Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
22-08-2024 01:33
Static task
static1
Behavioral task
behavioral1
Sample
5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe
Resource
win10v2004-20240802-en
General
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Target
5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe
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Size
4.1MB
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MD5
2857da9224b13fed53a8a164b68378c2
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SHA1
249f40f1880247a5195c2d05be4611f2dc3e59ef
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SHA256
5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d
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SHA512
0762a209bd2dd2dea9ab309b03fc54b1bc57dc39c3132d2cb77aea1ae8d36ebd733eae7470a41b8901c7d6333bafa14f11ee75d5f563ac08eb1a2a3a17aaa682
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SSDEEP
98304:wX9T5zY+neAgaWGUopMVtlg/ngaxdvvigMwWx:U9+TAmopMOgafvPTWx
Malware Config
Signatures
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Glupteba payload 20 IoCs
Processes:
resource yara_rule behavioral2/memory/5040-2-0x0000000003210000-0x0000000003AFB000-memory.dmp family_glupteba behavioral2/memory/5040-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/5040-43-0x0000000003210000-0x0000000003AFB000-memory.dmp family_glupteba behavioral2/memory/5040-47-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/5040-57-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3616-60-0x0000000002E20000-0x000000000370B000-memory.dmp family_glupteba behavioral2/memory/3616-122-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3616-140-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4432-216-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4432-223-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4432-225-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4432-227-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4432-229-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4432-231-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4432-233-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4432-235-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4432-237-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4432-239-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4432-241-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4432-243-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 2572 netsh.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid process 4432 csrss.exe 696 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File 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 -
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:
5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe -
Drops file in Windows directory 2 IoCs
Processes:
5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exedescription ioc process File opened for modification C:\Windows\rss 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe File created C:\Windows\rss\csrss.exe 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 4756 powershell.exe 4320 powershell.exe 5036 powershell.exe 3628 powershell.exe 4572 powershell.exe 1216 powershell.exe 4052 powershell.exe -
Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
Processes:
netsh.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe -
System Location Discovery: System Language Discovery 1 TTPs 10 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exepowershell.exe5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrss.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 4984 schtasks.exe 2384 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exepowershell.exe5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 5036 powershell.exe 5036 powershell.exe 5040 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe 5040 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe 3628 powershell.exe 3628 powershell.exe 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe 4572 powershell.exe 4572 powershell.exe 1216 powershell.exe 1216 powershell.exe 4052 powershell.exe 4052 powershell.exe 4756 powershell.exe 4756 powershell.exe 4320 powershell.exe 4320 powershell.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 4432 csrss.exe 4432 csrss.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 4432 csrss.exe 4432 csrss.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe 696 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
powershell.exe5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exedescription pid process Token: SeDebugPrivilege 5036 powershell.exe Token: SeDebugPrivilege 5040 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Token: SeImpersonatePrivilege 5040 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe Token: SeDebugPrivilege 3628 powershell.exe Token: SeDebugPrivilege 4572 powershell.exe Token: SeDebugPrivilege 1216 powershell.exe Token: SeDebugPrivilege 4052 powershell.exe Token: SeDebugPrivilege 4756 powershell.exe Token: SeDebugPrivilege 4320 powershell.exe Token: SeSystemEnvironmentPrivilege 4432 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.execmd.execsrss.exedescription pid process target process PID 5040 wrote to memory of 5036 5040 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe powershell.exe PID 5040 wrote to memory of 5036 5040 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe powershell.exe PID 5040 wrote to memory of 5036 5040 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe powershell.exe PID 3616 wrote to memory of 3628 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe powershell.exe PID 3616 wrote to memory of 3628 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe powershell.exe PID 3616 wrote to memory of 3628 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe powershell.exe PID 3616 wrote to memory of 2632 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe cmd.exe PID 3616 wrote to memory of 2632 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe cmd.exe PID 2632 wrote to memory of 2572 2632 cmd.exe netsh.exe PID 2632 wrote to memory of 2572 2632 cmd.exe netsh.exe PID 3616 wrote to memory of 4572 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe powershell.exe PID 3616 wrote to memory of 4572 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe powershell.exe PID 3616 wrote to memory of 4572 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe powershell.exe PID 3616 wrote to memory of 1216 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe powershell.exe PID 3616 wrote to memory of 1216 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe powershell.exe PID 3616 wrote to memory of 1216 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe powershell.exe PID 3616 wrote to memory of 4432 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe csrss.exe PID 3616 wrote to memory of 4432 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe csrss.exe PID 3616 wrote to memory of 4432 3616 5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe csrss.exe PID 4432 wrote to memory of 4052 4432 csrss.exe powershell.exe PID 4432 wrote to memory of 4052 4432 csrss.exe powershell.exe PID 4432 wrote to memory of 4052 4432 csrss.exe powershell.exe PID 4432 wrote to memory of 4756 4432 csrss.exe powershell.exe PID 4432 wrote to memory of 4756 4432 csrss.exe powershell.exe PID 4432 wrote to memory of 4756 4432 csrss.exe powershell.exe PID 4432 wrote to memory of 4320 4432 csrss.exe powershell.exe PID 4432 wrote to memory of 4320 4432 csrss.exe powershell.exe PID 4432 wrote to memory of 4320 4432 csrss.exe powershell.exe PID 4432 wrote to memory of 696 4432 csrss.exe injector.exe PID 4432 wrote to memory of 696 4432 csrss.exe injector.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\5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe"C:\Users\Admin\AppData\Local\Temp\5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5040 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5036
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C:\Users\Admin\AppData\Local\Temp\5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe"C:\Users\Admin\AppData\Local\Temp\5edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d.exe"2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3616 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3628
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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:2632 -
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
- Event Triggered Execution: Netsh Helper DLL
PID:2572
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4572
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1216
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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.
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4432 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4052
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Scheduled Task/Job: Scheduled Task
PID:2384
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1656
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4756
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4320
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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:696
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Scheduled Task/Job: Scheduled Task
PID:4984
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a5bf35672faad092bc2e0105326db412
SHA186d4ad4c307fa3730b41e787f969ec94a8e308d3
SHA256169f64cd0a0de5489a4ac14e44636a9fda510bd01d7bb09c36ec3d8c92a40f80
SHA512221ad46c784f93f2757c927237a0d209b1e78bcfb4a22dcd3951c834ecb0223982fff7d97bfd42d5d44f9ae193eb0ee86b8f6634ffd8943ea496182374c0d4a7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f3b47bf3b2078ceaca9a5adac99c7e0f
SHA1c6500c93c2ff4d8ed507db79e067529a1a672ff9
SHA256b3abe732e8552ed5e926744dd1014fdb2d292be8618406382c256dfdc8a4760e
SHA512a5e75a0ebffeba03d1ec538b15edc1adfdc264583b954b7b8bee90c69dd208574cae3e43c7717f9f52c9cd17fcde63f09cd1fa0b9765037713f1f25da2dabc64
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a500b92c52270b49af7823827eb6d756
SHA11aaec6ca5a2dfce5464eac70ad7198096382d239
SHA25601f78d782f12a228c1a99e213cd226f4d4332f0716167fae45dce75c7fcfb41b
SHA512074c40e3831838a4d746cbd426d06dca7c4182207529d8a11ecea09c16abf92f98673356a7b60191a925f2254eef2c760a0f5a0a8d58f7e5bd4d6ce396852fee
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD523b82b7ce6f0f4999b4a88843d2ad0ed
SHA1e4b0f33460c35ca35d954a58d0aa2055dff0a0d2
SHA25608b0d94f71384bf4ae9816dcc17a4f2b332129a1d89885f8869c928af0281196
SHA5128a03d30574e085ccb80bdcd3ca2aaa976dd3cd193a8fcb65c50f01bd8b9a41100f69c804108698de40ec52994244ecf32b649b3e51a3ba78729cf63b439e2e8f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59f62a8888966c69272f65ff9a7f107fd
SHA11837a05b7eddbe337819cd8350138e2b0792c8db
SHA2562cdbc294fb66bb829e58883a53ea2654de835fa643a8112c8c3fe2aef5eeb74f
SHA5120db991081463f065081831597d4aac33c012c70722b6f0472c2b36ac6db175ded6990e46060429bcc0cb9f6c6d309ac9c4acc65aafc239099975e0b64efa065c
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Filesize
4.1MB
MD52857da9224b13fed53a8a164b68378c2
SHA1249f40f1880247a5195c2d05be4611f2dc3e59ef
SHA2565edd03b5ddbf162a0e63c16d7d579433d11f34e199fcbdcb7fbeb581ff3af86d
SHA5120762a209bd2dd2dea9ab309b03fc54b1bc57dc39c3132d2cb77aea1ae8d36ebd733eae7470a41b8901c7d6333bafa14f11ee75d5f563ac08eb1a2a3a17aaa682