Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 11:35
Static task
static1
Behavioral task
behavioral1
Sample
3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe
Resource
win10v2004-20240426-en
General
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Target
3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe
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Size
4.1MB
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MD5
3de09c78f5f3f439ae088e7a0811a24d
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SHA1
58e0a50a54ad4e7a16fdeeba1bf12158aa4dfc77
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SHA256
3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d
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SHA512
9e6314454cde365d2def585feb668314c87fbcb6d2e3d598fbfa91485f441fe35b3028c71736d10414b2b79bb4af8ff66e8c88418087fed0264dde34456c5f10
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SSDEEP
98304:+k/C6baF9NNXYvR+SQPyohxfWe3/GY9pAEj6U:+n6bazjovoyoHfX3/GYH/
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/3788-2-0x0000000004510000-0x0000000004DFB000-memory.dmp family_glupteba behavioral1/memory/3788-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3788-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3788-57-0x0000000004510000-0x0000000004DFB000-memory.dmp family_glupteba behavioral1/memory/3788-55-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/2772-137-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/516-220-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/516-221-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/516-222-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/516-223-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/516-224-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/516-225-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/516-226-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/516-227-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/516-228-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/516-229-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/516-230-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/516-231-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/516-232-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 4264 netsh.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid Process 516 csrss.exe 4748 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\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.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process 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 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.
Processes:
3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe -
Drops file in Windows directory 2 IoCs
Processes:
3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exedescription ioc Process File opened for modification C:\Windows\rss 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe File created C:\Windows\rss\csrss.exe 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4216 powershell.exe 5116 powershell.exe 2604 powershell.exe 4632 powershell.exe 3016 powershell.exe 2756 powershell.exe 1980 powershell.exe -
Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target Process procid_target 4792 3788 WerFault.exe 82 4296 2772 WerFault.exe 91 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid Process 1740 schtasks.exe 2892 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exe3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exepowershell.exepowershell.exepowershell.exedescription ioc Process 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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 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\TrustedPeople powershell.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.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 (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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exepowershell.exe3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4216 powershell.exe 4216 powershell.exe 3788 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 3788 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 5116 powershell.exe 5116 powershell.exe 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 2604 powershell.exe 2604 powershell.exe 4632 powershell.exe 4632 powershell.exe 3016 powershell.exe 3016 powershell.exe 2756 powershell.exe 2756 powershell.exe 1980 powershell.exe 1980 powershell.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 516 csrss.exe 516 csrss.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 516 csrss.exe 516 csrss.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe 4748 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
powershell.exe3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exedescription pid Process Token: SeDebugPrivilege 4216 powershell.exe Token: SeDebugPrivilege 3788 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Token: SeImpersonatePrivilege 3788 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Token: SeDebugPrivilege 5116 powershell.exe Token: SeDebugPrivilege 2604 powershell.exe Token: SeDebugPrivilege 4632 powershell.exe Token: SeDebugPrivilege 3016 powershell.exe Token: SeDebugPrivilege 2756 powershell.exe Token: SeDebugPrivilege 1980 powershell.exe Token: SeSystemEnvironmentPrivilege 516 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.execmd.execsrss.exedescription pid Process procid_target PID 3788 wrote to memory of 4216 3788 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 85 PID 3788 wrote to memory of 4216 3788 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 85 PID 3788 wrote to memory of 4216 3788 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 85 PID 2772 wrote to memory of 5116 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 95 PID 2772 wrote to memory of 5116 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 95 PID 2772 wrote to memory of 5116 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 95 PID 2772 wrote to memory of 212 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 97 PID 2772 wrote to memory of 212 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 97 PID 212 wrote to memory of 4264 212 cmd.exe 99 PID 212 wrote to memory of 4264 212 cmd.exe 99 PID 2772 wrote to memory of 2604 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 102 PID 2772 wrote to memory of 2604 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 102 PID 2772 wrote to memory of 2604 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 102 PID 2772 wrote to memory of 4632 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 105 PID 2772 wrote to memory of 4632 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 105 PID 2772 wrote to memory of 4632 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 105 PID 2772 wrote to memory of 516 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 107 PID 2772 wrote to memory of 516 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 107 PID 2772 wrote to memory of 516 2772 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 107 PID 516 wrote to memory of 3016 516 csrss.exe 110 PID 516 wrote to memory of 3016 516 csrss.exe 110 PID 516 wrote to memory of 3016 516 csrss.exe 110 PID 516 wrote to memory of 2756 516 csrss.exe 118 PID 516 wrote to memory of 2756 516 csrss.exe 118 PID 516 wrote to memory of 2756 516 csrss.exe 118 PID 516 wrote to memory of 1980 516 csrss.exe 120 PID 516 wrote to memory of 1980 516 csrss.exe 120 PID 516 wrote to memory of 1980 516 csrss.exe 120 PID 516 wrote to memory of 4748 516 csrss.exe 122 PID 516 wrote to memory of 4748 516 csrss.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\3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe"C:\Users\Admin\AppData\Local\Temp\3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3788 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4216
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C:\Users\Admin\AppData\Local\Temp\3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe"C:\Users\Admin\AppData\Local\Temp\3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.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:2772 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5116
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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:212 -
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:4264
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2604
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4632
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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.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:516 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3016
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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:1740
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4920
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2756
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1980
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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:4748
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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:2892
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2772 -s 8643⤵
- Program crash
PID:4296
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3788 -s 6362⤵
- Program crash
PID:4792
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3788 -ip 37881⤵PID:2336
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2772 -ip 27721⤵PID:5076
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57118109f11aa656de868d6614099e724
SHA11d1c4bf4afbe056075c1a2109e560a4942202a00
SHA256de84f41fe8561ac6475af32dbde24e45d64f1325c516ddeb7677ca7ad4ed1a23
SHA512977e7020855467ae3811def8c06febf5385e8b35d82b5473e59f178cdbe8f2cd36261cd3d6d5ab308905792467860fdb03fa3f2850a8e0404302a56a45c8aa6a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57edf907c31b63923555c30c1654b7e6d
SHA164b6328f4ac3b18178c010e37328fb45462665d5
SHA256ab2e53fb43df6ee3f4c246a0f17d772ecab6a16b6ec05d84074d590240d50a92
SHA5128e7c47f4cae11262178deea8a1f3a4c535ab1887af3c782b0eae764dcc36779369eda8d80845c904cfbd3f3fd7c0c3d79d391c9bf574dcbcc812e5bf4a75054c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d623d310a3c50f77f67329391b9819b5
SHA146ce7d7eea109bee77c356217463a7ded945f556
SHA2563d05a414f40a157f3846e113e34d7b13c0d6c9665752806f735ad334dee3675b
SHA5122b8e500f8ef7f35a2330e814f6303d1cabf498768150ab1304b5bd2b6a2a51b4debb0581203df9da120a985eb69237beb3d66ed4f4e1cba9989d181130226ccc
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f44b89af3aed57364cd614567712f12e
SHA1806d2507e6c4d885abfd279d860f28a6bc4bbde4
SHA2567d48771abd551752605b7d56b66b906ccd2ced2a962950964b1d4d28efbbb09c
SHA5126ec9f8fd0e4b57cda0e0c1879cbb9eb985c8c79d4bd1081befbeba45dcae5d5d8c0fbdfb53cf8c0d1c80bc18aa48c1dfd0d475fa6dc8950168282e0173ee9caf
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5df15252c65a409580ea9ad5ca710a591
SHA1fb3707167dcbf793ac36d4a5f01b84c024c1e5c4
SHA256732a0d929c2fa79f01268474349ee087d7a98c6d7cc431c81a7baf924bc6a61e
SHA512705ae67d678d939c1883afae823ab31cc872ac6005b5e0739cd436def381df9dad446c8526c202d7a6393f45bebfb6e9c5291322e53d7e8765272f8b0dea3060
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Filesize
4.1MB
MD53de09c78f5f3f439ae088e7a0811a24d
SHA158e0a50a54ad4e7a16fdeeba1bf12158aa4dfc77
SHA2563e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d
SHA5129e6314454cde365d2def585feb668314c87fbcb6d2e3d598fbfa91485f441fe35b3028c71736d10414b2b79bb4af8ff66e8c88418087fed0264dde34456c5f10