xworm | e9dad4f37bdc3e80130637b3b5de29bf78e376cb8b8894a27ab4b727d60dff5b

General

Target

svchost.exe
Size

69KB
MD5

3d0f60a06bfead1b3ce9847dbd9ce7e7
SHA1

e79eff9033d46736a876ab3379038a592d8e210f
SHA256

e9dad4f37bdc3e80130637b3b5de29bf78e376cb8b8894a27ab4b727d60dff5b
SHA512

c0eb730f283df54c2f061da019b57879e29b8f5549309d71630fcb541be894d47eab3943d011363dd0a9bd93e07962411454d9e88e6f5d61a4e0babfde62fc08
SSDEEP

768:rOwHIR8aFGww4GZAAjGnlb0fl70xSm9WlYb03o46XeLmsR263Z8O71h80XZBSq:izR845VGaQoHdb03o46uN06OO71Roq

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

inn-ht.gl.at.ply.gg:60031

Attributes

Install_directory
%AppData%
install_file
svchost.exe

Signatures

Detect Xworm Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2164-1-0x0000000000380000-0x0000000000398000-memory.dmp	family_xworm
C:\Users\Admin\AppData\Roaming\svchost.exe	family_xworm
behavioral1/memory/1248-36-0x0000000000310000-0x0000000000328000-memory.dmp	family_xworm
behavioral1/memory/2008-39-0x0000000000EA0000-0x0000000000EB8000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid process

2720 powershell.exe
2456 powershell.exe
2752 powershell.exe
636 powershell.exe

pid	process
2720	powershell.exe
2456	powershell.exe
2752	powershell.exe
636	powershell.exe

Drops startup file 2 IoCs

Processes:

svchost.exe

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

Executes dropped EXE 2 IoCs

Processes:

svchost.exesvchost.exe

pid process

1248 svchost.exe
2008 svchost.exe

pid	process
1248	svchost.exe
2008	svchost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	svchost.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.

Processes:

flow ioc

4 ip-api.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

2700 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exesvchost.exe

pid process

2720 powershell.exe
2752 powershell.exe
2456 powershell.exe
636 powershell.exe
2164 svchost.exe

flow	ioc
4	ip-api.com

pid	process
2700	schtasks.exe

pid	process
2720	powershell.exe
2752	powershell.exe
2456	powershell.exe
636	powershell.exe
2164	svchost.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

svchost.exepowershell.exepowershell.exepowershell.exepowershell.exesvchost.exesvchost.exe

description	pid	process
Token: SeDebugPrivilege	2164	svchost.exe
Token: SeDebugPrivilege	2720	powershell.exe
Token: SeDebugPrivilege	2752	powershell.exe
Token: SeDebugPrivilege	2456	powershell.exe
Token: SeDebugPrivilege	636	powershell.exe
Token: SeDebugPrivilege	2164	svchost.exe
Token: SeDebugPrivilege	1248	svchost.exe
Token: SeDebugPrivilege	2008	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

svchost.exe

pid process

2164 svchost.exe

pid	process
2164	svchost.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

svchost.exetaskeng.exe

description	pid	process	target process
PID 2164 wrote to memory of 2720	2164	svchost.exe	powershell.exe
PID 2164 wrote to memory of 2720	2164	svchost.exe	powershell.exe
PID 2164 wrote to memory of 2720	2164	svchost.exe	powershell.exe
PID 2164 wrote to memory of 2752	2164	svchost.exe	powershell.exe
PID 2164 wrote to memory of 2752	2164	svchost.exe	powershell.exe
PID 2164 wrote to memory of 2752	2164	svchost.exe	powershell.exe
PID 2164 wrote to memory of 2456	2164	svchost.exe	powershell.exe
PID 2164 wrote to memory of 2456	2164	svchost.exe	powershell.exe
PID 2164 wrote to memory of 2456	2164	svchost.exe	powershell.exe
PID 2164 wrote to memory of 636	2164	svchost.exe	powershell.exe
PID 2164 wrote to memory of 636	2164	svchost.exe	powershell.exe
PID 2164 wrote to memory of 636	2164	svchost.exe	powershell.exe
PID 2164 wrote to memory of 2700	2164	svchost.exe	schtasks.exe
PID 2164 wrote to memory of 2700	2164	svchost.exe	schtasks.exe
PID 2164 wrote to memory of 2700	2164	svchost.exe	schtasks.exe
PID 2788 wrote to memory of 1248	2788	taskeng.exe	svchost.exe
PID 2788 wrote to memory of 1248	2788	taskeng.exe	svchost.exe
PID 2788 wrote to memory of 1248	2788	taskeng.exe	svchost.exe
PID 2788 wrote to memory of 2008	2788	taskeng.exe	svchost.exe
PID 2788 wrote to memory of 2008	2788	taskeng.exe	svchost.exe
PID 2788 wrote to memory of 2008	2788	taskeng.exe	svchost.exe

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\svchost.exe
"C:\Users\Admin\AppData\Local\Temp\svchost.exe"
1⤵
- 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:2164

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\svchost.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2720

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:2752

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\svchost.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2456

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:636

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\Roaming\svchost.exe"
2⤵
- Creates scheduled task(s)
PID:2700

C:\Windows\system32\taskeng.exe
taskeng.exe {76CDC7B0-21ED-4103-8C65-BF2D481D77AE} S-1-5-21-3627615824-4061627003-3019543961-1000:SCFGBRBT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2788

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1248

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2008

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\F72HULDSFQV6WHHAZ1NY.temp
Filesize
7KB

MD5
ca13b5d13c1e88f2b5bf42d9845a0d3b

SHA1
01f093f08828142c35f6d7f67da002f1afdf1d5d

SHA256
88878380854077fed5e0f4bf0d0117f67e1066ad41a8333135ee3cc259de3ec2

SHA512
b4ec2c950b3cbe3164e646bf7d022f76561464ba90ea6686c9e3e13059ea01b7e48d46a884dd6b8e31ef3f55b058c8f2cf8624e32cd835e13b96ef003ac4e675

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe
Filesize
69KB

MD5
3d0f60a06bfead1b3ce9847dbd9ce7e7

SHA1
e79eff9033d46736a876ab3379038a592d8e210f

SHA256
e9dad4f37bdc3e80130637b3b5de29bf78e376cb8b8894a27ab4b727d60dff5b

SHA512
c0eb730f283df54c2f061da019b57879e29b8f5549309d71630fcb541be894d47eab3943d011363dd0a9bd93e07962411454d9e88e6f5d61a4e0babfde62fc08

Download Submit
memory/1248-36-0x0000000000310000-0x0000000000328000-memory.dmp

Filesize
96KB

Download
memory/2008-39-0x0000000000EA0000-0x0000000000EB8000-memory.dmp

Filesize
96KB

Download
memory/2164-31-0x000007FEF5C93000-0x000007FEF5C94000-memory.dmp

Filesize
4KB

Download
memory/2164-0-0x000007FEF5C93000-0x000007FEF5C94000-memory.dmp

Filesize
4KB

Download
memory/2164-32-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download
memory/2164-2-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download
memory/2164-1-0x0000000000380000-0x0000000000398000-memory.dmp

Filesize
96KB

Download
memory/2720-8-0x000000001B5B0000-0x000000001B892000-memory.dmp

Filesize
2.9MB

Download
memory/2720-9-0x0000000001F00000-0x0000000001F08000-memory.dmp

Filesize
32KB

Download
memory/2720-7-0x00000000028D0000-0x0000000002950000-memory.dmp

Filesize
512KB

Download
memory/2752-16-0x0000000002860000-0x0000000002868000-memory.dmp

Filesize
32KB

Download
memory/2752-15-0x000000001B680000-0x000000001B962000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads