Analysis Overview
SHA256
be86a543fe85aa61b11d5a5379e3a007c608af5f80277965703acf8e5ef93c25
Threat Level: Known bad
The file 2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware was found to be: Known bad.
Malicious Activity Summary
Windows security bypass
Modifies firewall policy service
Sality
UAC bypass
UPX dump on OEP (original entry point)
Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality
UPX packed file
Loads dropped DLL
Windows security modification
Executes dropped EXE
Checks whether UAC is enabled
Enumerates connected drives
Drops autorun.inf file
Drops file in Windows directory
Drops file in Program Files directory
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System policy modification
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-14 08:52
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
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Analysis: behavioral2
Detonation Overview
Submitted
2024-06-14 08:52
Reported
2024-06-14 08:54
Platform
win10v2004-20240611-en
Max time kernel
122s
Max time network
151s
Command Line
Signatures
Modifies firewall policy service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
Sality
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\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality
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UPX dump on OEP (original entry point)
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Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware64.exe | N/A |
UPX packed file
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Windows security modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\Svc | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.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\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
Enumerates connected drives
Drops autorun.inf file
| Description | Indicator | Process | Target |
| File opened for modification | C:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | F:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\7z.exe | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\7zFM.exe | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Uninstall.exe | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeC2RClient.exe | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeClickToRun.exe | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\7zG.exe | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ClickToRun\InspectorOfficeGadget.exe | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ClickToRun\IntegratedOffice.exe | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ClickToRun\MavInject32.exe | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\e5739ad | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | C:\Windows\SYSTEM.INI | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
Processes
C:\Windows\system32\fontdrvhost.exe
"fontdrvhost.exe"
C:\Windows\system32\fontdrvhost.exe
"fontdrvhost.exe"
C:\Windows\system32\dwm.exe
"dwm.exe"
C:\Windows\system32\sihost.exe
sihost.exe
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe
"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca
C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe"
C:\Windows\System32\Conhost.exe
\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware64.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe"
C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.197.17.2.in-addr.arpa | udp |
| NL | 23.62.61.147:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 64.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 147.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| NL | 23.62.61.73:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 73.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 35.15.31.184.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 249.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 94.65.42.20.in-addr.arpa | udp |
Files
memory/760-0-0x0000000000400000-0x00000000004A2000-memory.dmp
memory/760-3-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-8-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-1-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-5-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-15-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-9-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-24-0x00000000007E0000-0x00000000007E2000-memory.dmp
memory/760-21-0x0000000002460000-0x000000000351A000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware64.exe
| MD5 | cd073bb6ed5b50375759b2084e8999b6 |
| SHA1 | 6c6790415e0cd85a4b311004c14bdbf99be810f7 |
| SHA256 | a1a17bc5a8de40196ae236adae826772851aa0ca16511fc33412bcfdf7d2847d |
| SHA512 | ad4ccc53765641bc929187fcdc331ba38875cde132d74a562aeb903fcebd3bfedbed5c33566e676e7e5b7e38c0dc746edf0a1f6697d6d95d5b9d754083373674 |
memory/760-11-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-22-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-23-0x00000000007E0000-0x00000000007E2000-memory.dmp
memory/760-10-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-14-0x00000000007F0000-0x00000000007F1000-memory.dmp
memory/760-13-0x00000000007E0000-0x00000000007E2000-memory.dmp
memory/760-4-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-26-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-27-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-28-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-29-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-30-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-32-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-33-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-34-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-36-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-37-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-39-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-40-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-43-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-45-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-48-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-49-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-52-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-53-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-55-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-56-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-57-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-60-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-61-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-67-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-69-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-70-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-73-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-74-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-75-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-78-0x0000000002460000-0x000000000351A000-memory.dmp
memory/760-79-0x00000000007E0000-0x00000000007E2000-memory.dmp
F:\ieapw.exe
| MD5 | 5d25f51fe94aff3fa2c6310842528865 |
| SHA1 | 829a70ad375a2a4742d16a5f9e0ebeb852f61a60 |
| SHA256 | 0faaa70334a9a5edea09d48b91b1d37389865806686ac47ebb0ef81f690c83a5 |
| SHA512 | 6f73092be735a6d87a23b092e4911a6b08255ce74fad74f74cdfb357f4f1f9c719093b0055bc7734498dcb8c0f643ed97e553c65945e4e23233be9f7d8949229 |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-14 08:52
Reported
2024-06-14 08:54
Platform
win7-20240221-en
Max time kernel
125s
Max time network
120s
Command Line
Signatures
Modifies firewall policy service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
Sality
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\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality
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UPX dump on OEP (original entry point)
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Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware64.exe | N/A |
| N/A | N/A | C:\Windows\Explorer.EXE | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| N/A | N/A | C:\Windows\Explorer.EXE | N/A |
UPX packed file
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Windows security modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\Svc | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.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\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
Enumerates connected drives
Drops autorun.inf file
| Description | Indicator | Process | Target |
| File opened for modification | C:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | F:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files\7-Zip\7z.exe | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\7zFM.exe | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\7zG.exe | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Uninstall.exe | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\f761861 | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
| File opened for modification | C:\Windows\SYSTEM.INI | C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe | N/A |
Processes
C:\Windows\system32\taskhost.exe
"taskhost.exe"
C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe"
C:\Windows\system32\conhost.exe
\??\C:\Windows\system32\conhost.exe "13794151141699343847-135529244248273377211807920299147902-5037746071389755291"
C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware64.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware.exe"
Network
Files
memory/2868-0-0x0000000000400000-0x00000000004A2000-memory.dmp
memory/2868-9-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-31-0x0000000001C00000-0x0000000001C01000-memory.dmp
memory/2868-10-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-8-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-6-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-4-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-34-0x0000000001BF0000-0x0000000001BF2000-memory.dmp
memory/2868-29-0x0000000001C00000-0x0000000001C01000-memory.dmp
memory/2868-28-0x0000000001BF0000-0x0000000001BF2000-memory.dmp
memory/1112-19-0x0000000002090000-0x0000000002092000-memory.dmp
memory/2868-18-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-11-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-7-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-40-0x0000000001BF0000-0x0000000001BF2000-memory.dmp
memory/2868-12-0x0000000001D70000-0x0000000002E2A000-memory.dmp
\Users\Admin\AppData\Local\Temp\2024-06-14_bc8cc4ed11dd3121163446f226111dbe_bkransomware64.exe
| MD5 | cd073bb6ed5b50375759b2084e8999b6 |
| SHA1 | 6c6790415e0cd85a4b311004c14bdbf99be810f7 |
| SHA256 | a1a17bc5a8de40196ae236adae826772851aa0ca16511fc33412bcfdf7d2847d |
| SHA512 | ad4ccc53765641bc929187fcdc331ba38875cde132d74a562aeb903fcebd3bfedbed5c33566e676e7e5b7e38c0dc746edf0a1f6697d6d95d5b9d754083373674 |
memory/2868-5-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-41-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-42-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-43-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-44-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-45-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-47-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-48-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-58-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-59-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-62-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-63-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-65-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-67-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-68-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-73-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-74-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-77-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-79-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-80-0x0000000001D70000-0x0000000002E2A000-memory.dmp
memory/2868-97-0x0000000001BF0000-0x0000000001BF2000-memory.dmp
F:\yrsy.pif
| MD5 | fd3dcd03be016e6529dbc1b3f5502035 |
| SHA1 | 0d4d9e5014b86634f8b7c53cb9f5ed7472d15d2b |
| SHA256 | df5b5955a18a6e874ba578f532bc95c2c375ca41440cf6eb00e7e186f0b0de2d |
| SHA512 | 375c9cec950c89b2d12539d5e23cca88f38bc895630288ad92f0ee53c0ceadf4d2dc42956acde9718faf45fd2f0b4df1274e110442bb33efceb5e4a376b6ce23 |