Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-1703_x64 -
resource
win10-20230220-en -
resource tags
arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system -
submitted
28-03-2023 20:07
Static task
static1
General
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Target
ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe
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Size
4.1MB
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MD5
d5f9586c5b24e12d2af0c1ca8df62c10
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SHA1
ed526b79b81ad32f72fad9751d17fd80ea17a267
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SHA256
ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f
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SHA512
4c2af04156a2bd64a52504371d0623b9a29a71c4372628b33abe538f87b9c1b87c5decbc3a5e4f095b063e292b2a791c8f537d44e456d32e9a8e0a7ea3de005c
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SSDEEP
98304:kELwTlvdgEX2NpXI1CvrZ0wYkLx78mDXz//wDHa17+P6a+DsJxVO2PFu:kEaAEXAsCv10rkLuUz//Wa1iPqsJxVOv
Malware Config
Signatures
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Glupteba payload 17 IoCs
Processes:
resource yara_rule behavioral1/memory/4452-121-0x0000000005200000-0x0000000005A77000-memory.dmp family_glupteba behavioral1/memory/4452-122-0x0000000000400000-0x0000000002F4D000-memory.dmp family_glupteba behavioral1/memory/3100-127-0x0000000000400000-0x0000000002F4D000-memory.dmp family_glupteba behavioral1/memory/1404-135-0x0000000000400000-0x0000000002F4D000-memory.dmp family_glupteba behavioral1/memory/1404-136-0x0000000000400000-0x0000000002F4D000-memory.dmp family_glupteba behavioral1/memory/1404-137-0x0000000000400000-0x0000000002F4D000-memory.dmp family_glupteba behavioral1/memory/1404-138-0x0000000000400000-0x0000000002F4D000-memory.dmp family_glupteba behavioral1/memory/1404-139-0x0000000000400000-0x0000000002F4D000-memory.dmp family_glupteba behavioral1/memory/1404-140-0x0000000000400000-0x0000000002F4D000-memory.dmp family_glupteba behavioral1/memory/1404-141-0x0000000000400000-0x0000000002F4D000-memory.dmp family_glupteba behavioral1/memory/1404-142-0x0000000000400000-0x0000000002F4D000-memory.dmp family_glupteba behavioral1/memory/1404-143-0x0000000000400000-0x0000000002F4D000-memory.dmp family_glupteba behavioral1/memory/1404-144-0x0000000000400000-0x0000000002F4D000-memory.dmp family_glupteba behavioral1/memory/1404-145-0x0000000000400000-0x0000000002F4D000-memory.dmp family_glupteba behavioral1/memory/1404-146-0x0000000000400000-0x0000000002F4D000-memory.dmp family_glupteba behavioral1/memory/1404-147-0x0000000000400000-0x0000000002F4D000-memory.dmp family_glupteba behavioral1/memory/1404-154-0x0000000000400000-0x0000000002F4D000-memory.dmp family_glupteba -
Processes:
ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe = "0" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Executes dropped EXE 3 IoCs
Processes:
csrss.exeinjector.exef801950a962ddba14caaa44bf084b55c.exepid process 1404 csrss.exe 4968 injector.exe 4860 f801950a962ddba14caaa44bf084b55c.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe upx C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe upx behavioral1/memory/4860-153-0x0000000000400000-0x0000000000C25000-memory.dmp upx -
Processes:
ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe = "0" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3346939869-2835594282-3775165920-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\S-1-5-21-3346939869-2835594282-3775165920-1000\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:
ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe -
Drops file in Windows directory 2 IoCs
Processes:
ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exedescription ioc process File opened for modification C:\Windows\rss ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe File created C:\Windows\rss\csrss.exe ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 1108 schtasks.exe 4160 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.execsrss.exenetsh.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.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" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Key created \REGISTRY\USER\.DEFAULT\SYSTEM netsh.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Key created \REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Control\NetTrace netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.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" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.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,-431 = "Iran Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.execcea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exeinjector.execsrss.exepid process 4452 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe 4452 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe 3100 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe 3100 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe 3100 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe 3100 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe 3100 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe 3100 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe 3100 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe 3100 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe 3100 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe 3100 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 1404 csrss.exe 1404 csrss.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 1404 csrss.exe 1404 csrss.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.execsrss.exedescription pid process Token: SeDebugPrivilege 4452 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Token: SeImpersonatePrivilege 4452 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe Token: SeSystemEnvironmentPrivilege 1404 csrss.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.execmd.execsrss.exedescription pid process target process PID 3100 wrote to memory of 3540 3100 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe cmd.exe PID 3100 wrote to memory of 3540 3100 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe cmd.exe PID 3540 wrote to memory of 3620 3540 cmd.exe netsh.exe PID 3540 wrote to memory of 3620 3540 cmd.exe netsh.exe PID 3100 wrote to memory of 1404 3100 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe csrss.exe PID 3100 wrote to memory of 1404 3100 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe csrss.exe PID 3100 wrote to memory of 1404 3100 ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe csrss.exe PID 1404 wrote to memory of 4968 1404 csrss.exe injector.exe PID 1404 wrote to memory of 4968 1404 csrss.exe injector.exe PID 1404 wrote to memory of 4860 1404 csrss.exe f801950a962ddba14caaa44bf084b55c.exe PID 1404 wrote to memory of 4860 1404 csrss.exe f801950a962ddba14caaa44bf084b55c.exe PID 1404 wrote to memory of 4860 1404 csrss.exe f801950a962ddba14caaa44bf084b55c.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\ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe"C:\Users\Admin\AppData\Local\Temp\ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4452 -
C:\Users\Admin\AppData\Local\Temp\ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe"C:\Users\Admin\AppData\Local\Temp\ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f.exe"2⤵
- Windows security bypass
- Windows security modification
- 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:3100 -
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:3540 -
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
- Modifies data under HKEY_USERS
PID:3620 -
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
PID:1404 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:1108 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3788
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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:4968 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4160 -
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exeC:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe4⤵
- Executes dropped EXE
PID:4860
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exeFilesize
3.2MB
MD5f801950a962ddba14caaa44bf084b55c
SHA17cadc9076121297428442785536ba0df2d4ae996
SHA256c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f
SHA5124183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5
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C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exeFilesize
3.2MB
MD5f801950a962ddba14caaa44bf084b55c
SHA17cadc9076121297428442785536ba0df2d4ae996
SHA256c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f
SHA5124183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5
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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
MD5d5f9586c5b24e12d2af0c1ca8df62c10
SHA1ed526b79b81ad32f72fad9751d17fd80ea17a267
SHA256ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f
SHA5124c2af04156a2bd64a52504371d0623b9a29a71c4372628b33abe538f87b9c1b87c5decbc3a5e4f095b063e292b2a791c8f537d44e456d32e9a8e0a7ea3de005c
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C:\Windows\rss\csrss.exeFilesize
4.1MB
MD5d5f9586c5b24e12d2af0c1ca8df62c10
SHA1ed526b79b81ad32f72fad9751d17fd80ea17a267
SHA256ccea3d36d7f317cc85cd067e634cc4428d2ab1a26c4cd4f1b3599cb5f1e1961f
SHA5124c2af04156a2bd64a52504371d0623b9a29a71c4372628b33abe538f87b9c1b87c5decbc3a5e4f095b063e292b2a791c8f537d44e456d32e9a8e0a7ea3de005c
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memory/1404-140-0x0000000000400000-0x0000000002F4D000-memory.dmpFilesize
43.3MB
-
memory/1404-143-0x0000000000400000-0x0000000002F4D000-memory.dmpFilesize
43.3MB
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memory/1404-136-0x0000000000400000-0x0000000002F4D000-memory.dmpFilesize
43.3MB
-
memory/1404-137-0x0000000000400000-0x0000000002F4D000-memory.dmpFilesize
43.3MB
-
memory/1404-138-0x0000000000400000-0x0000000002F4D000-memory.dmpFilesize
43.3MB
-
memory/1404-139-0x0000000000400000-0x0000000002F4D000-memory.dmpFilesize
43.3MB
-
memory/1404-154-0x0000000000400000-0x0000000002F4D000-memory.dmpFilesize
43.3MB
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memory/1404-141-0x0000000000400000-0x0000000002F4D000-memory.dmpFilesize
43.3MB
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memory/1404-142-0x0000000000400000-0x0000000002F4D000-memory.dmpFilesize
43.3MB
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memory/1404-135-0x0000000000400000-0x0000000002F4D000-memory.dmpFilesize
43.3MB
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memory/1404-144-0x0000000000400000-0x0000000002F4D000-memory.dmpFilesize
43.3MB
-
memory/1404-145-0x0000000000400000-0x0000000002F4D000-memory.dmpFilesize
43.3MB
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memory/1404-146-0x0000000000400000-0x0000000002F4D000-memory.dmpFilesize
43.3MB
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memory/1404-147-0x0000000000400000-0x0000000002F4D000-memory.dmpFilesize
43.3MB
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memory/3100-127-0x0000000000400000-0x0000000002F4D000-memory.dmpFilesize
43.3MB
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memory/4452-122-0x0000000000400000-0x0000000002F4D000-memory.dmpFilesize
43.3MB
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memory/4452-121-0x0000000005200000-0x0000000005A77000-memory.dmpFilesize
8.5MB
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memory/4860-153-0x0000000000400000-0x0000000000C25000-memory.dmpFilesize
8.1MB