xworm | 67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766

Analysis

max time kernel
150s
max time network
145s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
12/07/2026, 14:29

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General

Target
67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766.exe
Size 896KB
Sample260712-rtxclabw6p
SHA256 67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766
MD5 d1cec83bd71edf40016368934535790c
SHA1 288afa6cc4db713f707aca887c25d820318b35c8
SHA512 c3d090f3920a7e9a13712f6926e720363874f09b894753820e9086ff8063ea1c4ce39ae2eec1d0ee3485eb29ad524924eb9bdbb5f604b8903836db95c5a6c431
SSDEEP 24576:rG3kAEFT0DXQWa5GRPnyMH+C9NH6sz6kpi7TYKHK4H3Y:sk3FQD/ayny6x9zUTYKHDH3
TLSH
T18F15F1142219CD46D4AE0BB86A61E37417B88E9DE822D3139FD1BFDBBC767B06D00257
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

151.244.232.26:443

Mutex

Uwzmx31jE3HrW27j

Attributes

install_file
USB.exe

aes.plain

Signatures

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

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/400-21-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2996	powershell.exe
2668	powershell.exe
4484	powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
2744	uNvfhms.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-1-5-21-2246396966-3025826688-3847171515-1000\Software\Microsoft\Windows\CurrentVersion\Run\uNvfhms = "\"C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\powershell.exe\" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File \"C:\\Users\\Admin\\AppData\\Local\\Temp\\u1foh3mqvxx.ps1\""	67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5784 set thread context of 400	5784	67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766.exe	90
PID 2744 set thread context of 5984	2744	uNvfhms.exe	98

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uNvfhms.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
5784	67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766.exe
2996	powershell.exe
5784	67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766.exe
2996	powershell.exe
4484	powershell.exe
4484	powershell.exe
2744	uNvfhms.exe
2744	uNvfhms.exe
2668	powershell.exe
2668	powershell.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	5784	67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766.exe
Token: SeDebugPrivilege	2996	powershell.exe
Token: SeDebugPrivilege	400	MSBuild.exe
Token: SeDebugPrivilege	4484	powershell.exe
Token: SeIncreaseQuotaPrivilege	2996	powershell.exe
Token: SeSecurityPrivilege	2996	powershell.exe
Token: SeTakeOwnershipPrivilege	2996	powershell.exe
Token: SeLoadDriverPrivilege	2996	powershell.exe
Token: SeSystemProfilePrivilege	2996	powershell.exe
Token: SeSystemtimePrivilege	2996	powershell.exe
Token: SeProfSingleProcessPrivilege	2996	powershell.exe
Token: SeIncBasePriorityPrivilege	2996	powershell.exe
Token: SeCreatePagefilePrivilege	2996	powershell.exe
Token: SeBackupPrivilege	2996	powershell.exe
Token: SeRestorePrivilege	2996	powershell.exe
Token: SeShutdownPrivilege	2996	powershell.exe
Token: SeDebugPrivilege	2996	powershell.exe
Token: SeSystemEnvironmentPrivilege	2996	powershell.exe
Token: SeRemoteShutdownPrivilege	2996	powershell.exe
Token: SeUndockPrivilege	2996	powershell.exe
Token: SeManageVolumePrivilege	2996	powershell.exe
Token: 33	2996	powershell.exe
Token: 34	2996	powershell.exe
Token: 35	2996	powershell.exe
Token: 36	2996	powershell.exe
Token: SeDebugPrivilege	2744	uNvfhms.exe
Token: SeDebugPrivilege	2668	powershell.exe
Token: SeDebugPrivilege	5984	MSBuild.exe
Token: SeIncreaseQuotaPrivilege	2668	powershell.exe
Token: SeSecurityPrivilege	2668	powershell.exe
Token: SeTakeOwnershipPrivilege	2668	powershell.exe
Token: SeLoadDriverPrivilege	2668	powershell.exe
Token: SeSystemProfilePrivilege	2668	powershell.exe
Token: SeSystemtimePrivilege	2668	powershell.exe
Token: SeProfSingleProcessPrivilege	2668	powershell.exe
Token: SeIncBasePriorityPrivilege	2668	powershell.exe
Token: SeCreatePagefilePrivilege	2668	powershell.exe
Token: SeBackupPrivilege	2668	powershell.exe
Token: SeRestorePrivilege	2668	powershell.exe
Token: SeShutdownPrivilege	2668	powershell.exe
Token: SeDebugPrivilege	2668	powershell.exe
Token: SeSystemEnvironmentPrivilege	2668	powershell.exe
Token: SeRemoteShutdownPrivilege	2668	powershell.exe
Token: SeUndockPrivilege	2668	powershell.exe
Token: SeManageVolumePrivilege	2668	powershell.exe
Token: 33	2668	powershell.exe
Token: 34	2668	powershell.exe
Token: 35	2668	powershell.exe
Token: 36	2668	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 5784 wrote to memory of 2996	5784	67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766.exe	88
PID 5784 wrote to memory of 400	5784	67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766.exe	90
PID 5784 wrote to memory of 400	5784	67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766.exe	90
PID 5784 wrote to memory of 400	5784	67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766.exe	90
PID 5784 wrote to memory of 400	5784	67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766.exe	90
PID 5784 wrote to memory of 400	5784	67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766.exe	90
PID 4484 wrote to memory of 2744	4484	powershell.exe	93
PID 2744 wrote to memory of 2668	2744	uNvfhms.exe	96
PID 2744 wrote to memory of 5984	2744	uNvfhms.exe	98
PID 2744 wrote to memory of 5984	2744	uNvfhms.exe	98
PID 2744 wrote to memory of 5984	2744	uNvfhms.exe	98
PID 2744 wrote to memory of 5984	2744	uNvfhms.exe	98
PID 2744 wrote to memory of 5984	2744	uNvfhms.exe	98

C:\Users\Admin\AppData\Local\Temp\67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766.exe
"C:\Users\Admin\AppData\Local\Temp\67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5784
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2996
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:400

C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File "C:\Users\Admin\AppData\Local\Temp\u1foh3mqvxx.ps1"
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4484
- C:\Users\Admin\AppData\Roaming\uNvfhms.exe
  "C:\Users\Admin\AppData\Roaming\uNvfhms.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2744
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\uNvfhms.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2668
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:5984

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 21KB
SHA256 440a813f25ad94d4386195f7bf4a56c2a62b9cf2e5d1c4604173348351a8882e
MD5 9d94c605e360219ee45e134404ed002f
SHA1 3b55f309aa7a38ff5228f10e9fc1a2d5e88c6119
SHA512 94d5ae141a1726826e437d1e063c9a516165e9e5d3610154aea5f9b9304f905fdb9d19a311b8c26c380c89facdead9acfa40b764aef34f6da0683b992964a30d
SSDEEP 384:21eBaoT1iBGMiGW14bW708T+j1YVwYAeZIAXr4B+ZWEWtzKwQvYbhNaPUlRtPZRS:WexZ6GM5Wiqg8T+s7FIAXrq+2VPbhNaB
TLSH
T154A2B478213F6DC7D8D226B010D10AA7FBE4D489DAF611D4BF2BDE2F4C90EB64A60524
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

__PSScriptPolicyTest_an3liyj5.g1g.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_an3liyj5.g1g.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

u1foh3mqvxx.ps1

Path C:\Users\Admin\AppData\Local\Temp\u1foh3mqvxx.ps1
Size 1KB
SHA256 c04bf2490f433cf9e8ff274c862f37c430ce6719626da7942d90989979e46049
MD5 87bd3e6ff3b63e2ff824b0c32ae71966
SHA1 270fa4d47aebee756b12320022d76470d10da338
SHA512 11def1f5cd89f5e7c1ee44ece6b3eac557f04b7229f2828ca3d4fe0a845f23e27d993c79b05d76edfb372e4efb09878999548e523476e68fe9944553f0d33534
TLSH
T14E11E0478E8903C6406403F54A1335CDB56DA0CB1BAF019089ECB4EEB36BE63346ACE8
MD5 SHA1 SHA512 TLSH

Submit Download

uNvfhms.exe

Path C:\Users\Admin\AppData\Roaming\uNvfhms.exe
Size 896KB
SHA256 67851f424ccbe66c1d79bdb2c7dac0bcb2f833d6225014ddbf143974d5d96766
MD5 d1cec83bd71edf40016368934535790c
SHA1 288afa6cc4db713f707aca887c25d820318b35c8
SHA512 c3d090f3920a7e9a13712f6926e720363874f09b894753820e9086ff8063ea1c4ce39ae2eec1d0ee3485eb29ad524924eb9bdbb5f604b8903836db95c5a6c431
SSDEEP 24576:rG3kAEFT0DXQWa5GRPnyMH+C9NH6sz6kpi7TYKHK4H3Y:sk3FQD/ayny6x9zUTYKHDH3
TLSH
T18F15F1142219CD46D4AE0BB86A61E37417B88E9DE822D3139FD1BFDBBC767B06D00257
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/400-21-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/400-49-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/400-27-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/400-25-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/2668-59-0x0000000007A20000-0x0000000007AC3000-memory.dmp

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memory/2668-56-0x00000000727F0000-0x000000007283C000-memory.dmp

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memory/2668-55-0x00000000069F0000-0x0000000006A3C000-memory.dmp

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memory/2668-53-0x0000000006230000-0x000000000658B000-memory.dmp

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memory/2996-37-0x0000000075980000-0x00000000759CC000-memory.dmp

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memory/2996-44-0x0000000007BD0000-0x0000000007BDA000-memory.dmp

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memory/2996-15-0x0000000003010000-0x0000000003046000-memory.dmp

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memory/2996-17-0x0000000005AD0000-0x000000000611A000-memory.dmp

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memory/2996-16-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/2996-18-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/2996-19-0x0000000006120000-0x0000000006186000-memory.dmp

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memory/2996-48-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/2996-20-0x0000000006280000-0x00000000062E6000-memory.dmp

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memory/2996-22-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/2996-45-0x0000000007DD0000-0x0000000007E66000-memory.dmp

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memory/2996-43-0x0000000007B60000-0x0000000007B7A000-memory.dmp

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memory/2996-42-0x00000000081A0000-0x000000000881C000-memory.dmp

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memory/2996-28-0x0000000006740000-0x000000000675E000-memory.dmp

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memory/2996-29-0x0000000006A10000-0x0000000006A5C000-memory.dmp

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memory/2996-41-0x0000000007A20000-0x0000000007AC3000-memory.dmp

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memory/2996-40-0x0000000006DC0000-0x0000000006DE0000-memory.dmp

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memory/2996-36-0x00000000079E0000-0x0000000007A16000-memory.dmp

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memory/4484-32-0x0000026A5ABD0000-0x0000026A5ABF2000-memory.dmp

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memory/5784-11-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/5784-5-0x0000000005710000-0x0000000005722000-memory.dmp

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memory/5784-0-0x00000000750E2000-0x00000000750E3000-memory.dmp

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memory/5784-7-0x00000000057E0000-0x00000000057EA000-memory.dmp

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memory/5784-10-0x00000000750E2000-0x00000000750E3000-memory.dmp

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memory/5784-26-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/5784-9-0x0000000008240000-0x000000000825E000-memory.dmp

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memory/5784-6-0x0000000005760000-0x0000000005782000-memory.dmp

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memory/5784-13-0x0000000008830000-0x00000000088CC000-memory.dmp

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memory/5784-12-0x00000000086F0000-0x0000000008792000-memory.dmp

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memory/5784-8-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/5784-4-0x00000000053B0000-0x000000000570B000-memory.dmp

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memory/5784-3-0x0000000005310000-0x00000000053A2000-memory.dmp

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memory/5784-2-0x00000000058D0000-0x0000000005E8A000-memory.dmp

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memory/5784-1-0x00000000006F0000-0x00000000007D6000-memory.dmp

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