2516

C:\Users\Admin\svchost.exe
C:\Users\Admin\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:532

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x500 0x498
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1076

C:\Users\Admin\svchost.exe
C:\Users\Admin\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4568

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\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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
944B

MD5
781d769dbd7745d981525a9f914325b0

SHA1
3ff4ddf9cc989137738c6566fa0d1fb52163a981

SHA256
9110dd1b68457e81cd1d0cc5649725fbcde190f2b9e8e3923706d4040dd1498e

SHA512
b547e6be59fa4975c92d9164b5c2b906d9d14dbb6f826862f92d4e49f83955867658bfb0715f0c21b6a7a380b6b653ea466b702d98777ea16e13600580b2c81c

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

Filesize
944B

MD5
fd98baf5a9c30d41317663898985593b

SHA1
ea300b99f723d2429d75a6c40e0838bf60f17aad

SHA256
9d97a5bbc88fdcceac25f293383f7e5ce242675460ffbfb2ee9090870c034e96

SHA512
bf4dbbd671b5d7afb326622a7c781f150860294d3dba7160330046c258c84a15981c70e50d84dc7faaa7cc8b8c90bf8df818b3f2d3806a8a3671dfe5e38fe7b0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_regkrkat.dgn.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\cxkxlq.exe

Filesize
2.6MB

MD5
cea62525d913631b2cccc7c66dab082d

SHA1
ca690ebfd814b9d7575333a7df13f153e560772c

SHA256
4eb1b9a0a0d6dd865f705ded4be0860d9c34ddc2afe0477febbda9ba55a96d9f

SHA512
904354ac776a2b30c33f17995643f9e524de0d24cee09a3fdeeabba558a2e523708e926fb483795601d3066c78f139fbd62a36b3f1d41b33557d8131da1aab7a

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

Filesize
65KB

MD5
fbe7f61c52a1754815d5da441a4fb469

SHA1
5540bfc30a9b05f1972d896283bd1f107db18987

SHA256
5d8c53e451c55ce6969cfe254e0c22a3c48915c1400c66fc9dc806d7ad824f24

SHA512
e524006b40df8d3a677f20928d6fb5f31d08197d351bcfcdb30bd08cf041500794998728397119775d584f4f3f4359e7d881deea4aec9f9cc9add524454d4635

Download Submit
memory/1656-2-0x00007FF8470A0000-0x00007FF847B61000-memory.dmp

Filesize
10.8MB

Download
memory/1656-0-0x00007FF8470A3000-0x00007FF8470A5000-memory.dmp

Filesize
8KB

Download
memory/1656-74-0x000000001C300000-0x000000001C30C000-memory.dmp

Filesize
48KB

Download
memory/1656-1-0x0000000000B60000-0x0000000000B76000-memory.dmp

Filesize
88KB

Download
memory/1656-57-0x00007FF8470A0000-0x00007FF847B61000-memory.dmp

Filesize
10.8MB

Download
memory/2516-72-0x0000000000CC0000-0x0000000000F64000-memory.dmp

Filesize
2.6MB

Download
memory/4312-4-0x00007FF8470A0000-0x00007FF847B61000-memory.dmp

Filesize
10.8MB

Download
memory/4312-18-0x00007FF8470A0000-0x00007FF847B61000-memory.dmp

Filesize
10.8MB

Download
memory/4312-15-0x0000019D379E0000-0x0000019D37A02000-memory.dmp

Filesize
136KB

Download
memory/4312-5-0x00007FF8470A0000-0x00007FF847B61000-memory.dmp

Filesize
10.8MB

Download
memory/4312-3-0x00007FF8470A0000-0x00007FF847B61000-memory.dmp

Filesize
10.8MB

Download