Analysis
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max time kernel
149s -
max time network
128s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-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 behavioral2/memory/1360-2-0x0000000004600000-0x0000000004EEB000-memory.dmp family_glupteba behavioral2/memory/1360-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1360-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1360-54-0x0000000004600000-0x0000000004EEB000-memory.dmp family_glupteba behavioral2/memory/1360-51-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1600-123-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4860-198-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4860-204-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4860-205-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4860-206-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4860-207-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4860-208-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4860-209-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4860-210-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4860-211-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4860-212-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4860-213-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4860-214-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4860-215-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 3688 netsh.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid Process 4860 csrss.exe 1232 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\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 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 File created 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 1424 powershell.exe 4884 powershell.exe 1976 powershell.exe 2420 powershell.exe 1952 powershell.exe 3860 powershell.exe 3836 powershell.exe -
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 4984 schtasks.exe 3448 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exe3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.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,-2452 = "Saint Pierre 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\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.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,-542 = "Myanmar Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA 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,-2531 = "Chatham Islands Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard 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\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.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,-191 = "Mountain Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan 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\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.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,-2751 = "Tomsk Daylight Time" 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exepowershell.exe3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 1424 powershell.exe 1424 powershell.exe 1360 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 1360 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 4884 powershell.exe 4884 powershell.exe 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 1976 powershell.exe 1976 powershell.exe 2420 powershell.exe 2420 powershell.exe 1952 powershell.exe 1952 powershell.exe 3860 powershell.exe 3860 powershell.exe 3836 powershell.exe 3836 powershell.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 4860 csrss.exe 4860 csrss.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 4860 csrss.exe 4860 csrss.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe 1232 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
powershell.exe3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exedescription pid Process Token: SeDebugPrivilege 1424 powershell.exe Token: SeDebugPrivilege 1360 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Token: SeImpersonatePrivilege 1360 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe Token: SeDebugPrivilege 4884 powershell.exe Token: SeDebugPrivilege 1976 powershell.exe Token: SeDebugPrivilege 2420 powershell.exe Token: SeDebugPrivilege 1952 powershell.exe Token: SeDebugPrivilege 3860 powershell.exe Token: SeDebugPrivilege 3836 powershell.exe Token: SeSystemEnvironmentPrivilege 4860 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.execmd.execsrss.exedescription pid Process procid_target PID 1360 wrote to memory of 1424 1360 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 78 PID 1360 wrote to memory of 1424 1360 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 78 PID 1360 wrote to memory of 1424 1360 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 78 PID 1600 wrote to memory of 4884 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 83 PID 1600 wrote to memory of 4884 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 83 PID 1600 wrote to memory of 4884 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 83 PID 1600 wrote to memory of 2260 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 85 PID 1600 wrote to memory of 2260 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 85 PID 2260 wrote to memory of 3688 2260 cmd.exe 87 PID 2260 wrote to memory of 3688 2260 cmd.exe 87 PID 1600 wrote to memory of 1976 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 88 PID 1600 wrote to memory of 1976 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 88 PID 1600 wrote to memory of 1976 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 88 PID 1600 wrote to memory of 2420 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 90 PID 1600 wrote to memory of 2420 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 90 PID 1600 wrote to memory of 2420 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 90 PID 1600 wrote to memory of 4860 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 92 PID 1600 wrote to memory of 4860 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 92 PID 1600 wrote to memory of 4860 1600 3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe 92 PID 4860 wrote to memory of 1952 4860 csrss.exe 93 PID 4860 wrote to memory of 1952 4860 csrss.exe 93 PID 4860 wrote to memory of 1952 4860 csrss.exe 93 PID 4860 wrote to memory of 3860 4860 csrss.exe 99 PID 4860 wrote to memory of 3860 4860 csrss.exe 99 PID 4860 wrote to memory of 3860 4860 csrss.exe 99 PID 4860 wrote to memory of 3836 4860 csrss.exe 101 PID 4860 wrote to memory of 3836 4860 csrss.exe 101 PID 4860 wrote to memory of 3836 4860 csrss.exe 101 PID 4860 wrote to memory of 1232 4860 csrss.exe 103 PID 4860 wrote to memory of 1232 4860 csrss.exe 103 -
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:1360 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1424
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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:1600 -
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:4884
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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:2260 -
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:3688
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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:1976
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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:2420
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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:4860 -
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:1952
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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:4984
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1776
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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:3860
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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:3836
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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:1232
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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:3448
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57fb0d66da5976c03d1c95f071789e6cb
SHA1b155690a12a67b4e747154a06cf330a6e4d078b0
SHA2563202842a8b82f24fab784a7810b90716da1e2ae6287590d8115618c7ac8ad7fe
SHA5122cfa4ea76cd9c995d5484e92f0145e16da29a36a4d7961bbd125dd099002b5344adc39acabc292dbc4abf6e504e1d1e7aa5c4eb0a5bed1798223f9c8a0da2966
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57da4633a3a94ef53c65e6bb45bea5830
SHA10b5247862c7b434d2a7017640aad8b2281f87884
SHA256205ec0979567440f3bade6ca323d4499a0df454e533b80ab38267b4e768df1a3
SHA51281fa6e30387e69652bd84117ce8b6063db48903b22b90526384d9100c8d35409aa3f5e889c60c721c06e41aa607cab91e4dc2645e57fcfaf7820763f613927da
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52111f8b1e2a7f7ae1e8b9504c6a3f64d
SHA19219cb1f0e962b3205fcfcc1be235d844599e961
SHA2565de797435ba1b753c687fff1707654f460e2ff46e8f1dba69f28c6d9402f1a6b
SHA5122ff678670952db0d9c6938c6c51431148c0057be030b07c7e2a49597c9e676ed6fb74a2a0bbeaa051d640d7e594bf59a7576a761a73a6fb176fea4e902b373d1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5650f00baa6991678cd462c791b50d2fc
SHA168d767017d8859dcc419c426d4012bca433f4bb3
SHA2567593bdc9e68d53d8965cd3068a891ec58f4f1631d53daf17f9f3d071f514aa34
SHA512ccbb14779aac4a3a31c070ddd500363709a7bebc57c7c83a575aa89057571f95986c7f81215d9a4dcd842f48ad9c4197f354187243bfe0215d954b219967ee6a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55160080fa6b92756bbdf7ec66c059780
SHA105cfe08aa9cb08f0a15226957c76f77c2a9e00c6
SHA25608c09a586ff5d97d9bddfa32d70efd01e1c3ab1cf378ad1c7079b587651507f8
SHA5129fbf966055b42310f1253e6a67f7988d187ceca3d6e32ed8002e1c9c83c5b447784fe0e0a948d3d910696d236dd4805d429871120a3d73aabac680eccc085ab8
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Filesize
4.1MB
MD53de09c78f5f3f439ae088e7a0811a24d
SHA158e0a50a54ad4e7a16fdeeba1bf12158aa4dfc77
SHA2563e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d
SHA5129e6314454cde365d2def585feb668314c87fbcb6d2e3d598fbfa91485f441fe35b3028c71736d10414b2b79bb4af8ff66e8c88418087fed0264dde34456c5f10