9256c137fae2636a6463bd090c164d8ebfde1d4955874e70e0c573ca09b168e6

Analysis

max time kernel
105s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 18:49

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General

Target

9256c137fae2636a6463bd090c164d8ebfde1d4955874e70e0c573ca09b168e6.exe
Size

732KB
MD5

52242cd296756217b0d3baae02115b90
SHA1

5cdbd82d475cb90abf424fea78caaeffa274b89b
SHA256

9256c137fae2636a6463bd090c164d8ebfde1d4955874e70e0c573ca09b168e6
SHA512

63d2de2bfc20c65ac0f6f373ad060aece2b22f0597a5c77c8524bba865e60a2a7fd7ce9c3189a83d90a29aee236d1a20c22ecc32acdd2fa1a10a42255807668f
SSDEEP

3072:tMs3fGBjY/usUQkqSEkROQq2rsluneGKC5d7d6V1igzNqJ:tn3MY/usZ+EkRdqqsUeS7d6VQ5

Score

10^/10

evasion

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

9256c137fae2636a6463bd090c164d8ebfde1d4955874e70e0c573ca09b168e6.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\hidefileext = "1"	9256c137fae2636a6463bd090c164d8ebfde1d4955874e70e0c573ca09b168e6.exe

Drops file in Windows directory 2 IoCs

Processes:

9256c137fae2636a6463bd090c164d8ebfde1d4955874e70e0c573ca09b168e6.exe

description	ioc	process
File created	C:\windows\Dos.txt	9256c137fae2636a6463bd090c164d8ebfde1d4955874e70e0c573ca09b168e6.exe
File opened for modification	C:\windows\Dos.txt	9256c137fae2636a6463bd090c164d8ebfde1d4955874e70e0c573ca09b168e6.exe

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

System Information Discovery
T1082
Modifies registry class 1 IoCs

Processes:

explorer.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings explorer.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

9256c137fae2636a6463bd090c164d8ebfde1d4955874e70e0c573ca09b168e6.exe

pid process

4980 9256c137fae2636a6463bd090c164d8ebfde1d4955874e70e0c573ca09b168e6.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings	explorer.exe

pid	process
4980	9256c137fae2636a6463bd090c164d8ebfde1d4955874e70e0c573ca09b168e6.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

9256c137fae2636a6463bd090c164d8ebfde1d4955874e70e0c573ca09b168e6.exe

description	pid	process	target process
PID 4980 wrote to memory of 4756	4980	9256c137fae2636a6463bd090c164d8ebfde1d4955874e70e0c573ca09b168e6.exe	explorer.exe
PID 4980 wrote to memory of 4756	4980	9256c137fae2636a6463bd090c164d8ebfde1d4955874e70e0c573ca09b168e6.exe	explorer.exe

C:\Users\Admin\AppData\Local\Temp\9256c137fae2636a6463bd090c164d8ebfde1d4955874e70e0c573ca09b168e6.exe
"C:\Users\Admin\AppData\Local\Temp\9256c137fae2636a6463bd090c164d8ebfde1d4955874e70e0c573ca09b168e6.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4980

C:\windows\explorer.exe
C:\windows\explorer.exe
2⤵
- Modifies registry class
PID:4756

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4756-135-0x0000000000000000-mapping.dmp

Download
memory/4980-134-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/4980-136-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

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