xworm | 94b65da2b5cc3728547f892a46e9c48c5d54477d10ea8e210304593acd3568e7 | Triage

Analysis

max time kernel
1791s
max time network
1803s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
30/05/2024, 20:08

Sharing

Report Analysis Logs

General

Target

XClient.exe
Size

59KB
MD5

d172c0a4ae3e8cef6a0a910bde62e195
SHA1

51139fc633fe81a66c8ed55081f92ec5256bd0bd
SHA256

94b65da2b5cc3728547f892a46e9c48c5d54477d10ea8e210304593acd3568e7
SHA512

d82c930a42fd623aeee51007453d201e96110b546f1fb34080fc6d4c1488d71b3828f5f1833d347993444e4d332aa00fbb7b8922fce676d220375470ad0fa467
SSDEEP

1536:9vv68xQQodoW8YTK6uDkbrfSVxwXSOqQ+k:1vjWQoGJYTK6CkbrfHSOqQ+k

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

length-desert.gl.at.ply.gg:58023

%AppData%:9

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral3/memory/3152-1-0x0000000000820000-0x0000000000836000-memory.dmp	family_xworm
behavioral3/files/0x000800000002324f-7.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

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	XClient.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9.lnk	XClient.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9.lnk	XClient.exe

Executes dropped EXE 30 IoCs

pid	Process
2716	9
2188	9
2724	9
3984	9
2852	9
1408	9
1912	9
3708	9
4400	9
4624	9
1408	9
5028	9
2288	9
2992	9
1432	9
1096	9
5060	9
4504	9
832	9
2900	9
3272	9
1320	9
3884	9
856	9
2716	9
1192	9
448	9
2260	9
2628	9
412	9

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9 = "C:\\Users\\Admin\\AppData\\Roaming\\9"	XClient.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.

Scheduled Task/Job

pid	Process
3768	schtasks.exe

Suspicious use of AdjustPrivilegeToken 32 IoCs

description	pid	Process
Token: SeDebugPrivilege	3152	XClient.exe
Token: SeDebugPrivilege	3152	XClient.exe
Token: SeDebugPrivilege	2716	9
Token: SeDebugPrivilege	2188	9
Token: SeDebugPrivilege	2724	9
Token: SeDebugPrivilege	3984	9
Token: SeDebugPrivilege	2852	9
Token: SeDebugPrivilege	1408	9
Token: SeDebugPrivilege	1912	9
Token: SeDebugPrivilege	3708	9
Token: SeDebugPrivilege	4400	9
Token: SeDebugPrivilege	4624	9
Token: SeDebugPrivilege	1408	9
Token: SeDebugPrivilege	5028	9
Token: SeDebugPrivilege	2288	9
Token: SeDebugPrivilege	2992	9
Token: SeDebugPrivilege	1432	9
Token: SeDebugPrivilege	1096	9
Token: SeDebugPrivilege	5060	9
Token: SeDebugPrivilege	4504	9
Token: SeDebugPrivilege	832	9
Token: SeDebugPrivilege	2900	9
Token: SeDebugPrivilege	3272	9
Token: SeDebugPrivilege	1320	9
Token: SeDebugPrivilege	3884	9
Token: SeDebugPrivilege	856	9
Token: SeDebugPrivilege	2716	9
Token: SeDebugPrivilege	1192	9
Token: SeDebugPrivilege	448	9
Token: SeDebugPrivilege	2260	9
Token: SeDebugPrivilege	2628	9
Token: SeDebugPrivilege	412	9

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3152 wrote to memory of 3768	3152	XClient.exe	92
PID 3152 wrote to memory of 3768	3152	XClient.exe	92

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\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3152
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "9" /tr "C:\Users\Admin\AppData\Roaming\9"
  2⤵
  - Creates scheduled task(s)
  PID:3768

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2716

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4092 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
1⤵
PID:996

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2188

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2724

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3984

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2852

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1408

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1912

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3708

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3184 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
1⤵
PID:4492

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4400

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4624

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1408

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5028

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2288

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2992

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1432

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1096

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5060

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4504

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:832

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2900

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3272

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1320

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3884

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:856

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2716

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1192

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:448

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2260

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2628

C:\Users\Admin\AppData\Roaming\9
C:\Users\Admin\AppData\Roaming\9
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:412

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

Credential Access

Discovery

Query Registry

System Information Discovery

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\9.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Roaming\9

Filesize
59KB

MD5
d172c0a4ae3e8cef6a0a910bde62e195

SHA1
51139fc633fe81a66c8ed55081f92ec5256bd0bd

SHA256
94b65da2b5cc3728547f892a46e9c48c5d54477d10ea8e210304593acd3568e7

SHA512
d82c930a42fd623aeee51007453d201e96110b546f1fb34080fc6d4c1488d71b3828f5f1833d347993444e4d332aa00fbb7b8922fce676d220375470ad0fa467

Download Submit
memory/2716-9-0x00007FFA05EA0000-0x00007FFA06961000-memory.dmp

Filesize
10.8MB

Download
memory/2716-11-0x00007FFA05EA0000-0x00007FFA06961000-memory.dmp

Filesize
10.8MB

Download
memory/3152-0-0x00007FFA05EA3000-0x00007FFA05EA5000-memory.dmp

Filesize
8KB

Download
memory/3152-1-0x0000000000820000-0x0000000000836000-memory.dmp

Filesize
88KB

Download
memory/3152-5-0x00007FFA05EA0000-0x00007FFA06961000-memory.dmp

Filesize
10.8MB

Download
memory/3152-6-0x00007FFA05EA3000-0x00007FFA05EA5000-memory.dmp

Filesize
8KB

Download
memory/3152-12-0x00007FFA05EA0000-0x00007FFA06961000-memory.dmp

Filesize
10.8MB

Download