da457d2a49aa4e71f5724c46059847103529b14a077cc9dc9c1a3aaad5b3c06e

Analysis

max time kernel
63s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
05-11-2022 13:06

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General

Target

FastCopy64/FastExt.dll
Size

200KB
MD5

85f7d79d6eb934a70fb1eb133ea8aa63
SHA1

6472154b2bd522061b4221a20961617d2bf7c3b5
SHA256

eb06c6977d06ebed8393a4ba402d0f82dc8dcbab9a2959cd5f893c5ffd0452e5
SHA512

4425e7435cddcc3dbff3db737260be6e70cfa9aacf67c6193670ef7d7da35ddfa63056bdb83582aaf66400555a23a2ac7b8cd51a040772fed8eb6f6ed7193adc
SSDEEP

3072:mIIIIP9aSch87pkHM28BS2Dy2OFk/4TBf3k1a6t4jY9Od:mIIIIP9aSI871BjDl4TBfsP39Od

Score

10^/10

persistence

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 3 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{72FF462B-AB7D-427A-A268-E22E414933D7}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\FastCopy64\\FastExt.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\DragDropHandlers\FastCopy	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\DragDropHandlers\FastCopy\ = "{72FF462B-AB7D-427A-A268-E22E414933D7}"	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}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\DragDropHandlers\FastCopy	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\Background\shellex\ContextMenuHandlers	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\ContextMenuHandlers	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\DragDropHandlers\FastCopy\ = "{72FF462B-AB7D-427A-A268-E22E414933D7}"	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\Folder\shellex\ContextMenuHandlers\FastCopy	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers	regsvr32.exe
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\WOW6432Node\CLSID\{72FF462B-AB7D-427A-A268-E22E414933D7}\ = "FastCopy"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\FastCopy	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\DragDropHandlers\FastCopy	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\Drive\shellex\DragDropHandlers	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\ContextMenuHandlers	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\DragDropHandlers\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\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
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\Directory\background\shellex\ContextMenuHandlers\FastCopy\ = "{72FF462B-AB7D-427A-A268-E22E414933D7}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\DragDropHandlers	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\InternetShortcut\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\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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\ContextMenuHandlers\FastCopy	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\FastCopy	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\DragDropHandlers	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\DragDropHandlers	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1776 wrote to memory of 4368	1776	regsvr32.exe	76
PID 1776 wrote to memory of 4368	1776	regsvr32.exe	76
PID 1776 wrote to memory of 4368	1776	regsvr32.exe	76

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\FastCopy64\FastExt.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1776
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\FastCopy64\FastExt.dll
  2⤵
  - Modifies system executable filetype association
  - Modifies registry class
  PID:4368

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

T1042

Privilege Escalation

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 v6

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