xworm | 396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
30/08/2026, 21:31

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General

Target
396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe
Size 833KB
Sample260830-1demaaak2t
SHA256 396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850
MD5 dc95438760cc8ae9e8b9bcbfa6f63da3
SHA1 7e5b9bc2c4c04125bb903ae5786788bf36c895ca
SHA512 94fe8dca6a5751cbc87511dd2ce4c373181e7d022360bef269eb6f59700fd476a446ae578030afa0a435659911b124819bab3a94bf11bfed91fd73a0f10cb401
SSDEEP 24576:L9jBQ++rL6SK2+yQev/JGQcqyIPuQR+io:L9jBQ++vPKlyQwJ+q1PuQRa
TLSH
T15805F2083799ED06D4655FB45C31F7B40FB46DD5A820D2078EFABEEBB835B45A848283
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

31.56.209.234:443

Mutex

6LTYhMtYJSwSKkQV

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/784-13-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4240	powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
1968	hfL.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-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\hfL = "\"C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\powershell.exe\" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command \"$z5xnvd=[System.Environment]::TickCount;$qnrxc2=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('U3RhcnQtUHJvY2Vzcw==')));$dzhjzi=6630;$upsey2=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXGhmTC5leGU=')));$hpxxv5=Get-Date;& $qnrxc2 -FilePath $upsey2\""	396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3968 set thread context of 784	3968	396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe	85
PID 1968 set thread context of 3100	1968	hfL.exe	97

System Location Discovery: System Language Discovery 1 TTPs 4 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	396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hfL.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4240	powershell.exe
4240	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4240	powershell.exe
Token: SeDebugPrivilege	784	MSBuild.exe
Token: SeDebugPrivilege	3100	MSBuild.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3968 wrote to memory of 784	3968	396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe	85
PID 3968 wrote to memory of 784	3968	396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe	85
PID 3968 wrote to memory of 784	3968	396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe	85
PID 3968 wrote to memory of 784	3968	396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe	85
PID 3968 wrote to memory of 784	3968	396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe	85
PID 4240 wrote to memory of 1968	4240	powershell.exe	88
PID 1968 wrote to memory of 3100	1968	hfL.exe	97
PID 1968 wrote to memory of 3100	1968	hfL.exe	97
PID 1968 wrote to memory of 3100	1968	hfL.exe	97
PID 1968 wrote to memory of 3100	1968	hfL.exe	97
PID 1968 wrote to memory of 3100	1968	hfL.exe	97

C:\Users\Admin\AppData\Local\Temp\396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe
"C:\Users\Admin\AppData\Local\Temp\396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3968
- 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:784

C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$z5xnvd=[System.Environment]::TickCount;$qnrxc2=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('U3RhcnQtUHJvY2Vzcw==')));$dzhjzi=6630;$upsey2=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXGhmTC5leGU=')));$hpxxv5=Get-Date;& $qnrxc2 -FilePath $upsey2"
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4240
- C:\Users\Admin\AppData\Roaming\hfL.exe
  "C:\Users\Admin\AppData\Roaming\hfL.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1968
- - 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:3100

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 Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

__PSScriptPolicyTest_fod2sqqz.o4j.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fod2sqqz.o4j.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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hfL.exe

Path C:\Users\Admin\AppData\Roaming\hfL.exe
Size 833KB
SHA256 396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850
MD5 dc95438760cc8ae9e8b9bcbfa6f63da3
SHA1 7e5b9bc2c4c04125bb903ae5786788bf36c895ca
SHA512 94fe8dca6a5751cbc87511dd2ce4c373181e7d022360bef269eb6f59700fd476a446ae578030afa0a435659911b124819bab3a94bf11bfed91fd73a0f10cb401
SSDEEP 24576:L9jBQ++rL6SK2+yQev/JGQcqyIPuQR+io:L9jBQ++vPKlyQwJ+q1PuQRa
TLSH
T15805F2083799ED06D4655FB45C31F7B40FB46DD5A820D2078EFABEEBB835B45A848283
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/784-13-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/784-31-0x0000000005150000-0x0000000005160000-memory.dmp

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memory/784-30-0x00000000058A0000-0x0000000005906000-memory.dmp

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memory/784-24-0x0000000005150000-0x0000000005160000-memory.dmp

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memory/1968-29-0x0000000006CC0000-0x0000000006CE4000-memory.dmp

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memory/3968-4-0x0000000005330000-0x000000000533A000-memory.dmp

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memory/3968-8-0x00000000079B0000-0x0000000007A4C000-memory.dmp

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memory/3968-9-0x0000000007A50000-0x0000000007AFA000-memory.dmp

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memory/3968-7-0x0000000005360000-0x0000000005370000-memory.dmp

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memory/3968-6-0x0000000005360000-0x0000000005370000-memory.dmp

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memory/3968-5-0x0000000005580000-0x00000000055A4000-memory.dmp

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memory/3968-0-0x0000000000870000-0x0000000000946000-memory.dmp

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memory/3968-3-0x0000000005360000-0x0000000005370000-memory.dmp

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memory/3968-2-0x0000000005390000-0x0000000005422000-memory.dmp

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memory/3968-1-0x0000000005A80000-0x0000000006024000-memory.dmp

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memory/4240-15-0x0000023925730000-0x0000023925740000-memory.dmp

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memory/4240-23-0x0000023940670000-0x0000023940692000-memory.dmp

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