Analysis
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max time kernel
150s -
max time network
126s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
25-04-2024 07:33
Static task
static1
Behavioral task
behavioral1
Sample
376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe
Resource
win10v2004-20240412-en
General
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Target
376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe
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Size
4.2MB
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MD5
f09db0054e54831218990914d5553426
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SHA1
f04ec8cc72f104d51464c102cfa2b1f6195cc5cd
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SHA256
376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f
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SHA512
144cd4343b3e363f549117f230db4a1f4dbc646a21bf99c0a9855b47f1942aaba5b49d743b681a3e351866b3740cd9a5e6e76ec1d02c1d9cd2cdee9912841fc0
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SSDEEP
98304:tPsj8nM8f9N7dpNQ5A13kFnblxOFQG3eoyMtxZc:BKe9pO6ublAFHdDtx2
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/5092-2-0x0000000005380000-0x0000000005C6B000-memory.dmp family_glupteba behavioral2/memory/5092-3-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/5092-41-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/5092-43-0x0000000005380000-0x0000000005C6B000-memory.dmp family_glupteba behavioral2/memory/1148-45-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/1148-83-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/1148-96-0x0000000003600000-0x0000000003A06000-memory.dmp family_glupteba behavioral2/memory/1148-123-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/1148-141-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/388-176-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/388-241-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/388-250-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/388-252-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/388-254-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/388-256-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/388-258-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/388-260-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/388-262-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/388-264-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1128 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 388 csrss.exe 4556 injector.exe 4580 windefender.exe 4792 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9c9-244.dat upx behavioral2/memory/4580-249-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4792-251-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4792-255-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe File created C:\Windows\rss\csrss.exe 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.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 4744 sc.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2872 3724 WerFault.exe 82 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3780 schtasks.exe 4004 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.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\26\52C64B7E\@tzres.dll,-2772 = "Omsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-261 = "GMT Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1802 = "Line Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2182 = "Astrakhan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates 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\26\52C64B7E\@tzres.dll,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-682 = "E. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-334 = "Jordan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs 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\26\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3724 powershell.exe 3724 powershell.exe 5092 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 5092 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 2736 powershell.exe 2736 powershell.exe 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 1100 powershell.exe 1100 powershell.exe 3076 powershell.exe 3076 powershell.exe 4468 powershell.exe 4468 powershell.exe 2120 powershell.exe 2120 powershell.exe 4936 powershell.exe 4936 powershell.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 388 csrss.exe 388 csrss.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 388 csrss.exe 388 csrss.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 388 csrss.exe 388 csrss.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe 4556 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3724 powershell.exe Token: SeDebugPrivilege 5092 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe Token: SeImpersonatePrivilege 5092 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe Token: SeDebugPrivilege 2736 powershell.exe Token: SeDebugPrivilege 1100 powershell.exe Token: SeDebugPrivilege 3076 powershell.exe Token: SeDebugPrivilege 4468 powershell.exe Token: SeDebugPrivilege 2120 powershell.exe Token: SeDebugPrivilege 4936 powershell.exe Token: SeSystemEnvironmentPrivilege 388 csrss.exe Token: SeSecurityPrivilege 4744 sc.exe Token: SeSecurityPrivilege 4744 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 5092 wrote to memory of 3724 5092 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 82 PID 5092 wrote to memory of 3724 5092 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 82 PID 5092 wrote to memory of 3724 5092 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 82 PID 1148 wrote to memory of 2736 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 90 PID 1148 wrote to memory of 2736 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 90 PID 1148 wrote to memory of 2736 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 90 PID 1148 wrote to memory of 3220 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 92 PID 1148 wrote to memory of 3220 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 92 PID 3220 wrote to memory of 1128 3220 cmd.exe 94 PID 3220 wrote to memory of 1128 3220 cmd.exe 94 PID 1148 wrote to memory of 1100 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 95 PID 1148 wrote to memory of 1100 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 95 PID 1148 wrote to memory of 1100 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 95 PID 1148 wrote to memory of 3076 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 97 PID 1148 wrote to memory of 3076 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 97 PID 1148 wrote to memory of 3076 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 97 PID 1148 wrote to memory of 388 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 99 PID 1148 wrote to memory of 388 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 99 PID 1148 wrote to memory of 388 1148 376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe 99 PID 388 wrote to memory of 4468 388 csrss.exe 100 PID 388 wrote to memory of 4468 388 csrss.exe 100 PID 388 wrote to memory of 4468 388 csrss.exe 100 PID 388 wrote to memory of 2120 388 csrss.exe 104 PID 388 wrote to memory of 2120 388 csrss.exe 104 PID 388 wrote to memory of 2120 388 csrss.exe 104 PID 388 wrote to memory of 4936 388 csrss.exe 108 PID 388 wrote to memory of 4936 388 csrss.exe 108 PID 388 wrote to memory of 4936 388 csrss.exe 108 PID 388 wrote to memory of 4556 388 csrss.exe 110 PID 388 wrote to memory of 4556 388 csrss.exe 110 PID 4580 wrote to memory of 1552 4580 windefender.exe 116 PID 4580 wrote to memory of 1552 4580 windefender.exe 116 PID 4580 wrote to memory of 1552 4580 windefender.exe 116 PID 1552 wrote to memory of 4744 1552 cmd.exe 117 PID 1552 wrote to memory of 4744 1552 cmd.exe 117 PID 1552 wrote to memory of 4744 1552 cmd.exe 117 -
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\376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe"C:\Users\Admin\AppData\Local\Temp\376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5092 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3724 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3724 -s 25443⤵
- Program crash
PID:2872
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C:\Users\Admin\AppData\Local\Temp\376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.exe"C:\Users\Admin\AppData\Local\Temp\376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f.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:1148 -
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:2736
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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:3220 -
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:1128
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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:1100
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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:3076
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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:388 -
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:4468
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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:3780
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3792
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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:2120
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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:4936
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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:4556
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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:4004
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4580 -
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:1552 -
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:4744
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3724 -ip 37241⤵PID:3940
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4792
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
MD52fd8eb294534b65c0b654b7e25ff7a2a
SHA1400267d0429ff79a70878a47df4b092369183d1f
SHA25688ede4d445c49d519728bc2dff80fee7bba568cd51fbd5b81275aa557c83b35e
SHA512f010fb5ae8b744493f8975bb3636fd7dbc61874034398d787fa0de70c28d6039dd1db6dca3ee87df48c8d1c4488409beddafb50dbfaf1f66369210f0d66083c0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bc7da0d8bdcad929481da73e64fb7a10
SHA1aadd79046c174b297bffeedb6c9ae0d6b183222c
SHA256adcdf57b3c409480e06e9c5246368bbd6b0f86fbc01df2015e4032cbadfda2e5
SHA5126870c0e6183ba997a54156f7811d6751578a452c50e88d991451512720d8fe340a475365eb5e9c5ec732e94e4afaeec7879a791ec18ea1af362dc8677d8de253
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e7d598f274dbcb365a3e045c7b38e545
SHA1009a0f3d89adde269ece9664336a1dfa9f03479d
SHA2569f0378b5173a8b260e1d3fab03097c0e7cbb6f87a392863dda0c70be9f4c0cd4
SHA512c47f9177f2b3c2b0361fc6ff66c3ad69c40bdacc4a1a34a0b7274081bb41d4b23c92307536c61c1f1c76d37816526d271d9d32b49599b5ef5e9990b421c0b921
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD562a0df55c38e845130a39bba2ba69117
SHA115a93b76bf00cfa70941cccfbaa2cb710d6ef282
SHA256256129ce8de08f3cbcf3ef00b2b9b50520cadf135d0da44a65b12a3e14eb21d4
SHA51272e0734db13871fc0405739e7bbe8267aba5b3e32bd87373ecd3c9ff5d78d2e27c07e1bed94b2f63895f8bacd60bf970a44d74f60191cd3a65976ad942650f1e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD595a42de7191d444c0489b74ea6ae8cbb
SHA1018614aa40cc012ec65a8765779a7224df978bde
SHA25654d5206949869dccc85dc601feda82931966b047bc8610c98ce716739dbf20b5
SHA512cba87bfb26273958dc3843a01b45192b35239b1e887b7ca7ab838054932aef0c007cfa821b7a8ca3168f3b69f5a3b44e322481db91729f5b1eb926c55b8c11b8
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Filesize
4.2MB
MD5f09db0054e54831218990914d5553426
SHA1f04ec8cc72f104d51464c102cfa2b1f6195cc5cd
SHA256376fa4cba77e6336f530e07d78549d1776944138c2736bf63e6f170f29b1f24f
SHA512144cd4343b3e363f549117f230db4a1f4dbc646a21bf99c0a9855b47f1942aaba5b49d743b681a3e351866b3740cd9a5e6e76ec1d02c1d9cd2cdee9912841fc0
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec