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Analysis
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max time kernel
150s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
26/03/2024, 16:47
Static task
static1
Behavioral task
behavioral1
Sample
c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe
Resource
win10v2004-20240226-en
General
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Target
c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe
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Size
4.2MB
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MD5
f71979ba572019dfe8b11ecb21b8f878
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SHA1
9fbc69278bd9eb633e42e35d359995f68891ecc7
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SHA256
c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd
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SHA512
f57c5445eb7492d181b7bf83ef47a1b469854a1929761e483e530cd63a1f49e5549f29d2a92b8d0df9be27159947a63408b1a0a1dd58eb12bba35aca68eb87eb
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SSDEEP
98304:BYWrJMekhR9E/ZS95j2Ifm5OQ8iHBZfTVAlqzUD6NYlN:+ymJ5j2K+OQ35AlqID62D
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/4160-2-0x0000000003270000-0x0000000003B5B000-memory.dmp family_glupteba behavioral2/memory/4160-3-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/4160-52-0x0000000003270000-0x0000000003B5B000-memory.dmp family_glupteba behavioral2/memory/4160-54-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/1308-55-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/1308-112-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/1308-126-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/1308-146-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/4508-238-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/4508-247-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/4508-253-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/4508-255-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/4508-257-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/4508-259-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/4508-261-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/4508-263-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/4508-265-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/4508-267-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/4508-269-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/4508-271-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3596 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4508 csrss.exe 980 injector.exe 4564 windefender.exe 1536 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a7bf-246.dat upx behavioral2/memory/4564-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1536-254-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1536-258-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4181651180-3163410697-3990547336-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Set value (str) \REGISTRY\USER\S-1-5-21-4181651180-3163410697-3990547336-1000\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 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 -
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 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2236 sc.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2476 4160 WerFault.exe 77 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 236 schtasks.exe 1868 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-221 = "Alaskan Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-251 = "Dateline Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2892 = "Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-351 = "FLE Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\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\22\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2751 = "Tomsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates 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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-372 = "Jerusalem Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-302 = "Romance Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3524 powershell.exe 3524 powershell.exe 4160 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 4160 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 1860 powershell.exe 1860 powershell.exe 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 2884 powershell.exe 2884 powershell.exe 1272 powershell.exe 1272 powershell.exe 3788 powershell.exe 3788 powershell.exe 240 powershell.exe 240 powershell.exe 2568 powershell.exe 2568 powershell.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 4508 csrss.exe 4508 csrss.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 4508 csrss.exe 4508 csrss.exe 980 injector.exe 980 injector.exe 4508 csrss.exe 4508 csrss.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe 980 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3524 powershell.exe Token: SeDebugPrivilege 4160 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Token: SeImpersonatePrivilege 4160 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe Token: SeDebugPrivilege 1860 powershell.exe Token: SeDebugPrivilege 2884 powershell.exe Token: SeDebugPrivilege 1272 powershell.exe Token: SeDebugPrivilege 3788 powershell.exe Token: SeDebugPrivilege 240 powershell.exe Token: SeDebugPrivilege 2568 powershell.exe Token: SeSystemEnvironmentPrivilege 4508 csrss.exe Token: SeSecurityPrivilege 2236 sc.exe Token: SeSecurityPrivilege 2236 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4160 wrote to memory of 3524 4160 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 79 PID 4160 wrote to memory of 3524 4160 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 79 PID 4160 wrote to memory of 3524 4160 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 79 PID 1308 wrote to memory of 1860 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 87 PID 1308 wrote to memory of 1860 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 87 PID 1308 wrote to memory of 1860 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 87 PID 1308 wrote to memory of 3004 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 89 PID 1308 wrote to memory of 3004 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 89 PID 3004 wrote to memory of 3596 3004 cmd.exe 91 PID 3004 wrote to memory of 3596 3004 cmd.exe 91 PID 1308 wrote to memory of 2884 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 92 PID 1308 wrote to memory of 2884 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 92 PID 1308 wrote to memory of 2884 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 92 PID 1308 wrote to memory of 1272 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 94 PID 1308 wrote to memory of 1272 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 94 PID 1308 wrote to memory of 1272 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 94 PID 1308 wrote to memory of 4508 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 96 PID 1308 wrote to memory of 4508 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 96 PID 1308 wrote to memory of 4508 1308 c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe 96 PID 4508 wrote to memory of 3788 4508 csrss.exe 97 PID 4508 wrote to memory of 3788 4508 csrss.exe 97 PID 4508 wrote to memory of 3788 4508 csrss.exe 97 PID 4508 wrote to memory of 240 4508 csrss.exe 101 PID 4508 wrote to memory of 240 4508 csrss.exe 101 PID 4508 wrote to memory of 240 4508 csrss.exe 101 PID 4508 wrote to memory of 2568 4508 csrss.exe 105 PID 4508 wrote to memory of 2568 4508 csrss.exe 105 PID 4508 wrote to memory of 2568 4508 csrss.exe 105 PID 4508 wrote to memory of 980 4508 csrss.exe 107 PID 4508 wrote to memory of 980 4508 csrss.exe 107 PID 4564 wrote to memory of 2416 4564 windefender.exe 113 PID 4564 wrote to memory of 2416 4564 windefender.exe 113 PID 4564 wrote to memory of 2416 4564 windefender.exe 113 PID 2416 wrote to memory of 2236 2416 cmd.exe 114 PID 2416 wrote to memory of 2236 2416 cmd.exe 114 PID 2416 wrote to memory of 2236 2416 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\c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe"C:\Users\Admin\AppData\Local\Temp\c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4160 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3524
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C:\Users\Admin\AppData\Local\Temp\c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.exe"C:\Users\Admin\AppData\Local\Temp\c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd.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:1308 -
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:1860
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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:3004 -
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:3596
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2884
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1272
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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:4508 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3788
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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:236
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4000
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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:240
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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:2568
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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:980
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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:1868
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4564 -
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:2416 -
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:2236
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4160 -s 8962⤵
- Program crash
PID:2476
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4160 -ip 41601⤵PID:1092
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1536
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
MD5187b7ea0b43bfeba21ebe9df224d8f5c
SHA1ac8512aaa4038f8bac1fb00207c75f0d09592f94
SHA2561465fbe3ca0f2277e75d44ff63ae39376853329d7a52cc93b6dce6a8cd8e65b2
SHA5127368ccb6dd81ff7f06734e31fadbaa41579b9dff85e56671c18fa8dd3fa36ef6daff2cd7c817b6ab5360c441b2e40d70eceb91111e7c31cc94db91836b03467a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cedd0ee2cf92945e845600987db56399
SHA17ba2671b56757d2e60390914ef7e778335fa16de
SHA256da95d5a30ba584f9e1209b05d318afec1be773f781e3eed517e6b210b286b21a
SHA5124510c12c99f69bec3229fbf0414ee348843fd2dc6224af388cf1960a30ae6277baaed302ab5fae5a00752f2eb5796a70e18e4a031001e91a33f3eb7cdebebd85
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51ddf018052fc3814630b08efb3650c88
SHA15b82db33861d7ac51013b1bd5d9a9671ad3e3e5a
SHA256ce022af7c4f0f92150d2fe0d0681376b51ed3c835c65eb2007bb67fbd0ea524e
SHA512f74b07181c4d23633d137991866d6d31f625edbc10fc0b81425d99e34a225756e640a9e51e30398a1e6a3830dafc23705c6b6127ac9a60774cbb12d6d3a78358
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD526dad627b726139e491a669f2b865cf5
SHA1fd77c363e8b818bb43e7e0536b4f7ebeb681fb1c
SHA256b1265d314b0d9d806a3973d7dc79ef0e6910277666b5862bbe6ad4e3ac240288
SHA5128d6d2b1da8af5a88bbe68cab56777a4aa86877ce575d9db582a5cc4169eb24ded40b96cccd128b1031f43fda9a55fe3a32802a035ba9bef5b5e8d2f363c4149c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5dd18489673728bcb875173696c085fe6
SHA1c18b7e08c58ab1f9fa0c453d349eab91e8d995ce
SHA256f388d3f26b659a8ad54ca6aaf16984a81540908d3a0cf529ef67b0ac6a36d56a
SHA51228ffca215c8ae32d12d584a1601be583e25db0c546b475252ff5efd85d4de86967d7093eb9878e2f2a65a4242107f8524bdf2eeea227fa0dc5bc7fca1840f36a
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Filesize
4.2MB
MD5f71979ba572019dfe8b11ecb21b8f878
SHA19fbc69278bd9eb633e42e35d359995f68891ecc7
SHA256c536a74d3121368a14adf4429d6afdadb030ff770f12c0d995a637ffc9d318dd
SHA512f57c5445eb7492d181b7bf83ef47a1b469854a1929761e483e530cd63a1f49e5549f29d2a92b8d0df9be27159947a63408b1a0a1dd58eb12bba35aca68eb87eb
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec