Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
29-05-2024 22:33
Static task
static1
Behavioral task
behavioral1
Sample
672cafdb040972a1e0827958b3afabce1576f8e0cd59f669b04863a258bb4c93.dll
Resource
win7-20240508-en
General
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Target
672cafdb040972a1e0827958b3afabce1576f8e0cd59f669b04863a258bb4c93.dll
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Size
832KB
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MD5
fee29d749e9a6755526a0c517164cb16
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SHA1
4232c812300820be5f637b15c68959961f316a33
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SHA256
672cafdb040972a1e0827958b3afabce1576f8e0cd59f669b04863a258bb4c93
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SHA512
81994cddf01f31c7b3c2ff5b73f21da66b2496a313d5774bd73919b03f410f31bf1722136e09088d8b6174eca019f6d9fd0c42e767dd9b1274e05a530b7191ac
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SSDEEP
24576:TxTyK5ZRYoRwVZlCvQ3cRB7aBq3U9T3Gaw:TxRp/RwblCvQ3g7c39jw
Malware Config
Signatures
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Modifies firewall policy service 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\rundll32mgr.exe = "C:\\Windows\\SysWOW64\\rundll32mgr.exe:*:enabled:@shell32.dll,-1" rundll32mgr.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List rundll32mgr.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile rundll32mgr.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications rundll32mgr.exe -
UPX dump on OEP (original entry point) 4 IoCs
resource yara_rule behavioral2/memory/2320-1-0x0000000010000000-0x00000000100D4000-memory.dmp UPX behavioral2/files/0x0007000000023305-4.dat UPX behavioral2/memory/1936-5-0x0000000000400000-0x00000000004BA000-memory.dmp UPX behavioral2/memory/1936-14-0x0000000000400000-0x00000000004BA000-memory.dmp UPX -
Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\system32\DRIVERS\ETC\HOSTS rundll32mgr.exe -
Executes dropped EXE 1 IoCs
pid Process 1936 rundll32mgr.exe -
resource yara_rule behavioral2/files/0x0007000000023305-4.dat upx behavioral2/memory/1936-5-0x0000000000400000-0x00000000004BA000-memory.dmp upx behavioral2/memory/1936-14-0x0000000000400000-0x00000000004BA000-memory.dmp upx -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32mgr.exe rundll32.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2248 1936 WerFault.exe 83 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1936 rundll32mgr.exe 1936 rundll32mgr.exe -
Suspicious behavior: MapViewOfSection 64 IoCs
pid Process 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe 1936 rundll32mgr.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1936 rundll32mgr.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2240 wrote to memory of 2320 2240 rundll32.exe 82 PID 2240 wrote to memory of 2320 2240 rundll32.exe 82 PID 2240 wrote to memory of 2320 2240 rundll32.exe 82 PID 2320 wrote to memory of 1936 2320 rundll32.exe 83 PID 2320 wrote to memory of 1936 2320 rundll32.exe 83 PID 2320 wrote to memory of 1936 2320 rundll32.exe 83 PID 1936 wrote to memory of 612 1936 rundll32mgr.exe 5 PID 1936 wrote to memory of 612 1936 rundll32mgr.exe 5 PID 1936 wrote to memory of 612 1936 rundll32mgr.exe 5 PID 1936 wrote to memory of 612 1936 rundll32mgr.exe 5 PID 1936 wrote to memory of 612 1936 rundll32mgr.exe 5 PID 1936 wrote to memory of 612 1936 rundll32mgr.exe 5 PID 1936 wrote to memory of 672 1936 rundll32mgr.exe 7 PID 1936 wrote to memory of 672 1936 rundll32mgr.exe 7 PID 1936 wrote to memory of 672 1936 rundll32mgr.exe 7 PID 1936 wrote to memory of 672 1936 rundll32mgr.exe 7 PID 1936 wrote to memory of 672 1936 rundll32mgr.exe 7 PID 1936 wrote to memory of 672 1936 rundll32mgr.exe 7 PID 1936 wrote to memory of 792 1936 rundll32mgr.exe 8 PID 1936 wrote to memory of 792 1936 rundll32mgr.exe 8 PID 1936 wrote to memory of 792 1936 rundll32mgr.exe 8 PID 1936 wrote to memory of 792 1936 rundll32mgr.exe 8 PID 1936 wrote to memory of 792 1936 rundll32mgr.exe 8 PID 1936 wrote to memory of 792 1936 rundll32mgr.exe 8 PID 1936 wrote to memory of 804 1936 rundll32mgr.exe 9 PID 1936 wrote to memory of 804 1936 rundll32mgr.exe 9 PID 1936 wrote to memory of 804 1936 rundll32mgr.exe 9 PID 1936 wrote to memory of 804 1936 rundll32mgr.exe 9 PID 1936 wrote to memory of 804 1936 rundll32mgr.exe 9 PID 1936 wrote to memory of 804 1936 rundll32mgr.exe 9 PID 1936 wrote to memory of 808 1936 rundll32mgr.exe 10 PID 1936 wrote to memory of 808 1936 rundll32mgr.exe 10 PID 1936 wrote to memory of 808 1936 rundll32mgr.exe 10 PID 1936 wrote to memory of 808 1936 rundll32mgr.exe 10 PID 1936 wrote to memory of 808 1936 rundll32mgr.exe 10 PID 1936 wrote to memory of 808 1936 rundll32mgr.exe 10 PID 1936 wrote to memory of 920 1936 rundll32mgr.exe 11 PID 1936 wrote to memory of 920 1936 rundll32mgr.exe 11 PID 1936 wrote to memory of 920 1936 rundll32mgr.exe 11 PID 1936 wrote to memory of 920 1936 rundll32mgr.exe 11 PID 1936 wrote to memory of 920 1936 rundll32mgr.exe 11 PID 1936 wrote to memory of 920 1936 rundll32mgr.exe 11 PID 1936 wrote to memory of 972 1936 rundll32mgr.exe 12 PID 1936 wrote to memory of 972 1936 rundll32mgr.exe 12 PID 1936 wrote to memory of 972 1936 rundll32mgr.exe 12 PID 1936 wrote to memory of 972 1936 rundll32mgr.exe 12 PID 1936 wrote to memory of 972 1936 rundll32mgr.exe 12 PID 1936 wrote to memory of 972 1936 rundll32mgr.exe 12 PID 1936 wrote to memory of 376 1936 rundll32mgr.exe 13 PID 1936 wrote to memory of 376 1936 rundll32mgr.exe 13 PID 1936 wrote to memory of 376 1936 rundll32mgr.exe 13 PID 1936 wrote to memory of 376 1936 rundll32mgr.exe 13 PID 1936 wrote to memory of 376 1936 rundll32mgr.exe 13 PID 1936 wrote to memory of 376 1936 rundll32mgr.exe 13 PID 1936 wrote to memory of 760 1936 rundll32mgr.exe 14 PID 1936 wrote to memory of 760 1936 rundll32mgr.exe 14 PID 1936 wrote to memory of 760 1936 rundll32mgr.exe 14 PID 1936 wrote to memory of 760 1936 rundll32mgr.exe 14 PID 1936 wrote to memory of 760 1936 rundll32mgr.exe 14 PID 1936 wrote to memory of 760 1936 rundll32mgr.exe 14 PID 1936 wrote to memory of 1040 1936 rundll32mgr.exe 15 PID 1936 wrote to memory of 1040 1936 rundll32mgr.exe 15 PID 1936 wrote to memory of 1040 1936 rundll32mgr.exe 15 PID 1936 wrote to memory of 1040 1936 rundll32mgr.exe 15
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:612
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C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"2⤵PID:808
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C:\Windows\system32\dwm.exe"dwm.exe"2⤵PID:376
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C:\Windows\system32\lsass.exeC:\Windows\system32\lsass.exe1⤵PID:672
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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:1064
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}2⤵PID:3796
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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:3888
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding2⤵PID:3956
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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:4048
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding2⤵PID:4216
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding2⤵PID:4592
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C:\Windows\system32\SppExtComObj.exeC:\Windows\system32\SppExtComObj.exe -Embedding2⤵PID:4548
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}2⤵PID:448
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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:4588
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C:\Windows\system32\backgroundTaskHost.exe"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca2⤵PID:1780
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C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"1⤵PID:804
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k RPCSS -p1⤵PID:920
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM1⤵PID:972
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc1⤵PID:760
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNoNetwork -p1⤵PID:1040
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts1⤵PID:1052
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService1⤵PID:1080
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc1⤵PID:1088
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule1⤵PID:1196
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C:\Windows\system32\taskhostw.exetaskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}2⤵PID:2952
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C:\Windows\system32\MusNotification.exeC:\Windows\system32\MusNotification.exe2⤵PID:3556
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog1⤵PID:1248
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc1⤵PID:1256
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc1⤵PID:1364
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s nsi1⤵PID:1448
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager1⤵PID:1456
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C:\Windows\system32\sihost.exesihost.exe2⤵PID:2760
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem1⤵PID:1476
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p -s Themes1⤵PID:1484
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s SENS1⤵PID:1628
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp1⤵PID:1652
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder1⤵PID:1680
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k NetworkService -p -s NlaSvc1⤵PID:1748
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalService -p -s netprofm1⤵PID:1820
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p1⤵PID:1852
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository1⤵PID:1968
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p1⤵PID:1992
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k NetworkService -p -s Dnscache1⤵PID:2004
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection1⤵PID:1184
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C:\Windows\System32\spoolsv.exeC:\Windows\System32\spoolsv.exe1⤵PID:2132
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNoNetworkFirewall -p1⤵PID:2176
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt1⤵PID:2192
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation1⤵PID:2204
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc1⤵PID:2340
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT1⤵PID:2484
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent1⤵PID:2492
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k NetworkService -p -s CryptSvc1⤵PID:2720
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C:\Windows\sysmon.exeC:\Windows\sysmon.exe1⤵PID:2768
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer1⤵PID:2780
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks1⤵PID:2788
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService1⤵PID:2804
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc1⤵PID:2824
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s TokenBroker1⤵PID:3036
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc1⤵PID:3404
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3484
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\672cafdb040972a1e0827958b3afabce1576f8e0cd59f669b04863a258bb4c93.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:2240 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\672cafdb040972a1e0827958b3afabce1576f8e0cd59f669b04863a258bb4c93.dll,#13⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2320 -
C:\Windows\SysWOW64\rundll32mgr.exeC:\Windows\SysWOW64\rundll32mgr.exe4⤵
- Modifies firewall policy service
- Drops file in Drivers directory
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1936 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1936 -s 5525⤵
- Program crash
PID:2248
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc1⤵PID:3596
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wlidsvc1⤵PID:5000
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc1⤵PID:3076
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV1⤵PID:564
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc1⤵PID:2044
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager1⤵PID:2600
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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:3540
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1936 -ip 19361⤵PID:4576
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
514KB
MD5bb015e33525a7ff0bb6a6f9bef84d148
SHA14588e9f270c950aaa37a379af0ef0602e529fc74
SHA2562fb82ee3d618e43d133349e6ccf0d9904a0d50085915fe7519a99c1dddf4b01c
SHA5122a8f584e3ca507433a49aa1d7b7a8cd5cf79705cc32865b5d24201812bde30173dd1dbb0dced856f0df8af81f6eb1e0d997ff7e952dde634e8b061321f6db497