Analysis
- max time kernel
148s - max time network
141s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/11/2026, 00:27
Static task
static1
Behavioral task
behavioral1
Sample
PO10007592_POU100075926.js
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
PO10007592_POU100075926.js
Resource
win11ltsc2024-20260911-en
General
- Target PO10007592_POU100075926.js
- Size 4.0MB
- Sample261102-ar7bcay1gy
- SHA256 b3ea10f3703f44cf8ed0fbd52464320ce6fc3c385e170912bb61e6d64be89592
- MD5 41d121fc95e295038510fd174f811925
- SHA1 c28d7e20758a81bf942b25c28267606b97f5462f
- SHA512 c9bb9e6aba91213bb741b1da19274ed535a12cec7950f60e4759b15a9135be421bdc2fe9dddff4cf2660189bf993d3cc2cecbb09714c45e17773f0ac8bf0ff3a
- SSDEEP 98304:Bf/AU2+/vJBBck4lgw/vtBt0qyMWxXXfxxEjk9DWquoPamZd4AFt8uMKIzaf/3lm:BLYgw/L8NxxAkAqRP9tJjvuycV
- TLSH T150165B7C0148DBB264EC252FC8DBBAD64B646C1BAE60AA3D35BC499DA64CF11371C374
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 800 KMFBRYLVTBCWKPAF.exe - Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 2 IoCs
description ioc Process Key enumerated \REGISTRY\USER\S-1-5-21-461973139-3212354679-1508698038-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook KMFBRYLVTBCWKPAF.exe Key opened \REGISTRY\USER\S-1-5-21-461973139-3212354679-1508698038-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook KMFBRYLVTBCWKPAF.exe - Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 2 IoCs
pid Process 800 KMFBRYLVTBCWKPAF.exe 800 KMFBRYLVTBCWKPAF.exe - Command and Scripting Interpreter: JavaScript 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 1304 cmd.exe - Reads the TCP/IP host and domain name from the registry 1 TTPs 1 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname KMFBRYLVTBCWKPAF.exe - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language KMFBRYLVTBCWKPAF.exe - Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A8CDFF1C-4878-43be-B5FD-F8091C1C60D0}\Instance\ wscript.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{d3162b92-9365-467a-956b-92703aca08af}\Instance\ wscript.exe - NTFS ADS 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\PO10007592_POU100075926.js:Zone.Identifier cmd.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4600 wrote to memory of 1304 4600 wscript.exe 89 PID 4600 wrote to memory of 800 4600 wscript.exe 91 - outlook_office_path 1 IoCs
description ioc Process Key enumerated \REGISTRY\USER\S-1-5-21-461973139-3212354679-1508698038-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook KMFBRYLVTBCWKPAF.exe
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\PO10007592_POU100075926.js1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4600 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c echo. > "C:\Users\Admin\AppData\Local\Temp\PO10007592_POU100075926.js:Zone.Identifier"2⤵
- Executes a command shell one-liner
- NTFS ADS
PID:1304
-
-
C:\Users\Admin\Documents\KMFBRYLVTBCWKPAF.exe"C:\Users\Admin\Documents\KMFBRYLVTBCWKPAF.exe" C:\Users\Admin\Documents\FAPKWCBTVLYRBFMK2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- outlook_office_path
PID:800
-
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2JavaScript
1Windows Command Shell
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\Documents\FAPKWCBTVLYRBFMK
- Size 937KB
- SHA256 1223e539c72fa5eadfc3477602577b01bb16b381a644d65483c24df6c050ffd4
- MD5 a04cd59da914812bb0ae30f6da69befe
- SHA1 f26c7b1da7c1ba8a91e1890afc2ca2f1dffb35ba
- SHA512 d862d82dfe310a78645554cb00be4aab64ab3f9cfc83e631735a33572b80300eac0e27d05726f226da9a231819ae404c5f8f6c6a07217716eac3c173a2117606
- SSDEEP 24576:qsVxX61d52qJbpFCxy2dsrrGhFDhR3bNTeqE6wNz3Wg:qsm4qtQsnAFlRLNTeqEtNz3Wg
- TLSH T17415AFC7B1CA2AE492A642F1CC670AD771B5C9EA070D17474F68C0F567512BCCBE983A
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\Documents\KMFBRYLVTBCWKPAF.exe
- Size 499KB
- SHA256 d447a06cba8d3dbe80e09d73dd64576836b258961ee0d3ba56cf26cea7962b49
- MD5 7675b38aabebc8427171447edd484b5b
- SHA1 145c72f8acdcd366869f955dffd000d3bc146b6e
- SHA512 bc9bddbee59f165742a3203f9e2ba9de409e66de6334cb352cded84cce3e1074dbd0ac17b29e58c8729906848b64d1486fb8c848ca15422127b2baeb4c5e5dbe
- SSDEEP 12288:HW7YOPcqPqvopYJNWGIbK8AJYlqWuSr7B/Uj:HW7RPcqPqvopYJYK8AyldpUj
- TLSH T176B43AC4BACB08F1E2A355B0C49BDB7F96349A050022D5BAFF5CBD59EC33746092725A
- MD5 SHA1 SHA512 SSDEEP TLSH