Analysis
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max time kernel
150s -
max time network
156s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
19/04/2024, 19:32
Static task
static1
Behavioral task
behavioral1
Sample
9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe
Resource
win10v2004-20240412-en
General
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Target
9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe
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Size
4.2MB
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MD5
9cc466c25987d9b6fb55e22f351f9608
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SHA1
71cc0a724fca10d32cb9b54b38acf2d6733e1133
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SHA256
9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389
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SHA512
6dd293f948f4678ed7e0a38c264f2e2ef768ef5b9c8f2f4b12625754549a6c93057c2f3a23b34a5d2c0a0a5f87f9eb1d0d752effb146499e5158397ae14dc6b6
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SSDEEP
98304:btwUIgr6Tu/hivXD0fl0IvZVjhgp1+mYFjvUcmYnimsjZaHeL:Jw6rquKXDtU1Y2GYniVjUH+
Malware Config
Signatures
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Glupteba payload 21 IoCs
resource yara_rule behavioral2/memory/1076-2-0x00000000041D0000-0x0000000004ABB000-memory.dmp family_glupteba behavioral2/memory/1076-3-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/2900-43-0x0000000004060000-0x000000000494B000-memory.dmp family_glupteba behavioral2/memory/2900-44-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/1076-46-0x00000000041D0000-0x0000000004ABB000-memory.dmp family_glupteba behavioral2/memory/1076-59-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/2900-124-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/2900-145-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/1900-239-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/1900-241-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/1900-251-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/1900-254-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/1900-257-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/1900-260-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/1900-263-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/1900-266-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/1900-269-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/1900-272-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/1900-275-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/1900-278-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/1900-281-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4660 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1900 csrss.exe 2528 injector.exe 4408 windefender.exe 4888 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a981-244.dat upx behavioral2/memory/4408-248-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4888-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4888-258-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\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 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 -
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 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe File created C:\Windows\rss\csrss.exe 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.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 2552 sc.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 764 1980 WerFault.exe 81 1440 2900 WerFault.exe 88 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2952 schtasks.exe 4208 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,-11 = "Azores Daylight Time" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight 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" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-572 = "China Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1662 = "Bahia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.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,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-571 = "China Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs 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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.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\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1892 = "Russia TZ 3 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1980 powershell.exe 1980 powershell.exe 1076 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 1076 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 3588 powershell.exe 3588 powershell.exe 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 1716 powershell.exe 1716 powershell.exe 2184 powershell.exe 2184 powershell.exe 1480 powershell.exe 1480 powershell.exe 5080 powershell.exe 5080 powershell.exe 768 powershell.exe 768 powershell.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 1900 csrss.exe 1900 csrss.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 1900 csrss.exe 1900 csrss.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 1900 csrss.exe 1900 csrss.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe 2528 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1980 powershell.exe Token: SeDebugPrivilege 1076 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Token: SeImpersonatePrivilege 1076 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe Token: SeDebugPrivilege 3588 powershell.exe Token: SeDebugPrivilege 1716 powershell.exe Token: SeDebugPrivilege 2184 powershell.exe Token: SeDebugPrivilege 1480 powershell.exe Token: SeDebugPrivilege 5080 powershell.exe Token: SeDebugPrivilege 768 powershell.exe Token: SeSystemEnvironmentPrivilege 1900 csrss.exe Token: SeSecurityPrivilege 2552 sc.exe Token: SeSecurityPrivilege 2552 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1076 wrote to memory of 1980 1076 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 81 PID 1076 wrote to memory of 1980 1076 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 81 PID 1076 wrote to memory of 1980 1076 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 81 PID 2900 wrote to memory of 3588 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 89 PID 2900 wrote to memory of 3588 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 89 PID 2900 wrote to memory of 3588 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 89 PID 2900 wrote to memory of 3944 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 91 PID 2900 wrote to memory of 3944 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 91 PID 3944 wrote to memory of 4660 3944 cmd.exe 93 PID 3944 wrote to memory of 4660 3944 cmd.exe 93 PID 2900 wrote to memory of 1716 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 94 PID 2900 wrote to memory of 1716 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 94 PID 2900 wrote to memory of 1716 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 94 PID 2900 wrote to memory of 2184 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 96 PID 2900 wrote to memory of 2184 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 96 PID 2900 wrote to memory of 2184 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 96 PID 2900 wrote to memory of 1900 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 98 PID 2900 wrote to memory of 1900 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 98 PID 2900 wrote to memory of 1900 2900 9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe 98 PID 1900 wrote to memory of 1480 1900 csrss.exe 101 PID 1900 wrote to memory of 1480 1900 csrss.exe 101 PID 1900 wrote to memory of 1480 1900 csrss.exe 101 PID 1900 wrote to memory of 5080 1900 csrss.exe 107 PID 1900 wrote to memory of 5080 1900 csrss.exe 107 PID 1900 wrote to memory of 5080 1900 csrss.exe 107 PID 1900 wrote to memory of 768 1900 csrss.exe 109 PID 1900 wrote to memory of 768 1900 csrss.exe 109 PID 1900 wrote to memory of 768 1900 csrss.exe 109 PID 1900 wrote to memory of 2528 1900 csrss.exe 111 PID 1900 wrote to memory of 2528 1900 csrss.exe 111 PID 4408 wrote to memory of 4300 4408 windefender.exe 117 PID 4408 wrote to memory of 4300 4408 windefender.exe 117 PID 4408 wrote to memory of 4300 4408 windefender.exe 117 PID 4300 wrote to memory of 2552 4300 cmd.exe 118 PID 4300 wrote to memory of 2552 4300 cmd.exe 118 PID 4300 wrote to memory of 2552 4300 cmd.exe 118 -
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\9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe"C:\Users\Admin\AppData\Local\Temp\9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1076 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1980 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1980 -s 19123⤵
- Program crash
PID:764
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C:\Users\Admin\AppData\Local\Temp\9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.exe"C:\Users\Admin\AppData\Local\Temp\9f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389.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:2900 -
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:3588
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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:3944 -
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:4660
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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:1716
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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:2184
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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:1900 -
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:1480
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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:2952
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1056
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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:5080
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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:768
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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:2528
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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:4208
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4408 -
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:4300 -
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:2552
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2900 -s 9123⤵
- Program crash
PID:1440
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1980 -ip 19801⤵PID:2576
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2900 -ip 29001⤵PID:3936
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4888
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
MD5c2f4310258fc77bda7d6ce1c0e5b82d9
SHA1fd91cf493ae9cd18dcfb50e4e50e706e280e2baa
SHA2566c53c24c7086404de5b33889bfb9225514e625c854347f976d29ceea61eeff99
SHA512043d08aac0413fc4ffb6fb2a298eaf0b14170371b1365528db402c9ce3434f47b4b59a3eece824da5330fdb4aca516d7580754987437231298474252256eca57
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50172e4fab78775263e6ae7e5620a354f
SHA11a3ad01b9f7ce62af8cd1aebff8b6cc047d3781b
SHA25660585391e46a49e28b1ec0f640a6555d09c4fd3541f1482888a979ccd1cd8997
SHA512c184c9c5eb50ecc2d79de647a773501363fa5bf68f60513f0bcfab76291d21a984cf8dd66fe9add427ca693c65884fe57ca560d7983f8359a411bd3a73c11dec
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bef7c12b2ac9a752a7cc6f6ed0d45f8c
SHA1bafe18d8599e4ae304bb294b000e92c538ac1e4f
SHA2563e820c0db60379d22aae3f988c7f0d62ba9ee5a68c10b300ffe88b7760ef6004
SHA51270423569d3e8ac8c2f3deb685bebd0a240c60fe845199aa51145728c6f02ec925e3cf0e97ead8b57535671d2c9654688a826e41fcd98aeacc5613586d12c826f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53b0da809c6ebf4c628e7724b5929bc38
SHA10c300f4808013f7e13726a9d17c778b680218899
SHA2562e9db77c615832ff077d24429e703eaa41a496e1bb8bffa95e717dd52a9f14b2
SHA51247b54633fd7395850deb181d020b141179cf6a7ca99dfeefb4c182410b0c889cf909d456182d86fea76275864732e190e1492161e2eb72bae36f74f85ce55376
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55c86e6b8f59377d70cc9da81126c4389
SHA1cf829549d239b34acc1169290441a3b519a6d169
SHA25637c1aada1bffd570851a771665718b47399c5089ad4fd985e9248e6f2ed6647b
SHA512441bf9086cef07f81cbd46663d529893e1550fb70602416e1714dc376b4f9e263abc1dc931d247ca30c6a90142654fd2650eb7a3f07434aa202b02eb27a53b80
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Filesize
4.2MB
MD59cc466c25987d9b6fb55e22f351f9608
SHA171cc0a724fca10d32cb9b54b38acf2d6733e1133
SHA2569f5b8aa266cfe1d3cda895fa3710e77e90982e33370ef78f57d3b40e301af389
SHA5126dd293f948f4678ed7e0a38c264f2e2ef768ef5b9c8f2f4b12625754549a6c93057c2f3a23b34a5d2c0a0a5f87f9eb1d0d752effb146499e5158397ae14dc6b6
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec