16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20

Resubmissions

12/10/2022, 06:19

221012-g299bacgaq 10

04/10/2022, 09:54

221004-lw7nfsaeb5 10

Analysis

max time kernel
151s
max time network
127s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
12/10/2022, 06:19

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General

Target

16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
Size

48KB
MD5

4f6173eb23deaff1670b1b2f0f6882fe
SHA1

8b0aa4a785803ebcd71fa71dfe5b3671c1ab6c13
SHA256

16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20
SHA512

192bf3985320e342d6808b5581f2dbcdfaafe57ebd6c08e067b1609568790432f03f7af123e3f7ddeafe94ad2ede11ab295fbc28c9111caf50f66af597e66735
SSDEEP

768:AUAXzPLCUW6R/bUHUWSLa/SET7Q74guCNP:YC16lYHMa7TU3xP

Score

10^/10

ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\RedKrypt-Notes-README.txt

Ransom Note

ALL YOUR FILES HAVE BEEN ENCRYPTED BY THE REDKRYPT RANSOMWARE Why me? RedKrypt doesn't choose victims. Victims choose RedKrypt. How I can recovery my files? You cannot use third party software for decrypt your files: you can use only the official RedKrypt Decryption Tool. Follow this istructions: 1) Copy your decryption ID 2) Write to [email protected] and send your decryption id 3) We'll reply with our conditions, and the decryption tool will be sent to you. YOUR REDKRYPT CLIENT-ID: BC40DA2B078BFBFF000306D2

Emails

[email protected]

Signatures

Modifies extensions of user files 2 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\BlockClose.png => C:\Users\Admin\Pictures\BlockClose.png.p.redkrypt	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File renamed	C:\Users\Admin\Pictures\ResolveSync.crw => C:\Users\Admin\Pictures\ResolveSync.crw.p.redkrypt	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe

Drops startup file 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Drops desktop.ini file(s) 40 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\UN1Y26T5\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\History\History.IE5\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\MRSZ10R1\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\UFPRKV05\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\YFGR6881\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\WZHASH05\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\COPX4L9J\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\Z0VF2WDD\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\C2EPRMM6\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini	16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.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 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe
"C:\Users\Admin\AppData\Local\Temp\16764b173314ddeb7341f18a7b33066a319476847ba715c53c4f0f8e9ed43a20.exe"
1⤵
- Modifies extensions of user files
- Drops startup file
- Drops desktop.ini file(s)
PID:808

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\RedKrypt-Notes-README.txt
1⤵
PID:596

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\RedKrypt-Notes-README.txt
1⤵
PID:1828

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\Desktop\UnblockMove.css.p.redkrypt
1⤵
- Modifies registry class
PID:2044

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\Desktop\RedKrypt-Notes-README.txt

Filesize
1KB

MD5
79b403009d11ab86054043ca81c9f17e

SHA1
0b02538c4b10fc423e66d3018dcd2218e132808c

SHA256
0f40653e2e00747a38aeebe8bdd7c0b3a61c899cb0a29f1bacb94a8d686e0e79

SHA512
8ecb6ef15baf72dc64f30b00660ada2c4c41098b6f0bd667ae77377ecfa867ddc97d7f43587b0524556fcdf20e28dee48882c30f38d91bf42e160ad4bbca3354

Download Submit
memory/596-60-0x000007FEFBF71000-0x000007FEFBF73000-memory.dmp

Filesize
8KB

Download
memory/808-54-0x000007FEF4480000-0x000007FEF4EA3000-memory.dmp

Filesize
10.1MB

Download
memory/808-55-0x0000000002832000-0x0000000002842000-memory.dmp

Filesize
64KB

Download
memory/808-56-0x0000000002862000-0x0000000002872000-memory.dmp

Filesize
64KB

Download
memory/808-57-0x0000000001FE6000-0x0000000002005000-memory.dmp

Filesize
124KB

Download
memory/808-58-0x0000000001FE6000-0x0000000002005000-memory.dmp

Filesize
124KB

Download
memory/808-59-0x0000000001FE6000-0x0000000002005000-memory.dmp

Filesize
124KB

Download