xworm | 583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6

Analysis

max time kernel
149s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 00:00

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General

Target

583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe
Size

102KB
MD5

15d7a58db8aa9950ce53375b2fde5f72
SHA1

a403f7ab69cf2d13cb54f37caa53a69b29815813
SHA256

583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6
SHA512

adedfeb38a0c271719214ba7f849867f369567238c8c47679f8a322877de5ad6f18027d73df38e526da05cd0d667cf9ba7af124c8228b5335631f30a2026ae00
SSDEEP

3072:n+AbTnyDZW7Dd4sKmrqwNdYcILP4k3O1uo:TPyNaxKcb2LP4k3O

Score

10^/10

xworm discovery execution persistence rat trojan

Malware Config

Extracted

Family

xworm

192.168.100.13:7000

Attributes

Install_directory
%AppData%
install_file
RuntimeBroker.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1724-4-0x0000000005750000-0x0000000005768000-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
2840	powershell.exe
380	powershell.exe
1616	powershell.exe
4100	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	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RuntimeBroker.lnk	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RuntimeBroker.lnk	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe

Executes dropped EXE 2 IoCs

pid	Process
1780	RuntimeBroker.exe
1732	RuntimeBroker.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\RuntimeBroker = "C:\\Users\\Admin\\AppData\\Roaming\\RuntimeBroker.exe"	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RuntimeBroker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RuntimeBroker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

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
1328	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2840	powershell.exe
2840	powershell.exe
380	powershell.exe
380	powershell.exe
1616	powershell.exe
1616	powershell.exe
4100	powershell.exe
4100	powershell.exe
1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe
Token: SeDebugPrivilege	2840	powershell.exe
Token: SeDebugPrivilege	380	powershell.exe
Token: SeDebugPrivilege	1616	powershell.exe
Token: SeDebugPrivilege	4100	powershell.exe
Token: SeDebugPrivilege	1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe
Token: SeDebugPrivilege	1780	RuntimeBroker.exe
Token: SeDebugPrivilege	1732	RuntimeBroker.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 2840	1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe	84
PID 1724 wrote to memory of 2840	1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe	84
PID 1724 wrote to memory of 2840	1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe	84
PID 1724 wrote to memory of 380	1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe	86
PID 1724 wrote to memory of 380	1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe	86
PID 1724 wrote to memory of 380	1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe	86
PID 1724 wrote to memory of 1616	1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe	88
PID 1724 wrote to memory of 1616	1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe	88
PID 1724 wrote to memory of 1616	1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe	88
PID 1724 wrote to memory of 4100	1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe	90
PID 1724 wrote to memory of 4100	1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe	90
PID 1724 wrote to memory of 4100	1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe	90
PID 1724 wrote to memory of 1328	1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe	92
PID 1724 wrote to memory of 1328	1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe	92
PID 1724 wrote to memory of 1328	1724	583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe	92

C:\Users\Admin\AppData\Local\Temp\583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe
"C:\Users\Admin\AppData\Local\Temp\583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2840
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:380
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1616
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'RuntimeBroker.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4100
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "RuntimeBroker" /tr "C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1328

C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe
C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1780

C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe
C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1732

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RuntimeBroker.exe.log

Filesize
522B

MD5
8334a471a4b492ece225b471b8ad2fc8

SHA1
1cb24640f32d23e8f7800bd0511b7b9c3011d992

SHA256
5612afe347d8549cc95a0c710602bcc7d7b224361b613c0a6ba362092300c169

SHA512
56ae2e83355c331b00d782797f5664c2f373eac240e811aab978732503ae05eb20b08730d2427ed90efa5a706d71b42b57153596a45a6b5592e3dd9128b81c36

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
18KB

MD5
ec0afff101399f2ef03a6638eb8fc020

SHA1
e9a9b9516fd79fdc788eaacfc06746ccff466c17

SHA256
4972ebb03140e3fb93e38d9bb0d9ca6baa4df70a87f1477d51f80bf553148e8d

SHA512
eb2fea578370a8fcce2442257076f885a6c9caf69a0bfed4e9adaa29c48294919a22ebcd4bfe4b002b923fefcf4ebe459c461189688012db7056e19d8330805a

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

Filesize
18KB

MD5
3a27128cfdfabd6abbfbd33303e92a36

SHA1
e41ff1f5e917411bbb64bde0af9b4d84ff2519c3

SHA256
57e2ba51f7d255384b4e461c6f2ed44d14adab02a9dfec1707918de366ffa328

SHA512
74091141d6d960059603b40256bd6062963d8278153455df0c1e1681aeb8680ea1b1d8aeca1c305ec1fef0f47c8519624a53112bbe421aab403eeadb5cfceb5f

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

Filesize
18KB

MD5
19aa067041b2a6b4d49911a85e47ba6a

SHA1
6ac27dbbdb38363570a16958323944ece3f73d11

SHA256
da75438159591d70be15ffb3e1f526f447b74b3c43999ecd9836f7406018c803

SHA512
b5ffe02f7352a6ced8d57c2f25f3f25f6d9a793c8852bec2361a1d98caaaf26121fe51704e31c64ab2fa4060454907f74a91c7e60a3b7e1cd32839b0846c2583

