Analysis
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max time kernel
150s -
max time network
153s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-04-2024 09:33
Static task
static1
Behavioral task
behavioral1
Sample
1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe
Resource
win10v2004-20240226-en
General
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Target
1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe
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Size
4.2MB
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MD5
2b79cc8cc1043e846fec6f9c55e9b8f3
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SHA1
f9512bf94642f3d26b631ad74ff57d3c35c10bdf
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SHA256
1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd
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SHA512
f475d367267d4f74b3ecf758c1b434ce60f54bb7d3fd74c8e14748161fbcad80d255fdf703ff7d7314b0a7fbb7b17c006eeae6596772d4b3df072fb0138f50b9
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SSDEEP
98304:NIBNXOOfwLGhP6KRoj027D5HGyNAiNcOh9MZ99WifgA28ff94ZO:Ujfa7j0YDNAHCC9Miz28ffp
Malware Config
Signatures
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Glupteba payload 22 IoCs
Processes:
resource yara_rule behavioral2/memory/3484-2-0x0000000005380000-0x0000000005C6B000-memory.dmp family_glupteba behavioral2/memory/3484-3-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3484-46-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4492-54-0x0000000005230000-0x0000000005B1B000-memory.dmp family_glupteba behavioral2/memory/3484-55-0x0000000005380000-0x0000000005C6B000-memory.dmp family_glupteba behavioral2/memory/4492-56-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3484-57-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4492-82-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4492-115-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4492-118-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4492-146-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4492-179-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3336-198-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3336-244-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3336-249-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3336-254-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3336-264-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3336-267-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3336-272-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3336-275-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3336-279-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3336-283-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3476 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 3336 csrss.exe 4392 injector.exe 2668 windefender.exe 2740 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/2668-261-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2740-274-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4041115548-3858121278-1660933110-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Set value (str) \REGISTRY\USER\S-1-5-21-4041115548-3858121278-1660933110-1000\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:
1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe -
Drops file in Windows directory 4 IoCs
Processes:
1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.execsrss.exedescription ioc process File opened for modification C:\Windows\rss 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe File created C:\Windows\rss\csrss.exe 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.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 3092 sc.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 4820 schtasks.exe 880 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exepowershell.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs 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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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\26\52C64B7E\@tzres.dll,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.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\26\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs 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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs 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\26\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs 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\26\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2411 = "Marquesas Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-721 = "Central Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-334 = "Jordan Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exepowershell.exe1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4860 powershell.exe 4860 powershell.exe 3484 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe 3484 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe 1076 powershell.exe 1076 powershell.exe 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe 4972 powershell.exe 4972 powershell.exe 3400 powershell.exe 3400 powershell.exe 2488 powershell.exe 2488 powershell.exe 760 powershell.exe 760 powershell.exe 4128 powershell.exe 4128 powershell.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 3336 csrss.exe 3336 csrss.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 3336 csrss.exe 3336 csrss.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe 4392 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 4860 powershell.exe Token: SeDebugPrivilege 3484 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Token: SeImpersonatePrivilege 3484 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe Token: SeDebugPrivilege 1076 powershell.exe Token: SeDebugPrivilege 4972 powershell.exe Token: SeDebugPrivilege 3400 powershell.exe Token: SeDebugPrivilege 2488 powershell.exe Token: SeDebugPrivilege 760 powershell.exe Token: SeDebugPrivilege 4128 powershell.exe Token: SeSystemEnvironmentPrivilege 3336 csrss.exe Token: SeSecurityPrivilege 3092 sc.exe Token: SeSecurityPrivilege 3092 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 3484 wrote to memory of 4860 3484 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe powershell.exe PID 3484 wrote to memory of 4860 3484 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe powershell.exe PID 3484 wrote to memory of 4860 3484 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe powershell.exe PID 4492 wrote to memory of 1076 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe powershell.exe PID 4492 wrote to memory of 1076 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe powershell.exe PID 4492 wrote to memory of 1076 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe powershell.exe PID 4492 wrote to memory of 1924 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe cmd.exe PID 4492 wrote to memory of 1924 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe cmd.exe PID 1924 wrote to memory of 3476 1924 cmd.exe netsh.exe PID 1924 wrote to memory of 3476 1924 cmd.exe netsh.exe PID 4492 wrote to memory of 4972 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe powershell.exe PID 4492 wrote to memory of 4972 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe powershell.exe PID 4492 wrote to memory of 4972 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe powershell.exe PID 4492 wrote to memory of 3400 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe powershell.exe PID 4492 wrote to memory of 3400 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe powershell.exe PID 4492 wrote to memory of 3400 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe powershell.exe PID 4492 wrote to memory of 3336 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe csrss.exe PID 4492 wrote to memory of 3336 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe csrss.exe PID 4492 wrote to memory of 3336 4492 1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe csrss.exe PID 3336 wrote to memory of 2488 3336 csrss.exe powershell.exe PID 3336 wrote to memory of 2488 3336 csrss.exe powershell.exe PID 3336 wrote to memory of 2488 3336 csrss.exe powershell.exe PID 3336 wrote to memory of 760 3336 csrss.exe powershell.exe PID 3336 wrote to memory of 760 3336 csrss.exe powershell.exe PID 3336 wrote to memory of 760 3336 csrss.exe powershell.exe PID 3336 wrote to memory of 4128 3336 csrss.exe powershell.exe PID 3336 wrote to memory of 4128 3336 csrss.exe powershell.exe PID 3336 wrote to memory of 4128 3336 csrss.exe powershell.exe PID 3336 wrote to memory of 4392 3336 csrss.exe injector.exe PID 3336 wrote to memory of 4392 3336 csrss.exe injector.exe PID 2668 wrote to memory of 1836 2668 windefender.exe cmd.exe PID 2668 wrote to memory of 1836 2668 windefender.exe cmd.exe PID 2668 wrote to memory of 1836 2668 windefender.exe cmd.exe PID 1836 wrote to memory of 3092 1836 cmd.exe sc.exe PID 1836 wrote to memory of 3092 1836 cmd.exe sc.exe PID 1836 wrote to memory of 3092 1836 cmd.exe sc.exe -
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\1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe"C:\Users\Admin\AppData\Local\Temp\1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3484 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4860
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C:\Users\Admin\AppData\Local\Temp\1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.exe"C:\Users\Admin\AppData\Local\Temp\1c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd.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:4492 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1076
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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:1924 -
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:3476
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4972
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3400
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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:3336 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2488
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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:4820
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4584
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:760
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4128
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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:4392
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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:880
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2668 -
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:1836 -
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:3092
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2740
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50ad2212de83df81e0c425d92408726f2
SHA1a1528102e9acfcf38ac29d5db0ccca6adae1f155
SHA256320118c2d01a1a862672745649cc16f8ccf44f69b35f39dd981f1dc6c98ca359
SHA5128df84ef6cfe32d00320f6d82f2705b574ca0ee5e13226852146d3df533af534bfd4764869def89f75d2219cee4a3e25903bff24e87b4bd3f7ca5abf4ccb1cfd6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ace4dd71feee4d09090e2ecf0d12ab54
SHA1cea43a1e16eee73dfd4f6b7e994efc27ef9a285b
SHA256ad2f6edd57443cf3da5d78dc66be60c15addfbe261e7c3433d1e4efd92b71c12
SHA512b0d01d371f96a2ec1673f30184a2e7a27f29b32717cee37f06c2be909263474c86fcca229ea9d7abd8016dbab7ac18313497d3c1b0e0bf05cc6b2994913e27a5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52a972e56493cd327c2cafe222a3cff11
SHA1178f92e351e183d13fef75e72964e33c807aed14
SHA25696a2a27636e2f06f0c1f55b3fddc62f9f4c6dc7f40d790ce43a0e8740888335c
SHA5122b5d1de20e652f29b769599d95e5898feeee26606ecdf8a7d569526730716bbe677abfd447d561baea9ad2a60976a04a5b30ce983a6cf1073c6f78e7e735f1d5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5938484964abba0e7bc19fda637a406cb
SHA15d50d1ce62dc5a64f4070451e703a6368811c5bf
SHA2566144136c4561e5b60f591b2996e3e9bef30d9aa45fab179068b5009d9803995a
SHA5129431187117c57a12911aab19b13a5e198a5bf61e5bef2c5fa0aa8877d02478d61aa12a0c367355455ca135b6f7ca659ef4f7a33866daee1a3523f46870de8961
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d4cd3eb344d8a982139b5f191599f72b
SHA134384700ca1bc079eb801b5ba015564855e8d9ca
SHA2562f9b629783a57dbbca68b24bb635951d320f73c97ef84a434395702e15e1e235
SHA512246a3f3210a6ea99601e1b013532bb46671a2de292ec6302edfc4cee0919530b0baacea63e263e5b199398a977e623010dbf03e0e8589420ca641957d5081173
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Filesize
4.2MB
MD52b79cc8cc1043e846fec6f9c55e9b8f3
SHA1f9512bf94642f3d26b631ad74ff57d3c35c10bdf
SHA2561c374a4912aecb61ea99db9b0c9b36010c6de304fecd6ee97ad169f2eb098dfd
SHA512f475d367267d4f74b3ecf758c1b434ce60f54bb7d3fd74c8e14748161fbcad80d255fdf703ff7d7314b0a7fbb7b17c006eeae6596772d4b3df072fb0138f50b9
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec