Analysis
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max time kernel
149s -
max time network
136s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
20-05-2024 04:50
Static task
static1
Behavioral task
behavioral1
Sample
1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe
Resource
win10v2004-20240508-en
General
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Target
1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe
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Size
4.1MB
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MD5
d81fc6bd6feb7bce50df447445b23d7c
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SHA1
abe104368b516c72d49eb00114b1f7219baaba68
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SHA256
1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b
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SHA512
af89d0be4a704317150101519d9deda5efb66596f801dfb3722eecd36a08cb66732bd92104181ae44b9a562af87d0177b674903aa49ea7aaa9647e87dca63dab
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SSDEEP
98304:HquwTfmIkbquibhaubey8xw4weLmAcL8k4+6XNB3Rebmbqb0y:YLmIkbquibpii2yAk4+2fEKmbN
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/2036-2-0x0000000002E50000-0x000000000373B000-memory.dmp family_glupteba behavioral2/memory/2036-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2036-73-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2036-75-0x0000000002E50000-0x000000000373B000-memory.dmp family_glupteba behavioral2/memory/5072-121-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/5072-126-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3860-196-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3860-206-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3860-214-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3860-217-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3860-220-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3860-223-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3860-226-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3860-229-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3860-232-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3860-235-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3860-238-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3860-241-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2460 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 3860 csrss.exe 2864 injector.exe 4804 windefender.exe 4044 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x001a00000002ab2a-205.dat upx behavioral2/memory/4804-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4044-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4804-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4044-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4044-221-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe -
Drops file in Windows directory 4 IoCs
Processes:
1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe File created C:\Windows\rss\csrss.exe 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.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 2936 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4504 powershell.exe 3296 powershell.exe 4700 powershell.exe 4584 powershell.exe 3980 powershell.exe 3256 powershell.exe 2824 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 2344 schtasks.exe 4288 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exewindefender.exe1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-511 = "Central Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2632 = "Norfolk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs 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\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.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,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-962 = "Paraguay 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,-661 = "Cen. Australia Daylight Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Key created \REGISTRY\USER\.DEFAULT\Software\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\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-442 = "Arabian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.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,-2871 = "Magallanes Daylight Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-632 = "Tokyo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-672 = "AUS Eastern Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exepowershell.exe1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4504 powershell.exe 4504 powershell.exe 2036 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 2036 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 3296 powershell.exe 3296 powershell.exe 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 4700 powershell.exe 4700 powershell.exe 4584 powershell.exe 4584 powershell.exe 3980 powershell.exe 3980 powershell.exe 3256 powershell.exe 3256 powershell.exe 2824 powershell.exe 2824 powershell.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 3860 csrss.exe 3860 csrss.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 3860 csrss.exe 3860 csrss.exe 2864 injector.exe 2864 injector.exe 3860 csrss.exe 3860 csrss.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe 2864 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4504 powershell.exe Token: SeDebugPrivilege 2036 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Token: SeImpersonatePrivilege 2036 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe Token: SeDebugPrivilege 3296 powershell.exe Token: SeDebugPrivilege 4700 powershell.exe Token: SeDebugPrivilege 4584 powershell.exe Token: SeDebugPrivilege 3980 powershell.exe Token: SeDebugPrivilege 3256 powershell.exe Token: SeDebugPrivilege 2824 powershell.exe Token: SeSystemEnvironmentPrivilege 3860 csrss.exe Token: SeSecurityPrivilege 2936 sc.exe Token: SeSecurityPrivilege 2936 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 2036 wrote to memory of 4504 2036 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 82 PID 2036 wrote to memory of 4504 2036 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 82 PID 2036 wrote to memory of 4504 2036 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 82 PID 5072 wrote to memory of 3296 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 87 PID 5072 wrote to memory of 3296 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 87 PID 5072 wrote to memory of 3296 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 87 PID 5072 wrote to memory of 2556 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 89 PID 5072 wrote to memory of 2556 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 89 PID 2556 wrote to memory of 2460 2556 cmd.exe 91 PID 2556 wrote to memory of 2460 2556 cmd.exe 91 PID 5072 wrote to memory of 4700 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 92 PID 5072 wrote to memory of 4700 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 92 PID 5072 wrote to memory of 4700 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 92 PID 5072 wrote to memory of 4584 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 94 PID 5072 wrote to memory of 4584 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 94 PID 5072 wrote to memory of 4584 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 94 PID 5072 wrote to memory of 3860 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 96 PID 5072 wrote to memory of 3860 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 96 PID 5072 wrote to memory of 3860 5072 1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe 96 PID 3860 wrote to memory of 3980 3860 csrss.exe 97 PID 3860 wrote to memory of 3980 3860 csrss.exe 97 PID 3860 wrote to memory of 3980 3860 csrss.exe 97 PID 3860 wrote to memory of 3256 3860 csrss.exe 102 PID 3860 wrote to memory of 3256 3860 csrss.exe 102 PID 3860 wrote to memory of 3256 3860 csrss.exe 102 PID 3860 wrote to memory of 2824 3860 csrss.exe 105 PID 3860 wrote to memory of 2824 3860 csrss.exe 105 PID 3860 wrote to memory of 2824 3860 csrss.exe 105 PID 3860 wrote to memory of 2864 3860 csrss.exe 107 PID 3860 wrote to memory of 2864 3860 csrss.exe 107 PID 4804 wrote to memory of 4156 4804 windefender.exe 113 PID 4804 wrote to memory of 4156 4804 windefender.exe 113 PID 4804 wrote to memory of 4156 4804 windefender.exe 113 PID 4156 wrote to memory of 2936 4156 cmd.exe 114 PID 4156 wrote to memory of 2936 4156 cmd.exe 114 PID 4156 wrote to memory of 2936 4156 cmd.exe 114 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe"C:\Users\Admin\AppData\Local\Temp\1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2036 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4504
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C:\Users\Admin\AppData\Local\Temp\1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.exe"C:\Users\Admin\AppData\Local\Temp\1bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b.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:5072 -
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:3296
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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:2556 -
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:2460
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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:4700
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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:4584
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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:3860 -
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:3980
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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:2344
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3780
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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:3256
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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:2824
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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:2864
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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:4288
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4804 -
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:4156 -
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:2936
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4044
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54175365030712ad86ca0dff3f33b98e5
SHA1124711b06586ae92e4fc41834a2691e50ab43ab4
SHA256a6fd5d761b26ca3d244cfa6463f1dd0bac7d730e30ae5d5b6ff3a5f8de81c569
SHA51249385acb8e1640597d5afc64e8493b721e22588f1c7e8dfabf8ce0b863e1ad2a9863970abb2c4e6792189e3377e47498d980d3bbaa01a9b4237de8328359d819
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b27c80cb5f05d3dc2762f14782ef00af
SHA1ec5705ae94f14b15d5b9ca4f9c2cf9aa7bc795f1
SHA256fcd5bf419e94d0916efc159061909d63b4d1d3d9a72407e062c1068144a60d6e
SHA51203a704b843d25ed7453bd67b8693da551437c4f0b2ff9b3aff702fe48df851ce54658b8de7a4e9ca7e799b6036a742b8228afdf93f79e4000f674960eae0567f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fbf6114e7c902c70b278f6ca53d678b6
SHA1d20d374bc0324f60304f44cb4d3cc89248f67e91
SHA25645068d4d92778e20ffb6369679846c5f32fc080f381a50a6b45368e092a11c00
SHA512ab63001a01dd69cfcc81eec5b21f3b80ba3e5e667852c3802359c7831412304ccb4a2d3a3b2c0bf51ec8286e1d39667d8a509e5a14d8353d2a2ceee84ab71227
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5090ff6d550aaf05c255d0529f70f73da
SHA153419dc6d8746e744ac64b5dc7891dae77494059
SHA25689145b8875fa5a1f903cd911f7e2e22ee216f96bc7e7b65b84e71056e9686d29
SHA5128ad1b8da796aa8fd83f12102b99d29db3a01e6523a74684b77c1e0b63b2732e0b4c42fff162b1594163f234bed17e8186c61327f2bcf77b113243ca224905bfb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD586c3020696324c8c6862bc13271f0fe5
SHA17e57c07e7a929671270884007255afc9c7b9ea9e
SHA25691279e5fba78454e6b2ce62b715320c35c7bf48bfd507961fdd80e1e232dba18
SHA51233183b22be8c07e15440cd185234c84d8f5765c596fd15574f04e311e914c0a0edc41ca1b5464943d7adad39d35eaf595c909ba2953e2977648380c44a4f50d8
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Filesize
4.1MB
MD5d81fc6bd6feb7bce50df447445b23d7c
SHA1abe104368b516c72d49eb00114b1f7219baaba68
SHA2561bbba8693175c3d669631fb222c40c69729ff3f77d98782e4dbfe5d4e8c3dc9b
SHA512af89d0be4a704317150101519d9deda5efb66596f801dfb3722eecd36a08cb66732bd92104181ae44b9a562af87d0177b674903aa49ea7aaa9647e87dca63dab
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec