xworm | f645030d125dac92a38f919cc0b134f7cba5f70f0fc5ce421a532dfe1515c22e

Analysis

max time kernel
205s
max time network
228s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
14/10/2023, 03:30

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General

Target

XWorm Ping Optimizer.exe
Size

209KB
MD5

43bb693a4d3ca23a85015b487f0db69a
SHA1

4a29501c02988e111c2c6c9dccdbd135c119a4e8
SHA256

f645030d125dac92a38f919cc0b134f7cba5f70f0fc5ce421a532dfe1515c22e
SHA512

3694b42ef2f8ad357df9934349c100a0fd6a8386c7859ee1299bc34ba200429ac9584695a174050c425c91f120d9f40091773963e9a3427c323f614a36b7ca13
SSDEEP

3072:ugUv1gB5CLa9bqqsBoO/Ya1W7T4MxK08cnNizrQxs/DrGQG3v9RfPJ:uJ1I5CLqbYlIT4MxKJzrAP

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

functions-screensavers.gl.at.ply.gg:11035

Attributes

Install_directory
%Temp%
install_file
XWorm Auto Updater.exe

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral2/memory/2988-0-0x0000000000610000-0x0000000000648000-memory.dmp	family_xworm
behavioral2/files/0x000f0000000230e8-81.dat	family_xworm
behavioral2/files/0x000f0000000230e8-82.dat	family_xworm
behavioral2/files/0x000f0000000230e8-88.dat	family_xworm

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

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-1-5-21-1045988481-1457812719-2617974652-1000\Control Panel\International\Geo\Nation	XWorm Ping Optimizer.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XWorm Auto Updater.lnk	XWorm Ping Optimizer.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XWorm Auto Updater.lnk	XWorm Ping Optimizer.exe

Executes dropped EXE 2 IoCs

pid	Process
3824	XWorm Auto Updater.exe
4224	XWorm Auto Updater.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-1-5-21-1045988481-1457812719-2617974652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XWorm Auto Updater = "C:\\Users\\Admin\\AppData\\Local\\Temp\\XWorm Auto Updater.exe"	XWorm Ping Optimizer.exe

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

pid	Process
3140	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2988	XWorm Ping Optimizer.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
540	powershell.exe
540	powershell.exe
4812	powershell.exe
4812	powershell.exe
3908	powershell.exe
3908	powershell.exe
1808	powershell.exe
1808	powershell.exe
2988	XWorm Ping Optimizer.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2988	XWorm Ping Optimizer.exe
Token: SeDebugPrivilege	540	powershell.exe
Token: SeDebugPrivilege	4812	powershell.exe
Token: SeDebugPrivilege	3908	powershell.exe
Token: SeDebugPrivilege	1808	powershell.exe
Token: SeDebugPrivilege	2988	XWorm Ping Optimizer.exe
Token: SeDebugPrivilege	3824	XWorm Auto Updater.exe
Token: SeDebugPrivilege	4224	XWorm Auto Updater.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2988	XWorm Ping Optimizer.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 540	2988	XWorm Ping Optimizer.exe	83
PID 2988 wrote to memory of 540	2988	XWorm Ping Optimizer.exe	83
PID 2988 wrote to memory of 4812	2988	XWorm Ping Optimizer.exe	85
PID 2988 wrote to memory of 4812	2988	XWorm Ping Optimizer.exe	85
PID 2988 wrote to memory of 3908	2988	XWorm Ping Optimizer.exe	88
PID 2988 wrote to memory of 3908	2988	XWorm Ping Optimizer.exe	88
PID 2988 wrote to memory of 1808	2988	XWorm Ping Optimizer.exe	90
PID 2988 wrote to memory of 1808	2988	XWorm Ping Optimizer.exe	90
PID 2988 wrote to memory of 3140	2988	XWorm Ping Optimizer.exe	97
PID 2988 wrote to memory of 3140	2988	XWorm Ping Optimizer.exe	97

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\XWorm Ping Optimizer.exe
"C:\Users\Admin\AppData\Local\Temp\XWorm Ping Optimizer.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2988
- 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\XWorm Ping Optimizer.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:540
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XWorm Ping Optimizer.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4812
- 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\XWorm Auto Updater.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3908
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XWorm Auto Updater.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1808
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XWorm Auto Updater" /tr "C:\Users\Admin\AppData\Local\Temp\XWorm Auto Updater.exe"
  2⤵
  - Creates scheduled task(s)
  PID:3140

