xworm | 6c38b37ea2e05082f0357c42d3e216d50ba4a50aaad9ca7a00a85402896e5f58

Analysis

max time kernel
146s
max time network
152s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
12-11-2024 17:58

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General

Target

JJsploit.exe
Size

328KB
MD5

7c85044f93d8185748d4519a3fa7a99c
SHA1

760353df28933f8c60f44dbc1f5592e47f5be99e
SHA256

6c38b37ea2e05082f0357c42d3e216d50ba4a50aaad9ca7a00a85402896e5f58
SHA512

d522d394751709904e7f44c5dfbef04814e6dc9bf0bb57716ca0058f6787c66d7be74e37c1232ac7fb165ca4e0a11861ca220cc0fef9903d411722fba19e5697
SSDEEP

3072:MrsAo+b1lo43OLx4RzsGmizgqDwyRFatcZqivp:Mrbbno48SaGRvDBTatcZv

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

23.ip.gl.ply.gg:54625

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/memory/2980-1-0x00000000002E0000-0x0000000000338000-memory.dmp	family_xworm
behavioral1/files/0x002c000000045060-62.dat	family_xworm

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

pid	Process
3884	powershell.exe
5908	powershell.exe
4792	powershell.exe
3860	powershell.exe

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-1-5-21-1669812756-2240353048-2660728061-1000\Control Panel\International\Geo\Nation	JJsploit.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
4780	XClient.exe
5160	XClient.exe

Loads dropped DLL 1 IoCs

pid	Process
2980	JJsploit.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-1-5-21-1669812756-2240353048-2660728061-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	JJsploit.exe

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

pid	Process
1724	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3884	powershell.exe
3884	powershell.exe
5908	powershell.exe
5908	powershell.exe
4792	powershell.exe
4792	powershell.exe
3860	powershell.exe
3860	powershell.exe
2980	JJsploit.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2980	JJsploit.exe
Token: SeDebugPrivilege	3884	powershell.exe
Token: SeIncreaseQuotaPrivilege	3884	powershell.exe
Token: SeSecurityPrivilege	3884	powershell.exe
Token: SeTakeOwnershipPrivilege	3884	powershell.exe
Token: SeLoadDriverPrivilege	3884	powershell.exe
Token: SeSystemProfilePrivilege	3884	powershell.exe
Token: SeSystemtimePrivilege	3884	powershell.exe
Token: SeProfSingleProcessPrivilege	3884	powershell.exe
Token: SeIncBasePriorityPrivilege	3884	powershell.exe
Token: SeCreatePagefilePrivilege	3884	powershell.exe
Token: SeBackupPrivilege	3884	powershell.exe
Token: SeRestorePrivilege	3884	powershell.exe
Token: SeShutdownPrivilege	3884	powershell.exe
Token: SeDebugPrivilege	3884	powershell.exe
Token: SeSystemEnvironmentPrivilege	3884	powershell.exe
Token: SeRemoteShutdownPrivilege	3884	powershell.exe
Token: SeUndockPrivilege	3884	powershell.exe
Token: SeManageVolumePrivilege	3884	powershell.exe
Token: 33	3884	powershell.exe
Token: 34	3884	powershell.exe
Token: 35	3884	powershell.exe
Token: 36	3884	powershell.exe
Token: SeDebugPrivilege	5908	powershell.exe
Token: SeIncreaseQuotaPrivilege	5908	powershell.exe
Token: SeSecurityPrivilege	5908	powershell.exe
Token: SeTakeOwnershipPrivilege	5908	powershell.exe
Token: SeLoadDriverPrivilege	5908	powershell.exe
Token: SeSystemProfilePrivilege	5908	powershell.exe
Token: SeSystemtimePrivilege	5908	powershell.exe
Token: SeProfSingleProcessPrivilege	5908	powershell.exe
Token: SeIncBasePriorityPrivilege	5908	powershell.exe
Token: SeCreatePagefilePrivilege	5908	powershell.exe
Token: SeBackupPrivilege	5908	powershell.exe
Token: SeRestorePrivilege	5908	powershell.exe
Token: SeShutdownPrivilege	5908	powershell.exe
Token: SeDebugPrivilege	5908	powershell.exe
Token: SeSystemEnvironmentPrivilege	5908	powershell.exe
Token: SeRemoteShutdownPrivilege	5908	powershell.exe
Token: SeUndockPrivilege	5908	powershell.exe
Token: SeManageVolumePrivilege	5908	powershell.exe
Token: 33	5908	powershell.exe
Token: 34	5908	powershell.exe
Token: 35	5908	powershell.exe
Token: 36	5908	powershell.exe
Token: SeDebugPrivilege	4792	powershell.exe
Token: SeIncreaseQuotaPrivilege	4792	powershell.exe
Token: SeSecurityPrivilege	4792	powershell.exe
Token: SeTakeOwnershipPrivilege	4792	powershell.exe
Token: SeLoadDriverPrivilege	4792	powershell.exe
Token: SeSystemProfilePrivilege	4792	powershell.exe
Token: SeSystemtimePrivilege	4792	powershell.exe
Token: SeProfSingleProcessPrivilege	4792	powershell.exe
Token: SeIncBasePriorityPrivilege	4792	powershell.exe
Token: SeCreatePagefilePrivilege	4792	powershell.exe
Token: SeBackupPrivilege	4792	powershell.exe
Token: SeRestorePrivilege	4792	powershell.exe
Token: SeShutdownPrivilege	4792	powershell.exe
Token: SeDebugPrivilege	4792	powershell.exe
Token: SeSystemEnvironmentPrivilege	4792	powershell.exe
Token: SeRemoteShutdownPrivilege	4792	powershell.exe
Token: SeUndockPrivilege	4792	powershell.exe
Token: SeManageVolumePrivilege	4792	powershell.exe
Token: 33	4792	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2980	JJsploit.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 3884	2980	JJsploit.exe	86
PID 2980 wrote to memory of 3884	2980	JJsploit.exe	86
PID 2980 wrote to memory of 5908	2980	JJsploit.exe	90
PID 2980 wrote to memory of 5908	2980	JJsploit.exe	90
PID 2980 wrote to memory of 4792	2980	JJsploit.exe	92
PID 2980 wrote to memory of 4792	2980	JJsploit.exe	92
PID 2980 wrote to memory of 3860	2980	JJsploit.exe	94
PID 2980 wrote to memory of 3860	2980	JJsploit.exe	94
PID 2980 wrote to memory of 1724	2980	JJsploit.exe	97
PID 2980 wrote to memory of 1724	2980	JJsploit.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\JJsploit.exe
"C:\Users\Admin\AppData\Local\Temp\JJsploit.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2980
- 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\JJsploit.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3884
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'JJsploit.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5908
- 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\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4792
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:3860
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1724

C:\Users\Admin\AppData\Roaming\XClient.exe
"C:\Users\Admin\AppData\Roaming\XClient.exe"
1⤵
- Executes dropped EXE
PID:4780

C:\Users\Admin\AppData\Roaming\XClient.exe
"C:\Users\Admin\AppData\Roaming\XClient.exe"
1⤵
- Executes dropped EXE
PID:5160

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\XClient.exe.log

Filesize
654B

MD5
11c6e74f0561678d2cf7fc075a6cc00c

SHA1
535ee79ba978554abcb98c566235805e7ea18490

SHA256
d39a78fabca39532fcb85ce908781a75132e1bd01cc50a3b290dd87127837d63

SHA512
32c63d67bf512b42e7f57f71287b354200126cb417ef9d869c72e0b9388a7c2f5e3b61f303f1353baa1bf482d0f17e06e23c9f50b2f1babd4d958b6da19c40b0

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

Filesize
3KB

MD5
020d1cbef5aeb22088c0faff8d76af4e

SHA1
93e7f27b8fb57cfea4ae330bedcace1a8ce7c014

SHA256
cb283829df7f7ca2f7f8072ed014bebb7d424581e8672a9fa5683f3674726bb0

SHA512
1046228ed9d08e5296c02409b5aa460e8280a633f7f2022ec7dc7c1e750522260006844bd5114ec713593bce1d10b8932963a8630e6707e76b45a0cb8c8ff53d

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

Filesize
1KB

MD5
714c05aecb94594ffcbd61b1eea79d83

SHA1
966442eb5cbf00d3d94dff78b67df228e49e1b9f

SHA256
07c4ee5409cd3d2f979809ec3eb3b7f245dd5c32d733fa8c683984ba5dfe4c4c

SHA512
9777034067dc146ec21c91f357a62fb6841744b1b258b1c642173285636a5e13e6ef6e536fb99331caa1de155071f5e7dd3f3d619992e5e78e319db2862c4b9c

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

Filesize
1KB

MD5
8c559c0d09303b0a6522f6b517f4b396

SHA1
09a91fd17f5280dcf8761a6c578ca1808288c8eb

SHA256
f78364a739543de7065fda162623793fafb5e120b43ed6fed5684525e1f6362c

SHA512
fd15fd9310f68c14965040b23ad6352defef7e046670132e79b790073989ee3be8bf8d5446178e1788be3bfbb72b2d5603f630f57e7d87b029e9ad2002a1cd7d

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

Filesize
1KB

MD5
d22f6e1ec4c759726e81d778f6a22aed

SHA1
3317b49d0cda611ac7da60872cb5159d7f6b6172

SHA256
3efa2609889b50d48ef5ec075ad14635e3b3db537f850d124c45147d10d391f1

SHA512
f835bd15fab0938307ebf3c0c2d70127331985fff460b3eb9240006deecdaffc26f8c0a61d3698d38186ca3a821b8d26a604960a608b5a3636256a045897c8ae

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sdwqlyv2.ogj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE7CB.tmp

Filesize
100KB

MD5
1b942faa8e8b1008a8c3c1004ba57349

SHA1
cd99977f6c1819b12b33240b784ca816dfe2cb91

SHA256
555ccb7ecd9ae52a75135fdd81ab443a49d5785b0621ed6468d28c4234e46ccc

SHA512
5aee3d59478d41ddd5885c99b394c9c4983064e2b3528db1a3f7fc289662bced4f57d072517bbe7573c6d1789435e987ef1aa9cc91f372bcfd30bc016675fa43

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

Filesize
328KB

MD5
7c85044f93d8185748d4519a3fa7a99c

SHA1
760353df28933f8c60f44dbc1f5592e47f5be99e

SHA256
6c38b37ea2e05082f0357c42d3e216d50ba4a50aaad9ca7a00a85402896e5f58

SHA512
d522d394751709904e7f44c5dfbef04814e6dc9bf0bb57716ca0058f6787c66d7be74e37c1232ac7fb165ca4e0a11861ca220cc0fef9903d411722fba19e5697

Download Submit
memory/2980-59-0x00007FFFC4E50000-0x00007FFFC5912000-memory.dmp

Filesize
10.8MB

Download
memory/2980-57-0x00007FFFC4E53000-0x00007FFFC4E55000-memory.dmp

Filesize
8KB

Download
memory/2980-58-0x00007FFFC4E50000-0x00007FFFC5912000-memory.dmp

Filesize
10.8MB

Download
memory/2980-0-0x00007FFFC4E53000-0x00007FFFC4E55000-memory.dmp

Filesize
8KB

Download
memory/2980-60-0x00000000025C0000-0x00000000025CC000-memory.dmp

Filesize
48KB

Download
memory/2980-65-0x0000000000BF0000-0x0000000000C2A000-memory.dmp

Filesize
232KB

Download
memory/2980-1-0x00000000002E0000-0x0000000000338000-memory.dmp

Filesize
352KB

Download
memory/3884-18-0x00007FFFC4E50000-0x00007FFFC5912000-memory.dmp

Filesize
10.8MB

Download
memory/3884-15-0x00007FFFC4E50000-0x00007FFFC5912000-memory.dmp

Filesize
10.8MB

Download
memory/3884-14-0x00007FFFC4E50000-0x00007FFFC5912000-memory.dmp

Filesize
10.8MB

Download
memory/3884-13-0x00007FFFC4E50000-0x00007FFFC5912000-memory.dmp

Filesize
10.8MB

Download
memory/3884-12-0x00007FFFC4E50000-0x00007FFFC5912000-memory.dmp

Filesize
10.8MB

Download
memory/3884-11-0x00000216C5AE0000-0x00000216C5B02000-memory.dmp

Filesize
136KB

Download