2bec28d8646a16ac1481603d33ebb7ed0f2b0d1ef7ce7fad484c71d720950234

Analysis

max time kernel
298s
max time network
204s
platform
windows10-2004_x64
resource
win10v2004-20260130-en
resource tags

arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
18/04/2026, 15:58

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Report Analysis Logs

General

Target
18042026_1558_17042026_20240108-051513-451604_Merge_453720.pdf.js
Size 2.0MB
Sample260418-tekflacx3p
SHA256 2bec28d8646a16ac1481603d33ebb7ed0f2b0d1ef7ce7fad484c71d720950234
MD5 7166bc29581742807549a05101e395e2
SHA1 66c33c1098a28bbcf92d3b29288e118552319c81
SHA512 9fb72ab69b1c4c61a5c28ad13234e0f1d14bb6247a981280afa2763e67745b69c76bbd2cee0ff4aa2948ccd6dc42568d126fc7ba8c81f8360e3f93b22b0606b6
SSDEEP 24576:2YT0oMK58nEg3kUlAicT0G0hLwPGPiqAVR3ruD982b5EWpMFuMT/34yAt5wIsdtz:goPCE3a5wUog912TC2EjgamNj
TLSH
T14DA5021589C42FB8CFEC561890FE160A93F04A8A5517B98EEB73BD57BFE7A04410B19C
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

execution persistence

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2396	powershell.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SystemUpdate_nkb97my5xaFO_1776527895861.lnk	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-721190819-434563495-2007910846-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SystemUpdate_nkb97my5xaFO_1776527895861 = "powershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -File \"C:\\Temp\\ps_nkb97my5xaFO_1776527895861.ps1\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SystemUpdate_nkb97my5xaFO_1776527895861 = "powershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -File \"C:\\Temp\\ps_nkb97my5xaFO_1776527895861.ps1\""	wscript.exe

ConfuserEx .NET packer 1 IoCs

Detects ConfuserEx .NET packer.

resource	yara_rule
behavioral1/memory/2396-24-0x0000020BA6130000-0x0000020BA614A000-memory.dmp	ConfuserEx

Suspicious use of SetThreadContext 9 IoCs

description	pid	Process	procid_target
PID 2396 set thread context of 1204	2396	powershell.exe	96
PID 2396 set thread context of 4012	2396	powershell.exe	101
PID 2396 set thread context of 3888	2396	powershell.exe	104
PID 2396 set thread context of 4372	2396	powershell.exe	107
PID 2396 set thread context of 4412	2396	powershell.exe	110
PID 2396 set thread context of 5572	2396	powershell.exe	116
PID 2396 set thread context of 5276	2396	powershell.exe	121
PID 2396 set thread context of 5200	2396	powershell.exe	126
PID 2396 set thread context of 3516	2396	powershell.exe	131

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 9 IoCs

pid	pid_target	Process	procid_target
1108	1204	WerFault.exe	96
3908	4012	WerFault.exe	101
5664	3888	WerFault.exe	104
1300	4372	WerFault.exe	107
468	4412	WerFault.exe	110
1624	5572	WerFault.exe	116
4992	5276	WerFault.exe	121
2428	5200	WerFault.exe	126
2176	3516	WerFault.exe	131

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
2396	powershell.exe
2396	powershell.exe
2240	powershell.exe
2240	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe
2396	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2396	powershell.exe
Token: SeDebugPrivilege	2240	powershell.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 3808 wrote to memory of 2396	3808	wscript.exe	86
PID 2396 wrote to memory of 4808	2396	powershell.exe	91
PID 2396 wrote to memory of 4136	2396	powershell.exe	92
PID 2396 wrote to memory of 5936	2396	powershell.exe	93
PID 2396 wrote to memory of 6052	2396	powershell.exe	94
PID 2396 wrote to memory of 1176	2396	powershell.exe	95
PID 2396 wrote to memory of 1204	2396	powershell.exe	96
PID 2396 wrote to memory of 1204	2396	powershell.exe	96
PID 2396 wrote to memory of 1204	2396	powershell.exe	96
PID 2396 wrote to memory of 4012	2396	powershell.exe	101
PID 2396 wrote to memory of 4012	2396	powershell.exe	101
PID 2396 wrote to memory of 4012	2396	powershell.exe	101
PID 2396 wrote to memory of 3888	2396	powershell.exe	104
PID 2396 wrote to memory of 3888	2396	powershell.exe	104
PID 2396 wrote to memory of 3888	2396	powershell.exe	104
PID 2396 wrote to memory of 4372	2396	powershell.exe	107
PID 2396 wrote to memory of 4372	2396	powershell.exe	107
PID 2396 wrote to memory of 4372	2396	powershell.exe	107
PID 2396 wrote to memory of 4412	2396	powershell.exe	110
PID 2396 wrote to memory of 4412	2396	powershell.exe	110
PID 2396 wrote to memory of 4412	2396	powershell.exe	110
PID 2396 wrote to memory of 5836	2396	powershell.exe	115
PID 2396 wrote to memory of 5572	2396	powershell.exe	116
PID 2396 wrote to memory of 5572	2396	powershell.exe	116
PID 2396 wrote to memory of 5572	2396	powershell.exe	116
PID 2396 wrote to memory of 5276	2396	powershell.exe	121
PID 2396 wrote to memory of 5276	2396	powershell.exe	121
PID 2396 wrote to memory of 5276	2396	powershell.exe	121
PID 2396 wrote to memory of 5200	2396	powershell.exe	126
PID 2396 wrote to memory of 5200	2396	powershell.exe	126
PID 2396 wrote to memory of 5200	2396	powershell.exe	126
PID 2396 wrote to memory of 3516	2396	powershell.exe	131
PID 2396 wrote to memory of 3516	2396	powershell.exe	131
PID 2396 wrote to memory of 3516	2396	powershell.exe	131

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\18042026_1558_17042026_20240108-051513-451604_Merge_453720.pdf.js
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3808
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -NonInteractive -NoLogo -File "C:\Temp\ps_nkb97my5xaFO_1776527895861.ps1"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2396
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:4808
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:4136
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:5936
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:6052
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:1176
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:1204
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1204 -s 184
      4⤵
      Program crash
      PID:1108
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:4012
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4012 -s 184
      4⤵
      Program crash
      PID:3908
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:3888
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3888 -s 184
      4⤵
      Program crash
      PID:5664
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:4372
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 184
      4⤵
      Program crash
      PID:1300
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:4412
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4412 -s 184
      4⤵
      Program crash
      PID:468
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:5836
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:5572
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5572 -s 184
      4⤵
      Program crash
      PID:1624
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:5276
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5276 -s 184
      4⤵
      Program crash
      PID:4992
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:5200
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5200 -s 184
      4⤵
      Program crash
      PID:2428
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:3516
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3516 -s 184
      4⤵
      Program crash
      PID:2176

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1204 -ip 1204
1⤵
PID:5056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4012 -ip 4012
1⤵
PID:3724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3888 -ip 3888
1⤵
PID:2076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4372 -ip 4372
1⤵
PID:2068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4412 -ip 4412
1⤵
PID:2908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 5572 -ip 5572
1⤵
PID:4248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5276 -ip 5276
1⤵
PID:1616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 5200 -ip 5200
1⤵
PID:6068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3516 -ip 3516
1⤵
PID:2480

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

ps_nkb97my5xaFO_1776527895861.ps1

Path C:\Temp\ps_nkb97my5xaFO_1776527895861.ps1
Size 1.5MB
SHA256 8b586abbdba8138d16b96ed703b3d87254d31fc724441ac5822a529790ab6e28
MD5 db15bc0d98dc3b6b67fc28e49abd0d13
SHA1 6437f0b778a8d5d588eba0e9a032daad68711392
SHA512 85dea141239691361478ad6b7046da6d67b44390a1fbe428dc765291253198b59aafd54ea4b89450c7a6918b982a374f3862b211b13c80621b39f4642f6d97ab
SSDEEP 24576:LTgSBVYOiZE5kr5PUzhGZsb8iSLSk15GKUfqIuSYY6ks2l:HnUV5ZsbLSLWyF/m
TLSH
T10A6533113F9E1CFE4338B208A59F694867E34B74F05AD9D66AD801E706DE7CA442392F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

__PSScriptPolicyTest_ffvpgt0e.quf.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ffvpgt0e.quf.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/1204-26-0x0000000000400000-0x0000000000446000-memory.dmp

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memory/2240-36-0x000001E5E3FE0000-0x000001E5E404B000-memory.dmp

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memory/2240-35-0x000001E5E26C0000-0x000001E5E26CC000-memory.dmp

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memory/2240-14-0x000001E5FC720000-0x000001E5FC730000-memory.dmp

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memory/2240-13-0x000001E5FC720000-0x000001E5FC730000-memory.dmp

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memory/2240-22-0x000001E5FC680000-0x000001E5FC6C4000-memory.dmp

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memory/2240-23-0x000001E5FCBF0000-0x000001E5FCC66000-memory.dmp

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memory/2240-32-0x000001E5FC720000-0x000001E5FC730000-memory.dmp

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memory/2240-31-0x000001E5FC720000-0x000001E5FC730000-memory.dmp

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memory/2396-27-0x0000020B8D930000-0x0000020B8D940000-memory.dmp

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memory/2396-3-0x0000020B8D930000-0x0000020B8D940000-memory.dmp

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memory/2396-28-0x0000020B8D930000-0x0000020B8D940000-memory.dmp

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memory/2396-25-0x0000020BA6150000-0x0000020BA6156000-memory.dmp

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memory/2396-24-0x0000020BA6130000-0x0000020BA614A000-memory.dmp

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memory/2396-33-0x0000020B8D860000-0x0000020B8D86C000-memory.dmp

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memory/2396-34-0x0000020BA5F80000-0x0000020BA5FEB000-memory.dmp

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memory/2396-4-0x0000020BA5F50000-0x0000020BA5F72000-memory.dmp

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memory/2396-2-0x0000020B8D930000-0x0000020B8D940000-memory.dmp

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memory/3808-30-0x000001C2A4770000-0x000001C2A477C000-memory.dmp

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memory/3808-29-0x000001C2A2A50000-0x000001C2A2AFC000-memory.dmp

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memory/3808-48-0x000001C2A2A50000-0x000001C2A2AFC000-memory.dmp

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memory/3808-71-0x000001C2A4770000-0x000001C2A477C000-memory.dmp

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