9977291ab2a17549ea194ee338da6dab687d3ad945b7f249b5595d770c675194

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
29-12-2023 12:50

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General

Target

Fastcopy 5.4.3/FastCopy/FastExt1.dll
Size

199KB
MD5

3bf400aa22fe23ff7700965ee7857d6d
SHA1

2960e909fa241493af8f986171576c64c581b978
SHA256

7019fd4488be4ed907a0387cd48682d3a87d993025a1087b39a91f3177778105
SHA512

a70b2f7a4f1e5edb185c204e07ccfab5e8d0b4c4ed6e7f18e343ba908d545224638bc3b70bf8ab535810f829445a5faaa51ba37f2dfcfd6f4f67808f3a654d28
SSDEEP

3072:TIIIIQ9r1YEkZ6BQkiHbqRIV2I/s6aoJ6WSxpNOkzvNzFQmkKOtk:TIIIIQ9r1GZ6BQ/Vts6GpNjRnkKOtk

Score

4^/10

persistence

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 3 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\FastCopy	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\FastCopy\ = "{72FF462B-AB7D-427A-A268-E22E414933D7}"	regsvr32.exe

Modifies registry class 38 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\ContextMenuHandlers	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\FastCopy\ = "{72FF462B-AB7D-427A-A268-E22E414933D7}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\ContextMenuHandlers\FastCopy	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\DragDropHandlers	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\DragDropHandlers\FastCopy	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\InternetShortcut\ShellEx\ContextMenuHandlers\FastCopy\ = "{72FF462B-AB7D-427A-A268-E22E414933D7}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72FF462B-AB7D-427A-A268-E22E414933D7}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\DragDropHandlers	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\ShellEx\ContextMenuHandlers\FastCopy\ = "{72FF462B-AB7D-427A-A268-E22E414933D7}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\ShellEx\DragDropHandlers\FastCopy\ = "{72FF462B-AB7D-427A-A268-E22E414933D7}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\Background\shellex\ContextMenuHandlers\FastCopy\ = "{72FF462B-AB7D-427A-A268-E22E414933D7}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\DragDropHandlers\FastCopy	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\InternetShortcut\ShellEx\ContextMenuHandlers\FastCopy	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72FF462B-AB7D-427A-A268-E22E414933D7}\ = "FastCopy"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\FastCopy	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\ShellEx\ContextMenuHandlers\FastCopy	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\FastCopy\ = "{72FF462B-AB7D-427A-A268-E22E414933D7}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\ContextMenuHandlers	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72FF462B-AB7D-427A-A268-E22E414933D7}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\FastCopy\ = "{72FF462B-AB7D-427A-A268-E22E414933D7}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\DragDropHandlers	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72FF462B-AB7D-427A-A268-E22E414933D7}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Fastcopy 5.4.3\\FastCopy\\FastExt1.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\DragDropHandlers\FastCopy	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\ShellEx\DragDropHandlers\FastCopy	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\FastCopy	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\Background\shellex\ContextMenuHandlers\FastCopy	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\DragDropHandlers\FastCopy\ = "{72FF462B-AB7D-427A-A268-E22E414933D7}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\DragDropHandlers\FastCopy\ = "{72FF462B-AB7D-427A-A268-E22E414933D7}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72FF462B-AB7D-427A-A268-E22E414933D7}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\DragDropHandlers\FastCopy\ = "{72FF462B-AB7D-427A-A268-E22E414933D7}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\DragDropHandlers	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\InternetShortcut\shellex\ContextMenuHandlers	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\Background\shellex\ContextMenuHandlers	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\ContextMenuHandlers\FastCopy\ = "{72FF462B-AB7D-427A-A268-E22E414933D7}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\FastCopy	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 2032	3032	regsvr32.exe	28
PID 3032 wrote to memory of 2032	3032	regsvr32.exe	28
PID 3032 wrote to memory of 2032	3032	regsvr32.exe	28
PID 3032 wrote to memory of 2032	3032	regsvr32.exe	28
PID 3032 wrote to memory of 2032	3032	regsvr32.exe	28
PID 3032 wrote to memory of 2032	3032	regsvr32.exe	28
PID 3032 wrote to memory of 2032	3032	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s "C:\Users\Admin\AppData\Local\Temp\Fastcopy 5.4.3\FastCopy\FastExt1.dll"
1⤵
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Windows\SysWOW64\regsvr32.exe
  /s "C:\Users\Admin\AppData\Local\Temp\Fastcopy 5.4.3\FastCopy\FastExt1.dll"
  2⤵
  - Modifies system executable filetype association
  - Modifies registry class
  PID:2032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

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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