Analysis
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max time kernel
150s -
max time network
129s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
15-05-2024 15:19
Static task
static1
Behavioral task
behavioral1
Sample
44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe
Resource
win10v2004-20240426-en
General
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Target
44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe
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Size
4.1MB
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MD5
389f3cdc133d6d3e2f6402be33f55080
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SHA1
fb2c0822f895b0d4c3a484c2ef47738850a5909f
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SHA256
44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065
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SHA512
4a9bc84bbb93a7d4da7653b648fbf1e5d07190c78e5fca91499aa87f4f5f99c07f99983e45b9eb4bd309829708b7d61be7ac36e2a0ec78351b71e6479e7f1b04
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SSDEEP
98304:6oJ/zNpfNOjfVFQ/nccBDV6mYf0gdQtHi3wo8k3cC1G76/igt:6grNPOj9FQvccBDkmyddxD3VFiA
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/4068-2-0x0000000004C50000-0x000000000553B000-memory.dmp family_glupteba behavioral2/memory/4068-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4068-23-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4068-55-0x0000000004C50000-0x000000000553B000-memory.dmp family_glupteba behavioral2/memory/4068-52-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/1232-74-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4068-96-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1232-122-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2084-193-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2084-206-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2084-211-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2084-214-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2084-217-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2084-220-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2084-223-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2084-226-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2084-229-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2084-232-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3424 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2084 csrss.exe 3120 injector.exe 4420 windefender.exe 4000 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa19-202.dat upx behavioral2/memory/4420-203-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4000-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4420-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4000-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4000-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Set value (str) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\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 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 -
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 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe File created C:\Windows\rss\csrss.exe 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.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 3676 sc.exe -
pid Process 3220 powershell.exe 1180 powershell.exe 4956 powershell.exe 1292 powershell.exe 4984 powershell.exe 1664 powershell.exe 4580 powershell.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 420 4956 WerFault.exe 83 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2468 schtasks.exe 688 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\@tzres.dll,-342 = "Egypt Standard Time" windefender.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\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.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" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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,-1022 = "Bangladesh Standard Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.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" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2411 = "Marquesas Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-132 = "US Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.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,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-191 = "Mountain Daylight 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" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA 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,-121 = "SA Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-362 = "GTB Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2182 = "Astrakhan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time" windefender.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,-911 = "Mauritius Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.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,-1801 = "Line Islands Daylight Time" windefender.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,-2181 = "Astrakhan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4956 powershell.exe 4956 powershell.exe 4068 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 4068 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 1292 powershell.exe 1292 powershell.exe 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 4984 powershell.exe 4984 powershell.exe 1664 powershell.exe 1664 powershell.exe 4580 powershell.exe 4580 powershell.exe 3220 powershell.exe 3220 powershell.exe 1180 powershell.exe 1180 powershell.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 2084 csrss.exe 2084 csrss.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 2084 csrss.exe 2084 csrss.exe 3120 injector.exe 3120 injector.exe 2084 csrss.exe 2084 csrss.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe 3120 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4956 powershell.exe Token: SeDebugPrivilege 4068 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Token: SeImpersonatePrivilege 4068 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe Token: SeDebugPrivilege 1292 powershell.exe Token: SeDebugPrivilege 4984 powershell.exe Token: SeDebugPrivilege 1664 powershell.exe Token: SeDebugPrivilege 4580 powershell.exe Token: SeDebugPrivilege 3220 powershell.exe Token: SeDebugPrivilege 1180 powershell.exe Token: SeSystemEnvironmentPrivilege 2084 csrss.exe Token: SeSecurityPrivilege 3676 sc.exe Token: SeSecurityPrivilege 3676 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4068 wrote to memory of 4956 4068 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 83 PID 4068 wrote to memory of 4956 4068 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 83 PID 4068 wrote to memory of 4956 4068 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 83 PID 1232 wrote to memory of 1292 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 91 PID 1232 wrote to memory of 1292 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 91 PID 1232 wrote to memory of 1292 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 91 PID 1232 wrote to memory of 1820 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 93 PID 1232 wrote to memory of 1820 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 93 PID 1820 wrote to memory of 3424 1820 cmd.exe 95 PID 1820 wrote to memory of 3424 1820 cmd.exe 95 PID 1232 wrote to memory of 4984 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 96 PID 1232 wrote to memory of 4984 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 96 PID 1232 wrote to memory of 4984 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 96 PID 1232 wrote to memory of 1664 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 98 PID 1232 wrote to memory of 1664 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 98 PID 1232 wrote to memory of 1664 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 98 PID 1232 wrote to memory of 2084 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 100 PID 1232 wrote to memory of 2084 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 100 PID 1232 wrote to memory of 2084 1232 44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe 100 PID 2084 wrote to memory of 4580 2084 csrss.exe 101 PID 2084 wrote to memory of 4580 2084 csrss.exe 101 PID 2084 wrote to memory of 4580 2084 csrss.exe 101 PID 2084 wrote to memory of 3220 2084 csrss.exe 106 PID 2084 wrote to memory of 3220 2084 csrss.exe 106 PID 2084 wrote to memory of 3220 2084 csrss.exe 106 PID 2084 wrote to memory of 1180 2084 csrss.exe 109 PID 2084 wrote to memory of 1180 2084 csrss.exe 109 PID 2084 wrote to memory of 1180 2084 csrss.exe 109 PID 2084 wrote to memory of 3120 2084 csrss.exe 111 PID 2084 wrote to memory of 3120 2084 csrss.exe 111 PID 4420 wrote to memory of 2140 4420 windefender.exe 117 PID 4420 wrote to memory of 2140 4420 windefender.exe 117 PID 4420 wrote to memory of 2140 4420 windefender.exe 117 PID 2140 wrote to memory of 3676 2140 cmd.exe 118 PID 2140 wrote to memory of 3676 2140 cmd.exe 118 PID 2140 wrote to memory of 3676 2140 cmd.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\44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe"C:\Users\Admin\AppData\Local\Temp\44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4068 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4956 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4956 -s 19003⤵
- Program crash
PID:420
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C:\Users\Admin\AppData\Local\Temp\44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.exe"C:\Users\Admin\AppData\Local\Temp\44b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065.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:1232 -
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:1292
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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:1820 -
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:3424
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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:4984
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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:1664
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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:2084 -
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:4580
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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:2468
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:72
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3220
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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:1180
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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:3120
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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:688
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4420 -
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:2140 -
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:3676
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4956 -ip 49561⤵PID:4832
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4000
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5049caad8d4c9de846a9a0310957573c6
SHA146b2b4f2421872c46efdb85c450b5edd3d55532c
SHA256d97532bf91d45a7507dabd55e7f761ebac40091d555848eb8676e57bb707e6c3
SHA51240300260ebdc166cb2041ee448203cbef18c31559c0aaca7c4204a8044657e6c890be96479f586842d0df941b02cba1e6c257b455c46170daa9fbed00304325c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fbed158cb9165fa66f40396e5e9e6c6a
SHA1785aa6c8db1e336d46d9814a18b5edd403d6d44d
SHA2568e43d26a94a22bc7e4706e5377bfeef877544125f2343a84c9b05b9e6aa72e3f
SHA5124eb81df8e7c36309d69631f86d70a21c4a835041f36b1839b1cf42dd02c7e70cb4513ba8d2c78ca733a0554fa14f67b2abcef15567c7000f6a31bf3bff55bb41
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b61dfbd0cc58a3b055e950e4fc4e23a6
SHA14cbe30c310051504c21ed2fdc498e42c7bad5581
SHA2562ec5a35a287f3f2ca959d4ca435659dcacb612237072f65db0afcfd1dad4716d
SHA5120ecc1953cf1120581c4bfce0a05f72d638cc6915d64149051f354c9b58412627a44b0782383ebec3baa5b331f6f1ff6bd87a84a49854d8b886259372645bb7f3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54c58e4115ad73c91c72dfed1b623fb6a
SHA109d0ee8fb9b1151d45018fc858acc048caf80d0e
SHA25663d8b8d31dbe1dfa2f0b5796e92452e01511423e1891b769e228c0f84de8215e
SHA5125f321fc37bc7b1214bf1ce268aca21f6db3411ddf007328c28785700614351e3401e763f9a98ad4ded3a59dba4bcf299a5d8f4f8053d12528b10bf5468edd014
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f6957b20dbfc47a6df07b6687d161377
SHA1ffb11fe6dc323cb1bd4017f9a2c2d8dd67f91768
SHA2564c310412714077c7663c2990124efa239b5b2e414d713bffb13d4a3df2ee48d8
SHA512d4f82bc0035390eddeb769c22e592dc9204319f4fe93cf7cfbe996f336844f539e118e0c8eb7327c3c231b1a1734cc3b32b8d568b0f4fef667ddfcdaa44e0041
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Filesize
4.1MB
MD5389f3cdc133d6d3e2f6402be33f55080
SHA1fb2c0822f895b0d4c3a484c2ef47738850a5909f
SHA25644b554dece2046b48d3d47dea5bfb8e0a58ccf5b1f8b3bd5090e07739e0c3065
SHA5124a9bc84bbb93a7d4da7653b648fbf1e5d07190c78e5fca91499aa87f4f5f99c07f99983e45b9eb4bd309829708b7d61be7ac36e2a0ec78351b71e6479e7f1b04
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec