Analysis
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max time kernel
149s -
max time network
155s -
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 12:29
Static task
static1
Behavioral task
behavioral1
Sample
b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe
Resource
win10v2004-20240508-en
General
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Target
b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe
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Size
4.1MB
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MD5
bbab1a3a4dc994a45b7eca2e9e76d0a6
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SHA1
58c28a4329081d20a3cf049c2226234f9f67ab59
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SHA256
b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157
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SHA512
94edd11d9cedf63eef04aebf8389e9a3fd00cb64e8430750d2726ca236c32682517c60f2e623e92ee88e024bb9e370f4a0b9125fb09afc253981ade81499f34f
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SSDEEP
98304:8d7tSzSG1TEQyj2soCVZzfOSLUhtCaFAX/iUIATxmmpvA2aCdQuFREnErR:eRMSLQaVNfPUP9FaqUIATxXaCdFFREng
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/232-2-0x0000000004DD0000-0x00000000056BB000-memory.dmp family_glupteba behavioral2/memory/232-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/232-8-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/232-55-0x0000000004DD0000-0x00000000056BB000-memory.dmp family_glupteba behavioral2/memory/232-53-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/232-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/768-79-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/768-124-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/768-132-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3224-200-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3224-209-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3224-221-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3224-225-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3224-229-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3224-233-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3224-237-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3224-241-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3224-245-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3480 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3224 csrss.exe 3216 injector.exe 3408 windefender.exe 5008 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9d6-212.dat upx behavioral2/memory/3408-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5008-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3408-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5008-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5008-232-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\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 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe File created C:\Windows\rss\csrss.exe b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.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 2960 sc.exe -
pid Process 3288 powershell.exe 2660 powershell.exe 3496 powershell.exe 3448 powershell.exe 2848 powershell.exe 3404 powershell.exe 1908 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1928 schtasks.exe 4376 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,-2752 = "Tomsk Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-392 = "Arab 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" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs 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\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "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\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.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,-1971 = "Belarus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs 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\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2452 = "Saint Pierre Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1908 powershell.exe 1908 powershell.exe 232 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 232 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 3288 powershell.exe 3288 powershell.exe 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 2660 powershell.exe 2660 powershell.exe 3496 powershell.exe 3496 powershell.exe 3448 powershell.exe 3448 powershell.exe 2848 powershell.exe 2848 powershell.exe 3404 powershell.exe 3404 powershell.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3224 csrss.exe 3224 csrss.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3224 csrss.exe 3224 csrss.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3224 csrss.exe 3224 csrss.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe 3216 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1908 powershell.exe Token: SeDebugPrivilege 232 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Token: SeImpersonatePrivilege 232 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Token: SeDebugPrivilege 3288 powershell.exe Token: SeDebugPrivilege 2660 powershell.exe Token: SeDebugPrivilege 3496 powershell.exe Token: SeDebugPrivilege 3448 powershell.exe Token: SeDebugPrivilege 2848 powershell.exe Token: SeDebugPrivilege 3404 powershell.exe Token: SeSystemEnvironmentPrivilege 3224 csrss.exe Token: SeSecurityPrivilege 2960 sc.exe Token: SeSecurityPrivilege 2960 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 232 wrote to memory of 1908 232 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 82 PID 232 wrote to memory of 1908 232 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 82 PID 232 wrote to memory of 1908 232 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 82 PID 768 wrote to memory of 3288 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 87 PID 768 wrote to memory of 3288 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 87 PID 768 wrote to memory of 3288 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 87 PID 768 wrote to memory of 3668 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 89 PID 768 wrote to memory of 3668 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 89 PID 3668 wrote to memory of 3480 3668 cmd.exe 91 PID 3668 wrote to memory of 3480 3668 cmd.exe 91 PID 768 wrote to memory of 2660 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 92 PID 768 wrote to memory of 2660 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 92 PID 768 wrote to memory of 2660 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 92 PID 768 wrote to memory of 3496 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 94 PID 768 wrote to memory of 3496 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 94 PID 768 wrote to memory of 3496 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 94 PID 768 wrote to memory of 3224 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 96 PID 768 wrote to memory of 3224 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 96 PID 768 wrote to memory of 3224 768 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 96 PID 3224 wrote to memory of 3448 3224 csrss.exe 97 PID 3224 wrote to memory of 3448 3224 csrss.exe 97 PID 3224 wrote to memory of 3448 3224 csrss.exe 97 PID 3224 wrote to memory of 2848 3224 csrss.exe 103 PID 3224 wrote to memory of 2848 3224 csrss.exe 103 PID 3224 wrote to memory of 2848 3224 csrss.exe 103 PID 3224 wrote to memory of 3404 3224 csrss.exe 105 PID 3224 wrote to memory of 3404 3224 csrss.exe 105 PID 3224 wrote to memory of 3404 3224 csrss.exe 105 PID 3224 wrote to memory of 3216 3224 csrss.exe 107 PID 3224 wrote to memory of 3216 3224 csrss.exe 107 PID 3408 wrote to memory of 3592 3408 windefender.exe 113 PID 3408 wrote to memory of 3592 3408 windefender.exe 113 PID 3408 wrote to memory of 3592 3408 windefender.exe 113 PID 3592 wrote to memory of 2960 3592 cmd.exe 114 PID 3592 wrote to memory of 2960 3592 cmd.exe 114 PID 3592 wrote to memory of 2960 3592 cmd.exe 114 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe"C:\Users\Admin\AppData\Local\Temp\b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:232 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1908
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C:\Users\Admin\AppData\Local\Temp\b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe"C:\Users\Admin\AppData\Local\Temp\b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.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:768 -
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:3288
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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:3668 -
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:3480
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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:2660
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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:3496
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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:3224 -
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:3448
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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:1928
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2104
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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:2848
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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:3404
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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:3216
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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:4376
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3408 -
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:3592 -
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:2960
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:5008
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
MD555302b87a6eede5886dd9d2d210afec5
SHA1e7397edb6f099f870e73c061cc1b80c233c5b972
SHA256c13318b98ec5877042006cc877dc90ac284f31137af5ca05d1dc58d6bc2c67cb
SHA512bd9f1593ebd3b495ddcd878b3a6f29dc8679e83c01c5f020f98020ec2be61fb910addee6357e0af00644ae32fc5a567b3e3347851eb3fc3739af2b41aab3e9b9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD541ec085a738127e05f399d6d73da0c09
SHA148dee3e758deb431b7e75c4086a52044959a6fdd
SHA2569b5d8610ab9fb915b55baea5ea3943031f9d2bf1a0dc1d3133fee4b982fe36ab
SHA512abfb968f4739effab113486d18f370e548cf7c842e03a5a165a68e1f925125a44c0307d8cb7362246a089054080dfc4027538280663c5c3a98e4a3d767ab7733
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f97eece350738a405ec43f9f6fba2934
SHA1f49a23c653d228b7fae3d79079898eacfee4842d
SHA256c25d27a2acf77f0a759c8a21145b91cf03d2fb08d81718a7a8a866eb25ccc23d
SHA5123d2d7c579d853fdf81b5e32dbbf9423e8aab35af28a983708f49caca45f25ee94f5aca5328e90b9779a8d89c5365e898452182b0debd8726699311b1cc6a574c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57ff96fff7a11059ad61b31f8c1de5fb5
SHA1a6ad6a47b2b3922c886c6fbb7f824340c5d7f109
SHA2563caabdcb5f658289c69da46eef6366d9a9027ee3e8f42a29709cfe5c760a94b3
SHA5121ba63e15e19e6a2bdaea50b802a30578fce067b760caab7b6be4542b18326012e892b49c7fadd5f4ee6167ca0126c0e2a44d7d3373394596fea57451f6e3cef3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55c9476a60cadc321173a4d875d33565a
SHA131d2de48b4c5a68f42c5a4eec2e4a1d8e501970d
SHA256cf7fda0b5aa33b9c8eacaf4c8ae3093427cf5fdb4f4fff73c21b8e9bdb906832
SHA512d8639673d454ae2da140507dfbfd0950b4ffd4eb1ce363d3f69a05519ff5ea02c52bee622601fa489a3c4edc558f5b1e3a6e153a2e043a38c5a57007a68ed5f3
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Filesize
4.1MB
MD5bbab1a3a4dc994a45b7eca2e9e76d0a6
SHA158c28a4329081d20a3cf049c2226234f9f67ab59
SHA256b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157
SHA51294edd11d9cedf63eef04aebf8389e9a3fd00cb64e8430750d2726ca236c32682517c60f2e623e92ee88e024bb9e370f4a0b9125fb09afc253981ade81499f34f
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec