Analysis
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max time kernel
150s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
27-03-2023 10:43
Static task
static1
General
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Target
c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe
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Size
4.1MB
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MD5
ee8d373bb90947e515dda2826595bb66
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SHA1
eee2e752cfe70a42727a3a2e2338c06130b38ec1
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SHA256
c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c
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SHA512
bf42b6d6ee5ee4b8ec05ebf1803dfa64905ddb8334c0c6e0c44f9b7bb14eedfbf6081e493e54c4a77a0e299401b1f43ea05f40ef981fad8befe3a6d858012e75
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SSDEEP
98304:qlUsq5/mFUy5W3l9xAhU+wp3o0ideZIOvfviQrMRto/4Sx2:aUB/mFUy5W3l8hM3oN4ZIbQrMRts2
Malware Config
Signatures
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Glupteba payload 17 IoCs
Processes:
resource yara_rule behavioral1/memory/3388-134-0x0000000002FA0000-0x0000000003817000-memory.dmp family_glupteba behavioral1/memory/3388-135-0x0000000000400000-0x0000000000EA5000-memory.dmp family_glupteba behavioral1/memory/2004-140-0x0000000000400000-0x0000000000EA5000-memory.dmp family_glupteba behavioral1/memory/4312-148-0x0000000000400000-0x0000000000EA5000-memory.dmp family_glupteba behavioral1/memory/4312-149-0x0000000000400000-0x0000000000EA5000-memory.dmp family_glupteba behavioral1/memory/4312-150-0x0000000000400000-0x0000000000EA5000-memory.dmp family_glupteba behavioral1/memory/4312-151-0x0000000000400000-0x0000000000EA5000-memory.dmp family_glupteba behavioral1/memory/4312-152-0x0000000000400000-0x0000000000EA5000-memory.dmp family_glupteba behavioral1/memory/4312-153-0x0000000000400000-0x0000000000EA5000-memory.dmp family_glupteba behavioral1/memory/4312-154-0x0000000000400000-0x0000000000EA5000-memory.dmp family_glupteba behavioral1/memory/4312-155-0x0000000000400000-0x0000000000EA5000-memory.dmp family_glupteba behavioral1/memory/4312-156-0x0000000000400000-0x0000000000EA5000-memory.dmp family_glupteba behavioral1/memory/4312-157-0x0000000000400000-0x0000000000EA5000-memory.dmp family_glupteba behavioral1/memory/4312-158-0x0000000000400000-0x0000000000EA5000-memory.dmp family_glupteba behavioral1/memory/4312-159-0x0000000000400000-0x0000000000EA5000-memory.dmp family_glupteba behavioral1/memory/4312-160-0x0000000000400000-0x0000000000EA5000-memory.dmp family_glupteba behavioral1/memory/4312-161-0x0000000000400000-0x0000000000EA5000-memory.dmp family_glupteba -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid process 4312 csrss.exe 3536 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\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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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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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 -
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:
c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe -
Drops file in Windows directory 2 IoCs
Processes:
c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exedescription ioc process File created C:\Windows\rss\csrss.exe c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe File opened for modification C:\Windows\rss c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Modifies data under HKEY_USERS 64 IoCs
Processes:
c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exec5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exeinjector.execsrss.exepid process 3388 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe 3388 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe 2004 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe 2004 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe 2004 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe 2004 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe 2004 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe 2004 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe 2004 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe 2004 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe 2004 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe 2004 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 4312 csrss.exe 4312 csrss.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 4312 csrss.exe 4312 csrss.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe 3536 injector.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.execsrss.exedescription pid process Token: SeDebugPrivilege 3388 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Token: SeImpersonatePrivilege 3388 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe Token: SeSystemEnvironmentPrivilege 4312 csrss.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.execmd.execsrss.exedescription pid process target process PID 2004 wrote to memory of 4300 2004 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe cmd.exe PID 2004 wrote to memory of 4300 2004 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe cmd.exe PID 4300 wrote to memory of 1088 4300 cmd.exe netsh.exe PID 4300 wrote to memory of 1088 4300 cmd.exe netsh.exe PID 2004 wrote to memory of 4312 2004 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe csrss.exe PID 2004 wrote to memory of 4312 2004 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe csrss.exe PID 2004 wrote to memory of 4312 2004 c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe csrss.exe PID 4312 wrote to memory of 3536 4312 csrss.exe injector.exe PID 4312 wrote to memory of 3536 4312 csrss.exe injector.exe -
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\c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe"C:\Users\Admin\AppData\Local\Temp\c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.exe"C:\Users\Admin\AppData\Local\Temp\c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c.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
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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
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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
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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.
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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)
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵
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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
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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)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\rss\csrss.exeFilesize
4.1MB
MD5ee8d373bb90947e515dda2826595bb66
SHA1eee2e752cfe70a42727a3a2e2338c06130b38ec1
SHA256c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c
SHA512bf42b6d6ee5ee4b8ec05ebf1803dfa64905ddb8334c0c6e0c44f9b7bb14eedfbf6081e493e54c4a77a0e299401b1f43ea05f40ef981fad8befe3a6d858012e75
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C:\Windows\rss\csrss.exeFilesize
4.1MB
MD5ee8d373bb90947e515dda2826595bb66
SHA1eee2e752cfe70a42727a3a2e2338c06130b38ec1
SHA256c5d9dc952f1a8d8826b4d2bf1cd9aa67f67988938dcda4aa2734ceb16434059c
SHA512bf42b6d6ee5ee4b8ec05ebf1803dfa64905ddb8334c0c6e0c44f9b7bb14eedfbf6081e493e54c4a77a0e299401b1f43ea05f40ef981fad8befe3a6d858012e75
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memory/2004-140-0x0000000000400000-0x0000000000EA5000-memory.dmpFilesize
10.6MB
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memory/3388-134-0x0000000002FA0000-0x0000000003817000-memory.dmpFilesize
8.5MB
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memory/3388-135-0x0000000000400000-0x0000000000EA5000-memory.dmpFilesize
10.6MB
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memory/4312-151-0x0000000000400000-0x0000000000EA5000-memory.dmpFilesize
10.6MB
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memory/4312-155-0x0000000000400000-0x0000000000EA5000-memory.dmpFilesize
10.6MB
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memory/4312-150-0x0000000000400000-0x0000000000EA5000-memory.dmpFilesize
10.6MB
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memory/4312-148-0x0000000000400000-0x0000000000EA5000-memory.dmpFilesize
10.6MB
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memory/4312-152-0x0000000000400000-0x0000000000EA5000-memory.dmpFilesize
10.6MB
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memory/4312-153-0x0000000000400000-0x0000000000EA5000-memory.dmpFilesize
10.6MB
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memory/4312-154-0x0000000000400000-0x0000000000EA5000-memory.dmpFilesize
10.6MB
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memory/4312-149-0x0000000000400000-0x0000000000EA5000-memory.dmpFilesize
10.6MB
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memory/4312-156-0x0000000000400000-0x0000000000EA5000-memory.dmpFilesize
10.6MB
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memory/4312-157-0x0000000000400000-0x0000000000EA5000-memory.dmpFilesize
10.6MB
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memory/4312-158-0x0000000000400000-0x0000000000EA5000-memory.dmpFilesize
10.6MB
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memory/4312-159-0x0000000000400000-0x0000000000EA5000-memory.dmpFilesize
10.6MB
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memory/4312-160-0x0000000000400000-0x0000000000EA5000-memory.dmpFilesize
10.6MB
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memory/4312-161-0x0000000000400000-0x0000000000EA5000-memory.dmpFilesize
10.6MB