Analysis Overview
SHA256
3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7
Threat Level: Known bad
The file jigsaw was found to be: Known bad.
Malicious Activity Summary
Jigsaw Ransomware
Executes dropped EXE
Checks computer location settings
Adds Run key to start application
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-07-13 10:15
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-07-13 10:15
Reported
2023-07-13 10:18
Platform
win7-20230712-es
Max time kernel
122s
Max time network
129s
Command Line
Signatures
Jigsaw Ransomware
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-722410544-1258951091-1992882075-1000\Software\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe" | C:\Users\Admin\AppData\Local\Temp\jigsaw.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2228 wrote to memory of 2188 | N/A | C:\Users\Admin\AppData\Local\Temp\jigsaw.exe | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe |
| PID 2228 wrote to memory of 2188 | N/A | C:\Users\Admin\AppData\Local\Temp\jigsaw.exe | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe |
| PID 2228 wrote to memory of 2188 | N/A | C:\Users\Admin\AppData\Local\Temp\jigsaw.exe | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\jigsaw.exe
"C:\Users\Admin\AppData\Local\Temp\jigsaw.exe"
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
"C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\jigsaw.exe
Network
Files
memory/2228-54-0x00000000002F0000-0x0000000000340000-memory.dmp
memory/2228-55-0x000007FEF5720000-0x000007FEF60BD000-memory.dmp
memory/2228-56-0x0000000001F70000-0x0000000001FF0000-memory.dmp
memory/2228-57-0x0000000000440000-0x0000000000478000-memory.dmp
memory/2228-58-0x000007FEF5720000-0x000007FEF60BD000-memory.dmp
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
| MD5 | 2773e3dc59472296cb0024ba7715a64e |
| SHA1 | 27d99fbca067f478bb91cdbcb92f13a828b00859 |
| SHA256 | 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7 |
| SHA512 | 6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262 |
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
| MD5 | 2773e3dc59472296cb0024ba7715a64e |
| SHA1 | 27d99fbca067f478bb91cdbcb92f13a828b00859 |
| SHA256 | 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7 |
| SHA512 | 6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262 |
memory/2228-66-0x000007FEF5720000-0x000007FEF60BD000-memory.dmp
memory/2188-67-0x00000000002B0000-0x0000000000300000-memory.dmp
memory/2188-68-0x0000000001F60000-0x0000000001FE0000-memory.dmp
memory/2188-65-0x000007FEF5720000-0x000007FEF60BD000-memory.dmp
memory/2188-69-0x000007FEF5720000-0x000007FEF60BD000-memory.dmp
memory/2228-70-0x000007FEF5720000-0x000007FEF60BD000-memory.dmp
memory/2188-71-0x000007FEF5720000-0x000007FEF60BD000-memory.dmp
memory/2188-72-0x0000000001F60000-0x0000000001FE0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-07-13 10:15
Reported
2023-07-13 10:18
Platform
win10v2004-20230703-es
Max time kernel
129s
Max time network
141s
Command Line
Signatures
Jigsaw Ransomware
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\jigsaw.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe" | C:\Users\Admin\AppData\Local\Temp\jigsaw.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3996 wrote to memory of 4028 | N/A | C:\Users\Admin\AppData\Local\Temp\jigsaw.exe | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe |
| PID 3996 wrote to memory of 4028 | N/A | C:\Users\Admin\AppData\Local\Temp\jigsaw.exe | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\jigsaw.exe
"C:\Users\Admin\AppData\Local\Temp\jigsaw.exe"
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
"C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\jigsaw.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.99.105.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.194.73.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 254.136.241.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.179.89.13.in-addr.arpa | udp |
Files
memory/3996-133-0x00000000008D0000-0x0000000000920000-memory.dmp
memory/3996-134-0x00007FFF076F0000-0x00007FFF08091000-memory.dmp
memory/3996-136-0x00000000010F0000-0x0000000001128000-memory.dmp
memory/3996-135-0x00007FFF076F0000-0x00007FFF08091000-memory.dmp
memory/3996-138-0x000000001BE00000-0x000000001C2CE000-memory.dmp
memory/3996-137-0x00000000013A0000-0x00000000013B0000-memory.dmp
memory/3996-139-0x000000001C2D0000-0x000000001C36C000-memory.dmp
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
| MD5 | 2773e3dc59472296cb0024ba7715a64e |
| SHA1 | 27d99fbca067f478bb91cdbcb92f13a828b00859 |
| SHA256 | 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7 |
| SHA512 | 6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262 |
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
| MD5 | 2773e3dc59472296cb0024ba7715a64e |
| SHA1 | 27d99fbca067f478bb91cdbcb92f13a828b00859 |
| SHA256 | 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7 |
| SHA512 | 6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262 |
memory/3996-153-0x00007FFF076F0000-0x00007FFF08091000-memory.dmp
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
| MD5 | 2773e3dc59472296cb0024ba7715a64e |
| SHA1 | 27d99fbca067f478bb91cdbcb92f13a828b00859 |
| SHA256 | 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7 |
| SHA512 | 6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262 |
memory/4028-154-0x00007FFF076F0000-0x00007FFF08091000-memory.dmp
memory/4028-155-0x0000000001430000-0x0000000001440000-memory.dmp
memory/4028-156-0x00007FFF076F0000-0x00007FFF08091000-memory.dmp
memory/4028-157-0x00007FFF076F0000-0x00007FFF08091000-memory.dmp
memory/4028-158-0x0000000001430000-0x0000000001440000-memory.dmp