Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
27/04/2024, 08:42
Static task
static1
Behavioral task
behavioral1
Sample
7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe
Resource
win10v2004-20240419-en
General
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Target
7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe
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Size
4.1MB
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MD5
a52fe0b58597d8ab864567326d771ee8
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SHA1
43d5a568945712879550b57f2bdeae9ed43c474e
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SHA256
7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749
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SHA512
208b96314baeb38407aa0c1b9ebbeddebc820f9c5282270b03a986bb8c34d04bd13ca18d5082a3f5dd6752d46842b5572e567c9f6bc07d0a8f5ba80767172120
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SSDEEP
98304:RBrcvoQ3bpeAYFyI5s2iXAaDVcYvvxcUB482tlsgYA74d:RBQ8JjsJRJcupcUK8wlX7S
Malware Config
Signatures
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Glupteba payload 15 IoCs
resource yara_rule behavioral1/memory/4960-2-0x0000000004F20000-0x000000000580B000-memory.dmp family_glupteba behavioral1/memory/4960-3-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral1/memory/4960-56-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral1/memory/4960-57-0x0000000004F20000-0x000000000580B000-memory.dmp family_glupteba behavioral1/memory/4672-83-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral1/memory/4672-138-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral1/memory/3296-167-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral1/memory/3296-226-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral1/memory/3296-228-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral1/memory/3296-230-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral1/memory/3296-232-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral1/memory/3296-234-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral1/memory/3296-236-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral1/memory/3296-238-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral1/memory/3296-240-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 5088 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 3296 csrss.exe 4504 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\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 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 -
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 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe File created C:\Windows\rss\csrss.exe 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.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 2352 schtasks.exe 2376 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\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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,-392 = "Arab Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs 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\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates 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\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates 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" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 464 powershell.exe 464 powershell.exe 4960 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 4960 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 988 powershell.exe 988 powershell.exe 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 4948 powershell.exe 4948 powershell.exe 4908 powershell.exe 4908 powershell.exe 1552 powershell.exe 1552 powershell.exe 1408 powershell.exe 1408 powershell.exe 2948 powershell.exe 2948 powershell.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 3296 csrss.exe 4504 injector.exe 3296 csrss.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 3296 csrss.exe 3296 csrss.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe 4504 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 464 powershell.exe Token: SeDebugPrivilege 4960 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Token: SeImpersonatePrivilege 4960 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe Token: SeDebugPrivilege 988 powershell.exe Token: SeDebugPrivilege 4948 powershell.exe Token: SeDebugPrivilege 4908 powershell.exe Token: SeDebugPrivilege 1552 powershell.exe Token: SeDebugPrivilege 1408 powershell.exe Token: SeDebugPrivilege 2948 powershell.exe Token: SeSystemEnvironmentPrivilege 3296 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 4960 wrote to memory of 464 4960 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 88 PID 4960 wrote to memory of 464 4960 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 88 PID 4960 wrote to memory of 464 4960 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 88 PID 4672 wrote to memory of 988 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 93 PID 4672 wrote to memory of 988 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 93 PID 4672 wrote to memory of 988 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 93 PID 4672 wrote to memory of 2896 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 96 PID 4672 wrote to memory of 2896 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 96 PID 2896 wrote to memory of 5088 2896 cmd.exe 98 PID 2896 wrote to memory of 5088 2896 cmd.exe 98 PID 4672 wrote to memory of 4948 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 99 PID 4672 wrote to memory of 4948 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 99 PID 4672 wrote to memory of 4948 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 99 PID 4672 wrote to memory of 4908 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 101 PID 4672 wrote to memory of 4908 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 101 PID 4672 wrote to memory of 4908 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 101 PID 4672 wrote to memory of 3296 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 105 PID 4672 wrote to memory of 3296 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 105 PID 4672 wrote to memory of 3296 4672 7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe 105 PID 3296 wrote to memory of 1552 3296 csrss.exe 108 PID 3296 wrote to memory of 1552 3296 csrss.exe 108 PID 3296 wrote to memory of 1552 3296 csrss.exe 108 PID 3296 wrote to memory of 1408 3296 csrss.exe 116 PID 3296 wrote to memory of 1408 3296 csrss.exe 116 PID 3296 wrote to memory of 1408 3296 csrss.exe 116 PID 3296 wrote to memory of 2948 3296 csrss.exe 118 PID 3296 wrote to memory of 2948 3296 csrss.exe 118 PID 3296 wrote to memory of 2948 3296 csrss.exe 118 PID 3296 wrote to memory of 4504 3296 csrss.exe 120 PID 3296 wrote to memory of 4504 3296 csrss.exe 120 -
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\7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe"C:\Users\Admin\AppData\Local\Temp\7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4960 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:464
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C:\Users\Admin\AppData\Local\Temp\7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe"C:\Users\Admin\AppData\Local\Temp\7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.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:4672 -
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:988
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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:2896 -
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:5088
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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:4948
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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:4908
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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.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3296 -
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:1552
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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:2352
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3452
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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:1408
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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:2948
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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:4504
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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:2376
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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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD597f6a57b6fb48c85a4bbcab6ac1efbca
SHA1be03209d2a721ec77a847fa46afd4bd3b54ac3bd
SHA2568b9cc2165c46306fc31eeafc10e66b0038df3cfb33296ab556c140d2c3191cc8
SHA51269b400d997ab30302f233e575642f6eafe86d51f9ac56258590db1f445dd296e4ff043e40c26c97f3040199df49493f3d96d2012374bc23f344475f63f0d91dd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50a03c59d10ee8c4c15482ed0ebfbc234
SHA19659c85eee99ebcca601071cda3d5d3635265ca7
SHA25681614dcc439de7b3faf7ef77470888824e0c6b8138e208d250a669638be16bc7
SHA51227ee34d230257f383af5df3df2f550b0f200e1710b9fce49073819c7dc7bd37bcd02d0d8ab03608ad3e89ec43b5dad74cdb032e531c331c6ba97f51057a46cc8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD599e5a8debae8c8aff9f3801d9a735bb6
SHA10f71f9be44dd7a74eb4b34920206aaba7d9d3e64
SHA256dca120594df9dfc748045303669ff68b125549a935f077a013e658962eab5366
SHA512e11452e8fd168af5f96fb0abea8b54cc61a2a450d06118d3699eb3fd66940482fb3b971c03c505a6e8291fc8eb8e9f1d739292770784a0a99657b5f4c37e92a6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51789aaa0715f74e531a09a97af34d454
SHA116b98629a23502744ba3dd43506f665395d2092a
SHA256aa3523fadca33a49d213b026f47cd301f3d70e859a859ddc148c02076aef0702
SHA512132358fcf1ebd463f1514c7601bcad63d638388242ff054bdf43c6d8c1fd9292136e61a42197c76ab8d469328fd36696ad83357fcae2a155d4d60391f0c76e05
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50eabade9e7ae3f42272333680651b6d0
SHA13a4e06cbff9d60de7c5b16f17e10ef8cfb58ae84
SHA256a2183a48d3a2213514b8669b94f4fe20ccaa306f5a209f28529e9e74271588b5
SHA51228db9aad5479f383ddce8d8dfdff42de680e58908b8fd2372fb5b7dcd07ffb8ddf6b20a064f49291168005f6189fe3885967ad76ddbe9a82c8550969614071fd
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Filesize
4.1MB
MD5a52fe0b58597d8ab864567326d771ee8
SHA143d5a568945712879550b57f2bdeae9ed43c474e
SHA2567fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749
SHA512208b96314baeb38407aa0c1b9ebbeddebc820f9c5282270b03a986bb8c34d04bd13ca18d5082a3f5dd6752d46842b5572e567c9f6bc07d0a8f5ba80767172120