Analysis
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max time kernel
149s -
max time network
126s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
16-05-2024 09:46
Static task
static1
Behavioral task
behavioral1
Sample
e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe
Resource
win10v2004-20240426-en
General
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Target
e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe
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Size
4.1MB
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MD5
557786f50428dfeef92d382c0344fb1d
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SHA1
84e2fd21c1d1afe28c20550bdf8a2d8a1996a3f3
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SHA256
e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9
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SHA512
f8503b28202515e48602e815b7c80fe9bbc60ca41cc95c140b11271547b98915dbf5b9a96988af3c53d4211acd8a014234ef931795043cfc9e0242e10fab434c
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SSDEEP
98304:VH49zrfgobu9aDMWAg4dPDb/NQHvakIF/A8L3rqLZk5t2qZ3qL2LAZ5p:8r7OagDbOPW/F2k5tRZaLrv
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/1404-2-0x0000000002EA0000-0x000000000378B000-memory.dmp family_glupteba behavioral2/memory/1404-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1404-86-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1404-109-0x0000000002EA0000-0x000000000378B000-memory.dmp family_glupteba behavioral2/memory/3556-126-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2836-200-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2836-213-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2836-216-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2836-220-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2836-225-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2836-229-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2836-232-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2836-236-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2836-241-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2836-245-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2836-248-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2836-252-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2836-257-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 4424 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 2836 csrss.exe 900 injector.exe 3860 windefender.exe 3084 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002aa1d-205.dat upx behavioral2/memory/3860-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3084-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3860-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3084-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3084-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe -
Drops file in Windows directory 4 IoCs
Processes:
e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe File created C:\Windows\rss\csrss.exe e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.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 1120 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4580 powershell.exe 3752 powershell.exe 5032 powershell.exe 3128 powershell.exe 1196 powershell.exe 3264 powershell.exe 3004 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 4464 schtasks.exe 680 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exewindefender.exee8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.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,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3141 = "South Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-682 = "E. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.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\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed 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\@tzres.dll,-2772 = "Omsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.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\TrustedPeople\CTLs 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\2a\52C64B7E\@tzres.dll,-302 = "Romance Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-661 = "Cen. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exee8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exepowershell.exee8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4580 powershell.exe 4580 powershell.exe 1404 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 1404 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 3752 powershell.exe 3752 powershell.exe 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 5032 powershell.exe 5032 powershell.exe 3128 powershell.exe 3128 powershell.exe 1196 powershell.exe 1196 powershell.exe 3264 powershell.exe 3264 powershell.exe 3004 powershell.exe 3004 powershell.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 2836 csrss.exe 2836 csrss.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 2836 csrss.exe 2836 csrss.exe 900 injector.exe 900 injector.exe 2836 csrss.exe 2836 csrss.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exee8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4580 powershell.exe Token: SeDebugPrivilege 1404 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Token: SeImpersonatePrivilege 1404 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Token: SeDebugPrivilege 3752 powershell.exe Token: SeDebugPrivilege 5032 powershell.exe Token: SeDebugPrivilege 3128 powershell.exe Token: SeDebugPrivilege 1196 powershell.exe Token: SeDebugPrivilege 3264 powershell.exe Token: SeDebugPrivilege 3004 powershell.exe Token: SeSystemEnvironmentPrivilege 2836 csrss.exe Token: SeSecurityPrivilege 1120 sc.exe Token: SeSecurityPrivilege 1120 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exee8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 1404 wrote to memory of 4580 1404 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 82 PID 1404 wrote to memory of 4580 1404 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 82 PID 1404 wrote to memory of 4580 1404 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 82 PID 3556 wrote to memory of 3752 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 87 PID 3556 wrote to memory of 3752 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 87 PID 3556 wrote to memory of 3752 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 87 PID 3556 wrote to memory of 2408 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 89 PID 3556 wrote to memory of 2408 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 89 PID 2408 wrote to memory of 4424 2408 cmd.exe 91 PID 2408 wrote to memory of 4424 2408 cmd.exe 91 PID 3556 wrote to memory of 5032 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 92 PID 3556 wrote to memory of 5032 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 92 PID 3556 wrote to memory of 5032 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 92 PID 3556 wrote to memory of 3128 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 94 PID 3556 wrote to memory of 3128 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 94 PID 3556 wrote to memory of 3128 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 94 PID 3556 wrote to memory of 2836 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 96 PID 3556 wrote to memory of 2836 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 96 PID 3556 wrote to memory of 2836 3556 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 96 PID 2836 wrote to memory of 1196 2836 csrss.exe 97 PID 2836 wrote to memory of 1196 2836 csrss.exe 97 PID 2836 wrote to memory of 1196 2836 csrss.exe 97 PID 2836 wrote to memory of 3264 2836 csrss.exe 103 PID 2836 wrote to memory of 3264 2836 csrss.exe 103 PID 2836 wrote to memory of 3264 2836 csrss.exe 103 PID 2836 wrote to memory of 3004 2836 csrss.exe 105 PID 2836 wrote to memory of 3004 2836 csrss.exe 105 PID 2836 wrote to memory of 3004 2836 csrss.exe 105 PID 2836 wrote to memory of 900 2836 csrss.exe 107 PID 2836 wrote to memory of 900 2836 csrss.exe 107 PID 3860 wrote to memory of 4336 3860 windefender.exe 113 PID 3860 wrote to memory of 4336 3860 windefender.exe 113 PID 3860 wrote to memory of 4336 3860 windefender.exe 113 PID 4336 wrote to memory of 1120 4336 cmd.exe 114 PID 4336 wrote to memory of 1120 4336 cmd.exe 114 PID 4336 wrote to memory of 1120 4336 cmd.exe 114 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe"C:\Users\Admin\AppData\Local\Temp\e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1404 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4580
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C:\Users\Admin\AppData\Local\Temp\e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe"C:\Users\Admin\AppData\Local\Temp\e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.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:3556 -
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:3752
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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:2408 -
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:4424
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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:5032
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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:3128
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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:2836 -
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:1196
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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:4464
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4708
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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:3264
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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:3004
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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:900
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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:680
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3860 -
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:4336 -
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:1120
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3084
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
MD560a0d9e2f407f5eed8da27c056e586a4
SHA19e2a36ee81861923d41a3a246fcd800a719d8b6d
SHA256c7e43cec834d436a9630b5c70d3edfa8c94cbfe20459d2ad1f33bc3bb0b6db62
SHA512e06f3798142d2acb81d79d39012ab0ead9b0c01bc84664d9422ea7e5512497cc96737119070669ed8884249a814cf9936fcba833f173854e0925e2ab3d1ad441
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51a59948b14a46bc8b4e6e2c52cde0100
SHA143cb06bb7618d5c681f70cc86a89600d74bb5ca1
SHA256bd7d2117b61b8505f11c2d163c38bdd9a292e79aee303fe3046c512d1105a118
SHA512aa220cb4b2238834e09a68fc78b49b6a1a9293060aafa11a66bb5250352a12702892d48a26d9f17d595ef0bff1c2d4654d57a65f110b4821243fc17dc1567627
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD541aaa201d9aecf5dbfd155e76ebd3a98
SHA1771f022f402ce807ce1847c0d032d9f61e713bab
SHA256489152c7760be0e8ac268a428e14de6e78a94976779d9d0ba45e18e3391b2ee6
SHA51283ef811cfa261ed6039992d12efa25a94b1963380c2826201d0b073fa19c1a27e5295d8c2b22f8d65042b06fd394cfebad825503817de97fb535820e1beb1947
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5135b5def8bbe6a858841ebc9f3bd65d4
SHA13ba5694a187be13b1c3fe39b69a40be6443fcfe0
SHA256009981842b9f1c4219b63a649bf173b684aaca45b32ec05e635e7c0f362687cb
SHA512ca0702ce0de793f35c39ddc26d48a589a18d6a1305f87acabdc5cafcb354be748c28dab502838a2521e9ac32e5f87378034c0d6d7fea850415b7da8b51245437
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5dd897d8f158673762cf6eafb25a106e2
SHA1f7fbe09297d28897c9d95a80f25fe252c5ef23bb
SHA256ad29b6110f804a5d1a9bec92ff06b41484bca7a5ef57bca904159de17b977522
SHA512bddc4bad678e3c569f9387685225b722b5068c3e75453f41cd04383dc85f2eecb3f8d1bc2fa8b5fcbe9932e9ef4abb74f41b28a65ed2a0cd8c1b1a2ab8880ebc
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Filesize
4.1MB
MD5557786f50428dfeef92d382c0344fb1d
SHA184e2fd21c1d1afe28c20550bdf8a2d8a1996a3f3
SHA256e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9
SHA512f8503b28202515e48602e815b7c80fe9bbc60ca41cc95c140b11271547b98915dbf5b9a96988af3c53d4211acd8a014234ef931795043cfc9e0242e10fab434c
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec