Analysis
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max time kernel
149s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 11:17
Static task
static1
Behavioral task
behavioral1
Sample
4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe
Resource
win10v2004-20240508-en
General
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Target
4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe
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Size
4.1MB
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MD5
4808163c116b40a9c3ab29ad6d656d6f
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SHA1
c7b767623b94fb1c7001a7ebb253008a7e7a629b
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SHA256
4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823
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SHA512
bfa6859b665be309ea451aea13255d7eae653f62fee93fc865acd40e02cfba431ff71c4427a79b2e9886960899afe55b373276159881a20d1890802f4b2e5a9b
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SSDEEP
98304:tH+PiUxpnK5pcCD6RLXH4DRMjOnEmJ5mWZ44js55cU5wvI2A:tH+PiSfw6Rz4ejOEAZ44S5J5ww2A
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/1316-2-0x0000000004590000-0x0000000004E7B000-memory.dmp family_glupteba behavioral1/memory/1316-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1316-55-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1316-54-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/1316-56-0x0000000004590000-0x0000000004E7B000-memory.dmp family_glupteba behavioral1/memory/4372-135-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/3160-218-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/3160-222-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/3160-229-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/3160-231-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/3160-233-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/3160-235-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/3160-237-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/3160-239-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/3160-241-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/3160-243-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/3160-245-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/3160-247-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/3160-249-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 4404 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 3160 csrss.exe 1352 injector.exe 2536 windefender.exe 4008 windefender.exe -
Processes:
resource yara_rule behavioral1/files/0x000900000002341c-221.dat upx behavioral1/memory/2536-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4008-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2536-228-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4008-230-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4008-234-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
csrss.exe4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.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 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.
Processes:
4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe -
Drops file in Windows directory 4 IoCs
Processes:
4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe File created C:\Windows\rss\csrss.exe 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.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 1648 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 3192 powershell.exe 2912 powershell.exe 1316 powershell.exe 916 powershell.exe 3576 powershell.exe 2536 powershell.exe 3200 powershell.exe -
Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target Process procid_target 2612 1316 WerFault.exe 82 3248 4372 WerFault.exe 96 -
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 5032 schtasks.exe 1180 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exepowershell.exewindefender.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,-391 = "Arab Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-462 = "Afghanistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs 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\@tzres.dll,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka 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\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.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,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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\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\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates 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\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-52 = "Greenland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-251 = "Dateline Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.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\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-672 = "AUS Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exepowershell.exe4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 2536 powershell.exe 2536 powershell.exe 1316 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 1316 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 3200 powershell.exe 3200 powershell.exe 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 3192 powershell.exe 3192 powershell.exe 2912 powershell.exe 2912 powershell.exe 1316 powershell.exe 1316 powershell.exe 916 powershell.exe 916 powershell.exe 3576 powershell.exe 3576 powershell.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 3160 csrss.exe 3160 csrss.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 3160 csrss.exe 3160 csrss.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 3160 csrss.exe 3160 csrss.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe 1352 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 2536 powershell.exe Token: SeDebugPrivilege 1316 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Token: SeImpersonatePrivilege 1316 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Token: SeDebugPrivilege 3200 powershell.exe Token: SeDebugPrivilege 3192 powershell.exe Token: SeDebugPrivilege 2912 powershell.exe Token: SeDebugPrivilege 1316 powershell.exe Token: SeDebugPrivilege 916 powershell.exe Token: SeDebugPrivilege 3576 powershell.exe Token: SeSystemEnvironmentPrivilege 3160 csrss.exe Token: SeSecurityPrivilege 1648 sc.exe Token: SeSecurityPrivilege 1648 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 1316 wrote to memory of 2536 1316 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 84 PID 1316 wrote to memory of 2536 1316 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 84 PID 1316 wrote to memory of 2536 1316 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 84 PID 4372 wrote to memory of 3200 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 100 PID 4372 wrote to memory of 3200 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 100 PID 4372 wrote to memory of 3200 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 100 PID 4372 wrote to memory of 748 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 104 PID 4372 wrote to memory of 748 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 104 PID 748 wrote to memory of 4404 748 cmd.exe 107 PID 748 wrote to memory of 4404 748 cmd.exe 107 PID 4372 wrote to memory of 3192 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 108 PID 4372 wrote to memory of 3192 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 108 PID 4372 wrote to memory of 3192 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 108 PID 4372 wrote to memory of 2912 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 110 PID 4372 wrote to memory of 2912 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 110 PID 4372 wrote to memory of 2912 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 110 PID 4372 wrote to memory of 3160 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 112 PID 4372 wrote to memory of 3160 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 112 PID 4372 wrote to memory of 3160 4372 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 112 PID 3160 wrote to memory of 1316 3160 csrss.exe 115 PID 3160 wrote to memory of 1316 3160 csrss.exe 115 PID 3160 wrote to memory of 1316 3160 csrss.exe 115 PID 3160 wrote to memory of 916 3160 csrss.exe 120 PID 3160 wrote to memory of 916 3160 csrss.exe 120 PID 3160 wrote to memory of 916 3160 csrss.exe 120 PID 3160 wrote to memory of 3576 3160 csrss.exe 123 PID 3160 wrote to memory of 3576 3160 csrss.exe 123 PID 3160 wrote to memory of 3576 3160 csrss.exe 123 PID 3160 wrote to memory of 1352 3160 csrss.exe 125 PID 3160 wrote to memory of 1352 3160 csrss.exe 125 PID 2536 wrote to memory of 3184 2536 windefender.exe 132 PID 2536 wrote to memory of 3184 2536 windefender.exe 132 PID 2536 wrote to memory of 3184 2536 windefender.exe 132 PID 3184 wrote to memory of 1648 3184 cmd.exe 133 PID 3184 wrote to memory of 1648 3184 cmd.exe 133 PID 3184 wrote to memory of 1648 3184 cmd.exe 133 -
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\4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe"C:\Users\Admin\AppData\Local\Temp\4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1316 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2536
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C:\Users\Admin\AppData\Local\Temp\4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe"C:\Users\Admin\AppData\Local\Temp\4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.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:4372 -
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:3200
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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:748 -
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:4404
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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:3192
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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:2912
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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:3160 -
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:1316
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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:5032
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4388
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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:916
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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:3576
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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:1352
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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:1180
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2536 -
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:3184 -
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:1648
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 8843⤵
- Program crash
PID:3248
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1316 -s 8042⤵
- Program crash
PID:2612
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1316 -ip 13161⤵PID:768
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4372 -ip 43721⤵PID:1216
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4008
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
MD59c7c49096cfefc2debfd5d0c479ad0eb
SHA1e4f801380087744092b18d90c76b773f952c11d7
SHA25613a97e200b6f9f5f444ee5fe119dbb97fa2b583c86b622528be85e937f76d63b
SHA51224886d3de0721a59a0eaac5109d25cee88d19399e39c843fdfe5d81065168a70d0a9a1c7ad6e2d4db09fbd6b43d2a6147b88ed10b72191593a39fafd714fcfb1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fbaec27e2f985dc981d51c7d5d227160
SHA1494234b50e287403ea57cbfcc1abc6dcda3ab879
SHA256dc2a17c12cfe3f5a0bdea5eb86af4d5c87009152a09ea55734228dbf30f2451c
SHA512f4caa3ccca788c0297e15fe8ad9fe335eeea67aa6ee82be10a094e54370c024b853a3725986386602138f76262e9db67f70f8f3ad24ce48a5438073509a1ab78
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51e7cb863b48348b0172e426624a03f3f
SHA1304be339bb8a6831fc5aa9a7932fb4b18c94a8b4
SHA256bedb9e1b2be2a512e33b80afa2634391e25d291790d2c9c3a4e1f8066aa78927
SHA5122d949e2dd32257e115c3e07e6e4751ad73ce991eb4ec0366b08dcd33b846163aab830ed57267ed07672d7ee89c868161412dbdf7713fe65a81d188183cd69c6f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bbde26e241b85bc1828b3ca8f02ae1e0
SHA169c1e5d7540e323b10bc4ca07181438b7c06c2a0
SHA256b38d0e11408e1826d4f4bfc6fab71a92a4c05b43b1e89ff62b0db08ee23d380f
SHA5129c3f42e084fc96f091c2b22be54b4afa152747ad589ab3bbe8b7d7e1b7c7f494235fd8a148d3e770ab49cb0a7a6fdf4939a5da44a422e4b036d4af871cdcd4e3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD580bb478753fd5abe1a45757e992482e4
SHA1733e9e60392d7a7296e1e25b98c6edb9583bb240
SHA256b80fa7f483224dd0a768372cfac3caa3543a8cda181d77b762b2d0b1b88f9387
SHA512970b684e6232e3b5d442cb98f550a5e12444c435ea715ca1ad900cfe8ed6a52c8c59dff27bc02a5942e059613815d3c4dd412b3525459951305aff606c64c6b1
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Filesize
4.1MB
MD54808163c116b40a9c3ab29ad6d656d6f
SHA1c7b767623b94fb1c7001a7ebb253008a7e7a629b
SHA2564b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823
SHA512bfa6859b665be309ea451aea13255d7eae653f62fee93fc865acd40e02cfba431ff71c4427a79b2e9886960899afe55b373276159881a20d1890802f4b2e5a9b
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec