Analysis
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max time kernel
150s -
max time network
156s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
28/03/2024, 17:03
Static task
static1
Behavioral task
behavioral1
Sample
822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe
Resource
win10v2004-20240226-en
General
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Target
822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe
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Size
4.1MB
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MD5
3dc1e346392fca119ba9334e2fc5d2de
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SHA1
a3d11daa6f9a2a238b8eebc3a01ea90d221e192d
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SHA256
822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026
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SHA512
8ccda0c5d1f8276f1b4c8af58111faaf703ca94a9b7b55cb057bc13cd56fe4ca321076f4aa5c07bc847f85d9207e578d95195241f0c9e5ab4134a989fa091952
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SSDEEP
98304:DnBT2yxfuzTI5fStKEP/KBtuRmnykiTetptq5ld6zSH5JXyGfEjJ1:9qqUKXID/eQ/nIb
Malware Config
Signatures
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Glupteba payload 22 IoCs
resource yara_rule behavioral2/memory/1968-2-0x0000000003310000-0x0000000003BFB000-memory.dmp family_glupteba behavioral2/memory/1968-3-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/1968-4-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/1968-25-0x0000000003310000-0x0000000003BFB000-memory.dmp family_glupteba behavioral2/memory/1968-45-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/3788-56-0x0000000003000000-0x00000000038EB000-memory.dmp family_glupteba behavioral2/memory/3788-57-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/1968-83-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/3788-103-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/3788-105-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/3788-144-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/3788-211-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/1080-214-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/1080-248-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/1080-259-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/1080-263-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/1080-267-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/1080-271-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/1080-275-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/1080-279-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/1080-283-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/1080-287-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1880 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1080 csrss.exe 2928 injector.exe 2984 windefender.exe 4204 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a7e0-252.dat upx behavioral2/memory/2984-257-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4204-262-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4204-269-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4204-281-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-160263616-143223877-1356318919-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Set value (str) \REGISTRY\USER\S-1-5-21-160263616-143223877-1356318919-1000\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 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 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 -
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 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4556 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 2804 schtasks.exe 4656 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1411 = "Syria Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2772 = "Omsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-932 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-622 = "Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2751 = "Tomsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-231 = "Hawaiian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2136 powershell.exe 2136 powershell.exe 1968 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 1968 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 2076 powershell.exe 2076 powershell.exe 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 3112 powershell.exe 3112 powershell.exe 4476 powershell.exe 4476 powershell.exe 788 powershell.exe 788 powershell.exe 3284 powershell.exe 3284 powershell.exe 4212 powershell.exe 4212 powershell.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 1080 csrss.exe 1080 csrss.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 1080 csrss.exe 1080 csrss.exe 2928 injector.exe 2928 injector.exe 1080 csrss.exe 1080 csrss.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2136 powershell.exe Token: SeDebugPrivilege 1968 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Token: SeImpersonatePrivilege 1968 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe Token: SeDebugPrivilege 2076 powershell.exe Token: SeDebugPrivilege 3112 powershell.exe Token: SeDebugPrivilege 4476 powershell.exe Token: SeDebugPrivilege 788 powershell.exe Token: SeDebugPrivilege 3284 powershell.exe Token: SeDebugPrivilege 4212 powershell.exe Token: SeSystemEnvironmentPrivilege 1080 csrss.exe Token: SeSecurityPrivilege 4556 sc.exe Token: SeSecurityPrivilege 4556 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1968 wrote to memory of 2136 1968 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 81 PID 1968 wrote to memory of 2136 1968 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 81 PID 1968 wrote to memory of 2136 1968 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 81 PID 3788 wrote to memory of 2076 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 86 PID 3788 wrote to memory of 2076 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 86 PID 3788 wrote to memory of 2076 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 86 PID 3788 wrote to memory of 4908 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 88 PID 3788 wrote to memory of 4908 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 88 PID 4908 wrote to memory of 1880 4908 cmd.exe 90 PID 4908 wrote to memory of 1880 4908 cmd.exe 90 PID 3788 wrote to memory of 3112 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 91 PID 3788 wrote to memory of 3112 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 91 PID 3788 wrote to memory of 3112 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 91 PID 3788 wrote to memory of 4476 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 93 PID 3788 wrote to memory of 4476 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 93 PID 3788 wrote to memory of 4476 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 93 PID 3788 wrote to memory of 1080 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 95 PID 3788 wrote to memory of 1080 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 95 PID 3788 wrote to memory of 1080 3788 822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe 95 PID 1080 wrote to memory of 788 1080 csrss.exe 96 PID 1080 wrote to memory of 788 1080 csrss.exe 96 PID 1080 wrote to memory of 788 1080 csrss.exe 96 PID 1080 wrote to memory of 3284 1080 csrss.exe 101 PID 1080 wrote to memory of 3284 1080 csrss.exe 101 PID 1080 wrote to memory of 3284 1080 csrss.exe 101 PID 1080 wrote to memory of 4212 1080 csrss.exe 104 PID 1080 wrote to memory of 4212 1080 csrss.exe 104 PID 1080 wrote to memory of 4212 1080 csrss.exe 104 PID 1080 wrote to memory of 2928 1080 csrss.exe 106 PID 1080 wrote to memory of 2928 1080 csrss.exe 106 PID 2984 wrote to memory of 4772 2984 windefender.exe 112 PID 2984 wrote to memory of 4772 2984 windefender.exe 112 PID 2984 wrote to memory of 4772 2984 windefender.exe 112 PID 4772 wrote to memory of 4556 4772 cmd.exe 113 PID 4772 wrote to memory of 4556 4772 cmd.exe 113 PID 4772 wrote to memory of 4556 4772 cmd.exe 113 -
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\822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe"C:\Users\Admin\AppData\Local\Temp\822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1968 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2136
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C:\Users\Admin\AppData\Local\Temp\822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.exe"C:\Users\Admin\AppData\Local\Temp\822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026.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:3788 -
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:2076
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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:4908 -
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:1880
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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:3112
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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:4476
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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:1080 -
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:788
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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:2804
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3316
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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:3284
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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:4212
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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:2928
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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:4656
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2984 -
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:4772 -
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:4556
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4204
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
MD51ca2631065ab604b6f62ae5cae23b601
SHA101d352a7dc96c2ee41417f85e0eebe0b440ac5f9
SHA256aff3be98d8998e338586703f8f8ce82cbf7ff219ac2c50059b02e0f06ac75a48
SHA5126948996742c1d60d926c99214aa33feb4cee6f5362c0987f7600bf48308625c843731182e20dec28611c7e31e6afbc2a53a10b22c0a642035a13d1e71fb35d4c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD553252a8826116849319de121aabb6a6b
SHA114d42024de3ebdf09b55afca2178169f0fd87e18
SHA256bbeb2d12e3f3ba78ccb61e2a5f57f5ce6f98e4139a795eb987af04a58eec63f7
SHA5128b825a2f140a7d2d3a2e4cbe3e561e68e49cad33259c702a2a437a898d527f8261ff9df17ffa7558cdb2eb150bd0e5c68fb9a0ef11849beafcb173128d035b82
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5069c577824a5dc78bae22562c8ef4f32
SHA10171add47f6f009ac3f041df10c798798a479ffa
SHA256b744de0f4486bedc21f7d4fc83924d403e5fff53f3f7eb8ba8ad53c5e24c1e60
SHA512840d7d909d9775a99606309a57863097bff4cde6faeba8f5cbb9f984d13b353c65aca54f8151620ce9388f8e2ecf0b30078a0b5fca1acd6260215ef0da8c0cc6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52c1c05a513ee4394bf379d523ca2e1e3
SHA1ccd66e42811ed6649baaabf59cceef1f32f5ec77
SHA2561c733dfb65886893c4acda2e159588cdf64353586bb2cac5e635597b22f18e6d
SHA5123146fcb45ea9b8221e14421e45e8919534419425b919fcdd3f5c81645e9ec7def185eddbc4c5e5d7cc20d1432258c037eac99322c4f21a2f0ca5194ca79d34fb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55014ac54121527c1777fad45094b4ea3
SHA120dd4cdce2ce8aa9dc2f833843bff52104084bc7
SHA256024a02b4a007a6274f9daf78829d593ed2584620fad3c49ef03d17dfb548f88f
SHA512f196629c63ae6c0b06865aed919ae1cd4d41aec3c68b9f16653ec6cc1ee9a13081abd7735763963993db15dc76253117ca15f3a717a1e8428d014e668dd725bb
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Filesize
4.1MB
MD53dc1e346392fca119ba9334e2fc5d2de
SHA1a3d11daa6f9a2a238b8eebc3a01ea90d221e192d
SHA256822596d31862edb1209de0c34823c0509881ea9840b3740d359f095b7d568026
SHA5128ccda0c5d1f8276f1b4c8af58111faaf703ca94a9b7b55cb057bc13cd56fe4ca321076f4aa5c07bc847f85d9207e578d95195241f0c9e5ab4134a989fa091952
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec