9f8ac42c6b88e50d04f8c0f2c45afd9387997345f4617280d057df7f03363bca

Analysis

max time kernel
93s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2024 05:06

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General

Target

flash.dll
Size

917KB
MD5

fc3e17e12c2e31fac34b416b3dab829f
SHA1

ca33d1fa3d27c67c8bf2503a7474ac4f9223ed49
SHA256

471643ea9df42cc168412f33720f5b8cb1b391555cc795a5313224565274e9c0
SHA512

01a35672f70fcec69136475fab9ed643364af1683d49cb07cf6e5e47f003e2b8d0a553c52c42222c9ab7be4014f4e31a4701d30e28acd3c92a5407af4cc9a4fe
SSDEEP

24576:VvGzbaRNTt7tM7n0Nxt4oqN2eD65QmPNwJLKkn3WfhZXp:xmsxtJQn0Tt4rK5QmPNw4knGJpp

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 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ShockwaveFlash.ShockwaveFlash.4\ = "Shockwave Flash Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D27CDB6E-AE6D-11cf-96B8-444553540000}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D27CDB6E-AE6D-11cf-96B8-444553540000}\VersionIndependentProgID\ = "ShockwaveFlash.ShockwaveFlash"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\FlashProp.FlashProp.1\CLSID\ = "{1171A62F-05D2-11D1-83FC-00A0C9089C5A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1171A62F-05D2-11D1-83FC-00A0C9089C5A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MacromediaFlashPaper.MacromediaFlashPaper\ = "Macromedia Flash Paper"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ShockwaveFlash.ShockwaveFlash.3\CLSID\ = "{D27CDB6E-AE6D-11cf-96B8-444553540000}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\FlashFactory.FlashFactory\CurVer\ = "FlashFactory.FlashFactory.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ShockwaveFlash.ShockwaveFlash.5	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D27CDB6E-AE6D-11cf-96B8-444553540000}\MiscStatus\1\ = "131473"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mfp\ = "MacromediaFlashPaper.MacromediaFlashPaper"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mfp\Content Type = "application/x-shockwave-flash"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D27CDB6B-AE6D-11CF-96B8-444553540000}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MacromediaFlashPaper.MacromediaFlashPaper	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\FlashFactory.FlashFactory.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{D27CDB6D-AE6D-11CF-96B8-444553540000}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MacromediaFlashPaper.MacromediaFlashPaper\DefaultIcon\ = "%ProgramFiles(x86)%\\Internet Explorer\\iexplore.exe,-17"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D27CDB6E-AE6D-11cf-96B8-444553540000}\ToolboxBitmap32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\flash.dll, 1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D27CDB6E-AE6D-11cf-96B8-444553540000}\Implemented Categories\{7DD95802-9882-11CF-9FA9-00AA006C42C4}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sol\Content Type = "text/plain"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D27CDB6B-AE6D-11CF-96B8-444553540000}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{D27CDB6D-AE6D-11CF-96B8-444553540000}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{57A0E747-3863-4D20-A811-950C84F1DB9B}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ShockwaveFlash.ShockwaveFlash.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ShockwaveFlash.ShockwaveFlash\CurVer\ = "ShockwaveFlash.ShockwaveFlash.7"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D27CDB6E-AE6D-11cf-96B8-444553540000}\MiscStatus\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D27CDB70-AE6D-11cf-96B8-444553540000}\ProgID\ = "FlashFactory.FlashFactory.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{D27CDB6D-AE6D-11CF-96B8-444553540000}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ShockwaveFlash.ShockwaveFlash\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D27CDB6E-AE6D-11cf-96B8-444553540000}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{D27CDB6D-AE6D-11CF-96B8-444553540000}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ShockwaveFlash.ShockwaveFlash.5\CLSID\ = "{D27CDB6E-AE6D-11cf-96B8-444553540000}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D27CDB6E-AE6D-11cf-96B8-444553540000}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D27CDB70-AE6D-11cf-96B8-444553540000}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\flash.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.swf\Content Type = "application/x-shockwave-flash"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\application/futuresplash\CLSID = "{D27CDB6E-AE6D-11cf-96B8-444553540000}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{D27CDB6C-AE6D-11CF-96B8-444553540000}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{D27CDB6D-AE6D-11CF-96B8-444553540000}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{57A0E747-3863-4D20-A811-950C84F1DB9B}\ = "IFlashAccessibility"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ShockwaveFlash.ShockwaveFlash.4	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ShockwaveFlash.ShockwaveFlash.7\CLSID\ = "{D27CDB6E-AE6D-11cf-96B8-444553540000}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\application/x-shockwave-flash\CLSID = "{D27CDB6E-AE6D-11cf-96B8-444553540000}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D27CDB6B-AE6D-11CF-96B8-444553540000}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{D27CDB6D-AE6D-11CF-96B8-444553540000}\ = "_IShockwaveFlashEvents"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{57A0E746-3863-4D20-A811-950C84F1DB9B}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{57A0E746-3863-4D20-A811-950C84F1DB9B}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{57A0E747-3863-4D20-A811-950C84F1DB9B}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ShockwaveFlash.ShockwaveFlash.6\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ShockwaveFlash.ShockwaveFlash\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{D27CDB6C-AE6D-11CF-96B8-444553540000}\TypeLib\ = "{D27CDB6B-AE6D-11CF-96B8-444553540000}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\FlashFactory.FlashFactory.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.spl	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ShockwaveFlash.ShockwaveFlash.6\CLSID\ = "{D27CDB6E-AE6D-11cf-96B8-444553540000}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ShockwaveFlash.ShockwaveFlash.7\ = "Shockwave Flash Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.swf	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D27CDB6B-AE6D-11CF-96B8-444553540000}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{D27CDB6D-AE6D-11CF-96B8-444553540000}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{57A0E747-3863-4D20-A811-950C84F1DB9B}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ShockwaveFlash.ShockwaveFlash.1\ = "Shockwave Flash Object"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ShockwaveFlash.ShockwaveFlash.4\CLSID\ = "{D27CDB6E-AE6D-11cf-96B8-444553540000}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sor\Content Type = "text/plain"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1171A62F-05D2-11D1-83FC-00A0C9089C5A}\ = "FlashProp Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{D27CDB6C-AE6D-11CF-96B8-444553540000}\ = "IShockwaveFlash"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{D27CDB6C-AE6D-11CF-96B8-444553540000}\TypeLib\Version = "1.0"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 376	2372	regsvr32.exe	83
PID 2372 wrote to memory of 376	2372	regsvr32.exe	83
PID 2372 wrote to memory of 376	2372	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\flash.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\flash.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:376

Network

MITRE ATT&CK Enterprise v15

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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