Analysis
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max time kernel
150s -
max time network
132s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
16-05-2024 10:20
Static task
static1
Behavioral task
behavioral1
Sample
4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe
Resource
win10v2004-20240508-en
General
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Target
4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe
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Size
4.1MB
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MD5
609fbcae43f2905439a1ed85955018ba
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SHA1
803e7df2eef1ac2dd78fbc0aef061a5637dae590
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SHA256
4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1
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SHA512
dab4dabb6c0aeef5e502a14588990a461ba3281171522a32c38b9ee938446a965ba8917e8d17065c2c2ed99a54fa01aaa433638bb83b8f71e70c970d9b272ac5
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SSDEEP
98304:dBH5QtHgtXZGwxAeX68LG3wNCsYjHyiS0gsLIyJOWEFSdaDQG3a9ntJ:dBZQtHgtXlxHq4G3ixkyiJTOnSQDy9n7
Malware Config
Signatures
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Glupteba payload 17 IoCs
Processes:
resource yara_rule behavioral2/memory/1388-2-0x0000000002E90000-0x000000000377B000-memory.dmp family_glupteba behavioral2/memory/1388-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1388-75-0x0000000002E90000-0x000000000377B000-memory.dmp family_glupteba behavioral2/memory/1388-90-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3520-125-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2520-199-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2520-210-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2520-212-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2520-215-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2520-219-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2520-222-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2520-224-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2520-231-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2520-234-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2520-236-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2520-239-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2520-243-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 4552 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 2520 csrss.exe 3048 injector.exe 2148 windefender.exe 2364 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002a9e9-203.dat upx behavioral2/memory/2148-204-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2148-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2364-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2364-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2364-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\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\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.
Processes:
4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe -
Drops file in Windows directory 4 IoCs
Processes:
4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe File created C:\Windows\rss\csrss.exe 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid Process 4208 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 3616 powershell.exe 1492 powershell.exe 712 powershell.exe 2132 powershell.exe 244 powershell.exe 4740 powershell.exe 3008 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 3144 schtasks.exe 2880 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.exe4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2452 = "Saint Pierre Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.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,-2162 = "Altai Standard Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.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\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.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\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\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\SmartCardRoot\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,-661 = "Cen. Australia Daylight Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.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\@tzres.dll,-261 = "GMT Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2872 = "Magallanes Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2591 = "Tocantins Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.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\@tzres.dll,-221 = "Alaskan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-632 = "Tokyo Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs 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\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exepowershell.exe4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 1492 powershell.exe 1492 powershell.exe 1388 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 1388 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 712 powershell.exe 712 powershell.exe 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 2132 powershell.exe 2132 powershell.exe 244 powershell.exe 244 powershell.exe 4740 powershell.exe 4740 powershell.exe 3008 powershell.exe 3008 powershell.exe 3616 powershell.exe 3616 powershell.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 2520 csrss.exe 2520 csrss.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 2520 csrss.exe 2520 csrss.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 2520 csrss.exe 2520 csrss.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe 3048 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 1492 powershell.exe Token: SeDebugPrivilege 1388 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe Token: SeImpersonatePrivilege 1388 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe Token: SeDebugPrivilege 712 powershell.exe Token: SeDebugPrivilege 2132 powershell.exe Token: SeDebugPrivilege 244 powershell.exe Token: SeDebugPrivilege 4740 powershell.exe Token: SeDebugPrivilege 3008 powershell.exe Token: SeDebugPrivilege 3616 powershell.exe Token: SeSystemEnvironmentPrivilege 2520 csrss.exe Token: SeSecurityPrivilege 4208 sc.exe Token: SeSecurityPrivilege 4208 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 1388 wrote to memory of 1492 1388 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 82 PID 1388 wrote to memory of 1492 1388 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 82 PID 1388 wrote to memory of 1492 1388 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 82 PID 3520 wrote to memory of 712 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 87 PID 3520 wrote to memory of 712 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 87 PID 3520 wrote to memory of 712 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 87 PID 3520 wrote to memory of 3680 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 89 PID 3520 wrote to memory of 3680 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 89 PID 3680 wrote to memory of 4552 3680 cmd.exe 91 PID 3680 wrote to memory of 4552 3680 cmd.exe 91 PID 3520 wrote to memory of 2132 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 92 PID 3520 wrote to memory of 2132 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 92 PID 3520 wrote to memory of 2132 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 92 PID 3520 wrote to memory of 244 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 94 PID 3520 wrote to memory of 244 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 94 PID 3520 wrote to memory of 244 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 94 PID 3520 wrote to memory of 2520 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 96 PID 3520 wrote to memory of 2520 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 96 PID 3520 wrote to memory of 2520 3520 4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe 96 PID 2520 wrote to memory of 4740 2520 csrss.exe 97 PID 2520 wrote to memory of 4740 2520 csrss.exe 97 PID 2520 wrote to memory of 4740 2520 csrss.exe 97 PID 2520 wrote to memory of 3008 2520 csrss.exe 102 PID 2520 wrote to memory of 3008 2520 csrss.exe 102 PID 2520 wrote to memory of 3008 2520 csrss.exe 102 PID 2520 wrote to memory of 3616 2520 csrss.exe 105 PID 2520 wrote to memory of 3616 2520 csrss.exe 105 PID 2520 wrote to memory of 3616 2520 csrss.exe 105 PID 2520 wrote to memory of 3048 2520 csrss.exe 107 PID 2520 wrote to memory of 3048 2520 csrss.exe 107 PID 2148 wrote to memory of 884 2148 windefender.exe 113 PID 2148 wrote to memory of 884 2148 windefender.exe 113 PID 2148 wrote to memory of 884 2148 windefender.exe 113 PID 884 wrote to memory of 4208 884 cmd.exe 114 PID 884 wrote to memory of 4208 884 cmd.exe 114 PID 884 wrote to memory of 4208 884 cmd.exe 114 -
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\4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe"C:\Users\Admin\AppData\Local\Temp\4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1388 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1492
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C:\Users\Admin\AppData\Local\Temp\4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.exe"C:\Users\Admin\AppData\Local\Temp\4c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1.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:3520 -
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:712
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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:3680 -
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:4552
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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:2132
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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:244
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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:2520 -
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:4740
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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:3144
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4888
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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:3008
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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:3616
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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:3048
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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:2880
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2148 -
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:884 -
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:4208
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2364
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
MD5cf3e9bcff5da7ca23ee3c3bf4f680b06
SHA1662e3f8a27cc6d064415af9f7c2f679d53479ce6
SHA25636303a3b79c50a68c75f03cd84202e623e6cd5bbb9dc2779e7add7b03eef111f
SHA512a16d7be19721410b73bc245c2febae3ae309c5998075913d7f1520e94195220ecfafc852c8c9b24407458b44ffc447b7638e0bf293c766b7f08f56e0be2bd19c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50818c5739aecbb84d8f05a2945036142
SHA180811940cb82d9c014f65c30c086f4fa1e16f1ea
SHA25655ff7f3068b93ccd9311b3140db6dcad8879a5ded3df11ee8e3ce0daad4cc9a3
SHA5120a30a240874ea177b4fe9002e22657d53b3f8896b24c09318ec06de5f75e0fba6edc59371dfbb38d44d69478f864b8a8edae90ebd0fa73e936d009ed57afa68f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f86ed8935940ef0c370e7b8b73bf5079
SHA15677f1785d2a59f6ff1ebaf17b0aeb117233c9a8
SHA256a63bea5998eef4e1ca714f07598d8fe41918bbf4c8f488a36bbc1f6a2eddfe70
SHA5128314170c37f73c9a612fb9a0492c2c61db858f095ce70933ba36ac360315352f6029a9560ca74dafc06017a9ac3ad292f0037dee5ca275925cbabdad0e8cc67a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56e69047aa173184123a8b1f057835df3
SHA1480ed58437b2820a2f3d7f9564a79c199cda8b5c
SHA25603df88ba64fa7bd13d628d62a43e62156dc5b1228afc011ea595e537479f74b1
SHA512e46745d9853d9ea5a08f053bb611f70749e62db4492fa8bfc5595784c69b6ca6859087094c10717f3f6f3c696535bf7ec93879b057ee6057db9794cfb3e2275b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD584012cc598c5065a163e93efb3c85087
SHA185dcaecbc29f2fa4b1e671015570c02caee990e5
SHA2562483fccf7dd553a713ba65ba04431468483bc69287a96576bbb330d0292a055c
SHA51253c3364515657dcb2234daaf31eb14f954aadda932591bd0e0e1b383aca1b00e174360709f240980aa7732bc6f9a15836d0d844284e5ba662d3c78838fb2d60d
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Filesize
4.1MB
MD5609fbcae43f2905439a1ed85955018ba
SHA1803e7df2eef1ac2dd78fbc0aef061a5637dae590
SHA2564c5247759d4e4d4c312887bd79fc5fef793d912e63381719ac15d7c6e6c7d1a1
SHA512dab4dabb6c0aeef5e502a14588990a461ba3281171522a32c38b9ee938446a965ba8917e8d17065c2c2ed99a54fa01aaa433638bb83b8f71e70c970d9b272ac5
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec