Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 14:00
Static task
static1
Behavioral task
behavioral1
Sample
1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe
Resource
win10v2004-20240426-en
General
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Target
1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe
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Size
4.1MB
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MD5
8555b896248f47f8b2643d82d7cb17a9
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SHA1
1e80159e5c8d8b40a8dccc05d67b4e86d31d8c8d
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SHA256
1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21
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SHA512
f934f2f31d7bd885e52aecfb5c2539109a73a031152fbaafd1baa766d699ae6221f220727e854494d0ee00f2ae00a392d415ed01a10af1ec1e2cd6d76f90403c
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SSDEEP
98304:cNaXJU8AJvaro5mDbVFqT6QhicqJuM7BOvJODhfBAiYJAl59WV:cqU8A9EamDpImBOY9f2NV
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/2344-2-0x0000000004960000-0x000000000524B000-memory.dmp family_glupteba behavioral1/memory/2344-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2344-152-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/2344-193-0x0000000004960000-0x000000000524B000-memory.dmp family_glupteba behavioral1/memory/2344-212-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2272-211-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4280-214-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4280-217-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4280-220-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4280-223-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4280-226-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4280-229-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4280-232-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4280-235-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4280-238-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4280-241-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4280-244-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4280-247-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4280-250-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 3832 netsh.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid Process 4280 csrss.exe 1376 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.execsrss.exedescription 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\"" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.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.
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:
1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe -
Drops file in Windows directory 2 IoCs
Processes:
1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exedescription ioc Process File opened for modification C:\Windows\rss 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe File created C:\Windows\rss\csrss.exe 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4948 powershell.exe 1416 powershell.exe 1660 powershell.exe 2788 powershell.exe 1696 powershell.exe 1124 powershell.exe 4468 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 1648 schtasks.exe 2456 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates 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\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs 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\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.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\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exepowershell.exe1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 2788 powershell.exe 2788 powershell.exe 2344 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 2344 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 1696 powershell.exe 1696 powershell.exe 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 1124 powershell.exe 1124 powershell.exe 4468 powershell.exe 4468 powershell.exe 4948 powershell.exe 4948 powershell.exe 4948 powershell.exe 1416 powershell.exe 1416 powershell.exe 1660 powershell.exe 1660 powershell.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 4280 csrss.exe 4280 csrss.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 4280 csrss.exe 4280 csrss.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe 1376 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
powershell.exe1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exedescription pid Process Token: SeDebugPrivilege 2788 powershell.exe Token: SeDebugPrivilege 2344 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Token: SeImpersonatePrivilege 2344 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe Token: SeDebugPrivilege 1696 powershell.exe Token: SeDebugPrivilege 1124 powershell.exe Token: SeDebugPrivilege 4468 powershell.exe Token: SeDebugPrivilege 4948 powershell.exe Token: SeDebugPrivilege 1416 powershell.exe Token: SeDebugPrivilege 1660 powershell.exe Token: SeSystemEnvironmentPrivilege 4280 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.execmd.execsrss.exedescription pid Process procid_target PID 2344 wrote to memory of 2788 2344 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 84 PID 2344 wrote to memory of 2788 2344 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 84 PID 2344 wrote to memory of 2788 2344 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 84 PID 2272 wrote to memory of 1696 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 94 PID 2272 wrote to memory of 1696 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 94 PID 2272 wrote to memory of 1696 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 94 PID 2272 wrote to memory of 1824 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 98 PID 2272 wrote to memory of 1824 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 98 PID 1824 wrote to memory of 3832 1824 cmd.exe 100 PID 1824 wrote to memory of 3832 1824 cmd.exe 100 PID 2272 wrote to memory of 1124 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 101 PID 2272 wrote to memory of 1124 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 101 PID 2272 wrote to memory of 1124 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 101 PID 2272 wrote to memory of 4468 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 105 PID 2272 wrote to memory of 4468 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 105 PID 2272 wrote to memory of 4468 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 105 PID 2272 wrote to memory of 4280 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 107 PID 2272 wrote to memory of 4280 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 107 PID 2272 wrote to memory of 4280 2272 1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe 107 PID 4280 wrote to memory of 4948 4280 csrss.exe 108 PID 4280 wrote to memory of 4948 4280 csrss.exe 108 PID 4280 wrote to memory of 4948 4280 csrss.exe 108 PID 4280 wrote to memory of 1416 4280 csrss.exe 114 PID 4280 wrote to memory of 1416 4280 csrss.exe 114 PID 4280 wrote to memory of 1416 4280 csrss.exe 114 PID 4280 wrote to memory of 1660 4280 csrss.exe 116 PID 4280 wrote to memory of 1660 4280 csrss.exe 116 PID 4280 wrote to memory of 1660 4280 csrss.exe 116 PID 4280 wrote to memory of 1376 4280 csrss.exe 118 PID 4280 wrote to memory of 1376 4280 csrss.exe 118 -
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\1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe"C:\Users\Admin\AppData\Local\Temp\1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2344 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2788
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C:\Users\Admin\AppData\Local\Temp\1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe"C:\Users\Admin\AppData\Local\Temp\1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.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:2272 -
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:1696
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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:1824 -
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:3832
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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:1124
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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:4468
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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.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4280 -
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:4948
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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:1648
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2092
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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:1416
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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:1660
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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:1376
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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:2456
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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
MD5225f8ef70311d39610ccc4fd6c21cff6
SHA132a441acf682235d2a524e90edc8c7df59386b94
SHA2568fe696976b96b568a55e8fd0fc060f4a625f69c9d564e7be233a2a5a4eaf0f95
SHA512d722da1801eba96c9d9d3db3124da855cbef252b5791f278c140dd7bbfefcccc88f16f9b28c436e20edd062856f2a71769ca616f626bf3c892ab704adfa34ae0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50e9c56db6d07362867f2db65601b94f1
SHA1379a9739f44ed150498700757fe3ff2d7b167134
SHA25682dcfb69d73507690b3664d599e3f715d034fa86b76cd3f5be26a90da0a5d1e0
SHA512caecc5272de5437ff6a10d89a52468b7ae5d3732f0aa32db130abb55d37c1798a2d94ad2b4d757826ea439b2368abe8c03fdd60434bb71ab5b37919aa4d4409b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD553b010c5633dbd93cf5876d5ca2e0528
SHA1cb82d263aeecdf109d2474ad64d809f30f39951a
SHA25693802dd94fc8085a61aee03fb3d3acf8b5067dbf30dd27109017b6c5cded6ca7
SHA5122136e1e218eba29397b9192da282b5571be8585be6d800962eaec063b4088fe6d5e28f97ae740da560337a4b777b0f028b73206e66ac4d20c999e3219ae3f844
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5442564acc4b5dc4b9191ab05c250d738
SHA1c4efff49761c5a7bb151b53731c238616cdf07be
SHA25666211b375dd3b6b820abe9d09b37478c6a4937f7bfb6cf3631a43134b9c2e2cc
SHA512cdacfd4b4b132343fe72bccf3ba67318d5ca764cdddd744622d14508313c1f174ea8a7d607ab3d5b1beb44c43764260f8d5667b4af4f13d28d2b51222f1dd2e5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f3e382d4851f4627b3ecace1e7d866d4
SHA1e6c54ef3f365fb4448a80635e090b7dd355b4d2a
SHA256699d73ea06e03a642d9e6a593d91cc3ee176c7f1e5552bed1d2fe3931db8b727
SHA5129bab9f2bedcb220cb7b538773c84996ded37604a6f29f76c7794e134f7d4a1ab412c0cd933eb472ad2dda4b9d894e13a394df32825450248933907316596c035
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Filesize
4.1MB
MD58555b896248f47f8b2643d82d7cb17a9
SHA11e80159e5c8d8b40a8dccc05d67b4e86d31d8c8d
SHA2561e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21
SHA512f934f2f31d7bd885e52aecfb5c2539109a73a031152fbaafd1baa766d699ae6221f220727e854494d0ee00f2ae00a392d415ed01a10af1ec1e2cd6d76f90403c