b0903b5836787cbabc1727cf36998c105f1936b0eabcf06d63fb17b3ab988848

Analysis

max time kernel
148s
max time network
134s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
06/08/2026, 23:12

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General

Target
b0903b5836787cbabc1727cf36998c105f1936b0eabcf06d63fb17b3ab988848.dll
Size 1.2MB
Sample260806-27ae4acj91
SHA256 b0903b5836787cbabc1727cf36998c105f1936b0eabcf06d63fb17b3ab988848
MD5 4b7e30bba774cdb19ef787981d63f0c6
SHA1 66d279f34f71759b2ef7ca565d363ce59627747d
SHA512 ebc2d281a2b51a9ec0e2c4e3de074b9a16c8652936470c478e8da889823bab6ba454c6ede632e7ce7ea0f2471d2243845c70b7a3bfac514fbbdd1a55b063eb9b
SSDEEP 12288:UpaihFROqjSwkSjzOeQHXECwS1klYKW63ir2EddVQP8rdldy0xNvpxwg:UpZhbmEWsw
TLSH
T188451801BAC1CD63CA760870592B96BE8130AC38E7F1D75B729C69797AF5B18DF94380
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

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	regsvr32.exe

Modifies registry class 49 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\Shell\Open\Command\ = "rundll32.exe zipfldr.dll,RouteTheCall %L"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E88DCCE0-B7B3-11d1-A9F0-00AA0060FA31}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E88DCCE0-B7B3-11d1-A9F0-00AA0060FA31}\ProgId	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{888DCA60-FC0A-11CF-8F0F-00C04FD7D062}\ShellEx	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{888DCA60-FC0A-11CF-8F0F-00C04FD7D062}\ShellEx\DropHandler	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Applications\zipfldr.dll\NoOpenWith	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\ShellEx\DropHandler\FIXME = "This is a HACK! It must be {ED9D80B9-D157-457B-9192-0E7280313BF0}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{888DCA60-FC0A-11CF-8F0F-00C04FD7D062}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\Shell	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\Shell\Open\command	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\ShellEx\ContextMenuHandlers	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.zip\CompressedFolder\ShellNew	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.zip\CompressedFolder\OpenWithProgids\CompressedFolder	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000_Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\Shell\Open	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.zip\PerceivedType = "compressed"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.zip\CompressedFolder\OpenWithProgids	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.zfsendtotarget\ = "CLSID\\{888DCA60-FC0A-11CF-8F0F-00C04FD7D062}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E88DCCE0-B7B3-11d1-A9F0-00AA0060FA31}\ShellFolder	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\CLSID\ = "{E88DCCE0-B7B3-11D1-A9F0-00AA0060FA31}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b0903b5836787cbabc1727cf36998c105f1936b0eabcf06d63fb17b3ab988848.dll"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\Shell\Open\BrowserFlags = "16"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\Shell\Open\ExplorerFlags = "16"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E88DCCE0-B7B3-11d1-A9F0-00AA0060FA31}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B8CDCB65-B1BF-4B42-9428-1DFDB7EE92AF}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Applications\zipfldr.dll	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\ShellEx\ContextMenuHandlers\{B8CDCB65-B1BF-4B42-9428-1DFDB7EE92AF}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.zip\Content Type = "application/x-zip-compressed"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.zip\CompressedFolder	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ed9d80b9-d157-457b-9192-0e7280313bf0}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{888DCA60-FC0A-11CF-8F0F-00C04FD7D062}\DefaultIcon	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{888DCA60-FC0A-11CF-8F0F-00C04FD7D062}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\shellex	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\ShellEx\DropHandler	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.zip\CompressedFolder\ShellNew\Data = 504b0506000000000000000000000000000000000000	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.zip\CompressedFolder\PersistentHandler	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.zip\CompressedFolder\PersistentHandler\ = "{098F2470-BAE0-11CD-B579-08002B30BFEB}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED9D80B9-D157-457B-9192-0E7280313BF0}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Applications	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.zip	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.zip\ = "CompressedFolder"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.ZFSendToTarget	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b8cdcb65-b1bf-4b42-9428-1dfdb7ee92af}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\FriendlyTypeName = "@C:\\Users\\Admin\\AppData\\Local\\Temp\\b0903b5836787cbabc1727cf36998c105f1936b0eabcf06d63fb17b3ab988848.dll,-10195"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\DefaultIcon	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\ShellEx\ContextMenuHandlers\{b8cdcb65-b1bf-4b42-9428-1dfdb7ee92af}\ = "Compressed (zipped) Folder Menu"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CompressedFolder\ShellEx\DropHandler\ = "{E88DCCE0-B7B3-11D1-A9F0-00AA0060FA31}"	regsvr32.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 2188 wrote to memory of 268	2188	regsvr32.exe	89

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b0903b5836787cbabc1727cf36998c105f1936b0eabcf06d63fb17b3ab988848.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2188
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b0903b5836787cbabc1727cf36998c105f1936b0eabcf06d63fb17b3ab988848.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:268

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

memory/268-0-0x0000000070300000-0x0000000070301000-memory.dmp

Download

memory/268-1-0x00000000702B0000-0x00000000703EB000-memory.dmp