Analysis Overview
SHA256
24893dc83648dac9acf101c38381fbe5f09dff7788e4cd1d9ac6fc10bde8bb7a
Threat Level: Known bad
The file 2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry was found to be: Known bad.
Malicious Activity Summary
Chaos family
Chaos Ransomware
Chaos
Renames multiple (207) files with added filename extension
Renames multiple (218) files with added filename extension
Reads user/profile data of web browsers
Checks computer location settings
Drops startup file
Drops desktop.ini file(s)
Sets desktop wallpaper using registry
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Opens file in notepad (likely ransom note)
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-21 23:22
Signatures
Chaos Ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Chaos family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-21 23:22
Reported
2024-09-21 23:24
Platform
win7-20240708-en
Max time kernel
16s
Max time network
17s
Command Line
Signatures
Chaos
Chaos Ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Renames multiple (207) files with added filename extension
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.url | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | N/A |
Reads user/profile data of web browsers
Drops desktop.ini file(s)
Sets desktop wallpaper using registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\xfr61fimy.jpg" | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | N/A |
Enumerates physical storage devices
Opens file in notepad (likely ransom note)
| 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\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2528 wrote to memory of 2328 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | C:\Windows\system32\NOTEPAD.EXE |
| PID 2528 wrote to memory of 2328 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | C:\Windows\system32\NOTEPAD.EXE |
| PID 2528 wrote to memory of 2328 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | C:\Windows\system32\NOTEPAD.EXE |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe"
C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
Network
Files
memory/2528-0-0x000007FEF6663000-0x000007FEF6664000-memory.dmp
memory/2528-1-0x0000000001250000-0x0000000001268000-memory.dmp
memory/2528-15-0x000007FEF6660000-0x000007FEF704C000-memory.dmp
C:\Users\Admin\Documents\read_it.txt
| MD5 | a12615b25efbc9b0e692d78cf143b46e |
| SHA1 | 3016daff192f705df77c53eea3bbb8bc0d93476c |
| SHA256 | 19d5acf79db3a71973959348dde1c1f7feb04365addc248e2fbe679131082575 |
| SHA512 | 379226c164f50f5fb8700b934125e926019b43acc1c66d973335b82fe0c7106e1b81e596a32951f06b2908375f062bf5f5f000cf5aaae69cb177668789bd1848 |
memory/2528-472-0x000007FEF6663000-0x000007FEF6664000-memory.dmp
memory/2528-473-0x000007FEF6660000-0x000007FEF704C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-21 23:22
Reported
2024-09-21 23:24
Platform
win10v2004-20240802-en
Max time kernel
95s
Max time network
102s
Command Line
Signatures
Chaos
Chaos Ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Renames multiple (218) files with added filename extension
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.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\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.url | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | N/A |
Reads user/profile data of web browsers
Drops desktop.ini file(s)
Sets desktop wallpaper using registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\j3bjc5lfw.jpg" | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | N/A |
Opens file in notepad (likely ransom note)
| 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\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 664 wrote to memory of 804 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | C:\Windows\system32\NOTEPAD.EXE |
| PID 664 wrote to memory of 804 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe | C:\Windows\system32\NOTEPAD.EXE |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-21_8e9498d9f1009d82fe20dec5e56e6ab6_destroyer_wannacry.exe"
C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| US | 52.111.227.14:443 | tcp | |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
Files
memory/664-0-0x00007FFFE82A3000-0x00007FFFE82A5000-memory.dmp
memory/664-1-0x0000000000650000-0x0000000000668000-memory.dmp
memory/664-11-0x00007FFFE82A0000-0x00007FFFE8D61000-memory.dmp
C:\Users\Admin\Documents\read_it.txt
| MD5 | a12615b25efbc9b0e692d78cf143b46e |
| SHA1 | 3016daff192f705df77c53eea3bbb8bc0d93476c |
| SHA256 | 19d5acf79db3a71973959348dde1c1f7feb04365addc248e2fbe679131082575 |
| SHA512 | 379226c164f50f5fb8700b934125e926019b43acc1c66d973335b82fe0c7106e1b81e596a32951f06b2908375f062bf5f5f000cf5aaae69cb177668789bd1848 |
memory/664-494-0x00007FFFE82A3000-0x00007FFFE82A5000-memory.dmp
memory/664-495-0x00007FFFE82A0000-0x00007FFFE8D61000-memory.dmp