Analysis
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max time kernel
149s -
max time network
150s -
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
81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe
Resource
win10v2004-20240426-en
General
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Target
81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe
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Size
4.1MB
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MD5
cb6a29e08314289f9331972b48abf960
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SHA1
44fab7c4febffeed8f0a677fbfed75f0fa941db2
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SHA256
81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e
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SHA512
06ccc47678e0a177ef0a395113327420c8f9638a07682913d9d9835ab1acccd3c4e2d51515d3441e3bf4d75f6f38e2a8f2435026ebb7dd53cc929998fca8a7c2
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SSDEEP
98304:Wk/C6baF9NNXYvR+SQPyohxfWe3/GY9pAEj6j:Wn6bazjovoyoHfX3/GYHk
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/564-2-0x00000000044B0000-0x0000000004D9B000-memory.dmp family_glupteba behavioral2/memory/564-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/564-54-0x00000000044B0000-0x0000000004D9B000-memory.dmp family_glupteba behavioral2/memory/564-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/564-51-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3584-125-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/892-204-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/892-214-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/892-215-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/892-217-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/892-220-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/892-222-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/892-223-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/892-226-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/892-228-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/892-230-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/892-231-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/892-234-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/892-236-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 1584 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 892 csrss.exe 1556 injector.exe 4856 windefender.exe 4640 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000300000002aa87-207.dat upx behavioral2/memory/4856-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4640-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4856-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4640-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4640-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
csrss.exe81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.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:
81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe -
Drops file in Windows directory 4 IoCs
Processes:
81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe File created C:\Windows\rss\csrss.exe 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.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 4944 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 352 powershell.exe 4076 powershell.exe 4724 powershell.exe 2076 powershell.exe 4628 powershell.exe 3000 powershell.exe 2064 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 1048 schtasks.exe 1816 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exewindefender.exe81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\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\@tzres.dll,-11 = "Azores Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-622 = "Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs 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\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.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,-31 = "Mid-Atlantic Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates 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\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe 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,-461 = "Afghanistan Daylight Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.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\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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\UNCAsIntranet = "1" 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,-722 = "Central Pacific Standard Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-272 = "Greenwich Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exepowershell.exe81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4076 powershell.exe 4076 powershell.exe 564 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 564 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 4724 powershell.exe 4724 powershell.exe 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 2076 powershell.exe 2076 powershell.exe 4628 powershell.exe 4628 powershell.exe 3000 powershell.exe 3000 powershell.exe 2064 powershell.exe 2064 powershell.exe 352 powershell.exe 352 powershell.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 892 csrss.exe 892 csrss.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 892 csrss.exe 892 csrss.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 892 csrss.exe 892 csrss.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe 1556 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4076 powershell.exe Token: SeDebugPrivilege 564 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Token: SeImpersonatePrivilege 564 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe Token: SeDebugPrivilege 4724 powershell.exe Token: SeDebugPrivilege 2076 powershell.exe Token: SeDebugPrivilege 4628 powershell.exe Token: SeDebugPrivilege 3000 powershell.exe Token: SeDebugPrivilege 2064 powershell.exe Token: SeDebugPrivilege 352 powershell.exe Token: SeSystemEnvironmentPrivilege 892 csrss.exe Token: SeSecurityPrivilege 4944 sc.exe Token: SeSecurityPrivilege 4944 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 564 wrote to memory of 4076 564 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 82 PID 564 wrote to memory of 4076 564 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 82 PID 564 wrote to memory of 4076 564 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 82 PID 3584 wrote to memory of 4724 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 87 PID 3584 wrote to memory of 4724 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 87 PID 3584 wrote to memory of 4724 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 87 PID 3584 wrote to memory of 4716 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 89 PID 3584 wrote to memory of 4716 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 89 PID 4716 wrote to memory of 1584 4716 cmd.exe 91 PID 4716 wrote to memory of 1584 4716 cmd.exe 91 PID 3584 wrote to memory of 2076 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 92 PID 3584 wrote to memory of 2076 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 92 PID 3584 wrote to memory of 2076 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 92 PID 3584 wrote to memory of 4628 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 94 PID 3584 wrote to memory of 4628 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 94 PID 3584 wrote to memory of 4628 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 94 PID 3584 wrote to memory of 892 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 96 PID 3584 wrote to memory of 892 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 96 PID 3584 wrote to memory of 892 3584 81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe 96 PID 892 wrote to memory of 3000 892 csrss.exe 97 PID 892 wrote to memory of 3000 892 csrss.exe 97 PID 892 wrote to memory of 3000 892 csrss.exe 97 PID 892 wrote to memory of 2064 892 csrss.exe 103 PID 892 wrote to memory of 2064 892 csrss.exe 103 PID 892 wrote to memory of 2064 892 csrss.exe 103 PID 892 wrote to memory of 352 892 csrss.exe 105 PID 892 wrote to memory of 352 892 csrss.exe 105 PID 892 wrote to memory of 352 892 csrss.exe 105 PID 892 wrote to memory of 1556 892 csrss.exe 107 PID 892 wrote to memory of 1556 892 csrss.exe 107 PID 4856 wrote to memory of 3836 4856 windefender.exe 114 PID 4856 wrote to memory of 3836 4856 windefender.exe 114 PID 4856 wrote to memory of 3836 4856 windefender.exe 114 PID 3836 wrote to memory of 4944 3836 cmd.exe 115 PID 3836 wrote to memory of 4944 3836 cmd.exe 115 PID 3836 wrote to memory of 4944 3836 cmd.exe 115 -
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\81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe"C:\Users\Admin\AppData\Local\Temp\81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:564 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4076
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C:\Users\Admin\AppData\Local\Temp\81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.exe"C:\Users\Admin\AppData\Local\Temp\81ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e.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:3584 -
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:4724
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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:4716 -
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:1584
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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:2076
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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:4628
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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:892 -
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:3000
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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:1048
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2284
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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:2064
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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:352
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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:1556
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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:1816
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4856 -
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:3836 -
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:4944
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4640
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
MD5ac11f47f49bb7943f8574ae80f956505
SHA1b5c256fbd6d3a23446ffecfe4d37e3b6bb7a1d1e
SHA256c40581b921a8a5152399beb6314eae64ce03fc7176233ebae57af060f23a2b43
SHA512982962b0b6b1bb19a9fc40a8eb34f460bee24ada2667086b0235463aff0736287060dcc2e5fd81e484ad6418f51bc66a8aadb8c51a10eb01cf82fc3f410b6f7e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f872ca65dd468377658f149a7a1faf8a
SHA1d3c7a7b13c02993c9e3c6d666b51c3d9491fcaed
SHA256bbd0e7e4c0e2b0e054158a1c32f56c2925ac80a44950ca77b699d15caec4b65c
SHA512dfd4605cf1e3920b2625f5d1be5bd16820c9c9600249abc68860d9dd014415544538c3a0292f20a093aed9adefe13ad826ad9231038ecf5c70321bbc03cd6146
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d71bcb68ad861a004f005e36a17010fc
SHA1f5ed13b9b177128ba0a93b52ada45f8d0541225d
SHA2566ebae420668dd358ca38e878dba00f61c5debd762cdf11ef19b2d559d31bd89a
SHA512646c9d91b8a0a1911f4790ebf65f9fb2042d24ce0d2c74300afb22357ffc68eda5ad459442752917cef1e36c1c9032c34ee8c829baf9ae53dbcde2ff97a96e6a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5464bf294ca101c262077c9f7956b2b58
SHA1299e44b80e3144d1b54605dde5adbecc44cdb68b
SHA25662769f75c3abee6b5ccccb4df7b42e7a3ebaa1a87bf46b382e7b50e3c6142286
SHA51247f7f148f6ccff8f780908b44d97bc1c9b7ef6214d57fe97726744c5d7b2d5e099d009c96010d327141d973c77289f9f1ca411ea3faf098da4aa53342764fcbe
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD546d1b29195542639581f2cb3a23bb4dd
SHA1d620148ce9945863e0de2f5227569a70d4551fc1
SHA25659cd3176dfc09af59a5ed923ed5b7786f48550919f7e435c8037f63de577be7c
SHA512dafd6715efd898340afa69d9eee6b84509de023453f55b8b75449a044844e0f3679b9a98da935b2cf17bd88951260c81271daed65e038eb561570a56a624f506
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Filesize
4.1MB
MD5cb6a29e08314289f9331972b48abf960
SHA144fab7c4febffeed8f0a677fbfed75f0fa941db2
SHA25681ea76eb362accf3cf44a9320fecd2e8c473c6b3b6ff570bc938ff663012fb4e
SHA51206ccc47678e0a177ef0a395113327420c8f9638a07682913d9d9835ab1acccd3c4e2d51515d3441e3bf4d75f6f38e2a8f2435026ebb7dd53cc929998fca8a7c2
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec