xworm | f1d31c22c3cd5ea68f7929947784806fb5f9d48ce35f7133351f743d870aa223

Analysis

max time kernel
150s
max time network
147s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
30-06-2024 04:21

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General

Target

f537e878065dbdfb04fa5382bf82b1ab.exe
Size

173KB
MD5

f537e878065dbdfb04fa5382bf82b1ab
SHA1

21c67ae027f5b1db7d84a93433bc17b1f5826151
SHA256

f1d31c22c3cd5ea68f7929947784806fb5f9d48ce35f7133351f743d870aa223
SHA512

02e80c6f24e56091e747732bfe2025ab39a62cd9a6eaa50fcd3b26a57451dc159c23af9357ee88a8dd08926c9bed4f168e8ef37cf40d8ca2e75c8b61afec26a3
SSDEEP

3072:mMSwuonS8fqbBohj4UQOWqUAdBz65/M6If+3Js+3JFkKeTn6:mMS3onSrb6hj4UXdxBt25

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

127.0.0.1:57677

Azuu-57677.portmap.io:57677

Attributes

Install_directory
%Temp%
install_file
svchost.exe

Signatures

Detect Xworm Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3024-1-0x0000000001110000-0x0000000001142000-memory.dmp	family_xworm
C:\Users\Admin\AppData\Local\Temp\svchost.exe	family_xworm
behavioral1/memory/2096-37-0x00000000011B0000-0x00000000011E2000-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

2836 powershell.exe
2540 powershell.exe
2212 powershell.exe
2748 powershell.exe

pid	process
2836	powershell.exe
2540	powershell.exe
2212	powershell.exe
2748	powershell.exe

Drops startup file 2 IoCs

Processes:

f537e878065dbdfb04fa5382bf82b1ab.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	f537e878065dbdfb04fa5382bf82b1ab.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	f537e878065dbdfb04fa5382bf82b1ab.exe

Executes dropped EXE 2 IoCs

Processes:

svchost.exesvchost.exe

pid process

2096 svchost.exe
1088 svchost.exe

pid	process
2096	svchost.exe
1088	svchost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

f537e878065dbdfb04fa5382bf82b1ab.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe"	f537e878065dbdfb04fa5382bf82b1ab.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
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

Processes:

schtasks.exe

pid process

2968 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exef537e878065dbdfb04fa5382bf82b1ab.exe

pid process

2748 powershell.exe
2836 powershell.exe
2540 powershell.exe
2212 powershell.exe
3024 f537e878065dbdfb04fa5382bf82b1ab.exe

flow	ioc
4	ip-api.com

pid	process
2968	schtasks.exe

pid	process
2748	powershell.exe
2836	powershell.exe
2540	powershell.exe
2212	powershell.exe
3024	f537e878065dbdfb04fa5382bf82b1ab.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

f537e878065dbdfb04fa5382bf82b1ab.exepowershell.exepowershell.exepowershell.exepowershell.exesvchost.exesvchost.exe

description	pid	process
Token: SeDebugPrivilege	3024	f537e878065dbdfb04fa5382bf82b1ab.exe
Token: SeDebugPrivilege	2748	powershell.exe
Token: SeDebugPrivilege	2836	powershell.exe
Token: SeDebugPrivilege	2540	powershell.exe
Token: SeDebugPrivilege	2212	powershell.exe
Token: SeDebugPrivilege	3024	f537e878065dbdfb04fa5382bf82b1ab.exe
Token: SeDebugPrivilege	2096	svchost.exe
Token: SeDebugPrivilege	1088	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

f537e878065dbdfb04fa5382bf82b1ab.exe

pid process

3024 f537e878065dbdfb04fa5382bf82b1ab.exe

pid	process
3024	f537e878065dbdfb04fa5382bf82b1ab.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

f537e878065dbdfb04fa5382bf82b1ab.exetaskeng.exe

description	pid	process	target process
PID 3024 wrote to memory of 2748	3024	f537e878065dbdfb04fa5382bf82b1ab.exe	powershell.exe
PID 3024 wrote to memory of 2748	3024	f537e878065dbdfb04fa5382bf82b1ab.exe	powershell.exe
PID 3024 wrote to memory of 2748	3024	f537e878065dbdfb04fa5382bf82b1ab.exe	powershell.exe
PID 3024 wrote to memory of 2836	3024	f537e878065dbdfb04fa5382bf82b1ab.exe	powershell.exe
PID 3024 wrote to memory of 2836	3024	f537e878065dbdfb04fa5382bf82b1ab.exe	powershell.exe
PID 3024 wrote to memory of 2836	3024	f537e878065dbdfb04fa5382bf82b1ab.exe	powershell.exe
PID 3024 wrote to memory of 2540	3024	f537e878065dbdfb04fa5382bf82b1ab.exe	powershell.exe
PID 3024 wrote to memory of 2540	3024	f537e878065dbdfb04fa5382bf82b1ab.exe	powershell.exe
PID 3024 wrote to memory of 2540	3024	f537e878065dbdfb04fa5382bf82b1ab.exe	powershell.exe
PID 3024 wrote to memory of 2212	3024	f537e878065dbdfb04fa5382bf82b1ab.exe	powershell.exe
PID 3024 wrote to memory of 2212	3024	f537e878065dbdfb04fa5382bf82b1ab.exe	powershell.exe
PID 3024 wrote to memory of 2212	3024	f537e878065dbdfb04fa5382bf82b1ab.exe	powershell.exe
PID 3024 wrote to memory of 2968	3024	f537e878065dbdfb04fa5382bf82b1ab.exe	schtasks.exe
PID 3024 wrote to memory of 2968	3024	f537e878065dbdfb04fa5382bf82b1ab.exe	schtasks.exe
PID 3024 wrote to memory of 2968	3024	f537e878065dbdfb04fa5382bf82b1ab.exe	schtasks.exe
PID 752 wrote to memory of 2096	752	taskeng.exe	svchost.exe
PID 752 wrote to memory of 2096	752	taskeng.exe	svchost.exe
PID 752 wrote to memory of 2096	752	taskeng.exe	svchost.exe
PID 752 wrote to memory of 1088	752	taskeng.exe	svchost.exe
PID 752 wrote to memory of 1088	752	taskeng.exe	svchost.exe
PID 752 wrote to memory of 1088	752	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\f537e878065dbdfb04fa5382bf82b1ab.exe
"C:\Users\Admin\AppData\Local\Temp\f537e878065dbdfb04fa5382bf82b1ab.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:3024

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\f537e878065dbdfb04fa5382bf82b1ab.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2748

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'f537e878065dbdfb04fa5382bf82b1ab.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2836

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:2540

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:2212

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\Temp\svchost.exe"
2⤵
- Scheduled Task/Job: Scheduled Task
PID:2968

C:\Windows\system32\taskeng.exe
taskeng.exe {7F1F2E07-10F4-492E-B42A-CA0877FEAB48} S-1-5-21-481678230-3773327859-3495911762-1000:UIBNQNMA\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:752

C:\Users\Admin\AppData\Local\Temp\svchost.exe
C:\Users\Admin\AppData\Local\Temp\svchost.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2096

C:\Users\Admin\AppData\Local\Temp\svchost.exe
C:\Users\Admin\AppData\Local\Temp\svchost.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1088

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads

C:\Users\Admin\AppData\Local\Temp\svchost.exe
Filesize
173KB

MD5
f537e878065dbdfb04fa5382bf82b1ab

SHA1
21c67ae027f5b1db7d84a93433bc17b1f5826151

SHA256
f1d31c22c3cd5ea68f7929947784806fb5f9d48ce35f7133351f743d870aa223

SHA512
02e80c6f24e56091e747732bfe2025ab39a62cd9a6eaa50fcd3b26a57451dc159c23af9357ee88a8dd08926c9bed4f168e8ef37cf40d8ca2e75c8b61afec26a3

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize
7KB

MD5
d3cb707eaa9de46a8ea7c498e49cc6a9

SHA1
0fd875e4bd28f6ec63a4c1d8a107fe6a9f55dcee

SHA256
0be1c95e8511dcc9930fd79f654b4522769292988ea81d8837cb0cece4d3aa29

SHA512
c825dd3779be3e05b38611df73227e8bff310b14082cfcb2a73ecdd4fab3185739570f59bdf203b92d4162c93f91d80798bb6c0ec97dfa29635b3952460a8284

Download Submit
\??\PIPE\srvsvc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/2096-37-0x00000000011B0000-0x00000000011E2000-memory.dmp

Filesize
200KB

Download
memory/2748-7-0x0000000002D20000-0x0000000002DA0000-memory.dmp

Filesize
512KB

Download
memory/2748-8-0x000000001B510000-0x000000001B7F2000-memory.dmp

Filesize
2.9MB

Download
memory/2748-9-0x0000000002810000-0x0000000002818000-memory.dmp

Filesize
32KB

Download
memory/2836-15-0x000000001B590000-0x000000001B872000-memory.dmp

Filesize
2.9MB

Download
memory/2836-16-0x0000000002340000-0x0000000002348000-memory.dmp

Filesize
32KB

Download
memory/3024-2-0x000007FEF5530000-0x000007FEF5F1C000-memory.dmp

Filesize
9.9MB

Download
memory/3024-0-0x000007FEF5533000-0x000007FEF5534000-memory.dmp

Filesize
4KB

Download
memory/3024-32-0x000007FEF5533000-0x000007FEF5534000-memory.dmp

Filesize
4KB

Download
memory/3024-33-0x000007FEF5530000-0x000007FEF5F1C000-memory.dmp

Filesize
9.9MB

Download
memory/3024-1-0x0000000001110000-0x0000000001142000-memory.dmp

Filesize
200KB

Download