Analysis Overview
SHA256
e86126285765e75589f3e068ea6120e27d59b523595dfe1c333f1e89d5d235a2
Threat Level: Known bad
The file 202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe was found to be: Known bad.
Malicious Activity Summary
UAC bypass
Sets file execution options in registry
Checks whether UAC is enabled
Adds Run key to start application
Enumerates physical storage devices
Unsigned PE
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Uses Task Scheduler COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-07 19:20
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-07 19:20
Reported
2024-01-07 19:23
Platform
win7-20231215-en
Max time kernel
150s
Max time network
118s
Command Line
Signatures
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
Sets file execution options in registry
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe\Debugger = "C:\\Users\\Admin\\AppData\\Local\\Temp\\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe" | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\utilman.exe | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\utilman.exe\Debugger = "C:\\Users\\Admin\\AppData\\Local\\Temp\\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe" | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\reg.exe\Debugger = "C:\\Users\\Admin\\AppData\\Local\\Temp\\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe" | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Users\\Admin\\AppData\\Local\\Temp\\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe" | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\reg.exe | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\cmd.exe | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\cmd.exe\Debugger = "\"cmd.exe\",\"C:\\Users\\Admin\\AppData\\Local\\Temp\\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe\"" | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\regedit.exe | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\regedit.exe\Debugger = "C:\\Users\\Admin\\AppData\\Local\\Temp\\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe" | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Qwe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe" | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeBackupPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
Suspicious use of WriteProcessMemory
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\HideFastUserSwitching = "1" | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
"C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe"
C:\Windows\system32\schtasks.exe
schtasks /create /tn "GoogleUpdateTaskMachineUK" /sc MINUTE /mo 1 /tr "C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe" /rl HIGHEST /f
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /tn "GoogleUpdateTaskMachineUK" /sc MINUTE /mo 1 /tr "C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe" /rl HIGHEST /f
C:\Windows\system32\taskeng.exe
taskeng.exe {BE6804A4-176C-4265-96FC-A53F00C49AEB} S-1-5-21-3601492379-692465709-652514833-1000:CALKHSYM\Admin:Interactive:[1]
C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe explorer.exe
C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
Network
Files
memory/1272-0-0x0000000000230000-0x0000000000231000-memory.dmp
memory/2760-1-0x0000000000230000-0x0000000000231000-memory.dmp
memory/2760-4-0x0000000000400000-0x0000000000593000-memory.dmp
memory/2644-13-0x0000000000230000-0x0000000000231000-memory.dmp
memory/2644-14-0x0000000000400000-0x0000000000593000-memory.dmp
memory/1272-25-0x0000000000400000-0x0000000000593000-memory.dmp
memory/1272-44-0x0000000000400000-0x0000000000593000-memory.dmp
memory/1272-45-0x0000000000230000-0x0000000000231000-memory.dmp
memory/1272-70-0x0000000000400000-0x0000000000593000-memory.dmp
memory/1272-89-0x0000000000400000-0x0000000000593000-memory.dmp
memory/1272-108-0x0000000000400000-0x0000000000593000-memory.dmp
memory/2308-130-0x0000000000230000-0x0000000000231000-memory.dmp
memory/1272-129-0x0000000000400000-0x0000000000593000-memory.dmp
memory/2308-131-0x0000000000400000-0x0000000000593000-memory.dmp
memory/1272-150-0x0000000000400000-0x0000000000593000-memory.dmp
memory/1272-175-0x0000000000400000-0x0000000000593000-memory.dmp
memory/1272-194-0x0000000000400000-0x0000000000593000-memory.dmp
memory/1272-213-0x0000000000400000-0x0000000000593000-memory.dmp
memory/1272-238-0x0000000000400000-0x0000000000593000-memory.dmp
memory/1272-255-0x0000000000400000-0x0000000000593000-memory.dmp
memory/2700-256-0x00000000003D0000-0x00000000003D1000-memory.dmp
memory/2700-259-0x0000000000400000-0x0000000000593000-memory.dmp
memory/1272-278-0x0000000000400000-0x0000000000593000-memory.dmp
memory/1272-301-0x0000000000400000-0x0000000000593000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-07 19:20
Reported
2024-01-07 19:23
Platform
win10v2004-20231215-en
Max time kernel
0s
Max time network
120s
Command Line
Signatures
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeBackupPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
"C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /tn "GoogleUpdateTaskMachineUK" /sc MINUTE /mo 1 /tr "C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe" /rl HIGHEST /f
C:\Windows\explorer.exe
explorer.exe
C:\Windows\system32\schtasks.exe
schtasks /create /tn "GoogleUpdateTaskMachineUK" /sc MINUTE /mo 1 /tr "C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe" /rl HIGHEST /f
C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 3.181.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.179.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| NL | 13.95.31.18:443 | tcp | |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.71.91.104.in-addr.arpa | udp |
| GB | 96.16.110.41:443 | tcp | |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.171.91.138.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
Files
memory/4048-0-0x0000000000770000-0x0000000000771000-memory.dmp
memory/4048-15-0x0000000000400000-0x0000000000593000-memory.dmp
memory/4048-34-0x0000000000400000-0x0000000000593000-memory.dmp
memory/4048-41-0x0000000000770000-0x0000000000771000-memory.dmp
memory/4048-56-0x0000000000400000-0x0000000000593000-memory.dmp
memory/4048-75-0x0000000000400000-0x0000000000593000-memory.dmp
memory/4048-100-0x0000000000400000-0x0000000000593000-memory.dmp
memory/4048-121-0x0000000000400000-0x0000000000593000-memory.dmp
memory/3460-124-0x0000000000760000-0x0000000000761000-memory.dmp
memory/3460-125-0x0000000000400000-0x0000000000593000-memory.dmp
memory/4048-140-0x0000000000400000-0x0000000000593000-memory.dmp
memory/4048-165-0x0000000000400000-0x0000000000593000-memory.dmp
memory/4048-184-0x0000000000400000-0x0000000000593000-memory.dmp
memory/4048-205-0x0000000000400000-0x0000000000593000-memory.dmp
memory/4048-224-0x0000000000400000-0x0000000000593000-memory.dmp
memory/4048-249-0x0000000000400000-0x0000000000593000-memory.dmp
memory/4072-250-0x00000000006A0000-0x00000000006A1000-memory.dmp
memory/4072-251-0x0000000000400000-0x0000000000593000-memory.dmp
memory/4048-272-0x0000000000400000-0x0000000000593000-memory.dmp
memory/4048-291-0x0000000000400000-0x0000000000593000-memory.dmp