C:\Users\Admin\AppData\Local\Temp\XWorm Auto Updater.exe
"C:\Users\Admin\AppData\Local\Temp\XWorm Auto Updater.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3824

C:\Users\Admin\AppData\Local\Temp\XWorm Auto Updater.exe
"C:\Users\Admin\AppData\Local\Temp\XWorm Auto Updater.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4224

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\XWorm Auto Updater.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

Filesize
2KB

MD5
440cb38dbee06645cc8b74d51f6e5f71

SHA1
d7e61da91dc4502e9ae83281b88c1e48584edb7c

SHA256
8ef7a682dfd99ff5b7e9de0e1be43f0016d68695a43c33c028af2635cc15ecfe

SHA512
3aab19578535e6ba0f6beb5690c87d970292100704209d2dcebddcdd46c6bead27588ef5d98729bfd50606a54cc1edf608b3d15bef42c13b9982aaaf15de7fd6

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

Filesize
944B

MD5
e6b9e03dcde217fc7d1692b3d65233d7

SHA1
67367ef59dbc1661ff29d6fe5ce3ed3d39678044

SHA256
790c142b39325b5bcf07c2d7b8afb8fb3b6f8c1e99a39ce5870b2ef043d8cfdd

SHA512
8f34d037a97f1131ff9863c10ff7cf7f029c2973c5f32fcee1751cd47a5b7cfc3bf5b6c30ada08f3793918e600d4a45f8cb8d22502b693c6a9aeba9d0d504410

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

Filesize
944B

MD5
98baf5117c4fcec1692067d200c58ab3

SHA1
5b33a57b72141e7508b615e17fb621612cb8e390

SHA256
30bf8496e9a08f4fdfe4767abcd565f92b6da06ca1c7823a70cb7cab16262e51

SHA512
344a70bfc037d54176f12db91f05bf4295bb587a5062fd1febe6f52853571170bd8ef6042cb87b893185bbae1937cf77b679d7970f8cc1c2666b0b7c1b32987d

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

Filesize
944B

MD5
9bf2b1a5d4f6bd85aa4e75d833186aaa

SHA1
44cce8cba6525ba252f6a9253ec10a11d8044788

SHA256
2f17b4ae194794a15897c5241c20bc086cc3d32797dad4a677103f25bd892524

SHA512
f48fe3ca2ee9902bd5e696318aafe95ba0514774ef76b953df77bdb69008a2257cd0ce6784ae05a4e4a9b398cd4977cf55f9a0f8eb8b92625a6256bb9d502379

Download Submit
C:\Users\Admin\AppData\Local\Temp\XWorm Auto Updater.exe

Filesize
209KB

MD5
43bb693a4d3ca23a85015b487f0db69a

SHA1
4a29501c02988e111c2c6c9dccdbd135c119a4e8

SHA256
f645030d125dac92a38f919cc0b134f7cba5f70f0fc5ce421a532dfe1515c22e

SHA512
3694b42ef2f8ad357df9934349c100a0fd6a8386c7859ee1299bc34ba200429ac9584695a174050c425c91f120d9f40091773963e9a3427c323f614a36b7ca13

Download Submit
C:\Users\Admin\AppData\Local\Temp\XWorm Auto Updater.exe

Filesize
209KB

MD5
43bb693a4d3ca23a85015b487f0db69a

SHA1
4a29501c02988e111c2c6c9dccdbd135c119a4e8

SHA256
f645030d125dac92a38f919cc0b134f7cba5f70f0fc5ce421a532dfe1515c22e

SHA512
3694b42ef2f8ad357df9934349c100a0fd6a8386c7859ee1299bc34ba200429ac9584695a174050c425c91f120d9f40091773963e9a3427c323f614a36b7ca13

Download Submit
C:\Users\Admin\AppData\Local\Temp\XWorm Auto Updater.exe

Filesize
209KB

MD5
43bb693a4d3ca23a85015b487f0db69a

SHA1
4a29501c02988e111c2c6c9dccdbd135c119a4e8

SHA256
f645030d125dac92a38f919cc0b134f7cba5f70f0fc5ce421a532dfe1515c22e

SHA512
3694b42ef2f8ad357df9934349c100a0fd6a8386c7859ee1299bc34ba200429ac9584695a174050c425c91f120d9f40091773963e9a3427c323f614a36b7ca13

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jxrhnlu5.i1h.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/540-13-0x000001DE73AD0000-0x000001DE73AE0000-memory.dmp