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4l5vwzeq.pmd.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe

Filesize
102KB

MD5
15d7a58db8aa9950ce53375b2fde5f72

SHA1
a403f7ab69cf2d13cb54f37caa53a69b29815813

SHA256
583df026cb00262ddb8bbe49d7bf22112113a5207b9797d11a2654c8aa7924e6

SHA512
adedfeb38a0c271719214ba7f849867f369567238c8c47679f8a322877de5ad6f18027d73df38e526da05cd0d667cf9ba7af124c8228b5335631f30a2026ae00

Download Submit
memory/380-70-0x0000000070240000-0x000000007028C000-memory.dmp

Filesize
304KB

Download
memory/380-81-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/380-56-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/380-57-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/380-58-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/380-64-0x0000000005480000-0x00000000057D4000-memory.dmp

Filesize
3.3MB

Download
memory/1616-90-0x00000000061B0000-0x0000000006504000-memory.dmp

Filesize
3.3MB

Download
memory/1616-93-0x0000000070240000-0x000000007028C000-memory.dmp

Filesize
304KB

Download
memory/1724-3-0x000000000ADC0000-0x000000000AE5C000-memory.dmp

Filesize
624KB

Download
memory/1724-132-0x000000000C920000-0x000000000C92A000-memory.dmp

Filesize
40KB

Download
memory/1724-4-0x0000000005750000-0x0000000005768000-memory.dmp

Filesize
96KB

Download
memory/1724-43-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/1724-2-0x0000000001780000-0x0000000001786000-memory.dmp

Filesize
24KB

Download
memory/1724-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/1724-5-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1724-130-0x000000000C240000-0x000000000C7E4000-memory.dmp

Filesize
5.6MB

Download
memory/1724-131-0x000000000C990000-0x000000000CA22000-memory.dmp

Filesize
584KB

Download
memory/1724-1-0x0000000000DA0000-0x0000000000DC2000-memory.dmp

Filesize
136KB

Download
memory/1724-50-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2840-12-0x0000000005930000-0x0000000005996000-memory.dmp

Filesize
408KB

Download
memory/2840-37-0x0000000006520000-0x000000000653E000-memory.dmp

Filesize
120KB

Download
memory/2840-45-0x0000000007510000-0x00000000075A6000-memory.dmp

Filesize
600KB

Download
memory/2840-46-0x0000000007490000-0x00000000074A1000-memory.dmp

Filesize
68KB

Download
memory/2840-47-0x00000000074C0000-0x00000000074CE000-memory.dmp

Filesize
56KB

Download
memory/2840-48-0x00000000074D0000-0x00000000074E4000-memory.dmp

Filesize
80KB

Download
memory/2840-42-0x0000000007290000-0x00000000072AA000-memory.dmp

Filesize
104KB

Download
memory/2840-49-0x00000000075D0000-0x00000000075EA000-memory.dmp

Filesize
104KB

Download
memory/2840-51-0x00000000075B0000-0x00000000075B8000-memory.dmp

Filesize
32KB

Download
memory/2840-54-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2840-41-0x00000000078D0000-0x0000000007F4A000-memory.dmp

Filesize
6.5MB

Download
memory/2840-40-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2840-39-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2840-38-0x0000000006F70000-0x0000000007013000-memory.dmp

Filesize
652KB

Download
memory/2840-36-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2840-44-0x0000000007300000-0x000000000730A000-memory.dmp

Filesize
40KB

Download
memory/2840-26-0x0000000070240000-0x000000007028C000-memory.dmp

Filesize
304KB

Download
memory/2840-25-0x0000000006F30000-0x0000000006F62000-memory.dmp

Filesize
200KB

Download
memory/2840-24-0x00000000061F0000-0x000000000623C000-memory.dmp

Filesize
304KB

Download
memory/2840-23-0x0000000005F60000-0x0000000005F7E000-memory.dmp

Filesize
120KB

Download
memory/2840-22-0x0000000005AA0000-0x0000000005DF4000-memory.dmp

Filesize
3.3MB

Download
memory/2840-6-0x00000000049B0000-0x00000000049E6000-memory.dmp

Filesize
216KB

Download
memory/2840-11-0x00000000058C0000-0x0000000005926000-memory.dmp

Filesize
408KB

Download
memory/2840-7-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2840-10-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2840-9-0x0000000004FC0000-0x0000000004FE2000-memory.dmp

Filesize
136KB

Download
memory/2840-8-0x0000000005160000-0x0000000005788000-memory.dmp

Filesize
6.2MB

Download
memory/4100-115-0x0000000070240000-0x000000007028C000-memory.dmp

Filesize
304KB

Download
memory/4100-110-0x0000000005760000-0x0000000005AB4000-memory.dmp

Filesize
3.3MB

Download