Analysis
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max time kernel
149s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
15-05-2024 15:14
Static task
static1
Behavioral task
behavioral1
Sample
cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe
Resource
win10v2004-20240426-en
General
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Target
cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe
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Size
4.1MB
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MD5
02cb382b7e40679cb1d7ae3d86d66531
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SHA1
e60e80017ad72a6f7f868e1ef7d7f9ac2cdd06bb
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SHA256
cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2
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SHA512
8f7dc00fc26a31ec39cb9aaca546941f2395d3ce76716761c8e222ee4c14d7accedfa03b88ef9157401a5bf9cd9ad188aa031b285dbd2080e62ddfb6d4ea6b74
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SSDEEP
98304:yoJ/zNpfNOjfVFQ/nccBDV6mYf0gdQtHi3wo8k3cC1G76/i1:ygrNPOj9FQvccBDkmyddxD3VFi1
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral1/memory/2112-2-0x0000000004C30000-0x000000000551B000-memory.dmp family_glupteba behavioral1/memory/2112-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2112-55-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/2112-57-0x0000000004C30000-0x000000000551B000-memory.dmp family_glupteba behavioral1/memory/2112-81-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1132-80-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/1132-138-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/1928-162-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/1928-221-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/1928-233-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/1928-237-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/1928-241-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/1928-245-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/1928-249-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/1928-253-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/1928-257-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/1928-261-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/1928-265-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4708 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1928 csrss.exe 3504 injector.exe 2268 windefender.exe 1456 windefender.exe -
resource yara_rule behavioral1/files/0x0008000000023482-225.dat upx behavioral1/memory/2268-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2268-230-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1456-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1456-235-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1456-243-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe Set value (str) \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\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.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File 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 -
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.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe File created C:\Windows\rss\csrss.exe cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.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.
pid Process 2976 sc.exe -
pid Process 4588 powershell.exe 224 powershell.exe 4468 powershell.exe 5012 powershell.exe 2892 powershell.exe 3384 powershell.exe 4776 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2196 schtasks.exe 820 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.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,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.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\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs 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\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-682 = "E. Australia Standard Time" windefender.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\@tzres.dll,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-571 = "China Daylight Time" windefender.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,-231 = "Hawaiian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.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\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\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\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-741 = "New Zealand 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,-402 = "Arabic Standard Time" cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3384 powershell.exe 3384 powershell.exe 2112 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 2112 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 4776 powershell.exe 4776 powershell.exe 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 4588 powershell.exe 4588 powershell.exe 224 powershell.exe 224 powershell.exe 4468 powershell.exe 4468 powershell.exe 5012 powershell.exe 5012 powershell.exe 2892 powershell.exe 2892 powershell.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 1928 csrss.exe 1928 csrss.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 1928 csrss.exe 1928 csrss.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 1928 csrss.exe 1928 csrss.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe 3504 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3384 powershell.exe Token: SeDebugPrivilege 2112 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe Token: SeImpersonatePrivilege 2112 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe Token: SeDebugPrivilege 4776 powershell.exe Token: SeDebugPrivilege 4588 powershell.exe Token: SeDebugPrivilege 224 powershell.exe Token: SeDebugPrivilege 4468 powershell.exe Token: SeDebugPrivilege 5012 powershell.exe Token: SeDebugPrivilege 2892 powershell.exe Token: SeSystemEnvironmentPrivilege 1928 csrss.exe Token: SeSecurityPrivilege 2976 sc.exe Token: SeSecurityPrivilege 2976 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2112 wrote to memory of 3384 2112 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 93 PID 2112 wrote to memory of 3384 2112 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 93 PID 2112 wrote to memory of 3384 2112 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 93 PID 1132 wrote to memory of 4776 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 97 PID 1132 wrote to memory of 4776 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 97 PID 1132 wrote to memory of 4776 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 97 PID 1132 wrote to memory of 4344 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 99 PID 1132 wrote to memory of 4344 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 99 PID 4344 wrote to memory of 4708 4344 cmd.exe 101 PID 4344 wrote to memory of 4708 4344 cmd.exe 101 PID 1132 wrote to memory of 4588 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 102 PID 1132 wrote to memory of 4588 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 102 PID 1132 wrote to memory of 4588 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 102 PID 1132 wrote to memory of 224 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 104 PID 1132 wrote to memory of 224 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 104 PID 1132 wrote to memory of 224 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 104 PID 1132 wrote to memory of 1928 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 107 PID 1132 wrote to memory of 1928 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 107 PID 1132 wrote to memory of 1928 1132 cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe 107 PID 1928 wrote to memory of 4468 1928 csrss.exe 109 PID 1928 wrote to memory of 4468 1928 csrss.exe 109 PID 1928 wrote to memory of 4468 1928 csrss.exe 109 PID 1928 wrote to memory of 5012 1928 csrss.exe 115 PID 1928 wrote to memory of 5012 1928 csrss.exe 115 PID 1928 wrote to memory of 5012 1928 csrss.exe 115 PID 1928 wrote to memory of 2892 1928 csrss.exe 117 PID 1928 wrote to memory of 2892 1928 csrss.exe 117 PID 1928 wrote to memory of 2892 1928 csrss.exe 117 PID 1928 wrote to memory of 3504 1928 csrss.exe 119 PID 1928 wrote to memory of 3504 1928 csrss.exe 119 PID 2268 wrote to memory of 3900 2268 windefender.exe 125 PID 2268 wrote to memory of 3900 2268 windefender.exe 125 PID 2268 wrote to memory of 3900 2268 windefender.exe 125 PID 3900 wrote to memory of 2976 3900 cmd.exe 126 PID 3900 wrote to memory of 2976 3900 cmd.exe 126 PID 3900 wrote to memory of 2976 3900 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\cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe"C:\Users\Admin\AppData\Local\Temp\cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2112 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3384
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C:\Users\Admin\AppData\Local\Temp\cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.exe"C:\Users\Admin\AppData\Local\Temp\cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2.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:1132 -
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:4776
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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:4344 -
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:4708
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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:4588
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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:224
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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:1928 -
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:4468
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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:2196
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2076
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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:5012
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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:2892
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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:3504
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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:820
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2268 -
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:3900 -
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:2976
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1456
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ab8e2c85d4e6d47ec2d9956094dbf9b9
SHA1c8a214c05d8d21909efc3061385fdcce0cee2100
SHA256e3543ab0091cd7156b140ff9b2bc7530dadc698e4ea43e082732fc9545009f23
SHA5127fd2067ac0f6ed7d9759debe7bdba72815553dcddcdf7506224f59ec78f626b76ff3d50cad5ee603fe4f961e733b916c458e67a6f22cf0ec7308c787c513b583
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c44aa2601f5ff7990794918190c8a15e
SHA102b71eb9e31c86dd18e58002f45dc8ec78f0b4f4
SHA25663631e4df7447812c10000565d12561ccebc0f8d2b41ab50d242c97a0ef9e561
SHA5129ba61bd19d590892064fb92b3a827bc0ffe2362acf6deae02cad5159b69aaa10df37c6348a8c82a8468218e5a2dc226149418cac40c0f56d34966f5c50244b5b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5779eaf5d548a91e704c9faf1e20f4fc9
SHA106a153e17fc6922c1e361760234afd75dcb83864
SHA2560c6cf556361a28c21b7942558da38ab6019a72b2d902dc89212b01582a6c19e6
SHA5121cceceaf8b0f61e485ada2b345e8b064debdb514811898cb20fa0d5182aa19f31a1af6782ef81907f0940b285996de40b9ab730fa47a914b0504602ac5d27998
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5395cfcb00ac76ae2f81c73aca7fc3770
SHA141d39ae60d51da925cdcbddd85f056ce0b13ca57
SHA256790d779e1b1b7a4109b83545c5a041bf6cfb81de427559d2b4beffe96342fd03
SHA512d93eb3c0d8d989107ca4868343a8ca578166f6b4bd5c20705ff5460fc529be445067285d52587bfaa37abb0a01cacd4700529c7199f509241ae8dc8973a3d7fa
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51e8bede50c0e3e1b73019833db6bc8eb
SHA10af7467db0cfc6d4ff70d9b111d1681650dda2c4
SHA256ed3f67b7d1062f993d27147d3e4af4e0452468551c7cce649ca187fc73907e81
SHA512e3a062c596d80cf758dfbdfdf8a2c1b35be6ef9e316b48c48c237395008f4f0f4d4fe28c114739bf8a62f0d0f02811046b8e8e95e51867c64b4e3f09e40d6892
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Filesize
4.1MB
MD502cb382b7e40679cb1d7ae3d86d66531
SHA1e60e80017ad72a6f7f868e1ef7d7f9ac2cdd06bb
SHA256cfbf8d28d787d1cd7aed0ee0b9e447578aaf64447aa6bfb5a5ae1b0a968a86e2
SHA5128f7dc00fc26a31ec39cb9aaca546941f2395d3ce76716761c8e222ee4c14d7accedfa03b88ef9157401a5bf9cd9ad188aa031b285dbd2080e62ddfb6d4ea6b74
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec