Analysis
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max time kernel
150s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
17/04/2024, 19:12
Static task
static1
Behavioral task
behavioral1
Sample
b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe
Resource
win10v2004-20240412-en
General
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Target
b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe
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Size
4.2MB
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MD5
61d02b87cb3d952fc8d9ca51a0b8e751
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SHA1
84a4a7bfb8f7e602caf373323026c3c5ffe6b8b3
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SHA256
b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c
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SHA512
cca8bde233d7de0f6f6326f52ef5ce1e1e8c16a0d5a17ff8f22ce5e31589ce5fe0e65d953c3ed2f285c6d80623df24d5b8c84483793ead6693a50e0728e5d483
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SSDEEP
98304:G+HT2dFOlkJa7jNZC2ePu9ILkthheCYlOaq:/zMKBrC2kuA8hntB
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral1/memory/4388-2-0x0000000005250000-0x0000000005B3B000-memory.dmp family_glupteba behavioral1/memory/4388-3-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/4324-56-0x00000000051A0000-0x0000000005A8B000-memory.dmp family_glupteba behavioral1/memory/4324-57-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/4388-84-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/3616-258-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/3616-268-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/3616-271-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/3616-274-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/3616-277-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/3616-280-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/3616-283-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/3616-286-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/3616-289-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/3616-292-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/3616-295-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/3616-298-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/3616-301-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 996 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3616 csrss.exe 3052 injector.exe 2028 windefender.exe 3596 windefender.exe -
resource yara_rule behavioral1/files/0x0008000000023450-262.dat upx behavioral1/memory/2028-265-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3596-269-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3596-275-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Set value (str) \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\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 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 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 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe File created C:\Windows\rss\csrss.exe b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe File created 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 4364 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 1956 schtasks.exe 3232 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-511 = "Central Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs 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\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-372 = "Jerusalem Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates 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,-42 = "E. South America Standard 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\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.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\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.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,-961 = "Paraguay Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.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,-121 = "SA Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs 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\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2452 = "Saint Pierre Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2892 = "Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4496 powershell.exe 4496 powershell.exe 4388 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 4388 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 4416 powershell.exe 4416 powershell.exe 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 2036 powershell.exe 2036 powershell.exe 1064 powershell.exe 1064 powershell.exe 440 powershell.exe 440 powershell.exe 1576 powershell.exe 1576 powershell.exe 3732 powershell.exe 3732 powershell.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3616 csrss.exe 3616 csrss.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3616 csrss.exe 3616 csrss.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3616 csrss.exe 3616 csrss.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4496 powershell.exe Token: SeDebugPrivilege 4388 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Token: SeImpersonatePrivilege 4388 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe Token: SeDebugPrivilege 4416 powershell.exe Token: SeDebugPrivilege 2036 powershell.exe Token: SeDebugPrivilege 1064 powershell.exe Token: SeDebugPrivilege 440 powershell.exe Token: SeDebugPrivilege 1576 powershell.exe Token: SeDebugPrivilege 3732 powershell.exe Token: SeSystemEnvironmentPrivilege 3616 csrss.exe Token: SeSecurityPrivilege 4364 sc.exe Token: SeSecurityPrivilege 4364 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4388 wrote to memory of 4496 4388 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 87 PID 4388 wrote to memory of 4496 4388 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 87 PID 4388 wrote to memory of 4496 4388 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 87 PID 4324 wrote to memory of 4416 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 112 PID 4324 wrote to memory of 4416 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 112 PID 4324 wrote to memory of 4416 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 112 PID 4324 wrote to memory of 2848 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 97 PID 4324 wrote to memory of 2848 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 97 PID 2848 wrote to memory of 996 2848 cmd.exe 99 PID 2848 wrote to memory of 996 2848 cmd.exe 99 PID 4324 wrote to memory of 2036 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 100 PID 4324 wrote to memory of 2036 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 100 PID 4324 wrote to memory of 2036 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 100 PID 4324 wrote to memory of 1064 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 102 PID 4324 wrote to memory of 1064 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 102 PID 4324 wrote to memory of 1064 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 102 PID 4324 wrote to memory of 3616 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 104 PID 4324 wrote to memory of 3616 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 104 PID 4324 wrote to memory of 3616 4324 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe 104 PID 3616 wrote to memory of 440 3616 csrss.exe 105 PID 3616 wrote to memory of 440 3616 csrss.exe 105 PID 3616 wrote to memory of 440 3616 csrss.exe 105 PID 3616 wrote to memory of 1576 3616 csrss.exe 111 PID 3616 wrote to memory of 1576 3616 csrss.exe 111 PID 3616 wrote to memory of 1576 3616 csrss.exe 111 PID 3616 wrote to memory of 3732 3616 csrss.exe 113 PID 3616 wrote to memory of 3732 3616 csrss.exe 113 PID 3616 wrote to memory of 3732 3616 csrss.exe 113 PID 3616 wrote to memory of 3052 3616 csrss.exe 115 PID 3616 wrote to memory of 3052 3616 csrss.exe 115 PID 2028 wrote to memory of 4408 2028 windefender.exe 121 PID 2028 wrote to memory of 4408 2028 windefender.exe 121 PID 2028 wrote to memory of 4408 2028 windefender.exe 121 PID 4408 wrote to memory of 4364 4408 cmd.exe 122 PID 4408 wrote to memory of 4364 4408 cmd.exe 122 PID 4408 wrote to memory of 4364 4408 cmd.exe 122 -
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\b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe"C:\Users\Admin\AppData\Local\Temp\b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4388 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4496
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C:\Users\Admin\AppData\Local\Temp\b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe"C:\Users\Admin\AppData\Local\Temp\b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.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:4324 -
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:4416
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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:2848 -
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:996
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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:2036
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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:1064
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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:3616 -
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:440
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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:1956
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4260
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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:1576 -
C:\Windows\System32\Conhost.exe\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV15⤵PID:4416
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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:3732
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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:3052
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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:3232
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2028 -
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:4408 -
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:4364
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3596
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57995f895236f64e0b32cca834259a4f0
SHA1bbc64c556fb6ba9a2068dd29abc195eec8d502b9
SHA25683427cbb175e24923eff5ef5c5a600d096df757b7e7a3d627627381acbd12479
SHA5127d3aa9c8aa604dd09a836370041ad66af3763ce754a45699403b2e8db7eb7a65fa8b09e70abb1e60e551b1caf336600f28d1a634f99ce28bdcc8afadf4d8aaa1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50a09ddfe2085f510214d199eba1c0a29
SHA113ba7922e0d7463d02aaecf8750f88b35cb1abdf
SHA2568a73cc717c65d9fd31e5147960991b7361c2ec4dd5e10bf8bcb47acd29ac8724
SHA5125670ad11e743cc2d3cf7cffdb096c76365b4424e74d2f7790682f72a578dadd4c8b57e78b9ba3d06b49d74577bd3ce6232f52277e7933ab2ea6d38036d2c0e7d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD540a91476495fcf9c4c4a8dd83450abe3
SHA128b47cf43610c0879711ceaecfc1bfe9a6505211
SHA256b9d7aaa0cb5a0271ecf791b3cf48f25b55e88ac89095e0ecac03d8f19f752689
SHA5128e9932c21524653c2c4997a38ef5e868f9e5b14b286147dc9658d669f3948bce802b769e48a4abe3fc02c9ee7804d6ff05e1c2cd28ffb8b160ea80376894856c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5785fd17e407d8c72d93f8ae60b381816
SHA11b0ba35bf3b3480587e581a69026c922daa51558
SHA2560c90231502a5f3cac2f250fcf920954ce53b884dabd0e0689a634cef67709272
SHA5128d10523109c913c6ef7938364c5258a70b1281a0bc61303b25266bf445a59ec185a1a4451593822dfb32651459daf5d0b3228be4151235d4e389cd798b53140d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5498df184a7d706048dd2f346ca5c6a88
SHA14ff67fa7c288791b00933bc6ac408c3ad43f42b8
SHA256b6db5fd30a181a7cb444d7683edbe2c6ac447f56ea3ee9e3ed0b4bde8cd02a12
SHA51209b53cb4ddd81dcee9869e029cd5f7d181a9088433bf4089cfa6bf10976f18d655d854933babbd703baaa912c7ae394b907e77a21f3d87496198ee8b5f001e11
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Filesize
4.2MB
MD561d02b87cb3d952fc8d9ca51a0b8e751
SHA184a4a7bfb8f7e602caf373323026c3c5ffe6b8b3
SHA256b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c
SHA512cca8bde233d7de0f6f6326f52ef5ce1e1e8c16a0d5a17ff8f22ce5e31589ce5fe0e65d953c3ed2f285c6d80623df24d5b8c84483793ead6693a50e0728e5d483
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec