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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-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 18 IoCs
resource yara_rule behavioral2/memory/3468-2-0x00000000050A0000-0x000000000598B000-memory.dmp family_glupteba behavioral2/memory/3468-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3468-38-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/3468-53-0x00000000050A0000-0x000000000598B000-memory.dmp family_glupteba behavioral2/memory/3468-51-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/3468-99-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4840-98-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/4840-128-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/4660-196-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/4660-211-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/4660-218-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/4660-221-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/4660-225-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/4660-229-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/4660-233-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/4660-237-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/4660-241-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/4660-245-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2024 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4660 csrss.exe 652 injector.exe 1584 windefender.exe 1988 windefender.exe -
resource yara_rule behavioral2/files/0x001a00000002ab44-207.dat upx behavioral2/memory/1584-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1988-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1584-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1988-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1988-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-293923083-2364846840-4256557006-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\S-1-5-21-293923083-2364846840-4256557006-1000\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 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe -
Drops file in Windows directory 4 IoCs
description ioc Process 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 File opened for modification C:\Windows\rss a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2432 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 1812 schtasks.exe 984 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\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\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,-41 = "E. South America Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.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,-492 = "India Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-891 = "Morocco 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\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-241 = "Samoa Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\2a\52C64B7E\@tzres.dll,-334 = "Jordan Daylight 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-631 = "Tokyo Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4596 powershell.exe 4596 powershell.exe 3468 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 3468 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 4500 powershell.exe 4500 powershell.exe 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 2396 powershell.exe 2396 powershell.exe 4084 powershell.exe 4084 powershell.exe 1692 powershell.exe 1692 powershell.exe 3060 powershell.exe 3060 powershell.exe 3784 powershell.exe 3784 powershell.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 4660 csrss.exe 4660 csrss.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 4660 csrss.exe 4660 csrss.exe 652 injector.exe 652 injector.exe 4660 csrss.exe 4660 csrss.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe 652 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4596 powershell.exe Token: SeDebugPrivilege 3468 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Token: SeImpersonatePrivilege 3468 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe Token: SeDebugPrivilege 4500 powershell.exe Token: SeDebugPrivilege 2396 powershell.exe Token: SeDebugPrivilege 4084 powershell.exe Token: SeDebugPrivilege 1692 powershell.exe Token: SeDebugPrivilege 3060 powershell.exe Token: SeDebugPrivilege 3784 powershell.exe Token: SeSystemEnvironmentPrivilege 4660 csrss.exe Token: SeSecurityPrivilege 2432 sc.exe Token: SeSecurityPrivilege 2432 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3468 wrote to memory of 4596 3468 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 81 PID 3468 wrote to memory of 4596 3468 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 81 PID 3468 wrote to memory of 4596 3468 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 81 PID 4840 wrote to memory of 4500 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 86 PID 4840 wrote to memory of 4500 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 86 PID 4840 wrote to memory of 4500 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 86 PID 4840 wrote to memory of 2600 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 88 PID 4840 wrote to memory of 2600 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 88 PID 2600 wrote to memory of 2024 2600 cmd.exe 90 PID 2600 wrote to memory of 2024 2600 cmd.exe 90 PID 4840 wrote to memory of 2396 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 91 PID 4840 wrote to memory of 2396 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 91 PID 4840 wrote to memory of 2396 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 91 PID 4840 wrote to memory of 4084 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 93 PID 4840 wrote to memory of 4084 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 93 PID 4840 wrote to memory of 4084 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 93 PID 4840 wrote to memory of 4660 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 95 PID 4840 wrote to memory of 4660 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 95 PID 4840 wrote to memory of 4660 4840 a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156.exe 95 PID 4660 wrote to memory of 1692 4660 csrss.exe 96 PID 4660 wrote to memory of 1692 4660 csrss.exe 96 PID 4660 wrote to memory of 1692 4660 csrss.exe 96 PID 4660 wrote to memory of 3060 4660 csrss.exe 101 PID 4660 wrote to memory of 3060 4660 csrss.exe 101 PID 4660 wrote to memory of 3060 4660 csrss.exe 101 PID 4660 wrote to memory of 3784 4660 csrss.exe 104 PID 4660 wrote to memory of 3784 4660 csrss.exe 104 PID 4660 wrote to memory of 3784 4660 csrss.exe 104 PID 4660 wrote to memory of 652 4660 csrss.exe 106 PID 4660 wrote to memory of 652 4660 csrss.exe 106 PID 1584 wrote to memory of 4472 1584 windefender.exe 112 PID 1584 wrote to memory of 4472 1584 windefender.exe 112 PID 1584 wrote to memory of 4472 1584 windefender.exe 112 PID 4472 wrote to memory of 2432 4472 cmd.exe 113 PID 4472 wrote to memory of 2432 4472 cmd.exe 113 PID 4472 wrote to memory of 2432 4472 cmd.exe 113 -
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:3468 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4596
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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:4840 -
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:4500
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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:2600 -
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:2024
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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:2396
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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:4084
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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:4660 -
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:1692
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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:1812
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4204
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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:3060
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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:3784
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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:652
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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:984
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1584 -
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:4472 -
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:2432
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1988
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
MD52d7193c7983c316eabb8b70dbffdb49b
SHA18713217ebd024673721fa9f8767fe080609e9adc
SHA2561b744b88c0f9e919af63a50d2d9118a9b81db4f73519fb102dada6499dec0fff
SHA5127c45ee56ae32349b1ebec41fc875712b797ab322104269dcab4db694824a19f31c69993fcbeca4eb5fec201f621b6ca5f9ce1f54a504ff5de54252089ad02597
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f41a1034d071f41621e2e3daf133e191
SHA1d160ea3ce5fba7f885ae9db989ac9b7304e25b01
SHA256981c5fa19409e80b6cf2c757ede7c26257fbe202d843246109bd9e37214fbbaa
SHA512220fc28b7b2e7cfb4bad75c2446453bbc25faa68fd0c6fe3ce451c505cb871260f5139cdb8c21726075a01f748732addd948139935de42d23a4a6770e3adb305
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b7bbbd84f325e808996ff9e5e2b76b7d
SHA19e1e8a5ab3e951d66e21cebbacbce711574cd5d0
SHA256b8984a007bc83d182c9c3663b16af5aa89ab917339d72d41b754d8c725b02c8a
SHA5123a806133ad80d7bb835384f7844bc60fe984903bed9bf6851ad34443e76b5d77eebe75f61d52971f30923c2dd7684916791bbbdf78f6ea4c8f537b8cc89d22c6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD557e30d5170584f72de3482a70c9354a6
SHA11bd8936c07c46a47cfd3580a939d38fdd0a77143
SHA2560f382c7d0746aa40c2de1e488e8b2233e99a5a05ed640051ecdb09daa06d3605
SHA5122312f23faad1f835e6d9fbab085a877bde035420a26a08c5ff4946fa8e9f334f67735e035a2ff789d7cd0c8ae95bfb2fc8f5b984de872e13115fe912e4e2027c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52433657281088294c74909ec3c928c71
SHA1ce6bb718ce8e69352cbadd7c480f1fdf08fcc04f
SHA25689955f16fb0a6bedd582aff1aaf8fea313edb659f949559057c67d1df93108e7
SHA51247b56756f05035314b41d359cc828d8c34e73ec400c105de31742cc6b72dd43c39257424db890c4d900e6337ba0603861fad9816eba547741b29b6b765926a13
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Filesize
4.2MB
MD53d5be63fd6e5a65b5398e7872c3f91fd
SHA1d231f844ecb84ad5bd9a7c2686683e4197b42411
SHA256a36541b2e0960200ba66f593e74f5b2ac97f76da560fb83ce6200eea03bf2156
SHA51238032e4ddb2b47e5ae91324f3f7e3d68697b9129bfcf7b628cbe64d1c15f75879e9fa2b49d763f1909b351aac40a6c9d9c37be26ab0d24fb0a563c6fd28b6a04
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec