Analysis Overview
SHA256
51c45fb238881bd25fd7435d8b8e44eee9cc56887a56a7e5f5bdef8ec8392465
Threat Level: Known bad
The file Winlocker.exe was found to be: Known bad.
Malicious Activity Summary
Blacknet family
Darkcomet
Darkcomet family
BlackNET
BlackNET payload
Checks computer location settings
Executes dropped EXE
Adds Run key to start application
UPX packed file
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-03-03 13:02
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 13:02
Reported
2025-03-03 13:04
Platform
win7-20240903-en
Max time kernel
121s
Max time network
124s
Command Line
Signatures
BlackNET
Blacknet family
Suspicious behavior: EnumeratesProcesses
| 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 |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Winlocker.exe | N/A |
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 |
Processes
C:\Users\Admin\AppData\Local\Temp\Winlocker.exe
"C:\Users\Admin\AppData\Local\Temp\Winlocker.exe"
Network
Files
memory/2556-0-0x000007FEF61AE000-0x000007FEF61AF000-memory.dmp
memory/2556-1-0x000007FEF5EF0000-0x000007FEF688D000-memory.dmp
memory/2556-2-0x000007FEF5EF0000-0x000007FEF688D000-memory.dmp
memory/2556-3-0x000007FEF5EF0000-0x000007FEF688D000-memory.dmp
memory/2556-4-0x000007FEF5EF0000-0x000007FEF688D000-memory.dmp
memory/2556-5-0x000007FEF5EF0000-0x000007FEF688D000-memory.dmp
memory/2556-6-0x000007FEF5EF0000-0x000007FEF688D000-memory.dmp
memory/2556-7-0x000007FEF61AE000-0x000007FEF61AF000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-03-03 13:02
Reported
2025-03-03 13:04
Platform
win10v2004-20250217-en
Max time kernel
150s
Max time network
153s
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-1-5-21-250031470-1197856012-2659781506-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\Winlocker.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-250031470-1197856012-2659781506-1000\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 |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\WinlockerBuilderv5.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-250031470-1197856012-2659781506-1000\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-1-5-21-250031470-1197856012-2659781506-1000\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 |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\WinlockerBuilderv5.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
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\AppData\Local\Temp\svshost.exe
"C:\Users\Admin\AppData\Local\Temp\svshost.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\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 | f0483357.xsph.ru | udp |
| 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 | 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 |
Files
memory/4140-0-0x00007FFFC6375000-0x00007FFFC6376000-memory.dmp
memory/4140-1-0x000000001C310000-0x000000001C3B6000-memory.dmp
memory/4140-2-0x000000001C890000-0x000000001CD5E000-memory.dmp
memory/4140-3-0x00007FFFC60C0000-0x00007FFFC6A61000-memory.dmp
memory/4140-4-0x000000001CE30000-0x000000001CECC000-memory.dmp
memory/4140-5-0x0000000001CE0000-0x0000000001CE8000-memory.dmp
memory/4140-6-0x000000001CF90000-0x000000001CFDC000-memory.dmp
memory/4140-7-0x00007FFFC60C0000-0x00007FFFC6A61000-memory.dmp
memory/4140-8-0x00007FFFC60C0000-0x00007FFFC6A61000-memory.dmp
memory/4140-9-0x00007FFFC60C0000-0x00007FFFC6A61000-memory.dmp
memory/4140-10-0x00007FFFC60C0000-0x00007FFFC6A61000-memory.dmp
memory/4140-11-0x0000000020600000-0x0000000020662000-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 |
C:\Users\Admin\AppData\Local\Temp\WinlockerBuilderv5.exe
| MD5 | 0df533cb9a581de63e3522954a681603 |
| SHA1 | be46afa245289e0d9a84bd1fd1faea8d8c96da5e |
| SHA256 | e3570b276e526f6fb6a289da32583b36cfbd98ec2f59d09c0243fbd0fc0805a3 |
| SHA512 | c973e3a8476879dad79f8b37f476d379b90f27cf64ecd359256df94fb811d69226dc50d1e8168d34787cc2d6abf407d8097e37cd60155650dad007a68263661e |
C:\Users\Admin\AppData\Local\Temp\upx_compresser.exe
| MD5 | 0d833c6509f350e0a15492597df2bda6 |
| SHA1 | 1f77b7eb4410f6e1c0e0f7b971a3c98b3f0a5f9f |
| SHA256 | d280fdf95c57cba365c15fc9c6371ada79734480812497c2244246cfdac52ca7 |
| SHA512 | 9e7ec8f4a756a2546c64850e0ca390788b9817984c1a91af55ffddfd3a010d7629478c2665c03a8a15d46377d66223f6937ac9d8d3d6bda5f9a1ee549ef16118 |
memory/3612-56-0x0000000000400000-0x0000000000C89000-memory.dmp
memory/1732-62-0x0000000000400000-0x000000000052A000-memory.dmp
memory/4140-64-0x00007FFFC60C0000-0x00007FFFC6A61000-memory.dmp
memory/4140-63-0x00007FFFC6375000-0x00007FFFC6376000-memory.dmp
memory/1444-59-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1444-61-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4140-132-0x00007FFFC60C0000-0x00007FFFC6A61000-memory.dmp
memory/4624-157-0x0000000000400000-0x000000000052A000-memory.dmp
memory/8-165-0x0000000000400000-0x000000000052A000-memory.dmp
memory/1444-166-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4384-161-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4384-160-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4424-168-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4392-158-0x0000000000400000-0x0000000000C89000-memory.dmp
memory/3612-171-0x0000000000400000-0x0000000000C89000-memory.dmp
memory/4384-172-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4392-174-0x0000000000400000-0x0000000000C89000-memory.dmp
memory/4384-176-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4384-179-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4384-182-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4384-185-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4384-188-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4384-191-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4384-194-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4384-197-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4384-200-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4384-203-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4384-206-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4384-209-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4384-212-0x0000000000400000-0x00000000004B2000-memory.dmp