102276ae1f518745695fe8f291bf6e69856b91723244881561bb1a2338d54b12

Resubmissions

09/07/2024, 19:21

240709-x2s8ss1blj 10

09/07/2024, 19:14

240709-xxngrazhkp 10

03/07/2024, 09:01

240703-ky8g4awaja 10

Analysis

max time kernel
299s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
09/07/2024, 19:21

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General

Target

ransom.exe
Size

7.8MB
MD5

648bd793d9e54fc2741e0ba10980c7de
SHA1

f5d0c94b2be91342dc01ecf2f89e7e6f21a74b90
SHA256

102276ae1f518745695fe8f291bf6e69856b91723244881561bb1a2338d54b12
SHA512

d1428b934a360d7f3651947d11081892c93c7cd29a17dc38190cbb46c95939928ac6f805adf586be2937e27fc20aec8bd1fc2c782c681e7e94e9e8d33b8ebf15
SSDEEP

98304:9+v9K8MgmB4oIWcCJ3ZZVL8oYi5lTkZkmla1DXL:S4uWcCT9Gzl

Score

10^/10

ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Adobe\Acrobat\9.0\CyberVolk_ReadMe.txt

Ransom Note

Greetings. All your files have been encrypted by CyberVolk ransomware. Please never try to recover your files without decryption key which I give you after pay. They could be disappeared� You should follow my words. Pay $1000 BTC to below address. My telegram : @hacker7 Our Team : https://t.me/cubervolk We always welcome you and your payment.

URLs

https://t.me/cubervolk

Signatures

Renames multiple (885) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Drops startup file 6 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\CyberVolk_ReadMe.txt	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini	ransom.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini.cvenc	ransom.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CyberVolk_ReadMe.txt	ransom.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\CyberVolk_ReadMe.txt	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CyberVolk_ReadMe.txt	ransom.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
T1552.001

Drops desktop.ini file(s) 64 IoCs

description	ioc	Process
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Tablet PC\Desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\M720ATCO\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\ZO1X14N3\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	ransom.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Ringtones\desktop.ini	ransom.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\C906A748\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	ransom.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	ransom.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	ransom.exe
File opened for modification	C:\Users\Public\desktop.ini	ransom.exe
File opened for modification	C:\Users\Public\Libraries\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	ransom.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	ransom.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Games\Desktop.ini	ransom.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini	ransom.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini	ransom.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\desktop.ini	ransom.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	ransom.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\OW9ZQM06\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	ransom.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini	ransom.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\N7ZQRMOO\desktop.ini	ransom.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	ransom.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	ransom.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	ransom.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini	ransom.exe
File opened for modification	C:\Users\Public\Recorded TV\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini	ransom.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	ransom.exe
File opened for modification	C:\Users\Public\Downloads\desktop.ini	ransom.exe
File opened for modification	C:\Users\Public\Recorded TV\Sample Media\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\MN6S8FGK\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	ransom.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\0JY8H21Z\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	ransom.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\V8SGIH7I\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	ransom.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	ransom.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini	ransom.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	ransom.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\g:	ransom.exe
File opened (read-only)	\??\l:	ransom.exe
File opened (read-only)	\??\x:	ransom.exe
File opened (read-only)	\??\z:	ransom.exe
File opened (read-only)	\??\a:	ransom.exe
File opened (read-only)	\??\j:	ransom.exe
File opened (read-only)	\??\m:	ransom.exe
File opened (read-only)	\??\n:	ransom.exe
File opened (read-only)	\??\p:	ransom.exe
File opened (read-only)	\??\s:	ransom.exe
File opened (read-only)	\??\y:	ransom.exe
File opened (read-only)	\??\b:	ransom.exe
File opened (read-only)	\??\e:	ransom.exe
File opened (read-only)	\??\h:	ransom.exe
File opened (read-only)	\??\k:	ransom.exe
File opened (read-only)	\??\o:	ransom.exe
File opened (read-only)	\??\q:	ransom.exe
File opened (read-only)	\??\u:	ransom.exe
File opened (read-only)	\??\i:	ransom.exe
File opened (read-only)	\??\r:	ransom.exe
File opened (read-only)	\??\t:	ransom.exe
File opened (read-only)	\??\v:	ransom.exe
File opened (read-only)	\??\w:	ransom.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\tmp.bmp"	ransom.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3032	ransom.exe

C:\Users\Admin\AppData\Local\Temp\ransom.exe
"C:\Users\Admin\AppData\Local\Temp\ransom.exe"
1⤵
- Drops startup file
- Drops desktop.ini file(s)
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Suspicious use of FindShellTrayWindow
PID:3032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact