Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
17-05-2024 20:01
Static task
static1
Behavioral task
behavioral1
Sample
a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe
Resource
win10v2004-20240426-en
General
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Target
a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe
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Size
4.1MB
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MD5
aaba2a703d8d88406ca1ac0c9d00891e
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SHA1
868775753285eb4cbf16f651c90e5b5b9d5344ca
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SHA256
a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477
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SHA512
ad6eed4f7f4ee7bb3ac1a6c62b6cb70fdda331fc027bb2b3613c87c23a11fee7ff6ea96f82995141adf83cc77bb5d866e3153906deeef99cb6638ac0d55bbd7e
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SSDEEP
49152:NKSHQE6bCrQt9J2m6qYk0f+BzgqdGFArOOO8EeNSlBbqHPgo81vjAIlxiZQJw/:N1wCr5kG+hEArjFEeNSldQg15xmh/
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/3264-2-0x0000000004E00000-0x00000000056EB000-memory.dmp family_glupteba behavioral2/memory/3264-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3264-82-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3264-113-0x0000000004E00000-0x00000000056EB000-memory.dmp family_glupteba behavioral2/memory/3324-118-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3264-164-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4636-193-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4636-205-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4636-207-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4636-210-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4636-214-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4636-217-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4636-219-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4636-223-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4636-226-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4636-229-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4636-231-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4636-235-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4636-238-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4056 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4636 csrss.exe 4588 injector.exe 4724 windefender.exe 2716 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa09-198.dat upx behavioral2/memory/4724-199-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2716-202-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4724-204-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2716-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2716-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2716-222-0x0000000000400000-0x00000000008DF000-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\"" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.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 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 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.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 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe File created C:\Windows\rss\csrss.exe a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.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 400 sc.exe -
pid Process 2412 powershell.exe 2688 powershell.exe 2240 powershell.exe 2276 powershell.exe 2088 powershell.exe 1144 powershell.exe 3760 powershell.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 1980 1144 WerFault.exe 81 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4968 schtasks.exe 2400 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.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\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-572 = "China Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1802 = "Line Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-302 = "Romance Standard 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\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.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,-3052 = "Qyzylorda Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-682 = "E. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 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,-11 = "Azores Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.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\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 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\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.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,-461 = "Afghanistan Daylight Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.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\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1144 powershell.exe 1144 powershell.exe 3264 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 3264 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 3760 powershell.exe 3760 powershell.exe 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 2412 powershell.exe 2412 powershell.exe 2688 powershell.exe 2688 powershell.exe 2240 powershell.exe 2240 powershell.exe 2276 powershell.exe 2276 powershell.exe 2088 powershell.exe 2088 powershell.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4636 csrss.exe 4636 csrss.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4636 csrss.exe 4636 csrss.exe 4588 injector.exe 4588 injector.exe 4636 csrss.exe 4636 csrss.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1144 powershell.exe Token: SeDebugPrivilege 3264 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Token: SeImpersonatePrivilege 3264 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe Token: SeDebugPrivilege 3760 powershell.exe Token: SeDebugPrivilege 2412 powershell.exe Token: SeDebugPrivilege 2688 powershell.exe Token: SeDebugPrivilege 2240 powershell.exe Token: SeDebugPrivilege 2276 powershell.exe Token: SeDebugPrivilege 2088 powershell.exe Token: SeSystemEnvironmentPrivilege 4636 csrss.exe Token: SeSecurityPrivilege 400 sc.exe Token: SeSecurityPrivilege 400 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3264 wrote to memory of 1144 3264 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 81 PID 3264 wrote to memory of 1144 3264 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 81 PID 3264 wrote to memory of 1144 3264 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 81 PID 3324 wrote to memory of 3760 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 90 PID 3324 wrote to memory of 3760 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 90 PID 3324 wrote to memory of 3760 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 90 PID 3324 wrote to memory of 4964 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 92 PID 3324 wrote to memory of 4964 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 92 PID 4964 wrote to memory of 4056 4964 cmd.exe 94 PID 4964 wrote to memory of 4056 4964 cmd.exe 94 PID 3324 wrote to memory of 2412 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 95 PID 3324 wrote to memory of 2412 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 95 PID 3324 wrote to memory of 2412 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 95 PID 3324 wrote to memory of 2688 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 97 PID 3324 wrote to memory of 2688 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 97 PID 3324 wrote to memory of 2688 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 97 PID 3324 wrote to memory of 4636 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 99 PID 3324 wrote to memory of 4636 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 99 PID 3324 wrote to memory of 4636 3324 a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe 99 PID 4636 wrote to memory of 2240 4636 csrss.exe 100 PID 4636 wrote to memory of 2240 4636 csrss.exe 100 PID 4636 wrote to memory of 2240 4636 csrss.exe 100 PID 4636 wrote to memory of 2276 4636 csrss.exe 105 PID 4636 wrote to memory of 2276 4636 csrss.exe 105 PID 4636 wrote to memory of 2276 4636 csrss.exe 105 PID 4636 wrote to memory of 2088 4636 csrss.exe 108 PID 4636 wrote to memory of 2088 4636 csrss.exe 108 PID 4636 wrote to memory of 2088 4636 csrss.exe 108 PID 4636 wrote to memory of 4588 4636 csrss.exe 110 PID 4636 wrote to memory of 4588 4636 csrss.exe 110 PID 4724 wrote to memory of 3520 4724 windefender.exe 116 PID 4724 wrote to memory of 3520 4724 windefender.exe 116 PID 4724 wrote to memory of 3520 4724 windefender.exe 116 PID 3520 wrote to memory of 400 3520 cmd.exe 117 PID 3520 wrote to memory of 400 3520 cmd.exe 117 PID 3520 wrote to memory of 400 3520 cmd.exe 117 -
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\a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe"C:\Users\Admin\AppData\Local\Temp\a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3264 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1144 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 16883⤵
- Program crash
PID:1980
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C:\Users\Admin\AppData\Local\Temp\a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.exe"C:\Users\Admin\AppData\Local\Temp\a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477.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:3324 -
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:3760
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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:4964 -
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:4056
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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:2412
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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:2688
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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:4636 -
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:2240
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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:4968
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:436
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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:2276
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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:2088
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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:4588
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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:2400
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4724 -
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:3520 -
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:400
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1144 -ip 11441⤵PID:1976
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2716
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56f56f0850a264822fe478cf3aba2fcf7
SHA1cc5a15a080b8639a44ba56de92930e9de10b8b09
SHA2567d93e271fb7f57614750e8c2a80b04052fd57f029ae6847966dc3f98c87d095a
SHA5127612d59608fa124cbb9165786c106baec90a869e608d33eef60481eadc27976a09232cb424e1da8338dd949f113cd9195d3f046c6f309e10ed752c9d31e0ec0c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5519514795aa453452b1dcf80d763dfdc
SHA1272324493788ecb7c53813c1ce2a60c2a20b8479
SHA256a8b78596d1e0e54ecfd7be9a94e137d5d067ba3553fcf78527c4aa67fc9ecfe4
SHA512a7c44fb5ee2015f01458f7f6e820b855da00e086128130eee783f546e19dd8e5b8c31a0a2f327dec6cee29a340fa04f77e84dbbc6256fa2e722d601dc4a951fe
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55de79cf06258264983097988a53d48a5
SHA10c724a3f134028998854f6fe5c9c067f2131bbd4
SHA256cfa262617cf24658dfd25c59e4e38292e4be01c0755ae64a0eb0068e31844f60
SHA5122d007378443c197158fcc47dc1b69da63ef849f12b3335a2b789c1723cb5a9dc699c2483946ef052f3b76271c0f346a7fb03de5cba9ae4e7c4f8082165bd3447
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f0e628686c91aa76668c1a8f54201d81
SHA1a59b21483f9ed7adc44411e21a1c8d6e7bce757a
SHA25665fbc646767704da716afb10a60aedae122a6019d4a1b991789f51cdf4cef0e6
SHA512ae68ac89666d42c925707e22a6f7e0d550a302d32c1f02ed45053b0ba0929789e0fd6ab62685030da97e120b19d60392e89deb757285898d6926fc6079c42947
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD598c494056e6c8be36eb66eae44728371
SHA12176efa912fa1a934285bc66ad2d90b681cc8cf2
SHA256ff3e6bfd9fc8c6a91621f8766dd25a9543bd8f7740effefc37c030a20af579c2
SHA512ca3a70ea736abaec52e61b82c164dd0b68c9019fcb875b0fdf5d5c0c5c635b285aa33e06246c03197f477eee7a43f4e96e33e591099ab4be72617310dfe1d5c1
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Filesize
4.1MB
MD5aaba2a703d8d88406ca1ac0c9d00891e
SHA1868775753285eb4cbf16f651c90e5b5b9d5344ca
SHA256a8ac4f8351a7bd6b000375dcc3f71a324af6b6fd287e78a798289eac097f2477
SHA512ad6eed4f7f4ee7bb3ac1a6c62b6cb70fdda331fc027bb2b3613c87c23a11fee7ff6ea96f82995141adf83cc77bb5d866e3153906deeef99cb6638ac0d55bbd7e
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec