Analysis
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max time kernel
145s -
max time network
147s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
27-04-2024 17:19
Static task
static1
Behavioral task
behavioral1
Sample
8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe
Resource
win10v2004-20240419-en
General
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Target
8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe
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Size
4.1MB
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MD5
e7115650bf9689f11d891fb213ed8305
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SHA1
7db1d50e324b18c8512276aeef00bb62863304f3
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SHA256
8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca
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SHA512
add482ec474483a488f3cbb19b911ccd7774b7cab636e10d1c10f182502fa5bd8c598778f55583ff947775881372494a88008cd246d6dac3631d432ae37f3230
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SSDEEP
98304:9B+pokA3uLr67t8MVyOHX+J6fh0VTXiCNKfogoP0GUbubAeB:9Bc4uLrIK0u8fYNDf0GUb+AeB
Malware Config
Signatures
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Glupteba payload 16 IoCs
resource yara_rule behavioral2/memory/4820-2-0x0000000005170000-0x0000000005A5B000-memory.dmp family_glupteba behavioral2/memory/4820-3-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral2/memory/4820-50-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral2/memory/4820-52-0x0000000005170000-0x0000000005A5B000-memory.dmp family_glupteba behavioral2/memory/248-109-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral2/memory/248-127-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral2/memory/3936-175-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral2/memory/3936-205-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral2/memory/3936-217-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral2/memory/3936-221-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral2/memory/3936-225-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral2/memory/3936-229-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral2/memory/3936-233-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral2/memory/3936-237-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral2/memory/3936-241-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral2/memory/3936-245-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3672 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3936 csrss.exe 916 injector.exe 2020 windefender.exe 4940 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9dd-208.dat upx behavioral2/memory/2020-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4940-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2020-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4940-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4940-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\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 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe File created C:\Windows\rss\csrss.exe 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4720 sc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4204 schtasks.exe 3056 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,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3141 = "South Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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,-111 = "Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.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,-1411 = "Syria Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-562 = "SE Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-251 = "Dateline Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-334 = "Jordan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-441 = "Arabian Daylight Time" windefender.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,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.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\@tzres.dll,-672 = "AUS Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-261 = "GMT Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-364 = "Middle East Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.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,-302 = "Romance Standard Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.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,-661 = "Cen. Australia 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,-512 = "Central Asia Standard Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-82 = "Atlantic Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4988 powershell.exe 4988 powershell.exe 4820 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 4820 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 1172 powershell.exe 1172 powershell.exe 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 4908 powershell.exe 4908 powershell.exe 1028 powershell.exe 1028 powershell.exe 4992 powershell.exe 4992 powershell.exe 3568 powershell.exe 3568 powershell.exe 1700 powershell.exe 1700 powershell.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 3936 csrss.exe 3936 csrss.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 3936 csrss.exe 3936 csrss.exe 916 injector.exe 916 injector.exe 3936 csrss.exe 3936 csrss.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe 916 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4988 powershell.exe Token: SeDebugPrivilege 4820 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Token: SeImpersonatePrivilege 4820 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe Token: SeDebugPrivilege 1172 powershell.exe Token: SeDebugPrivilege 4908 powershell.exe Token: SeDebugPrivilege 1028 powershell.exe Token: SeDebugPrivilege 4992 powershell.exe Token: SeDebugPrivilege 3568 powershell.exe Token: SeDebugPrivilege 1700 powershell.exe Token: SeSystemEnvironmentPrivilege 3936 csrss.exe Token: SeSecurityPrivilege 4720 sc.exe Token: SeSecurityPrivilege 4720 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4820 wrote to memory of 4988 4820 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 84 PID 4820 wrote to memory of 4988 4820 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 84 PID 4820 wrote to memory of 4988 4820 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 84 PID 248 wrote to memory of 1172 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 89 PID 248 wrote to memory of 1172 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 89 PID 248 wrote to memory of 1172 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 89 PID 248 wrote to memory of 1988 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 91 PID 248 wrote to memory of 1988 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 91 PID 1988 wrote to memory of 3672 1988 cmd.exe 93 PID 1988 wrote to memory of 3672 1988 cmd.exe 93 PID 248 wrote to memory of 4908 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 94 PID 248 wrote to memory of 4908 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 94 PID 248 wrote to memory of 4908 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 94 PID 248 wrote to memory of 1028 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 96 PID 248 wrote to memory of 1028 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 96 PID 248 wrote to memory of 1028 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 96 PID 248 wrote to memory of 3936 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 98 PID 248 wrote to memory of 3936 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 98 PID 248 wrote to memory of 3936 248 8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe 98 PID 3936 wrote to memory of 4992 3936 csrss.exe 99 PID 3936 wrote to memory of 4992 3936 csrss.exe 99 PID 3936 wrote to memory of 4992 3936 csrss.exe 99 PID 3936 wrote to memory of 3568 3936 csrss.exe 105 PID 3936 wrote to memory of 3568 3936 csrss.exe 105 PID 3936 wrote to memory of 3568 3936 csrss.exe 105 PID 3936 wrote to memory of 1700 3936 csrss.exe 107 PID 3936 wrote to memory of 1700 3936 csrss.exe 107 PID 3936 wrote to memory of 1700 3936 csrss.exe 107 PID 3936 wrote to memory of 916 3936 csrss.exe 109 PID 3936 wrote to memory of 916 3936 csrss.exe 109 PID 2020 wrote to memory of 440 2020 windefender.exe 115 PID 2020 wrote to memory of 440 2020 windefender.exe 115 PID 2020 wrote to memory of 440 2020 windefender.exe 115 PID 440 wrote to memory of 4720 440 cmd.exe 116 PID 440 wrote to memory of 4720 440 cmd.exe 116 PID 440 wrote to memory of 4720 440 cmd.exe 116 -
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\8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe"C:\Users\Admin\AppData\Local\Temp\8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4820 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4988
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C:\Users\Admin\AppData\Local\Temp\8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.exe"C:\Users\Admin\AppData\Local\Temp\8d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca.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:248 -
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:1172
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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:1988 -
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:3672
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4908
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1028
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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:3936 -
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:4992
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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:4204
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4584
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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:3568
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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:1700
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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:916
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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:3056
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2020 -
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:440 -
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:4720
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4940
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
MD52359e487c1f35feb57115f2a06d74770
SHA165de9ee928a08ec6b27c441b4f9cd0ce1995b959
SHA2562f810218f54dc920dc8fcb95e0aecf3cdf7f1e1bfa9d5720fc457e54afaceec5
SHA5122e3a54bc2e172fe2f0e522c802aa8f61b05892d0b04cc0b2d0583662377154001265a802810bee8aba98025cf343c55cc267337e6ca07cb71404fe7c6f072c74
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54c76591e7af3d535bf71a617cbf1ba5d
SHA125e74620ccb1a1b0674e166963e7db01b83b0ecd
SHA256c0c1b2882ce553b0ebc9f9d051c74538955754020100fcec00445b3507e64712
SHA512086692ac966a8803488e220a259e5887d57343d3488fa8221eaf0e50220e03f81084daf53cf16bf036749499cffb7b0b44581da07231856b946dec767282db6b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e94bae4edafa5842b3d568ca9e6c5b5c
SHA1111dd233f9c091c32f39ae2bf411d287a926c476
SHA256f4d97cde4c9285031a1427769583a099969ff0331889d6d983207270373a195c
SHA512b78c54cd2af1c7ea4979c9173884e5ea245e8166d1e272b4cbf8026d09bc10c91040448cd174a27adc335e907447591884a974db84c5730a6ecbd7c8db6fc0a7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5903e3e34820237e90aeb44436999b6c6
SHA1bdb15b01777174ade86bb8b48764a6280bff016c
SHA256936581bb5ac7affac43858d2c9eec744ff65fdbf1f27ca78f4166e23f52e7795
SHA5122e296a31633dda107b4213091ea21ce849496c2e2fce72d732c7b8847c19d1297a47574f6a5d7a9ff1acf8ac1f37112b853a3236e114cce928e869ee2f31c8c5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b27772140cc98f0a28c7fc4d76547eaa
SHA181a34f5d88a39e11586d22259a326089ba47ac50
SHA2561069278e4b4867d7c1f3c41ae0bdf6f208166328885a3b4803ccfca1dd37e81f
SHA51254a4de7fc104013bcdfbfe4ef191bf48b513124c487a0b3cc077e413124652c9b4ec28ec424ff666dc864af36593d81c6ea5337aadb0d81cfbecbe84429cfce2
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Filesize
4.1MB
MD5e7115650bf9689f11d891fb213ed8305
SHA17db1d50e324b18c8512276aeef00bb62863304f3
SHA2568d5b1f026a5668acb3adb434e7e8d2a825d0e5a418741f6c94ca6d89ea1c5cca
SHA512add482ec474483a488f3cbb19b911ccd7774b7cab636e10d1c10f182502fa5bd8c598778f55583ff947775881372494a88008cd246d6dac3631d432ae37f3230
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec