Analysis
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max time kernel
141s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
06-06-2023 14:48
Static task
static1
General
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Target
a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe
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Size
4.2MB
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MD5
cf34431cd2875715a721489433fabd1e
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SHA1
238970c3592449cfa29d39f57a870bec10e606fa
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SHA256
a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b
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SHA512
73a9bd9a2a61aede277d7236624ee635dc1901e2a461b9bb2dbd2e04d552ea6693c3caba39d094cb1c2cd128b4a5f845b7dc66d4750c737d603353fa09a7ca02
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SSDEEP
98304:KwPHzJGsSBKd2SXXNMk8lMY/ndSjzYudYViNA+e49:K+TDj6tfAjsuTVeM
Malware Config
Signatures
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Glupteba payload 15 IoCs
Processes:
resource yara_rule behavioral1/memory/3960-134-0x00000000051C0000-0x0000000005AAB000-memory.dmp family_glupteba behavioral1/memory/3960-171-0x0000000000400000-0x00000000030D0000-memory.dmp family_glupteba behavioral1/memory/3960-173-0x00000000051C0000-0x0000000005AAB000-memory.dmp family_glupteba behavioral1/memory/3960-180-0x0000000000400000-0x00000000030D0000-memory.dmp family_glupteba behavioral1/memory/1364-219-0x0000000000400000-0x00000000030D0000-memory.dmp family_glupteba behavioral1/memory/1364-266-0x0000000000400000-0x00000000030D0000-memory.dmp family_glupteba behavioral1/memory/4852-295-0x0000000000400000-0x00000000030D0000-memory.dmp family_glupteba behavioral1/memory/4852-347-0x0000000000400000-0x00000000030D0000-memory.dmp family_glupteba behavioral1/memory/4852-355-0x0000000000400000-0x00000000030D0000-memory.dmp family_glupteba behavioral1/memory/4852-364-0x0000000000400000-0x00000000030D0000-memory.dmp family_glupteba behavioral1/memory/4852-366-0x0000000000400000-0x00000000030D0000-memory.dmp family_glupteba behavioral1/memory/4852-368-0x0000000000400000-0x00000000030D0000-memory.dmp family_glupteba behavioral1/memory/4852-370-0x0000000000400000-0x00000000030D0000-memory.dmp family_glupteba behavioral1/memory/4852-372-0x0000000000400000-0x00000000030D0000-memory.dmp family_glupteba behavioral1/memory/4852-380-0x0000000000400000-0x00000000030D0000-memory.dmp family_glupteba -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Executes dropped EXE 5 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exef801950a962ddba14caaa44bf084b55c.exepid process 4852 csrss.exe 2176 injector.exe 3632 windefender.exe 392 windefender.exe 964 f801950a962ddba14caaa44bf084b55c.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx C:\Windows\windefender.exe upx behavioral1/memory/3632-360-0x0000000000400000-0x00000000008DF000-memory.dmp upx C:\Windows\windefender.exe upx behavioral1/memory/392-362-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3632-363-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/392-365-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/392-371-0x0000000000400000-0x00000000008DF000-memory.dmp upx C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe upx C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe upx behavioral1/memory/964-378-0x0000000000400000-0x0000000000C25000-memory.dmp upx behavioral1/memory/392-379-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/964-381-0x0000000000400000-0x0000000000C25000-memory.dmp upx behavioral1/memory/964-383-0x0000000000400000-0x0000000000C25000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Set value (str) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe -
Drops file in Windows directory 4 IoCs
Processes:
a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.execsrss.exedescription ioc process File opened for modification C:\Windows\rss a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe File created C:\Windows\rss\csrss.exe a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.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 2724 sc.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4104 1364 WerFault.exe a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.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 4816 schtasks.exe 4868 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-741 = "New Zealand Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.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\1e\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-501 = "Nepal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-2632 = "Norfolk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\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\1e\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-1802 = "Line Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-532 = "Sri Lanka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exea241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exepowershell.exea241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 768 powershell.exe 768 powershell.exe 3960 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe 3960 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe 3476 powershell.exe 3476 powershell.exe 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe 4520 powershell.exe 4520 powershell.exe 2096 powershell.exe 2096 powershell.exe 3424 powershell.exe 3424 powershell.exe 3200 powershell.exe 3200 powershell.exe 2140 powershell.exe 2140 powershell.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 4852 csrss.exe 4852 csrss.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 4852 csrss.exe 4852 csrss.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 4852 csrss.exe 4852 csrss.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe 2176 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exea241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 768 powershell.exe Token: SeDebugPrivilege 3960 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Token: SeImpersonatePrivilege 3960 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe Token: SeDebugPrivilege 3476 powershell.exe Token: SeDebugPrivilege 4520 powershell.exe Token: SeDebugPrivilege 2096 powershell.exe Token: SeDebugPrivilege 3424 powershell.exe Token: SeDebugPrivilege 3200 powershell.exe Token: SeDebugPrivilege 2140 powershell.exe Token: SeSystemEnvironmentPrivilege 4852 csrss.exe Token: SeSecurityPrivilege 2724 sc.exe Token: SeSecurityPrivilege 2724 sc.exe -
Suspicious use of WriteProcessMemory 39 IoCs
Processes:
a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exea241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 3960 wrote to memory of 768 3960 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe powershell.exe PID 3960 wrote to memory of 768 3960 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe powershell.exe PID 3960 wrote to memory of 768 3960 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe powershell.exe PID 1364 wrote to memory of 3476 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe powershell.exe PID 1364 wrote to memory of 3476 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe powershell.exe PID 1364 wrote to memory of 3476 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe powershell.exe PID 1364 wrote to memory of 3792 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe cmd.exe PID 1364 wrote to memory of 3792 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe cmd.exe PID 3792 wrote to memory of 1832 3792 cmd.exe netsh.exe PID 3792 wrote to memory of 1832 3792 cmd.exe netsh.exe PID 1364 wrote to memory of 4520 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe powershell.exe PID 1364 wrote to memory of 4520 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe powershell.exe PID 1364 wrote to memory of 4520 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe powershell.exe PID 1364 wrote to memory of 2096 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe powershell.exe PID 1364 wrote to memory of 2096 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe powershell.exe PID 1364 wrote to memory of 2096 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe powershell.exe PID 1364 wrote to memory of 4852 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe csrss.exe PID 1364 wrote to memory of 4852 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe csrss.exe PID 1364 wrote to memory of 4852 1364 a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe csrss.exe PID 4852 wrote to memory of 3424 4852 csrss.exe powershell.exe PID 4852 wrote to memory of 3424 4852 csrss.exe powershell.exe PID 4852 wrote to memory of 3424 4852 csrss.exe powershell.exe PID 4852 wrote to memory of 3200 4852 csrss.exe powershell.exe PID 4852 wrote to memory of 3200 4852 csrss.exe powershell.exe PID 4852 wrote to memory of 3200 4852 csrss.exe powershell.exe PID 4852 wrote to memory of 2140 4852 csrss.exe powershell.exe PID 4852 wrote to memory of 2140 4852 csrss.exe powershell.exe PID 4852 wrote to memory of 2140 4852 csrss.exe powershell.exe PID 4852 wrote to memory of 2176 4852 csrss.exe injector.exe PID 4852 wrote to memory of 2176 4852 csrss.exe injector.exe PID 3632 wrote to memory of 4072 3632 windefender.exe cmd.exe PID 3632 wrote to memory of 4072 3632 windefender.exe cmd.exe PID 3632 wrote to memory of 4072 3632 windefender.exe cmd.exe PID 4072 wrote to memory of 2724 4072 cmd.exe sc.exe PID 4072 wrote to memory of 2724 4072 cmd.exe sc.exe PID 4072 wrote to memory of 2724 4072 cmd.exe sc.exe PID 4852 wrote to memory of 964 4852 csrss.exe f801950a962ddba14caaa44bf084b55c.exe PID 4852 wrote to memory of 964 4852 csrss.exe f801950a962ddba14caaa44bf084b55c.exe PID 4852 wrote to memory of 964 4852 csrss.exe f801950a962ddba14caaa44bf084b55c.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\a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe"C:\Users\Admin\AppData\Local\Temp\a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3960 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:768
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C:\Users\Admin\AppData\Local\Temp\a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.exe"C:\Users\Admin\AppData\Local\Temp\a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b.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:1364 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3476
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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:3792 -
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:1832
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4520
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2096
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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:4852 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3424
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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:4816
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4896
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3200
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2140
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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:2176
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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:4868
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3632 -
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:4072 -
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:2724
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C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exeC:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe4⤵
- Executes dropped EXE
PID:964 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn "csrss" /f5⤵PID:380
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn "ScheduledUpdate" /f5⤵PID:2488
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1364 -s 7363⤵
- Program crash
PID:4104
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1364 -ip 13641⤵PID:2300
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:392
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
3.2MB
MD5f801950a962ddba14caaa44bf084b55c
SHA17cadc9076121297428442785536ba0df2d4ae996
SHA256c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f
SHA5124183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5
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Filesize
3.2MB
MD5f801950a962ddba14caaa44bf084b55c
SHA17cadc9076121297428442785536ba0df2d4ae996
SHA256c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f
SHA5124183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5
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Filesize
99KB
MD509031a062610d77d685c9934318b4170
SHA1880f744184e7774f3d14c1bb857e21cc7fe89a6d
SHA256778bd69af403df3c4e074c31b3850d71bf0e64524bea4272a802ca9520b379dd
SHA5129a276e1f0f55d35f2bf38eb093464f7065bdd30a660e6d1c62eed5e76d1fb2201567b89d9ae65d2d89dc99b142159e36fb73be8d5e08252a975d50544a7cda27
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b3261b43f51220e24e65ae4875373877
SHA189c0e86fb1bbe61cf1477c81a4eca2a84b39b5d8
SHA2566e84071352567031699035d2af14b9778cfafd892d2acdae744e045169f3d92f
SHA512853d2c7c13f569c81bc8faac75798e8b288e248a10ce77c82c24a9bed508989c184d738d00900645e9e6902e8d125bf1c70a827141de07373088c6e72497fc02
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD597cb2a4d3e9b0a53c99cba1e4260f53e
SHA122e63be8e6195161f8742fd973a4df9f8c709dff
SHA256eeb3a5527d117eb9ce747d770dcf3e9c5926cb7167ba7b4f3000549216c28c67
SHA5124837f7b14ad60d2f386d2f133535cf96f521b3dc37cf8d520ddafdcb3ac184bc6a9dec7a9cfd329475aaa28e65b61c5335200dda68420e872809ec995ef853b4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d1878a43b6bbc6f8eb51817b2cc0bf52
SHA1dc2c8f9321e1feb2db273f4fbe2fb4f9d03a00a5
SHA256e8f48c5127969b011e31c80f28a0f6703ecdf835f23b5dff8ccc3727a6bc5ce0
SHA5126f4ab619d9f0ea577a65ca14b8618ebd46d9640ac5e787da9af7f4ee178e83dcec832bdcb44035fde5079e798ddd905bf7fd6b74c89977f59b9defcf4c982a5e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fe14ae9bdff4f877e0e346a15bcbb4ee
SHA1d316651dae047848af64a37f5a56ed1895c80c82
SHA256eb21c23f1d32e8e2ad445c9db242c1fcb22b14bfd562008f635602f704bcfbdd
SHA5127309432cadeb20b8f480f0fc9100a8a44e62431c42caa61fd060409be00e5dcf2061a86249b36d4544b8a99f0000f744c0d262335b8cb5871ee41055f34a4486
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57dac045269e4df64c5b83a637722e123
SHA1f074388e7b2318c9349ef69ae69bad06433f1e55
SHA25631a3dd27b62eb7d887070a3782937cc8d5b5482cf660f35b4a2f7d7d7667d9d4
SHA512bac37aaf50b7abb8e2c21f50efe3608e53fc4ddae7c78f6cee3b4cc0beafecd66800fc49273a8511dafde92eb9fe61820f9309019e2b7e150c895116cee97de4
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Filesize
4.2MB
MD5cf34431cd2875715a721489433fabd1e
SHA1238970c3592449cfa29d39f57a870bec10e606fa
SHA256a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b
SHA51273a9bd9a2a61aede277d7236624ee635dc1901e2a461b9bb2dbd2e04d552ea6693c3caba39d094cb1c2cd128b4a5f845b7dc66d4750c737d603353fa09a7ca02
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Filesize
4.2MB
MD5cf34431cd2875715a721489433fabd1e
SHA1238970c3592449cfa29d39f57a870bec10e606fa
SHA256a241905c157079213f05bfc837f7c4c5f8b666a857d623c1d99153655f54e85b
SHA51273a9bd9a2a61aede277d7236624ee635dc1901e2a461b9bb2dbd2e04d552ea6693c3caba39d094cb1c2cd128b4a5f845b7dc66d4750c737d603353fa09a7ca02
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec