91d2a52f3ccc94057ef09bff7a5591271aef63f04029c48b7a28cd7240e601b6

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-10-2024 15:04

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General

Target

data/appInfo/services/WinRAR.exe
Size

2.1MB
MD5

f59f4f7bea12dd7c8d44f0a717c21c8e
SHA1

17629ccb3bd555b72a4432876145707613100b3e
SHA256

f150b01c1cbc540c880dc00d812bcca1a8abe1166233227d621408f3e75b57d4
SHA512

44811f9a5f2917ccd56a7f894157fa305b749ca04903eeaeca493864742e459e0ce640c01c804c266283ce8c3e147c8e6b6cfd6c5cb717e2a374e92c32a63b2c
SSDEEP

49152:2oJAPtSHWxwJWzkDVkwg5NYUzNjteyUHBdH3y005:2ZAHWSxkfNNte9BpCN

Score

4^/10

discovery persistence

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 8 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

Processes:

WinRAR.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}\	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\WinRAR	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\WinRAR\ = "{B41DB860-64E4-11D2-9906-E49FADC173CA}"	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\WinRAR32	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\WinRAR32\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}"	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}	WinRAR.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3584 4172 WerFault.exe WinRAR.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.
discovery

System Language Discovery
T1614.001

Processes:

WinRAR.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WinRAR.exe

pid	pid_target	process	target process
3584	4172	WerFault.exe	WinRAR.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WinRAR.exe

Modifies registry class 64 IoCs

Processes:

WinRAR.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\DragDropHandlers\WinRAR\ = "{B41DB860-64E4-11D2-9906-E49FADC173CA}"	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\DefaultIcon	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\DropHandler	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\data\\appInfo\\services\\WinRAR.exe,0"	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\data\\appInfo\\services\\WinRAR.exe\" \"%1\""	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\ContextMenuHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\ContextMenuHandlers	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\ContextMenuHandlers\WinRAR32	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shell	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\DropHandler	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\DragDropHandlers\WinRAR32	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\DragDropHandlers\WinRAR32\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}"	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}\	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\ContextMenuHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}\	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\ContextMenuHandlers\WinRAR\ = "{B41DB860-64E4-11D2-9906-E49FADC173CA}"	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\DragDropHandlers\WinRAR\ = "{B41DB860-64E4-11D2-9906-E49FADC173CA}"	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\DefaultIcon	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\DefaultIcon	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\ContextMenuHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\PropertySheetHandlers	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\DropHandler\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}"	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\WinRAR32\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}"	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\ContextMenuHandlers\WinRAR32\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}"	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shell\open	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\ = "RAR recovery volume"	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\WinRAR32	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\WinRAR\ = "{B41DB860-64E4-11D2-9906-E49FADC173CA}"	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\DragDropHandlers\WinRAR	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\DragDropHandlers\WinRAR	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shell	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\data\\appInfo\\services\\WinRAR.exe\" \"%1\""	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\ContextMenuHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\WinRAR32\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}"	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\ContextMenuHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}	WinRAR.exe
Key created	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\PropertySheetHandlers	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\DragDropHandlers\WinRAR32	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\data\\appInfo\\services\\WinRAR.exe,0"	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\shell\open\command	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}\	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\WinRAR32	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\WinRAR	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\ = "WinRAR archive"	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\ = "WinRAR ZIP archive"	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.rev	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\shell\open	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\DropHandler\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}"	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\ContextMenuHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}	WinRAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}\	WinRAR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\DropHandler\ = "{B41DB860-64E4-11D2-9906-E49FADC173CA}"	WinRAR.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WinRAR.exe

pid process

4172 WinRAR.exe
4172 WinRAR.exe

pid	process
4172	WinRAR.exe
4172	WinRAR.exe

C:\Users\Admin\AppData\Local\Temp\data\appInfo\services\WinRAR.exe
"C:\Users\Admin\AppData\Local\Temp\data\appInfo\services\WinRAR.exe"
1⤵
- Modifies system executable filetype association
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:4172
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4172 -s 3124
  2⤵
  - Program crash
  PID:3584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4172 -ip 4172
1⤵
PID:2984

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

System Information Discovery

T1082

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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