Analysis
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max time kernel
150s -
max time network
154s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
18-05-2024 11:41
Static task
static1
Behavioral task
behavioral1
Sample
58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe
Resource
win10v2004-20240508-en
General
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Target
58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe
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Size
4.1MB
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MD5
ed122d45a1b316d7faef68812dba0348
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SHA1
2b0aedb3d842f2b6573905065f155f75ca81ffe3
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SHA256
58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2
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SHA512
f62cf69cf084f7faea59dd131193fa54d72aae53b725540c37e09cb1da2af4f424f3b0dac69ec7145ddd44c19c6b1a7a11fa7f5ff2ae7dd038f9dd4fc3f3cdc4
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SSDEEP
98304:4Z9bi3QNEOtUId2petU9sYIhWVMAA4+HP:R303UIApyYIhWVMEe
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/5076-2-0x0000000004CC0000-0x00000000055AB000-memory.dmp family_glupteba behavioral2/memory/5076-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/5076-120-0x0000000004CC0000-0x00000000055AB000-memory.dmp family_glupteba behavioral2/memory/5076-118-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4876-126-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/5076-173-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2020-201-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2020-212-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2020-214-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2020-217-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2020-220-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2020-223-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2020-226-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2020-229-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2020-232-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2020-235-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2020-238-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2020-241-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2020-244-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1512 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2020 csrss.exe 2680 injector.exe 256 windefender.exe 1940 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa06-205.dat upx behavioral2/memory/256-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1940-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/256-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1940-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1940-221-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\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 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 -
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 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe File created C:\Windows\rss\csrss.exe 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe File created 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 4860 sc.exe -
pid Process 2356 powershell.exe 424 powershell.exe 3312 powershell.exe 3556 powershell.exe 4924 powershell.exe 3004 powershell.exe 4964 powershell.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 1764 schtasks.exe 1488 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-721 = "Central Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-132 = "US Eastern Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.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\2a\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-722 = "Central Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4924 powershell.exe 4924 powershell.exe 5076 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 5076 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 3004 powershell.exe 3004 powershell.exe 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 4964 powershell.exe 4964 powershell.exe 2356 powershell.exe 2356 powershell.exe 424 powershell.exe 424 powershell.exe 3312 powershell.exe 3312 powershell.exe 3556 powershell.exe 3556 powershell.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2020 csrss.exe 2020 csrss.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2020 csrss.exe 2020 csrss.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2020 csrss.exe 2020 csrss.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe 2680 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4924 powershell.exe Token: SeDebugPrivilege 5076 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Token: SeImpersonatePrivilege 5076 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe Token: SeDebugPrivilege 3004 powershell.exe Token: SeDebugPrivilege 4964 powershell.exe Token: SeDebugPrivilege 2356 powershell.exe Token: SeDebugPrivilege 424 powershell.exe Token: SeDebugPrivilege 3312 powershell.exe Token: SeDebugPrivilege 3556 powershell.exe Token: SeSystemEnvironmentPrivilege 2020 csrss.exe Token: SeSecurityPrivilege 4860 sc.exe Token: SeSecurityPrivilege 4860 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 5076 wrote to memory of 4924 5076 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 82 PID 5076 wrote to memory of 4924 5076 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 82 PID 5076 wrote to memory of 4924 5076 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 82 PID 4876 wrote to memory of 3004 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 87 PID 4876 wrote to memory of 3004 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 87 PID 4876 wrote to memory of 3004 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 87 PID 4876 wrote to memory of 408 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 89 PID 4876 wrote to memory of 408 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 89 PID 408 wrote to memory of 1512 408 cmd.exe 91 PID 408 wrote to memory of 1512 408 cmd.exe 91 PID 4876 wrote to memory of 4964 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 92 PID 4876 wrote to memory of 4964 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 92 PID 4876 wrote to memory of 4964 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 92 PID 4876 wrote to memory of 2356 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 94 PID 4876 wrote to memory of 2356 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 94 PID 4876 wrote to memory of 2356 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 94 PID 4876 wrote to memory of 2020 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 96 PID 4876 wrote to memory of 2020 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 96 PID 4876 wrote to memory of 2020 4876 58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe 96 PID 2020 wrote to memory of 424 2020 csrss.exe 97 PID 2020 wrote to memory of 424 2020 csrss.exe 97 PID 2020 wrote to memory of 424 2020 csrss.exe 97 PID 2020 wrote to memory of 3312 2020 csrss.exe 103 PID 2020 wrote to memory of 3312 2020 csrss.exe 103 PID 2020 wrote to memory of 3312 2020 csrss.exe 103 PID 2020 wrote to memory of 3556 2020 csrss.exe 105 PID 2020 wrote to memory of 3556 2020 csrss.exe 105 PID 2020 wrote to memory of 3556 2020 csrss.exe 105 PID 2020 wrote to memory of 2680 2020 csrss.exe 107 PID 2020 wrote to memory of 2680 2020 csrss.exe 107 PID 256 wrote to memory of 864 256 windefender.exe 113 PID 256 wrote to memory of 864 256 windefender.exe 113 PID 256 wrote to memory of 864 256 windefender.exe 113 PID 864 wrote to memory of 4860 864 cmd.exe 114 PID 864 wrote to memory of 4860 864 cmd.exe 114 PID 864 wrote to memory of 4860 864 cmd.exe 114 -
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\58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe"C:\Users\Admin\AppData\Local\Temp\58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5076 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4924
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C:\Users\Admin\AppData\Local\Temp\58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.exe"C:\Users\Admin\AppData\Local\Temp\58e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2.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:4876 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3004
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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:408 -
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:1512
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4964
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2356
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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:2020 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:424
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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:1764
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:496
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3312
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3556
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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:2680
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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:1488
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:256 -
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:864 -
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:4860
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1940
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
MD5d7bcbcb9e81174ecbbd262ace139f3d2
SHA10b652f457c4322eeeb1760dd8d899f17266acc26
SHA256208a47f649dd31dca3aa14caf5901ddeaded0a2b60e94cdac30acf4bbcbb7c0b
SHA51291aa8f7bcb5f8cbca534d031963f4be0a962357ae0954cc54452987ede829a91713bd8422f2499d437a05fb92fb0a202a6ea92caea6fe2dc8a5b5a7443b1eed1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD583f943d11e17fff4d7fafc35cc286463
SHA1e830fa0cbe24b5f89147e980b64071302224a701
SHA256a2c8d54ae8eec42c72aebb2127f66005484be2a5010680a30c25a361258ec4f6
SHA512eb71e2dd85c010b360ad403051d554d7170a419cdd8713c7af5dd1dbf0fb605ac0c75ab0c8af17ff5e0d3c8465f4c4e2bc2d6aaa8cd9f8bc7101c84276824feb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f4ddfa368f297a4d9026de53c03a18c9
SHA18caa7cca2064b4f31bd17c92b45e562e233d2d05
SHA2563f0fb7090a04222b1e69ddd1138d03676144c166ab358ebc1acc986f0920c1b7
SHA512e1fb49f2a1e63b7922459eb4f035d183ac42653dbeb931bab7888345edcaad4cbdee96028d1f855eaf28ed7cc3b6312665c1b702e7ea4f3b9834a100e2122c8b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c80a9dfde2e1cc8fe36be5cadac25f4f
SHA1cf9c00222196cec561fd4c139c63806134f5528d
SHA2564ea6709a19c7f4561e618fafd4e01119a200961c6716bb1c2758eb71773e9ca9
SHA512510561790374c5c3bbec2a634beb09befb0b68a6533cdc8b0db4d52cbee2c0fc04f3d2001edafd30e3da41fc1304c72b30b6a81149bbc179ea64924591d944f4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e7648281165f6edca9751acf9865fcfc
SHA108365fb18cb74e2838af214109df0db719ecd3e9
SHA2564c594a174b753635c05a54ecaf0af0354c248d7b9f8780088f567eb0a365ada2
SHA5128fb2b60e0331296caeab35e410a03f80f8dc66f43e53a87f81eb45cd1ac5a7629c6b94f1cc655b1c88ce4aa4683a1929bce1aed9fcb5cf4a6703cdf8847012e4
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Filesize
4.1MB
MD5ed122d45a1b316d7faef68812dba0348
SHA12b0aedb3d842f2b6573905065f155f75ca81ffe3
SHA25658e269b892845283374913591e40029e0a6544388fca07fbec28cccfc8076af2
SHA512f62cf69cf084f7faea59dd131193fa54d72aae53b725540c37e09cb1da2af4f424f3b0dac69ec7145ddd44c19c6b1a7a11fa7f5ff2ae7dd038f9dd4fc3f3cdc4
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec