Malware Analysis Report

2024-08-06 16:08

Sample ID 240514-c4eg7sff8v
Target 923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.zip
SHA256 275856a4945996b6b6c211a0835ac1443549d76ebed9eb0e7b9a7711d44fe49b
Tags
chaos ransomware spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

275856a4945996b6b6c211a0835ac1443549d76ebed9eb0e7b9a7711d44fe49b

Threat Level: Known bad

The file 923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.zip was found to be: Known bad.

Malicious Activity Summary

chaos ransomware spyware stealer

Chaos Ransomware

Chaos

Chaos family

Renames multiple (175) files with added filename extension

Renames multiple (171) files with added filename extension

Checks computer location settings

Drops startup file

Reads user/profile data of web browsers

Executes dropped EXE

Drops desktop.ini file(s)

Sets desktop wallpaper using registry

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Opens file in notepad (likely ransom note)

Suspicious behavior: AddClipboardFormatListener

Modifies registry class

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Modify Registry
T1112
Credential Access
TA0006
Unsecured Credentials
T1552
Credentials In Files
T1552.001
Discovery
TA0007
Query Registry
T1012
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Data from Local System
T1005
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Defacement
T1491
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-05-14 02:37

Signatures

Chaos Ransomware

Description Indicator Process Target
N/A N/A N/A N/A

Chaos family

chaos

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-14 02:37

Reported

2024-05-14 04:14

Platform

win10v2004-20240226-en

Max time kernel

143s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe"

Signatures

Chaos

ransomware chaos

Chaos Ransomware

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Renames multiple (175) files with added filename extension

ransomware

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Drops startup file

Description Indicator Process Target
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\READ_ME_USER.txt C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Reads user/profile data of web browsers

spyware stealer

Drops desktop.ini file(s)

Description Indicator Process Target
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Favorites\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Public\Documents\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3808065738-1666277613-1125846146-1000\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Links\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Downloads\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Videos\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Desktop\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Music\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Public\Desktop\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Saved Games\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Searches\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Public\Music\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Contacts\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\OneDrive\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Public\Videos\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Public\Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Documents\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Sets desktop wallpaper using registry

ransomware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\mzb2zhtxe.jpg" C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\Local Settings C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Opens file in notepad (likely ransom note)

ransomware
Description Indicator Process Target
N/A N/A C:\Windows\system32\NOTEPAD.EXE N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4744 wrote to memory of 556 N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe C:\Users\Admin\AppData\Roaming\svchost.exe
PID 4744 wrote to memory of 556 N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe C:\Users\Admin\AppData\Roaming\svchost.exe
PID 556 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Roaming\svchost.exe C:\Windows\system32\NOTEPAD.EXE
PID 556 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Roaming\svchost.exe C:\Windows\system32\NOTEPAD.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe

"C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe"

C:\Users\Admin\AppData\Roaming\svchost.exe

"C:\Users\Admin\AppData\Roaming\svchost.exe"

C:\Windows\system32\NOTEPAD.EXE

"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\READ_ME_USER.txt

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3992 --field-trial-handle=2276,i,5697607538120380977,9987005253899555344,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
GB 142.250.187.234:443 tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 122.10.44.20.in-addr.arpa udp

Files

memory/4744-0-0x00007FF971183000-0x00007FF971185000-memory.dmp

memory/4744-1-0x00000000009A0000-0x0000000000A58000-memory.dmp

C:\Users\Admin\AppData\Roaming\svchost.exe

MD5 4bff5ddaa43a2342fdd1bbae21522141
SHA1 f3b5c279fa1b9c7abb03e2a11c2c3965ef9eb8d3
SHA256 923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2
SHA512 f184cdeafabdb214564a7f90b2f3b60e1e2c8f70769e6679e2bd75243d02e83b69b27021a7fce2e58719537b3cff4b010a2007b4441d25d6fde6553d4801237e

memory/556-14-0x00007FF971180000-0x00007FF971C41000-memory.dmp

C:\Users\Admin\Documents\READ_ME_USER.txt

MD5 2df0c97cb7d6a2792d3111a276192d36
SHA1 141580fbfb6385e00eff2dd3880e321844acbebd
SHA256 52ad64843efc73a4a6c646f94e1eb29b4d212a7a4e4e999f7efe2bfe0455293b
SHA512 209edb419c059188e8bf407ce1670c153b7b7ad7288e5b11f8a6271b55087ea76463dc0394c4b57d82f0b517e08980073da57dd71066a04cc9a9d708e7bd8aba

memory/556-417-0x00007FF971180000-0x00007FF971C41000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-14 02:37

Reported

2024-05-14 04:14

Platform

win7-20240221-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe"

Signatures

Chaos

ransomware chaos

Chaos Ransomware

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Renames multiple (171) files with added filename extension

ransomware

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\READ_ME_USER.txt C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Reads user/profile data of web browsers

spyware stealer

Drops desktop.ini file(s)

Description Indicator Process Target
File opened for modification C:\Users\Admin\Favorites\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Public\Videos\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Contacts\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Music\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Downloads\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Saved Games\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Videos\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Public\Music\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Links\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Public\Desktop\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3452737119-3959686427-228443150-1000\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Searches\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Desktop\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Public\Documents\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Public\Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A
File opened for modification C:\Users\Admin\Documents\desktop.ini C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Sets desktop wallpaper using registry

ransomware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2xu5lt9ok.jpg" C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Enumerates physical storage devices

Opens file in notepad (likely ransom note)

ransomware
Description Indicator Process Target
N/A N/A C:\Windows\system32\NOTEPAD.EXE N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2400 wrote to memory of 2320 N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe C:\Users\Admin\AppData\Roaming\svchost.exe
PID 2400 wrote to memory of 2320 N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe C:\Users\Admin\AppData\Roaming\svchost.exe
PID 2400 wrote to memory of 2320 N/A C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe C:\Users\Admin\AppData\Roaming\svchost.exe
PID 2320 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Roaming\svchost.exe C:\Windows\system32\NOTEPAD.EXE
PID 2320 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Roaming\svchost.exe C:\Windows\system32\NOTEPAD.EXE
PID 2320 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Roaming\svchost.exe C:\Windows\system32\NOTEPAD.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe

"C:\Users\Admin\AppData\Local\Temp\923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2.exe"

C:\Users\Admin\AppData\Roaming\svchost.exe

"C:\Users\Admin\AppData\Roaming\svchost.exe"

C:\Windows\system32\NOTEPAD.EXE

"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\READ_ME_USER.txt

Network

N/A

Files

memory/2400-0-0x000007FEF5393000-0x000007FEF5394000-memory.dmp

memory/2400-1-0x0000000001200000-0x00000000012B8000-memory.dmp

C:\Users\Admin\AppData\Roaming\svchost.exe

MD5 4bff5ddaa43a2342fdd1bbae21522141
SHA1 f3b5c279fa1b9c7abb03e2a11c2c3965ef9eb8d3
SHA256 923dddc478a17d0adf0c86d1b5eb709ea4b48114cbb2c0e72052bd69caae95b2
SHA512 f184cdeafabdb214564a7f90b2f3b60e1e2c8f70769e6679e2bd75243d02e83b69b27021a7fce2e58719537b3cff4b010a2007b4441d25d6fde6553d4801237e

memory/2320-7-0x0000000001030000-0x00000000010E8000-memory.dmp

memory/2320-17-0x000007FEF5390000-0x000007FEF5D7C000-memory.dmp

memory/2320-24-0x000007FEF5390000-0x000007FEF5D7C000-memory.dmp

C:\Users\Admin\Documents\READ_ME_USER.txt

MD5 2df0c97cb7d6a2792d3111a276192d36
SHA1 141580fbfb6385e00eff2dd3880e321844acbebd
SHA256 52ad64843efc73a4a6c646f94e1eb29b4d212a7a4e4e999f7efe2bfe0455293b
SHA512 209edb419c059188e8bf407ce1670c153b7b7ad7288e5b11f8a6271b55087ea76463dc0394c4b57d82f0b517e08980073da57dd71066a04cc9a9d708e7bd8aba

memory/2320-406-0x000007FEF5390000-0x000007FEF5D7C000-memory.dmp