Analysis
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max time kernel
94s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
02-01-2025 11:32
Static task
static1
Behavioral task
behavioral1
Sample
f8f0c6c33ebf70b2f5db8f27502a5a5dd4e275c926fbc32cbf836b31815473b0.dll
Resource
win7-20240903-en
General
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Target
f8f0c6c33ebf70b2f5db8f27502a5a5dd4e275c926fbc32cbf836b31815473b0.dll
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Size
240KB
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MD5
dfe538ec79bcd56ed0b416ba864fc5c3
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SHA1
9fa0af060188b1b9a0ae07d13f46f1bc77c521a1
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SHA256
f8f0c6c33ebf70b2f5db8f27502a5a5dd4e275c926fbc32cbf836b31815473b0
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SHA512
50236e78b041ed10addbccf2c8a31fbfa559365360dca8c87b5dcb8380f2bfff6098ff88070d1a47347b5d7f66d643807704c38bd1450bb6af0bbe761286732f
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SSDEEP
3072:cn2PxxtUZZ0u3QLBvBt0M1qCWzJP0ruTTBaClHpspom7ffrAmpns:EXZZ/gLBf0dJ5TTBZbspom7bXa
Malware Config
Signatures
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Modifies firewall policy service 3 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List rundll32.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile rundll32.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications rundll32.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\rundll32.exe = "C:\\Windows\\SysWOW64\\rundll32.exe:*:enabled:@shell32.dll,-1" rundll32.exe -
Blocklisted process makes network request 1 IoCs
flow pid Process 6 4800 rundll32.exe -
Executes dropped EXE 1 IoCs
pid Process 2004 rundll32mgr.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32mgr.exe rundll32.exe -
resource yara_rule behavioral2/files/0x000c000000023ba7-3.dat upx behavioral2/memory/2004-5-0x0000000000400000-0x0000000000464000-memory.dmp upx behavioral2/memory/2004-14-0x0000000000400000-0x0000000000464000-memory.dmp upx -
Program crash 1 IoCs
pid pid_target Process procid_target 444 2004 WerFault.exe 83 -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32mgr.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2004 rundll32mgr.exe 2004 rundll32mgr.exe -
Suspicious behavior: MapViewOfSection 64 IoCs
pid Process 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe 2004 rundll32mgr.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2004 rundll32mgr.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 5048 wrote to memory of 4800 5048 rundll32.exe 82 PID 5048 wrote to memory of 4800 5048 rundll32.exe 82 PID 5048 wrote to memory of 4800 5048 rundll32.exe 82 PID 4800 wrote to memory of 2004 4800 rundll32.exe 83 PID 4800 wrote to memory of 2004 4800 rundll32.exe 83 PID 4800 wrote to memory of 2004 4800 rundll32.exe 83 PID 2004 wrote to memory of 600 2004 rundll32mgr.exe 5 PID 2004 wrote to memory of 600 2004 rundll32mgr.exe 5 PID 2004 wrote to memory of 600 2004 rundll32mgr.exe 5 PID 2004 wrote to memory of 600 2004 rundll32mgr.exe 5 PID 2004 wrote to memory of 600 2004 rundll32mgr.exe 5 PID 2004 wrote to memory of 600 2004 rundll32mgr.exe 5 PID 2004 wrote to memory of 656 2004 rundll32mgr.exe 7 PID 2004 wrote to memory of 656 2004 rundll32mgr.exe 7 PID 2004 wrote to memory of 656 2004 rundll32mgr.exe 7 PID 2004 wrote to memory of 656 2004 rundll32mgr.exe 7 PID 2004 wrote to memory of 656 2004 rundll32mgr.exe 7 PID 2004 wrote to memory of 656 2004 rundll32mgr.exe 7 PID 2004 wrote to memory of 776 2004 rundll32mgr.exe 8 PID 2004 wrote to memory of 776 2004 rundll32mgr.exe 8 PID 2004 wrote to memory of 776 2004 rundll32mgr.exe 8 PID 2004 wrote to memory of 776 2004 rundll32mgr.exe 8 PID 2004 wrote to memory of 776 2004 rundll32mgr.exe 8 PID 2004 wrote to memory of 776 2004 rundll32mgr.exe 8 PID 2004 wrote to memory of 784 2004 rundll32mgr.exe 9 PID 2004 wrote to memory of 784 2004 rundll32mgr.exe 9 PID 2004 wrote to memory of 784 2004 rundll32mgr.exe 9 PID 2004 wrote to memory of 784 2004 rundll32mgr.exe 9 PID 2004 wrote to memory of 784 2004 rundll32mgr.exe 9 PID 2004 wrote to memory of 784 2004 rundll32mgr.exe 9 PID 2004 wrote to memory of 792 2004 rundll32mgr.exe 10 PID 2004 wrote to memory of 792 2004 rundll32mgr.exe 10 PID 2004 wrote to memory of 792 2004 rundll32mgr.exe 10 PID 2004 wrote to memory of 792 2004 rundll32mgr.exe 10 PID 2004 wrote to memory of 792 2004 rundll32mgr.exe 10 PID 2004 wrote to memory of 792 2004 rundll32mgr.exe 10 PID 2004 wrote to memory of 892 2004 rundll32mgr.exe 11 PID 2004 wrote to memory of 892 2004 rundll32mgr.exe 11 PID 2004 wrote to memory of 892 2004 rundll32mgr.exe 11 PID 2004 wrote to memory of 892 2004 rundll32mgr.exe 11 PID 2004 wrote to memory of 892 2004 rundll32mgr.exe 11 PID 2004 wrote to memory of 892 2004 rundll32mgr.exe 11 PID 2004 wrote to memory of 940 2004 rundll32mgr.exe 12 PID 2004 wrote to memory of 940 2004 rundll32mgr.exe 12 PID 2004 wrote to memory of 940 2004 rundll32mgr.exe 12 PID 2004 wrote to memory of 940 2004 rundll32mgr.exe 12 PID 2004 wrote to memory of 940 2004 rundll32mgr.exe 12 PID 2004 wrote to memory of 940 2004 rundll32mgr.exe 12 PID 2004 wrote to memory of 64 2004 rundll32mgr.exe 13 PID 2004 wrote to memory of 64 2004 rundll32mgr.exe 13 PID 2004 wrote to memory of 64 2004 rundll32mgr.exe 13 PID 2004 wrote to memory of 64 2004 rundll32mgr.exe 13 PID 2004 wrote to memory of 64 2004 rundll32mgr.exe 13 PID 2004 wrote to memory of 64 2004 rundll32mgr.exe 13 PID 2004 wrote to memory of 456 2004 rundll32mgr.exe 14 PID 2004 wrote to memory of 456 2004 rundll32mgr.exe 14 PID 2004 wrote to memory of 456 2004 rundll32mgr.exe 14 PID 2004 wrote to memory of 456 2004 rundll32mgr.exe 14 PID 2004 wrote to memory of 456 2004 rundll32mgr.exe 14 PID 2004 wrote to memory of 456 2004 rundll32mgr.exe 14 PID 2004 wrote to memory of 608 2004 rundll32mgr.exe 15 PID 2004 wrote to memory of 608 2004 rundll32mgr.exe 15 PID 2004 wrote to memory of 608 2004 rundll32mgr.exe 15 PID 2004 wrote to memory of 608 2004 rundll32mgr.exe 15
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:600
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C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"2⤵PID:776
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C:\Windows\system32\dwm.exe"dwm.exe"2⤵PID:64
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C:\Windows\system32\lsass.exeC:\Windows\system32\lsass.exe1⤵PID:656
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C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"1⤵PID:784
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k DcomLaunch -p1⤵PID:792
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding2⤵PID:2972
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}2⤵PID:3736
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca2⤵PID:3824
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding2⤵PID:3888
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C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca2⤵PID:3968
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding2⤵PID:3352
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C:\Windows\system32\SppExtComObj.exeC:\Windows\system32\SppExtComObj.exe -Embedding2⤵PID:1076
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}2⤵PID:2012
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C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca2⤵PID:2108
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding2⤵PID:4836
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k RPCSS -p1⤵PID:892
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM1⤵PID:940
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc1⤵PID:456
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts1⤵PID:608
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService1⤵PID:1052
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc1⤵PID:1060
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNoNetwork -p1⤵PID:1108
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog1⤵PID:1132
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule1⤵PID:1140
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C:\Windows\system32\taskhostw.exetaskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}2⤵PID:2964
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C:\Windows\system32\MusNotification.exeC:\Windows\system32\MusNotification.exe2⤵PID:4948
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s nsi1⤵PID:1256
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc1⤵PID:1264
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp1⤵PID:1404
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc1⤵PID:1432
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p -s Themes1⤵PID:1448
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem1⤵PID:1460
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager1⤵PID:1488
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C:\Windows\system32\sihost.exesihost.exe2⤵PID:2852
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s SENS1⤵PID:1604
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder1⤵PID:1668
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k NetworkService -p -s NlaSvc1⤵PID:1704
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p1⤵PID:1788
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalService -p -s netprofm1⤵PID:1832
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p1⤵PID:1868
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k NetworkService -p -s Dnscache1⤵PID:1884
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository1⤵PID:1948
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection1⤵PID:1956
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C:\Windows\System32\spoolsv.exeC:\Windows\System32\spoolsv.exe1⤵PID:1352
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNoNetworkFirewall -p1⤵PID:1652
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation1⤵PID:1816
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc1⤵PID:2220
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt1⤵PID:2320
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT1⤵PID:2340
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent1⤵PID:2348
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k NetworkService -p -s CryptSvc1⤵PID:2424
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer1⤵PID:2520
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C:\Windows\sysmon.exeC:\Windows\sysmon.exe1⤵PID:2536
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks1⤵PID:2576
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService1⤵PID:2596
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc1⤵PID:2820
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s TokenBroker1⤵PID:664
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc1⤵PID:3336
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3416
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\f8f0c6c33ebf70b2f5db8f27502a5a5dd4e275c926fbc32cbf836b31815473b0.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:5048 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\f8f0c6c33ebf70b2f5db8f27502a5a5dd4e275c926fbc32cbf836b31815473b0.dll,#13⤵
- Modifies firewall policy service
- Blocklisted process makes network request
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4800 -
C:\Windows\SysWOW64\rundll32mgr.exeC:\Windows\SysWOW64\rundll32mgr.exe4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2004 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 2725⤵
- Program crash
PID:444
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc1⤵PID:3552
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wlidsvc1⤵PID:4872
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc1⤵PID:4768
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV1⤵PID:4292
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc1⤵PID:2560
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C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service1⤵PID:4340
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager1⤵PID:1412
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s NgcCtnrSvc1⤵PID:2248
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2004 -ip 20041⤵PID:2152
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
159KB
MD58703c6aeb2e62da71e50db9698d91e35
SHA1cafceda794c5b1976b46a5d39949137aba8dc9e6
SHA256c3a332de99e2b195bbb3e5927f8ee4217f968bc373f8c499db45db0b3388d47d
SHA51248e45868929fcacfa06c5078de2e54d32cfab80e5dd00036b37f3d55b33269f0ee82f46b68e7a6adc2ec9aecad8672393a77602c1b995133876c2c4e6d15229a