Filesize
64KB

Download
memory/540-18-0x000001DE73AD0000-0x000001DE73AE0000-memory.dmp

Filesize
64KB

Download
memory/540-19-0x000001DE73AD0000-0x000001DE73AE0000-memory.dmp

Filesize
64KB

Download
memory/540-20-0x000001DE73AD0000-0x000001DE73AE0000-memory.dmp

Filesize
64KB

Download
memory/540-21-0x000001DE73AD0000-0x000001DE73AE0000-memory.dmp

Filesize
64KB

Download
memory/540-24-0x00007FFE78000000-0x00007FFE78AC1000-memory.dmp

Filesize
10.8MB

Download
memory/540-17-0x00007FFE78000000-0x00007FFE78AC1000-memory.dmp

Filesize
10.8MB

Download
memory/540-16-0x000001DE73AD0000-0x000001DE73AE0000-memory.dmp

Filesize
64KB

Download
memory/540-15-0x000001DE75B50000-0x000001DE75B72000-memory.dmp

Filesize
136KB

Download
memory/540-14-0x000001DE73AD0000-0x000001DE73AE0000-memory.dmp

Filesize
64KB

Download
memory/540-12-0x00007FFE78000000-0x00007FFE78AC1000-memory.dmp

Filesize
10.8MB

Download
memory/1808-72-0x000001F85C730000-0x000001F85C740000-memory.dmp

Filesize
64KB

Download
memory/1808-60-0x000001F85C730000-0x000001F85C740000-memory.dmp

Filesize
64KB

Download
memory/1808-74-0x00007FFE78000000-0x00007FFE78AC1000-memory.dmp

Filesize
10.8MB

Download
memory/1808-59-0x00007FFE78000000-0x00007FFE78AC1000-memory.dmp

Filesize
10.8MB

Download
memory/1808-61-0x000001F85C730000-0x000001F85C740000-memory.dmp

Filesize
64KB

Download
memory/2988-1-0x00007FFE78000000-0x00007FFE78AC1000-memory.dmp

Filesize
10.8MB

Download
memory/2988-2-0x00007FFE78000000-0x00007FFE78AC1000-memory.dmp

Filesize
10.8MB

Download
memory/2988-87-0x0000000000EB0000-0x0000000000EBC000-memory.dmp

Filesize
48KB

Download
memory/2988-80-0x0000000002780000-0x0000000002790000-memory.dmp

Filesize
64KB

Download
memory/2988-79-0x0000000002780000-0x0000000002790000-memory.dmp

Filesize
64KB

Download
memory/2988-0-0x0000000000610000-0x0000000000648000-memory.dmp

Filesize
224KB

Download
memory/3824-83-0x00007FFE78000000-0x00007FFE78AC1000-memory.dmp

Filesize
10.8MB

Download
memory/3824-85-0x00007FFE78000000-0x00007FFE78AC1000-memory.dmp

Filesize
10.8MB

Download
memory/3908-44-0x000001AEEF1F0000-0x000001AEEF200000-memory.dmp

Filesize
64KB

Download
memory/3908-56-0x000001AEEF1F0000-0x000001AEEF200000-memory.dmp

Filesize
64KB

Download
memory/3908-55-0x000001AEEF1F0000-0x000001AEEF200000-memory.dmp

Filesize
64KB

Download
memory/3908-58-0x00007FFE78000000-0x00007FFE78AC1000-memory.dmp

Filesize
10.8MB

Download
memory/3908-43-0x000001AEEF1F0000-0x000001AEEF200000-memory.dmp

Filesize
64KB

Download
memory/3908-42-0x00007FFE78000000-0x00007FFE78AC1000-memory.dmp

Filesize
10.8MB

Download
memory/4224-90-0x00007FFE78000000-0x00007FFE78AC1000-memory.dmp

Filesize
10.8MB

Download
memory/4812-39-0x0000012C5C7D0000-0x0000012C5C7E0000-memory.dmp

Filesize
64KB

Download
memory/4812-36-0x0000012C5C7D0000-0x0000012C5C7E0000-memory.dmp

Filesize
64KB

Download
memory/4812-35-0x00007FFE78000000-0x00007FFE78AC1000-memory.dmp

Filesize
10.8MB

Download
memory/4812-41-0x00007FFE78000000-0x00007FFE78AC1000-memory.dmp

Filesize
10.8MB

Download
memory/4812-37-0x0000012C5C7D0000-0x0000012C5C7E0000-memory.dmp

Filesize
64KB

Download