xworm | 2b9891de27bf63059cfc0a7a7902de60177b13a9501ee68912a19725b7575fa9

Analysis

max time kernel
159s
max time network
168s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2023, 21:51

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

XClient555exe_JC.exe
Size

57KB
MD5

92a0d311e7c2fa4f5b3bbdba892cd885
SHA1

da5056bb9a5774225eefa911ec2ccdb1eb55bf86
SHA256

2b9891de27bf63059cfc0a7a7902de60177b13a9501ee68912a19725b7575fa9
SHA512

19459ec6b2cafb2f864d0a37ba06537ecbbc3e719f8e95a614f1d3343f6d40978d9f6c5d6ddfc99abfe9b77d43703150d08b126cac8294b6022d64d74cd534d6
SSDEEP

768:qlh4xOhQ1UbXXDqeJQsJtY3KaS8phwrdbcZRl7BDQHHc6r3byNO2hgHa2Sc:wGohDlJXisbcZl+Hc6jGNO2xnc

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.0

soon-lp.at.ply.gg:17209

Attributes

Install_directory
%AppData%
install_file
bin.exe

Signatures

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral2/memory/1788-0-0x0000000000690000-0x00000000006A4000-memory.dmp	family_xworm
behavioral2/files/0x000a000000023071-60.dat	family_xworm
behavioral2/files/0x000a000000023071-62.dat	family_xworm
behavioral2/files/0x000a000000023071-63.dat	family_xworm
behavioral2/files/0x000a000000023071-68.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-1-5-21-1574508946-349927670-1185736483-1000\Control Panel\International\Geo\Nation	XClient555exe_JC.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient555exe_JC.lnk	XClient555exe_JC.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient555exe_JC.lnk	XClient555exe_JC.exe

Executes dropped EXE 2 IoCs

pid	Process
4680	XClient555exe_JC.exe
3360	XClient555exe_JC.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-1-5-21-1574508946-349927670-1185736483-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient555exe_JC = "C:\\Users\\Admin\\AppData\\Roaming\\XClient555exe_JC.exe"	XClient555exe_JC.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.

flow	ioc
1	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

pid	Process
1860	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1940	powershell.exe
1940	powershell.exe
3076	powershell.exe
3076	powershell.exe
3912	powershell.exe
3912	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	1788	XClient555exe_JC.exe
Token: SeDebugPrivilege	1940	powershell.exe
Token: SeDebugPrivilege	3076	powershell.exe
Token: SeDebugPrivilege	3912	powershell.exe
Token: SeDebugPrivilege	1788	XClient555exe_JC.exe
Token: SeDebugPrivilege	4680	XClient555exe_JC.exe
Token: SeDebugPrivilege	3360	XClient555exe_JC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 1940	1788	XClient555exe_JC.exe	84
PID 1788 wrote to memory of 1940	1788	XClient555exe_JC.exe	84
PID 1788 wrote to memory of 3076	1788	XClient555exe_JC.exe	88
PID 1788 wrote to memory of 3076	1788	XClient555exe_JC.exe	88
PID 1788 wrote to memory of 3912	1788	XClient555exe_JC.exe	89
PID 1788 wrote to memory of 3912	1788	XClient555exe_JC.exe	89
PID 1788 wrote to memory of 1860	1788	XClient555exe_JC.exe	91
PID 1788 wrote to memory of 1860	1788	XClient555exe_JC.exe	91

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\XClient555exe_JC.exe
"C:\Users\Admin\AppData\Local\Temp\XClient555exe_JC.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1788
- 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\XClient555exe_JC.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1940
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient555exe_JC.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3076
- 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\XClient555exe_JC.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3912
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient555exe_JC" /tr "C:\Users\Admin\AppData\Roaming\XClient555exe_JC.exe"
  2⤵
  - Creates scheduled task(s)
  PID:1860

C:\Users\Admin\AppData\Roaming\XClient555exe_JC.exe
C:\Users\Admin\AppData\Roaming\XClient555exe_JC.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4680

C:\Users\Admin\AppData\Roaming\XClient555exe_JC.exe
C:\Users\Admin\AppData\Roaming\XClient555exe_JC.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3360

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\XClient555exe_JC.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
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
cadef9abd087803c630df65264a6c81c

SHA1
babbf3636c347c8727c35f3eef2ee643dbcc4bd2

SHA256
cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438

SHA512
7278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085

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

Filesize
944B

MD5
1f545274ba19d9199a78f74cd05e8187

SHA1
4036cf78d3f310af42963c8f16ae27c5922b5dff

SHA256
3b4780cb2e226f4b05643c0b512960e694f21b35bbbe84d5c5e97628e1f8909c

SHA512
b0f66a6c32cb7f2f96b51c141ffe7df7f4fd61a792e6a3756f54b6d0df6f48d7a3bda23d46ee1e18a22ac995520fb9c4ca1b444d204bdd8f3e4b8651f59adc0d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2ysszrny.42h.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\XClient555exe_JC.exe

Filesize
57KB

MD5
92a0d311e7c2fa4f5b3bbdba892cd885

SHA1
da5056bb9a5774225eefa911ec2ccdb1eb55bf86

SHA256
2b9891de27bf63059cfc0a7a7902de60177b13a9501ee68912a19725b7575fa9

SHA512
19459ec6b2cafb2f864d0a37ba06537ecbbc3e719f8e95a614f1d3343f6d40978d9f6c5d6ddfc99abfe9b77d43703150d08b126cac8294b6022d64d74cd534d6

Download Submit
C:\Users\Admin\AppData\Roaming\XClient555exe_JC.exe

Filesize
57KB

MD5
92a0d311e7c2fa4f5b3bbdba892cd885

SHA1
da5056bb9a5774225eefa911ec2ccdb1eb55bf86

SHA256
2b9891de27bf63059cfc0a7a7902de60177b13a9501ee68912a19725b7575fa9

SHA512
19459ec6b2cafb2f864d0a37ba06537ecbbc3e719f8e95a614f1d3343f6d40978d9f6c5d6ddfc99abfe9b77d43703150d08b126cac8294b6022d64d74cd534d6

Download Submit
C:\Users\Admin\AppData\Roaming\XClient555exe_JC.exe

Filesize
57KB

MD5
92a0d311e7c2fa4f5b3bbdba892cd885

SHA1
da5056bb9a5774225eefa911ec2ccdb1eb55bf86

SHA256
2b9891de27bf63059cfc0a7a7902de60177b13a9501ee68912a19725b7575fa9

SHA512
19459ec6b2cafb2f864d0a37ba06537ecbbc3e719f8e95a614f1d3343f6d40978d9f6c5d6ddfc99abfe9b77d43703150d08b126cac8294b6022d64d74cd534d6

Download Submit
C:\Users\Admin\AppData\Roaming\XClient555exe_JC.exe

Filesize
57KB

MD5
92a0d311e7c2fa4f5b3bbdba892cd885

SHA1
da5056bb9a5774225eefa911ec2ccdb1eb55bf86

SHA256
2b9891de27bf63059cfc0a7a7902de60177b13a9501ee68912a19725b7575fa9

SHA512
19459ec6b2cafb2f864d0a37ba06537ecbbc3e719f8e95a614f1d3343f6d40978d9f6c5d6ddfc99abfe9b77d43703150d08b126cac8294b6022d64d74cd534d6

Download Submit
memory/1788-0-0x0000000000690000-0x00000000006A4000-memory.dmp

Filesize
80KB

Download
memory/1788-4-0x000000001B5A0000-0x000000001B5B0000-memory.dmp

Filesize
64KB

Download
memory/1788-3-0x000000001B5A0000-0x000000001B5B0000-memory.dmp

Filesize
64KB

Download
memory/1788-2-0x00007FFA81900000-0x00007FFA823C1000-memory.dmp

Filesize
10.8MB

Download
memory/1788-1-0x00007FFA81900000-0x00007FFA823C1000-memory.dmp

Filesize
10.8MB

Download
memory/1940-17-0x000001FFCC9E0000-0x000001FFCC9F0000-memory.dmp

Filesize
64KB

Download
memory/1940-19-0x00007FFA81900000-0x00007FFA823C1000-memory.dmp

Filesize
10.8MB

Download
memory/1940-5-0x00007FFA81900000-0x00007FFA823C1000-memory.dmp

Filesize
10.8MB

Download
memory/1940-23-0x00007FFA81900000-0x00007FFA823C1000-memory.dmp

Filesize
10.8MB

Download
memory/1940-16-0x000001FFCC9E0000-0x000001FFCC9F0000-memory.dmp

Filesize
64KB

Download
memory/1940-18-0x000001FFCC9E0000-0x000001FFCC9F0000-memory.dmp

Filesize
64KB

Download
memory/1940-11-0x000001FFE6FE0000-0x000001FFE7002000-memory.dmp

Filesize
136KB

Download
memory/1940-20-0x000001FFCC9E0000-0x000001FFCC9F0000-memory.dmp

Filesize
64KB

Download
memory/3076-25-0x00007FFA81900000-0x00007FFA823C1000-memory.dmp

Filesize
10.8MB

Download
memory/3076-39-0x00007FFA81900000-0x00007FFA823C1000-memory.dmp

Filesize
10.8MB

Download
memory/3076-37-0x0000024F7CA00000-0x0000024F7CA10000-memory.dmp

Filesize
64KB

Download
memory/3076-26-0x0000024F7CA00000-0x0000024F7CA10000-memory.dmp

Filesize
64KB

Download
memory/3360-70-0x00007FFA81900000-0x00007FFA823C1000-memory.dmp

Filesize
10.8MB

Download
memory/3360-71-0x00007FFA81900000-0x00007FFA823C1000-memory.dmp

Filesize
10.8MB

Download
memory/3912-53-0x00007FFA81900000-0x00007FFA823C1000-memory.dmp

Filesize
10.8MB

Download
memory/3912-51-0x000001994DC70000-0x000001994DC80000-memory.dmp

Filesize
64KB

Download
memory/3912-40-0x00007FFA81900000-0x00007FFA823C1000-memory.dmp

Filesize
10.8MB

Download
memory/4680-66-0x00007FFA81900000-0x00007FFA823C1000-memory.dmp

Filesize
10.8MB

Download
memory/4680-64-0x00007FFA81900000-0x00007FFA823C1000-memory.dmp

Filesize
10.8MB

Download