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Analysis
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max time kernel
48s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
07/01/2024, 19:07
Static task
static1
Behavioral task
behavioral1
Sample
a8f899982e4f836cd74a1e28a5dc20c5.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
a8f899982e4f836cd74a1e28a5dc20c5.exe
Resource
win10v2004-20231215-en
General
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Target
a8f899982e4f836cd74a1e28a5dc20c5.exe
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Size
233KB
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MD5
a8f899982e4f836cd74a1e28a5dc20c5
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SHA1
13252a58ff0d28c419f643f785d77bea554031e2
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SHA256
35d0012e668948eee551f6220bfc9d9c9694fc90f8c8cedbfafab80af5a1e3c5
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SHA512
509347ffe6078b39024b2923adb6e4e6fdaacc57bf789e8fad3837a22f67eb24ef5f3ca6f25f977d40f546938f73da9d4637f1db704ce2caeee44fcf757d0a32
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SSDEEP
3072:tTvbYrCz8G0OBdJ3RSM2R7l9NwHAspt2vKPomIYjLIMeZvJ9bi1dwgdPW3CagwBu:tQrC73jSbvGA+gn+LNuJdi1bUB
Malware Config
Signatures
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Modifies firewall policy service 2 TTPs 18 IoCs
description ioc Process Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\Logging services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\FirewallRules services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\PublicProfile\AuthorizedApplications services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\PublicProfile\GloballyOpenPorts services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\PublicProfile\Logging services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\RestrictedServices\Static services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\GloballyOpenPorts services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\GloballyOpenPorts services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\PublicProfile services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\RestrictedServices\Configurable\System services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\RestrictedServices\Static\System services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\RestrictedServices services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\RestrictedServices\Configurable services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\Logging services.exe -
Modifies security service 2 TTPs 26 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WinDefend\ErrorControl = "0" services.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WinDefend\Security services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MpsSvc\Parameters\PortKeywords\IPTLSOut services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MpsSvc\Parameters\PortKeywords\Teredo services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MpsSvc\Security services.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WinDefend\Type = "32" services.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WinDefend\Start = "4" services.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WinDefend\DeleteFlag = "1" services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WinDefend\TriggerInfo\0 services.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\DeleteFlag = "1" services.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MpsSvc\DeleteFlag = "1" services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MpsSvc\Parameters\PortKeywords\DHCP services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MpsSvc\Parameters\PortKeywords\IPTLSIn services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WinDefend\Parameters services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MpsSvc\Parameters services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Parameters services.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\ErrorControl = "0" services.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MpsSvc\ErrorControl = "0" services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MpsSvc\Parameters\PortKeywords\RPC-EPMap services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MpsSvc\Parameters\PortKeywords services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WinDefend\TriggerInfo services.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Type = "32" services.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Security services.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MpsSvc\Type = "32" services.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MpsSvc\Start = "4" services.exe -
Deletes itself 1 IoCs
pid Process 3028 cmd.exe -
Unexpected DNS network traffic destination 6 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 83.133.123.20 Destination IP 83.133.123.20 Destination IP 83.133.123.20 Destination IP 83.133.123.20 Destination IP 83.133.123.20 Destination IP 83.133.123.20 -
Drops desktop.ini file(s) 2 IoCs
description ioc Process File created \systemroot\assembly\GAC_64\Desktop.ini services.exe File created \systemroot\assembly\GAC_32\Desktop.ini services.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2316 set thread context of 3028 2316 a8f899982e4f836cd74a1e28a5dc20c5.exe 28 -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\Installer\{dd77332d-3cac-1fe8-6ec7-2350d0346c53}\@ a8f899982e4f836cd74a1e28a5dc20c5.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 2316 a8f899982e4f836cd74a1e28a5dc20c5.exe 2316 a8f899982e4f836cd74a1e28a5dc20c5.exe 2316 a8f899982e4f836cd74a1e28a5dc20c5.exe 2316 a8f899982e4f836cd74a1e28a5dc20c5.exe 2316 a8f899982e4f836cd74a1e28a5dc20c5.exe 480 services.exe 2316 a8f899982e4f836cd74a1e28a5dc20c5.exe -
Suspicious use of AdjustPrivilegeToken 28 IoCs
description pid Process Token: SeDebugPrivilege 2316 a8f899982e4f836cd74a1e28a5dc20c5.exe Token: SeDebugPrivilege 2316 a8f899982e4f836cd74a1e28a5dc20c5.exe Token: SeDebugPrivilege 2316 a8f899982e4f836cd74a1e28a5dc20c5.exe Token: SeDebugPrivilege 480 services.exe Token: SeBackupPrivilege 480 services.exe Token: SeRestorePrivilege 480 services.exe Token: SeSecurityPrivilege 480 services.exe Token: SeTakeOwnershipPrivilege 480 services.exe Token: SeBackupPrivilege 480 services.exe Token: SeRestorePrivilege 480 services.exe Token: SeSecurityPrivilege 480 services.exe Token: SeTakeOwnershipPrivilege 480 services.exe Token: SeBackupPrivilege 480 services.exe Token: SeRestorePrivilege 480 services.exe Token: SeSecurityPrivilege 480 services.exe Token: SeTakeOwnershipPrivilege 480 services.exe Token: SeBackupPrivilege 480 services.exe Token: SeRestorePrivilege 480 services.exe Token: SeSecurityPrivilege 480 services.exe Token: SeTakeOwnershipPrivilege 480 services.exe Token: SeBackupPrivilege 480 services.exe Token: SeRestorePrivilege 480 services.exe Token: SeSecurityPrivilege 480 services.exe Token: SeTakeOwnershipPrivilege 480 services.exe Token: SeBackupPrivilege 480 services.exe Token: SeRestorePrivilege 480 services.exe Token: SeSecurityPrivilege 480 services.exe Token: SeTakeOwnershipPrivilege 480 services.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1312 Explorer.EXE 1312 Explorer.EXE -
Suspicious use of SendNotifyMessage 2 IoCs
pid Process 1312 Explorer.EXE 1312 Explorer.EXE -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2316 wrote to memory of 1312 2316 a8f899982e4f836cd74a1e28a5dc20c5.exe 7 PID 2316 wrote to memory of 480 2316 a8f899982e4f836cd74a1e28a5dc20c5.exe 22 PID 2316 wrote to memory of 3028 2316 a8f899982e4f836cd74a1e28a5dc20c5.exe 28 PID 2316 wrote to memory of 3028 2316 a8f899982e4f836cd74a1e28a5dc20c5.exe 28 PID 2316 wrote to memory of 3028 2316 a8f899982e4f836cd74a1e28a5dc20c5.exe 28 PID 2316 wrote to memory of 3028 2316 a8f899982e4f836cd74a1e28a5dc20c5.exe 28 PID 2316 wrote to memory of 3028 2316 a8f899982e4f836cd74a1e28a5dc20c5.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\a8f899982e4f836cd74a1e28a5dc20c5.exe"C:\Users\Admin\AppData\Local\Temp\a8f899982e4f836cd74a1e28a5dc20c5.exe"1⤵
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2316 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Deletes itself
PID:3028
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1312
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C:\Windows\system32\services.exeC:\Windows\system32\services.exe1⤵
- Modifies firewall policy service
- Modifies security service
- Drops desktop.ini file(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:480
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD533108bf68d234291965f356945303a80
SHA1d12178a1bdd54e5e103abfa2c5d89b85ea027985
SHA25639c86c3248347c175b8450a69c92cca2e28a1103f3193a41de432797d221aaa1
SHA512e4bf160b41c6c405196d6045da257e8d37c29233d53de277cf0fbfbd09bf37542395d310623b8c154318069ca4ed13278b3c2109e68badeaa652f70b450b1149