Analysis
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max time kernel
150s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
19/04/2024, 19:13
Static task
static1
Behavioral task
behavioral1
Sample
f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe
Resource
win10v2004-20240412-en
General
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Target
f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe
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Size
4.2MB
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MD5
42a08089f3ad238fa3f5e06d23aaa147
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SHA1
acb11a502188f99d1b5151722b36bc2bd6c30c61
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SHA256
f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d
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SHA512
52a477920ab92e9413a8581451dcb0496718ef88ce238865a0985bcfd04dd3269c626378b230b6aa5942475a9b3292433c54d21d8a1a8bb380d84909835d1396
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SSDEEP
98304:BqrB5wn4OMCZOc7+DuxcvwRwKkZb9A25YIHnzSUGXdTRu1L6h:uBo4d4+DucuGBGNT0LI
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/2888-2-0x0000000004200000-0x0000000004AEB000-memory.dmp family_glupteba behavioral2/memory/2888-3-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2888-54-0x0000000004200000-0x0000000004AEB000-memory.dmp family_glupteba behavioral2/memory/4968-55-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2888-56-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4968-115-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4968-146-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4796-236-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4796-252-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4796-254-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4796-257-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4796-260-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4796-263-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4796-266-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4796-269-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4796-272-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4796-275-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4796-278-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4796-281-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2420 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4796 csrss.exe 1364 injector.exe 1624 windefender.exe 4432 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9d0-246.dat upx behavioral2/memory/1624-251-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4432-255-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4432-261-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe File created C:\Windows\rss\csrss.exe f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2560 sc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4744 schtasks.exe 2700 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-651 = "AUS Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-691 = "Tasmania Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-334 = "Jordan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-51 = "Greenland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-82 = "Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2872 = "Magallanes Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-132 = "US Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2772 = "Omsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 672 powershell.exe 672 powershell.exe 2888 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 2888 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 1556 powershell.exe 1556 powershell.exe 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 2948 powershell.exe 2948 powershell.exe 3448 powershell.exe 3448 powershell.exe 3548 powershell.exe 3548 powershell.exe 908 powershell.exe 908 powershell.exe 784 powershell.exe 784 powershell.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 4796 csrss.exe 4796 csrss.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 4796 csrss.exe 4796 csrss.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 4796 csrss.exe 4796 csrss.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe 1364 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 672 powershell.exe Token: SeDebugPrivilege 2888 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Token: SeImpersonatePrivilege 2888 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe Token: SeDebugPrivilege 1556 powershell.exe Token: SeDebugPrivilege 2948 powershell.exe Token: SeDebugPrivilege 3448 powershell.exe Token: SeDebugPrivilege 3548 powershell.exe Token: SeDebugPrivilege 908 powershell.exe Token: SeDebugPrivilege 784 powershell.exe Token: SeSystemEnvironmentPrivilege 4796 csrss.exe Token: SeSecurityPrivilege 2560 sc.exe Token: SeSecurityPrivilege 2560 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2888 wrote to memory of 672 2888 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 79 PID 2888 wrote to memory of 672 2888 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 79 PID 2888 wrote to memory of 672 2888 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 79 PID 4968 wrote to memory of 1556 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 84 PID 4968 wrote to memory of 1556 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 84 PID 4968 wrote to memory of 1556 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 84 PID 4968 wrote to memory of 4036 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 86 PID 4968 wrote to memory of 4036 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 86 PID 4036 wrote to memory of 2420 4036 cmd.exe 88 PID 4036 wrote to memory of 2420 4036 cmd.exe 88 PID 4968 wrote to memory of 2948 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 89 PID 4968 wrote to memory of 2948 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 89 PID 4968 wrote to memory of 2948 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 89 PID 4968 wrote to memory of 3448 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 91 PID 4968 wrote to memory of 3448 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 91 PID 4968 wrote to memory of 3448 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 91 PID 4968 wrote to memory of 4796 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 93 PID 4968 wrote to memory of 4796 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 93 PID 4968 wrote to memory of 4796 4968 f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe 93 PID 4796 wrote to memory of 3548 4796 csrss.exe 94 PID 4796 wrote to memory of 3548 4796 csrss.exe 94 PID 4796 wrote to memory of 3548 4796 csrss.exe 94 PID 4796 wrote to memory of 908 4796 csrss.exe 99 PID 4796 wrote to memory of 908 4796 csrss.exe 99 PID 4796 wrote to memory of 908 4796 csrss.exe 99 PID 4796 wrote to memory of 784 4796 csrss.exe 102 PID 4796 wrote to memory of 784 4796 csrss.exe 102 PID 4796 wrote to memory of 784 4796 csrss.exe 102 PID 4796 wrote to memory of 1364 4796 csrss.exe 104 PID 4796 wrote to memory of 1364 4796 csrss.exe 104 PID 1624 wrote to memory of 3560 1624 windefender.exe 110 PID 1624 wrote to memory of 3560 1624 windefender.exe 110 PID 1624 wrote to memory of 3560 1624 windefender.exe 110 PID 3560 wrote to memory of 2560 3560 cmd.exe 111 PID 3560 wrote to memory of 2560 3560 cmd.exe 111 PID 3560 wrote to memory of 2560 3560 cmd.exe 111 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe"C:\Users\Admin\AppData\Local\Temp\f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2888 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:672
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C:\Users\Admin\AppData\Local\Temp\f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe"C:\Users\Admin\AppData\Local\Temp\f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d.exe"2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4968 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1556
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C:\Windows\system32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
PID:4036 -
C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
- Modifies Windows Firewall
PID:2420
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2948
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3448
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4796 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3548
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4744
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3748
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:908
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:784
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeC:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:1364
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:2700
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1624 -
C:\Windows\SysWOW64\cmd.execmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)5⤵
- Suspicious use of WriteProcessMemory
PID:3560 -
C:\Windows\SysWOW64\sc.exesc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)6⤵
- Launches sc.exe
- Suspicious use of AdjustPrivilegeToken
PID:2560
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4432
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54ae506ac2c8bc8fc21038184f0fbad5e
SHA14fd7bc88e8f02987c84b98b4ea3a165ecef9186f
SHA256522f00bc07628e3c165b2e25ff7cb0b5c87870790a90b3c64ee47fe078770ba6
SHA512f0663c6d103b16a511e728c2b768f4d1fd57bcdf39df693d5377698cada59d6cb6b3aef41ed78489003f70b0eda659ebd7eaa7ea81d8675f08b1c2c316265c8c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD531b281afe95a530eb8f2354517d85fa8
SHA1af9add69a856196d6a692be7d4e73d934113e5af
SHA256dc62251a884843d72cae764f4b7f405789efbd29ea617506aa94852b21fe03fa
SHA512717d602b4c4364e219187e45ef088ec96e42266da748e90306bb27f66c552fa46f40b5d48c2795c677092d67de13e057a868af0b574a595338f0bdcf01cc787a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57cfdc1c3cb101b4a0b40114715c8a6e3
SHA1a597a37bce15cd06a306b348860b9f387518b6e6
SHA2568e7fe238f3e5b7ef190a8d1ed0abbfa1187a9d9c5fafafb54a8d9bdbc5d8b405
SHA5120b152f8e8f2434e64958ec2f38ec91afccf46f4f31d697132838beccf25496f296545b301e04e30170b55bdc44ae57c50f9138b10fd847e77eba96f7898211d0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55be45cdffa1897f3b62f5417065fbc0d
SHA1f13ee3b7439c27cb7472187d5ab8795031bec4c5
SHA2560d6268f579b36757db29371b88ce0381fd0e59b0dc8fd364f6bffb416aeb6d1e
SHA512d3f403f1297fb77e1be64a343699c4360ac39412b730fdc3661bf4db20bb2e27f93f445b2cfce0932d6556c8d0d026a65fc69d7e24318ab4a0bc2803d75c032e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD597575aef403cd8b79c5fd05155233555
SHA158abf6706ba6927ce463443e1a500a92fe8238ac
SHA256f9811741984aaa980dad56c9a48b328ff26ee878c011be3e22a3bb4675d609b1
SHA5125f4419bd5dbb618d276050083ed181c8bdbb16cb22003b5c2349aaa2c610f6d799df83b718686165ce945fcf603f96ca8a0b008d298a23c9deff76b44a79d447
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Filesize
4.2MB
MD542a08089f3ad238fa3f5e06d23aaa147
SHA1acb11a502188f99d1b5151722b36bc2bd6c30c61
SHA256f4e184ed3320fc6df896781b1c80c7c89e08e9c34e68ef3e0a81703120283f8d
SHA51252a477920ab92e9413a8581451dcb0496718ef88ce238865a0985bcfd04dd3269c626378b230b6aa5942475a9b3292433c54d21d8a1a8bb380d84909835d1396
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec