Analysis Overview
SHA256
76505470086d997b23450c815d6e5bd865cd23dde42e8aec9adb35cf783912cd
Threat Level: Likely malicious
The file 2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk was found to be: Likely malicious.
Malicious Activity Summary
Detects executables packed with VMProtect.
Executes dropped EXE
Checks computer location settings
VMProtect packed file
Adds Run key to start application
Suspicious use of NtSetInformationThreadHideFromDebugger
Enumerates physical storage devices
Unsigned PE
Modifies registry class
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-21 05:04
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-21 05:04
Reported
2024-05-21 05:06
Platform
win7-20231129-en
Max time kernel
118s
Max time network
123s
Command Line
Signatures
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\MyStart = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe" | C:\Users\Admin\AppData\Local\Temp\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 948 wrote to memory of 1900 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe | C:\Windows\system32\WerFault.exe |
| PID 948 wrote to memory of 1900 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe | C:\Windows\system32\WerFault.exe |
| PID 948 wrote to memory of 1900 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe | C:\Windows\system32\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 948 -s 156
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-21 05:04
Reported
2024-05-21 05:07
Platform
win10v2004-20240226-en
Max time kernel
142s
Max time network
159s
Command Line
Signatures
Detects executables packed with VMProtect.
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Intel.Graphics.Driver.exe | N/A |
VMProtect packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MyStart = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe" | C:\Users\Admin\AppData\Local\Temp\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Intel.Graphics.Driver.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ | C:\Users\Admin\AppData\Local\Temp\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Intel.Graphics.Driver.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Intel.Graphics.Driver.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Intel.Graphics.Driver.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Intel.Graphics.Driver.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3400 wrote to memory of 4952 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\Intel.Graphics.Driver.exe |
| PID 3400 wrote to memory of 4952 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\Intel.Graphics.Driver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_b5bdb0a2c051419d31a29eac7452cec3_ryuk.exe"
C:\Users\Admin\AppData\Local\Temp\Intel.Graphics.Driver.exe
"C:\Users\Admin\AppData\Local\Temp\Intel.Graphics.Driver.exe" -a progpow_sero -o stratum+ssl://eth.sspool.com.cn:8008 -o1 stratum+ssl://x.sspool.com.cn:8008 -u 9mVeng7mj4yVoFY2kxyNWdnzAUg6pejzAccZiqbZ76S8zwN9QCpoTDnFE45XSepoJrBEWQZWKNAzHKh1KtZUjBrrokwRMt28PkH9B2N82dAscEbpG3H4J7Vtx6f3V1dAarc.km5920 -u1 9mVeng7mj4yVoFY2kxyNWdnzAUg6pejzAccZiqbZ76S8zwN9QCpoTDnFE45XSepoJrBEWQZWKNAzHKh1KtZUjBrrokwRMt28PkH9B2N82dAscEbpG3H4J7Vtx6f3V1dAarc.km5920 -i 100 -api 127.0.0.1:24586 -no-watchdog
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=4032 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.173.189.20.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\Intel.Graphics.Driver.exe
| MD5 | e727e92ee4530a5815a0a1a41cd88dc3 |
| SHA1 | afbc093120deb7fd927954fddb2032980bd03bec |
| SHA256 | 12e7ed405c8030e40e470754e54c50a9849f94e4e7247eacda97c34c2a1a8728 |
| SHA512 | 911e0cb1369a3b276f537995273167576c9d7fcf0fb5591fb98bd9c109a174e6046eb27b86f8f65e92228f45b5dfd1c9c82b0c081d3fd5b97f42a04de71b94ac |
memory/4952-32-0x00007FFEAA810000-0x00007FFEAA812000-memory.dmp
memory/4952-33-0x00007FFEAA820000-0x00007FFEAA822000-memory.dmp
memory/4952-34-0x0000000140000000-0x00000001419D6000-memory.dmp