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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
02/05/2024, 02:29
Static task
static1
Behavioral task
behavioral1
Sample
a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe
Resource
win10v2004-20240419-en
General
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Target
a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe
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Size
4.2MB
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MD5
3d5be63fd6e5a65b5398e7872c3f91fd
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SHA1
d231f844ecb84ad5bd9a7c2686683e4197b42411
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SHA256
a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156
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SHA512
38032e4ddb2b47e5ae91324f3f7e3d68697b9129bfcf7b628cbe64d1c15f75879e9fa2b49d763f1909b351aac40a6c9d9c37be26ab0d24fb0a563c6fd28b6a04
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SSDEEP
98304:B7eDcesP6b5IT694YdsRCbr6ROEdWgREDlR1:ID3sGek4ssRCbr6ROcPgb
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/4544-2-0x0000000004FD0000-0x00000000058BB000-memory.dmp family_glupteba behavioral1/memory/4544-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4544-28-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral1/memory/4544-57-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral1/memory/4544-58-0x0000000004FD0000-0x00000000058BB000-memory.dmp family_glupteba behavioral1/memory/4544-83-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3044-82-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral1/memory/3044-139-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral1/memory/3784-162-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral1/memory/3784-221-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral1/memory/3784-234-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral1/memory/3784-238-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral1/memory/3784-241-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral1/memory/3784-245-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral1/memory/3784-249-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral1/memory/3784-254-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral1/memory/3784-257-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral1/memory/3784-261-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral1/memory/3784-265-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1988 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3784 csrss.exe 712 injector.exe 2240 windefender.exe 4612 windefender.exe -
resource yara_rule behavioral1/files/0x000b000000023ba4-225.dat upx behavioral1/memory/2240-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4612-230-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2240-232-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4612-236-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4612-244-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4612-256-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File 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 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe File created C:\Windows\rss\csrss.exe a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.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 1176 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 2612 schtasks.exe 2408 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.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,-82 = "Atlantic Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2591 = "Tocantins Daylight 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" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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,-2771 = "Omsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.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,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-401 = "Arabic Daylight Time" windefender.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,-2872 = "Magallanes Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2181 = "Astrakhan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2411 = "Marquesas Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.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,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates 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,-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,-1662 = "Bahia Standard Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.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,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 684 powershell.exe 684 powershell.exe 4544 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 4544 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 4392 powershell.exe 4392 powershell.exe 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 2500 powershell.exe 2500 powershell.exe 2408 powershell.exe 2408 powershell.exe 2408 powershell.exe 2428 powershell.exe 2428 powershell.exe 2520 powershell.exe 2520 powershell.exe 5084 powershell.exe 5084 powershell.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 3784 csrss.exe 3784 csrss.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 3784 csrss.exe 3784 csrss.exe 712 injector.exe 712 injector.exe 3784 csrss.exe 3784 csrss.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe 712 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 684 powershell.exe Token: SeDebugPrivilege 4544 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Token: SeImpersonatePrivilege 4544 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Token: SeDebugPrivilege 4392 powershell.exe Token: SeDebugPrivilege 2500 powershell.exe Token: SeDebugPrivilege 2408 powershell.exe Token: SeDebugPrivilege 2428 powershell.exe Token: SeDebugPrivilege 2520 powershell.exe Token: SeDebugPrivilege 5084 powershell.exe Token: SeSystemEnvironmentPrivilege 3784 csrss.exe Token: SeSecurityPrivilege 1176 sc.exe Token: SeSecurityPrivilege 1176 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4544 wrote to memory of 684 4544 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 97 PID 4544 wrote to memory of 684 4544 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 97 PID 4544 wrote to memory of 684 4544 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 97 PID 3044 wrote to memory of 4392 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 103 PID 3044 wrote to memory of 4392 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 103 PID 3044 wrote to memory of 4392 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 103 PID 3044 wrote to memory of 4684 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 105 PID 3044 wrote to memory of 4684 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 105 PID 4684 wrote to memory of 1988 4684 cmd.exe 107 PID 4684 wrote to memory of 1988 4684 cmd.exe 107 PID 3044 wrote to memory of 2500 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 108 PID 3044 wrote to memory of 2500 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 108 PID 3044 wrote to memory of 2500 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 108 PID 3044 wrote to memory of 2408 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 112 PID 3044 wrote to memory of 2408 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 112 PID 3044 wrote to memory of 2408 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 112 PID 3044 wrote to memory of 3784 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 114 PID 3044 wrote to memory of 3784 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 114 PID 3044 wrote to memory of 3784 3044 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 114 PID 3784 wrote to memory of 2428 3784 csrss.exe 115 PID 3784 wrote to memory of 2428 3784 csrss.exe 115 PID 3784 wrote to memory of 2428 3784 csrss.exe 115 PID 3784 wrote to memory of 2520 3784 csrss.exe 120 PID 3784 wrote to memory of 2520 3784 csrss.exe 120 PID 3784 wrote to memory of 2520 3784 csrss.exe 120 PID 3784 wrote to memory of 5084 3784 csrss.exe 123 PID 3784 wrote to memory of 5084 3784 csrss.exe 123 PID 3784 wrote to memory of 5084 3784 csrss.exe 123 PID 3784 wrote to memory of 712 3784 csrss.exe 125 PID 3784 wrote to memory of 712 3784 csrss.exe 125 PID 2240 wrote to memory of 2384 2240 windefender.exe 131 PID 2240 wrote to memory of 2384 2240 windefender.exe 131 PID 2240 wrote to memory of 2384 2240 windefender.exe 131 PID 2384 wrote to memory of 1176 2384 cmd.exe 132 PID 2384 wrote to memory of 1176 2384 cmd.exe 132 PID 2384 wrote to memory of 1176 2384 cmd.exe 132 -
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\a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe"C:\Users\Admin\AppData\Local\Temp\a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4544 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:684
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C:\Users\Admin\AppData\Local\Temp\a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe"C:\Users\Admin\AppData\Local\Temp\a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.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:3044 -
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:4392
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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:4684 -
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:1988
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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:2500
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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:2408
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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:3784 -
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:2428
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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:2612
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4536
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2520
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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:5084
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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:712
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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:2408
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2240 -
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:2384 -
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:1176
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4612
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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59b3dee601f2e914220baa73a2a1a96a4
SHA121427f70e1e20a5940716db7ec4a0a7b098dfcc7
SHA2562b3af62a25d7d7cb01f3d8558d1fb7fccf79878e22ee17a2a4be510d3c1a9423
SHA512e617d3b8b53b03b09dd6905f118cc8ea5cb2e68433b234701e76fbe01c8eb2601b8445756df7d4978da0dc764d66a23961c7ee66f940a7e37933fa759052e138
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e21880ba01a928930665c38defd8c04e
SHA17c4b7a2f285ae8c4e4f360a4f62b2e1db076f900
SHA256b31b1538fccd95011e2fc82b9524886866b8b8eda6dc7a50e2ea10ff4022662a
SHA51237df80bee3877661bd84cb7aa687b597f57a2a639b1f34f11a93c3637724fa5981ce787d2f4e0e2bf0794242b960d3b00c126e2be619eadd3b2d72425e1e5862
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5aaebede9fbc7a3a8970a0e6e56f4e935
SHA1bd89966043169f456a5908af0a83fb59959caf9c
SHA256026dd7faed6d7373e9c3aeb2143134141905a7f1dbf86ca672cc29a04414e2ec
SHA512909fe666f4a7196bcda0eb55d3597db527539488083c2c07d0b8f5ea2975e08508455e4d421e26528775b437f10197c165915efe615eac34a1a3fabc64068964
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a014deef89d9210479ecb54a0fa8576c
SHA18321780d64302a44e95e82e8230194ad551e48af
SHA2566cb15db8e63bb6503e391085483c33dd2c79e7f7f15b249a6d45e9f02b4166b1
SHA51278c4675745958a19b84c3ae7d02ef818a6d22f50b95f91fdddbe2dc2e3d53f978d4efd58fc8da53f04907452cf89c70ef8d3773edec0845e0af2cbb80bf31707
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5eac4d89e02420566e8abd7eb365a5b8c
SHA19eb5b68c6192dff8807bcb644dff90cf701e7943
SHA2568eeef521e04c08913eb4c7c68a83b0372d1b28c5d08bf84a78063426324bda6d
SHA5125f8c5f2cd92eeccd48307aabe397a4268eee37a71b61bd05266bec9acc1d2f666db4b6302a03703e99ac6e3ee817764317c0a78b2bb40bc107f8614dc0639f5f
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Filesize
4.2MB
MD53d5be63fd6e5a65b5398e7872c3f91fd
SHA1d231f844ecb84ad5bd9a7c2686683e4197b42411
SHA256a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156
SHA51238032e4ddb2b47e5ae91324f3f7e3d68697b9129bfcf7b628cbe64d1c15f75879e9fa2b49d763f1909b351aac40a6c9d9c37be26ab0d24fb0a563c6fd28b6a04
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec