Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-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 17 IoCs
Processes:
resource yara_rule behavioral1/memory/2000-2-0x0000000002D30000-0x000000000361B000-memory.dmp family_glupteba behavioral1/memory/2000-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2000-78-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2000-81-0x0000000002D30000-0x000000000361B000-memory.dmp family_glupteba behavioral1/memory/4040-133-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4340-214-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4340-225-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4340-227-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4340-230-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4340-235-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4340-237-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4340-242-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4340-247-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4340-249-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4340-252-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4340-254-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4340-257-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 336 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 4340 csrss.exe 1152 injector.exe 1384 windefender.exe 3268 windefender.exe -
Processes:
resource yara_rule behavioral1/files/0x0009000000023447-218.dat upx behavioral1/memory/1384-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3268-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1384-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3268-228-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3268-233-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3268-243-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
csrss.exee8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.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:
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 4528 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 3644 powershell.exe 4552 powershell.exe 3352 powershell.exe 4272 powershell.exe 3260 powershell.exe 2944 powershell.exe 812 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 4352 schtasks.exe 5040 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exewindefender.exee8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.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\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-261 = "GMT Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-372 = "Jerusalem Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo 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\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.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\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\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.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\2a\52C64B7E\@tzres.dll,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-364 = "Middle East Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2631 = "Norfolk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\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\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2751 = "Tomsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@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,-361 = "GTB Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exee8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exepowershell.exee8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4552 powershell.exe 4552 powershell.exe 2000 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 2000 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 3352 powershell.exe 3352 powershell.exe 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 4272 powershell.exe 4272 powershell.exe 3260 powershell.exe 3260 powershell.exe 2944 powershell.exe 2944 powershell.exe 812 powershell.exe 812 powershell.exe 3644 powershell.exe 3644 powershell.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 4340 csrss.exe 4340 csrss.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 4340 csrss.exe 4340 csrss.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 4340 csrss.exe 4340 csrss.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe 1152 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exee8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4552 powershell.exe Token: SeDebugPrivilege 2000 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Token: SeImpersonatePrivilege 2000 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe Token: SeDebugPrivilege 3352 powershell.exe Token: SeDebugPrivilege 4272 powershell.exe Token: SeDebugPrivilege 3260 powershell.exe Token: SeDebugPrivilege 2944 powershell.exe Token: SeDebugPrivilege 812 powershell.exe Token: SeDebugPrivilege 3644 powershell.exe Token: SeSystemEnvironmentPrivilege 4340 csrss.exe Token: SeSecurityPrivilege 4528 sc.exe Token: SeSecurityPrivilege 4528 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exee8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 2000 wrote to memory of 4552 2000 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 87 PID 2000 wrote to memory of 4552 2000 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 87 PID 2000 wrote to memory of 4552 2000 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 87 PID 4040 wrote to memory of 3352 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 95 PID 4040 wrote to memory of 3352 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 95 PID 4040 wrote to memory of 3352 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 95 PID 4040 wrote to memory of 1300 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 99 PID 4040 wrote to memory of 1300 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 99 PID 1300 wrote to memory of 336 1300 cmd.exe 101 PID 1300 wrote to memory of 336 1300 cmd.exe 101 PID 4040 wrote to memory of 4272 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 102 PID 4040 wrote to memory of 4272 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 102 PID 4040 wrote to memory of 4272 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 102 PID 4040 wrote to memory of 3260 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 104 PID 4040 wrote to memory of 3260 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 104 PID 4040 wrote to memory of 3260 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 104 PID 4040 wrote to memory of 4340 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 106 PID 4040 wrote to memory of 4340 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 106 PID 4040 wrote to memory of 4340 4040 e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9.exe 106 PID 4340 wrote to memory of 2944 4340 csrss.exe 107 PID 4340 wrote to memory of 2944 4340 csrss.exe 107 PID 4340 wrote to memory of 2944 4340 csrss.exe 107 PID 4340 wrote to memory of 812 4340 csrss.exe 113 PID 4340 wrote to memory of 812 4340 csrss.exe 113 PID 4340 wrote to memory of 812 4340 csrss.exe 113 PID 4340 wrote to memory of 3644 4340 csrss.exe 115 PID 4340 wrote to memory of 3644 4340 csrss.exe 115 PID 4340 wrote to memory of 3644 4340 csrss.exe 115 PID 4340 wrote to memory of 1152 4340 csrss.exe 117 PID 4340 wrote to memory of 1152 4340 csrss.exe 117 PID 1384 wrote to memory of 4652 1384 windefender.exe 125 PID 1384 wrote to memory of 4652 1384 windefender.exe 125 PID 1384 wrote to memory of 4652 1384 windefender.exe 125 PID 4652 wrote to memory of 4528 4652 cmd.exe 126 PID 4652 wrote to memory of 4528 4652 cmd.exe 126 PID 4652 wrote to memory of 4528 4652 cmd.exe 126 -
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:2000 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4552
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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:4040 -
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:3352
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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:1300 -
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:336
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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:4272
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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:3260
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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:4340 -
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:2944
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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:4352
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1588
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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:812
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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:3644
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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:1152
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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:5040
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1384 -
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:4652 -
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:4528
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3268
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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD547d58704b0586b9c4d33daa594bd2234
SHA141b8ae8e2c2fe1d33b530e974e63cd87cae376b8
SHA2560dd0ce1565df8f56a8a7d60c9eaae8b77f5443a777a03ddbe92c521b97e941a6
SHA512cbd2335e743b6fa3b1554aea0aa315f64da5fc7aeafdb619e897c34d6416e6e84638ee5c6deb21b38d0b4db5f1b2dbd111bc00841c7527a9872160b140b7e217
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5081cf907d193ddda82e3bef5da1a0bb8
SHA175a244f9cb01f4ba76d7e2450a55ea573829121f
SHA2565fa18907b2cb930ecfb144ed2c6ecef3b3e9e2cc148ff89cbcf67777fb00ea42
SHA512bc2b7dccaa2e526d9c6453e62eb040d37b6ca0648a38c156cc29c914c54646a5ef635853b2827fd014fe3226710562495defa78e56b06f85027e3aefb2bcf99a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56827fb1b8b7c4de379cd7e68b7db4b7d
SHA1bd5435bc0d95b2bdf08df79532805b7bbed28026
SHA256fcbd413ccde2d45f1f6d509550e4209897058c72cde86caace976c5f1824cc22
SHA51283d96109ad6a7e2f9059e68c209b578612fa73dfb84451854de3db8c5992b128a9e1f297313b89afd329840eda208d98beaf30cdc9cdc2d36a3a23fc1b2156b6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5884719afff298095380427948fd841a0
SHA13bd2e5a00cb2ec67e66a549c47fbefbfa5a627f9
SHA256aeb44f1e866ca23117830993923c8a825f31e51479edce81a76e0a0244bc4f05
SHA512d0905ebb9f56282418a18c104401ce1d58b0b1e069675cd1b18f87f824e14aa913d8a6d488172814619feebaa91c97e64a44b6005ac79406dc636d51070072cb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD512b0571a9489e3b766dd533298f8dc6d
SHA1a911aed41f540a19596312331df0beda1aef9450
SHA25674e2f1ce139a18ee54a4a4640ca22794cb30a77b0315f3386bcab9198ce7cba6
SHA51262fb126ed3b32b1229eff5cd5ce1ef62c63d3cc869bd89233336c93a9eddf688654439bcf049a1302aa27a4042d5413ea83ef263276871ebda4d9bbe9d913e95
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Filesize
4.1MB
MD5557786f50428dfeef92d382c0344fb1d
SHA184e2fd21c1d1afe28c20550bdf8a2d8a1996a3f3
SHA256e8b38fdf6934947bb7cb83fcf109263cae3bd843841b0c1aef4e95d4e378b3f9
SHA512f8503b28202515e48602e815b7c80fe9bbc60ca41cc95c140b11271547b98915dbf5b9a96988af3c53d4211acd8a014234ef931795043cfc9e0242e10fab434c
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec