Analysis Overview
SHA256
51c45fb238881bd25fd7435d8b8e44eee9cc56887a56a7e5f5bdef8ec8392465
Threat Level: Known bad
The file Winlocker.exe was found to be: Known bad.
Malicious Activity Summary
BlackNET payload
Darkcomet
BlackNET
Darkcomet family
Blacknet family
Executes dropped EXE
Checks computer location settings
Adds Run key to start application
UPX packed file
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-03-03 12:55
Signatures
BlackNET payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Blacknet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-03-03 12:55
Reported
2025-03-03 12:58
Platform
win10v2004-20250217-en
Max time kernel
5s
Max time network
150s
Command Line
Signatures
BlackNET
BlackNET payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Blacknet family
Darkcomet
Darkcomet family
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\Winlocker.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\svshost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\svshost.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\jusched.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\a5b002eacf54590ec8401ff6d3f920ee = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Winlocker.exe" | C:\Users\Admin\AppData\Local\Temp\Winlocker.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\a5b002eacf54590ec8401ff6d3f920ee = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\MyClient\\jusched.exe" | C:\Users\Admin\AppData\Local\Temp\Winlocker.exe | N/A |
UPX packed file
| 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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\svshost.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Winlocker.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Winlocker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Winlocker.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 436 wrote to memory of 4164 | N/A | C:\Users\Admin\AppData\Local\Temp\Winlocker.exe | C:\Users\Admin\AppData\Local\Temp\svshost.exe |
| PID 436 wrote to memory of 4164 | N/A | C:\Users\Admin\AppData\Local\Temp\Winlocker.exe | C:\Users\Admin\AppData\Local\Temp\svshost.exe |
| PID 436 wrote to memory of 4164 | N/A | C:\Users\Admin\AppData\Local\Temp\Winlocker.exe | C:\Users\Admin\AppData\Local\Temp\svshost.exe |
| PID 436 wrote to memory of 1436 | N/A | C:\Users\Admin\AppData\Local\Temp\Winlocker.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\jusched.exe |
| PID 436 wrote to memory of 1436 | N/A | C:\Users\Admin\AppData\Local\Temp\Winlocker.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\jusched.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Winlocker.exe
"C:\Users\Admin\AppData\Local\Temp\Winlocker.exe"
C:\Users\Admin\AppData\Local\Temp\svshost.exe
"C:\Users\Admin\AppData\Local\Temp\svshost.exe"
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\jusched.exe
"C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\jusched.exe"
C:\Users\Admin\AppData\Local\Temp\WinlockerBuilderv5.exe
"C:\Users\Admin\AppData\Local\Temp\WinlockerBuilderv5.exe"
C:\Users\Admin\AppData\Local\Temp\upx_compresser.exe
"C:\Users\Admin\AppData\Local\Temp\upx_compresser.exe"
C:\Users\Admin\AppData\Local\Temp\upx_compresser.exe
"C:\Users\Admin\AppData\Local\Temp\upx_compresser.exe"
C:\Users\Admin\Documents\AudioDriver\taskhost.exe
"C:\Users\Admin\Documents\AudioDriver\taskhost.exe"
C:\Users\Admin\Documents\AudioDriver\taskhost.exe
"C:\Users\Admin\Documents\AudioDriver\taskhost.exe"
C:\Users\Admin\AppData\Local\Temp\svshost.exe
"C:\Users\Admin\AppData\Local\Temp\svshost.exe"
C:\Users\Admin\AppData\Local\Temp\WinlockerBuilderv5.exe
"C:\Users\Admin\AppData\Local\Temp\WinlockerBuilderv5.exe"
C:\Users\Admin\AppData\Local\Temp\upx_compresser.exe
"C:\Users\Admin\AppData\Local\Temp\upx_compresser.exe"
C:\Users\Admin\AppData\Local\Temp\upx_compresser.exe
"C:\Users\Admin\AppData\Local\Temp\upx_compresser.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.28.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | gameservice.ddns.net | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
| US | 8.8.8.8:53 | f0483357.xsph.ru | udp |
Files
memory/436-0-0x00007FF80B525000-0x00007FF80B526000-memory.dmp
memory/436-1-0x000000001C950000-0x000000001C9F6000-memory.dmp
memory/436-2-0x00007FF80B270000-0x00007FF80BC11000-memory.dmp
memory/436-3-0x000000001CED0000-0x000000001D39E000-memory.dmp
memory/436-4-0x000000001D4F0000-0x000000001D58C000-memory.dmp
memory/436-5-0x00007FF80B270000-0x00007FF80BC11000-memory.dmp
memory/436-6-0x000000001C920000-0x000000001C928000-memory.dmp
memory/436-7-0x000000001D750000-0x000000001D79C000-memory.dmp
memory/436-8-0x00007FF80B270000-0x00007FF80BC11000-memory.dmp
memory/436-9-0x00007FF80B270000-0x00007FF80BC11000-memory.dmp
memory/436-10-0x00007FF80B270000-0x00007FF80BC11000-memory.dmp
memory/436-11-0x000000001ECB0000-0x000000001ED12000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\svshost.exe
| MD5 | 2df0daacf8be5126ddbaa7ba9a83be58 |
| SHA1 | 0889fcd78f5bf71ca04280fe97b7507b6b114ba3 |
| SHA256 | 0936e508e142466b6d83e49b27513be2207822f91ac2d038023a86d6ccd29b2a |
| SHA512 | 0348f7511803198d5d81b10bac08b9e9e79bfd1d193c9a72b1bf3883bd49d18ec21a998e4a056206fac539c73843b31c10437838eb38746bd062e682f2df120e |
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\jusched.exe
| MD5 | 5891817266ffedc10d4a84a3bd483239 |
| SHA1 | b59d365a91b50ec55ccc1c1b2a70cbf858382aa3 |
| SHA256 | 51c45fb238881bd25fd7435d8b8e44eee9cc56887a56a7e5f5bdef8ec8392465 |
| SHA512 | 517c5d785f069ce566c1d89fcc998968a5cdfc6d85bcc7e42cc2e720b4be9b543065cc1c7967635948595fdbb4af3fc7714c8b90aa6035953bca40cba7272c23 |
memory/1436-34-0x00007FF80B270000-0x00007FF80BC11000-memory.dmp
memory/1436-35-0x00007FF80B270000-0x00007FF80BC11000-memory.dmp
memory/1436-39-0x00007FF80B270000-0x00007FF80BC11000-memory.dmp
memory/436-40-0x00007FF80B525000-0x00007FF80B526000-memory.dmp
memory/436-41-0x00007FF80B270000-0x00007FF80BC11000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\WinlockerBuilderv5.exe
| MD5 | 0df533cb9a581de63e3522954a681603 |
| SHA1 | be46afa245289e0d9a84bd1fd1faea8d8c96da5e |
| SHA256 | e3570b276e526f6fb6a289da32583b36cfbd98ec2f59d09c0243fbd0fc0805a3 |
| SHA512 | c973e3a8476879dad79f8b37f476d379b90f27cf64ecd359256df94fb811d69226dc50d1e8168d34787cc2d6abf407d8097e37cd60155650dad007a68263661e |
memory/4160-63-0x0000000000400000-0x0000000000C89000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\upx_compresser.exe
| MD5 | 0d833c6509f350e0a15492597df2bda6 |
| SHA1 | 1f77b7eb4410f6e1c0e0f7b971a3c98b3f0a5f9f |
| SHA256 | d280fdf95c57cba365c15fc9c6371ada79734480812497c2244246cfdac52ca7 |
| SHA512 | 9e7ec8f4a756a2546c64850e0ca390788b9817984c1a91af55ffddfd3a010d7629478c2665c03a8a15d46377d66223f6937ac9d8d3d6bda5f9a1ee549ef16118 |
memory/436-64-0x00007FF80B270000-0x00007FF80BC11000-memory.dmp
memory/1280-70-0x0000000000400000-0x000000000052A000-memory.dmp
memory/624-69-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/624-67-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/436-66-0x00007FF80B270000-0x00007FF80BC11000-memory.dmp
memory/1204-152-0x0000000000400000-0x000000000052A000-memory.dmp
memory/2808-154-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2808-153-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/624-161-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2668-177-0x0000000000400000-0x0000000000C89000-memory.dmp
memory/3292-184-0x0000000000400000-0x000000000052A000-memory.dmp
memory/2976-186-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1436-188-0x00007FF80B270000-0x00007FF80BC11000-memory.dmp
memory/1436-189-0x00007FF80B270000-0x00007FF80BC11000-memory.dmp
memory/1436-190-0x00007FF80B270000-0x00007FF80BC11000-memory.dmp
memory/4160-191-0x0000000000400000-0x0000000000C89000-memory.dmp
memory/2808-193-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2668-195-0x0000000000400000-0x0000000000C89000-memory.dmp
memory/2808-197-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2808-200-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2808-203-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2808-206-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2808-209-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2808-212-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2808-215-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2808-218-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2808-221-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2808-227-0x0000000000400000-0x00000000004B2000-memory.dmp