xworm | e53bd0b8797b8c0cc32875dba3469b938eb8d1c3812b2829378cdb7d40b62654

Analysis

max time kernel
99s
max time network
146s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250113-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250113-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
25-01-2025 07:48

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General

Target

XClient (1).exe
Size

41KB
MD5

8ac12cc24b5ac76188fe9612dc51777e
SHA1

0c0dddf34dbf7b95e82c58fdb7cfabb80db90430
SHA256

e53bd0b8797b8c0cc32875dba3469b938eb8d1c3812b2829378cdb7d40b62654
SHA512

02c4abdc825b0d3b9a88a1d66232d6f42497b7d83c6bfc473df8efbc0350371653d3ce220409aa5968cf71396ec230dea52e3793085d1f06d2338e4360c8bc93
SSDEEP

768:LrJDweBDuOkScrbsN/x6WECAr43MkfJF5Pa9p+U6iOwhF3/ibK:pDwewicrbsN/YDRr4RF49IU6iOwv6G

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

57.128.132.221:7000

Mutex

A0pVR4huor1J3yZ3

Attributes

Install_directory
%AppData%
install_file
Win32runtime.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral4/memory/2820-1-0x0000000000090000-0x00000000000A0000-memory.dmp	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
3300	powershell.exe
3924	powershell.exe
2132	powershell.exe
688	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-1-5-21-1898866115-3160784972-1217720036-1000\Control Panel\International\Geo\Nation	XClient (1).exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Win32runtime.lnk	XClient (1).exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Win32runtime.lnk	XClient (1).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-1-5-21-1898866115-3160784972-1217720036-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win32runtime = "C:\\Users\\Admin\\AppData\\Roaming\\Win32runtime.exe"	XClient (1).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
15	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3884	timeout.exe

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
1476	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3924	powershell.exe
3924	powershell.exe
2132	powershell.exe
2132	powershell.exe
688	powershell.exe
688	powershell.exe
3300	powershell.exe
3300	powershell.exe
2820	XClient (1).exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2820	XClient (1).exe
Token: SeDebugPrivilege	3924	powershell.exe
Token: SeIncreaseQuotaPrivilege	3924	powershell.exe
Token: SeSecurityPrivilege	3924	powershell.exe
Token: SeTakeOwnershipPrivilege	3924	powershell.exe
Token: SeLoadDriverPrivilege	3924	powershell.exe
Token: SeSystemProfilePrivilege	3924	powershell.exe
Token: SeSystemtimePrivilege	3924	powershell.exe
Token: SeProfSingleProcessPrivilege	3924	powershell.exe
Token: SeIncBasePriorityPrivilege	3924	powershell.exe
Token: SeCreatePagefilePrivilege	3924	powershell.exe
Token: SeBackupPrivilege	3924	powershell.exe
Token: SeRestorePrivilege	3924	powershell.exe
Token: SeShutdownPrivilege	3924	powershell.exe
Token: SeDebugPrivilege	3924	powershell.exe
Token: SeSystemEnvironmentPrivilege	3924	powershell.exe
Token: SeRemoteShutdownPrivilege	3924	powershell.exe
Token: SeUndockPrivilege	3924	powershell.exe
Token: SeManageVolumePrivilege	3924	powershell.exe
Token: 33	3924	powershell.exe
Token: 34	3924	powershell.exe
Token: 35	3924	powershell.exe
Token: 36	3924	powershell.exe
Token: SeDebugPrivilege	2132	powershell.exe
Token: SeIncreaseQuotaPrivilege	2132	powershell.exe
Token: SeSecurityPrivilege	2132	powershell.exe
Token: SeTakeOwnershipPrivilege	2132	powershell.exe
Token: SeLoadDriverPrivilege	2132	powershell.exe
Token: SeSystemProfilePrivilege	2132	powershell.exe
Token: SeSystemtimePrivilege	2132	powershell.exe
Token: SeProfSingleProcessPrivilege	2132	powershell.exe
Token: SeIncBasePriorityPrivilege	2132	powershell.exe
Token: SeCreatePagefilePrivilege	2132	powershell.exe
Token: SeBackupPrivilege	2132	powershell.exe
Token: SeRestorePrivilege	2132	powershell.exe
Token: SeShutdownPrivilege	2132	powershell.exe
Token: SeDebugPrivilege	2132	powershell.exe
Token: SeSystemEnvironmentPrivilege	2132	powershell.exe
Token: SeRemoteShutdownPrivilege	2132	powershell.exe
Token: SeUndockPrivilege	2132	powershell.exe
Token: SeManageVolumePrivilege	2132	powershell.exe
Token: 33	2132	powershell.exe
Token: 34	2132	powershell.exe
Token: 35	2132	powershell.exe
Token: 36	2132	powershell.exe
Token: SeDebugPrivilege	688	powershell.exe
Token: SeIncreaseQuotaPrivilege	688	powershell.exe
Token: SeSecurityPrivilege	688	powershell.exe
Token: SeTakeOwnershipPrivilege	688	powershell.exe
Token: SeLoadDriverPrivilege	688	powershell.exe
Token: SeSystemProfilePrivilege	688	powershell.exe
Token: SeSystemtimePrivilege	688	powershell.exe
Token: SeProfSingleProcessPrivilege	688	powershell.exe
Token: SeIncBasePriorityPrivilege	688	powershell.exe
Token: SeCreatePagefilePrivilege	688	powershell.exe
Token: SeBackupPrivilege	688	powershell.exe
Token: SeRestorePrivilege	688	powershell.exe
Token: SeShutdownPrivilege	688	powershell.exe
Token: SeDebugPrivilege	688	powershell.exe
Token: SeSystemEnvironmentPrivilege	688	powershell.exe
Token: SeRemoteShutdownPrivilege	688	powershell.exe
Token: SeUndockPrivilege	688	powershell.exe
Token: SeManageVolumePrivilege	688	powershell.exe
Token: 33	688	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2820	XClient (1).exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 3924	2820	XClient (1).exe	86
PID 2820 wrote to memory of 3924	2820	XClient (1).exe	86
PID 2820 wrote to memory of 2132	2820	XClient (1).exe	89
PID 2820 wrote to memory of 2132	2820	XClient (1).exe	89
PID 2820 wrote to memory of 688	2820	XClient (1).exe	91
PID 2820 wrote to memory of 688	2820	XClient (1).exe	91
PID 2820 wrote to memory of 3300	2820	XClient (1).exe	93
PID 2820 wrote to memory of 3300	2820	XClient (1).exe	93
PID 2820 wrote to memory of 1476	2820	XClient (1).exe	96
PID 2820 wrote to memory of 1476	2820	XClient (1).exe	96
PID 2820 wrote to memory of 728	2820	XClient (1).exe	102
PID 2820 wrote to memory of 728	2820	XClient (1).exe	102
PID 2820 wrote to memory of 4080	2820	XClient (1).exe	104
PID 2820 wrote to memory of 4080	2820	XClient (1).exe	104
PID 4080 wrote to memory of 3884	4080	cmd.exe	106
PID 4080 wrote to memory of 3884	4080	cmd.exe	106

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 (1).exe
"C:\Users\Admin\AppData\Local\Temp\XClient (1).exe"
1⤵
- Checks computer location settings
- 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:2820
- 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\XClient (1).exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3924
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient (1).exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2132
- 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\Win32runtime.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:688
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Win32runtime.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:3300
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Win32runtime" /tr "C:\Users\Admin\AppData\Roaming\Win32runtime.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1476
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /delete /f /tn "Win32runtime"
  2⤵
  PID:728
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpE530.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4080
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:3884

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\powershell.exe.log

Filesize
3KB

MD5
3eb3833f769dd890afc295b977eab4b4

SHA1
e857649b037939602c72ad003e5d3698695f436f

SHA256
c485a6e2fd17c342fca60060f47d6a5655a65a412e35e001bb5bf88d96e6e485

SHA512
c24bbc8f278478d43756807b8c584d4e3fb2289db468bc92986a489f74a8da386a667a758360a397e77e018e363be8912ac260072fa3e31117ad0599ac749e72

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

Filesize
1KB

MD5
c5f67682ca7a065a4b73be7f11a53548

SHA1
f7439e2bdd1dccdfd581db2e24b7bd51b274837e

SHA256
4644634fe9c942d8f31365e20782bf623f10381766602cf34bd76ae1cc68785f

SHA512
4291d74ee55d41bdfe91d14e3a16a0e3cf592f077ffeb7424b7943ee4ab3a40e3b7cd1c3b9826110c46544d6e60aa9e933b473863f63b5b52a4013a50a9c0b82

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

Filesize
1KB

MD5
67362198aba3962fc88e26f88a5ee9fe

SHA1
95003f53d3f7da1fdb6e62922c3255c920c31435

SHA256
b477c050b026d30d5ce363e271ff46a5519f9217fcc51e5c4730e4646b881139

SHA512
d376f78d0700a636eb3ca95e9648a40114a9e973e0ca7382f313e63d7bb2506bc68e5751bcf247ac4556b1b935ebdf3452e01dcac96574b402140e498b934b6d

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

Filesize
1KB

MD5
74561307243e441f4fa8fe368e39bb11

SHA1
4061d097677f3845352347b9da31437f9899b2b9

SHA256
65209d1772df3a89db097e283a5935a59b444d385d74e00de5a0daed2f714141

SHA512
321abe316c5d0d57b30cc32d0e495bc1fe6a76cbe3dce2ba2110de0dce1fb9c0a3355a3a6096055b009bc3c936ae6f0ba31575cbfb7ca25fe76c3c3cf0795e4e

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_h0ouwld2.pkg.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE530.tmp.bat

Filesize
163B

MD5
1e90b128f42a4a9d769ef0ab2fd35866

SHA1
b6948a6d51f21c2f27606717bb2322a50ece58bc

SHA256
34fe79dcc341b08d70a35e3a9ac6a6c2a1801940012b70a6eb0bf1344d6f1081

SHA512
1738fffa1c042a3c97bbc65cbe054f0d293d6fc8dfd4be2b5f85866308be1d0bcc313f7e8bcd3153dff17353ff1ecb9515b62b4362c447d5fcfa20248aba5460

Download Submit
memory/2132-33-0x000002223CA40000-0x000002223CC5D000-memory.dmp

Filesize
2.1MB

Download
memory/2820-70-0x00007FFD9F960000-0x00007FFDA0422000-memory.dmp

Filesize
10.8MB

Download
memory/2820-55-0x00007FFD9F963000-0x00007FFD9F965000-memory.dmp

Filesize
8KB

Download
memory/2820-62-0x00007FFD9F960000-0x00007FFDA0422000-memory.dmp

Filesize
10.8MB

Download
memory/2820-0-0x00007FFD9F963000-0x00007FFD9F965000-memory.dmp

Filesize
8KB

Download
memory/2820-2-0x00007FFD9F960000-0x00007FFDA0422000-memory.dmp

Filesize
10.8MB

Download
memory/2820-1-0x0000000000090000-0x00000000000A0000-memory.dmp

Filesize
64KB

Download
memory/3300-57-0x000002EBF86C0000-0x000002EBF88DD000-memory.dmp

Filesize
2.1MB

Download
memory/3924-14-0x000002D7F8A50000-0x000002D7F8A72000-memory.dmp

Filesize
136KB

Download
memory/3924-20-0x00007FFD9F960000-0x00007FFDA0422000-memory.dmp

Filesize
10.8MB

Download
memory/3924-19-0x000002D7F8730000-0x000002D7F894D000-memory.dmp

Filesize
2.1MB

Download
memory/3924-16-0x00007FFD9F960000-0x00007FFDA0422000-memory.dmp

Filesize
10.8MB

Download
memory/3924-15-0x00007FFD9F960000-0x00007FFDA0422000-memory.dmp

Filesize
10.8MB

Download
memory/3924-4-0x00007FFD9F960000-0x00007FFDA0422000-memory.dmp

Filesize
10.8MB

Download
memory/3924-3-0x00007FFD9F960000-0x00007FFDA0422000-memory.dmp

Filesize
10.8MB

Download