Analysis
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max time kernel
150s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
26-03-2023 11:41
Static task
static1
General
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Target
74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe
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Size
4.1MB
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MD5
a4578b5d8e42ba12395dda73a61693e7
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SHA1
c4c2f04472c00578c76390c7d184ab048256bbd6
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SHA256
74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42
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SHA512
2af73a146d65b95a959d2a2d07bbb32d48b45097dabc16671895f7212538080b569f673e09a0f5d68ab5b97336274e9a72fa202f9ef45a62cdf73626d5300421
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SSDEEP
98304:ViGIF0rUD4kkX5/Z9a3jHzxa0o1kMvnM4CI:AGImQDTORZiH+1kMfM4CI
Malware Config
Signatures
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Glupteba payload 17 IoCs
Processes:
resource yara_rule behavioral1/memory/1920-134-0x0000000005380000-0x0000000005BF7000-memory.dmp family_glupteba behavioral1/memory/1920-135-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/1128-140-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/5048-148-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/5048-149-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/5048-150-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/5048-151-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/5048-152-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/5048-153-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/5048-154-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/5048-155-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/5048-156-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/5048-157-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/5048-158-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/5048-159-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/5048-160-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/5048-161-0x0000000000400000-0x0000000002F49000-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 5048 csrss.exe 3384 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.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\"" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.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:
74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe -
Drops file in Windows directory 2 IoCs
Processes:
74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exedescription ioc process File opened for modification C:\Windows\rss 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe File created C:\Windows\rss\csrss.exe 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.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:
74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople csrss.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" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.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,-571 = "China Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.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,-1411 = "Syria Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.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" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exeinjector.execsrss.exepid process 1920 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe 1920 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe 1128 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe 1128 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe 1128 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe 1128 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe 1128 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe 1128 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe 1128 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe 1128 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe 1128 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe 1128 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 5048 csrss.exe 5048 csrss.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 5048 csrss.exe 5048 csrss.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe 3384 injector.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.execsrss.exedescription pid process Token: SeDebugPrivilege 1920 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Token: SeImpersonatePrivilege 1920 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe Token: SeSystemEnvironmentPrivilege 5048 csrss.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.execmd.execsrss.exedescription pid process target process PID 1128 wrote to memory of 1908 1128 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe cmd.exe PID 1128 wrote to memory of 1908 1128 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe cmd.exe PID 1908 wrote to memory of 5016 1908 cmd.exe netsh.exe PID 1908 wrote to memory of 5016 1908 cmd.exe netsh.exe PID 1128 wrote to memory of 5048 1128 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe csrss.exe PID 1128 wrote to memory of 5048 1128 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe csrss.exe PID 1128 wrote to memory of 5048 1128 74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe csrss.exe PID 5048 wrote to memory of 3384 5048 csrss.exe injector.exe PID 5048 wrote to memory of 3384 5048 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\74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe"C:\Users\Admin\AppData\Local\Temp\74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.exe"C:\Users\Admin\AppData\Local\Temp\74f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42.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
MD5a4578b5d8e42ba12395dda73a61693e7
SHA1c4c2f04472c00578c76390c7d184ab048256bbd6
SHA25674f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42
SHA5122af73a146d65b95a959d2a2d07bbb32d48b45097dabc16671895f7212538080b569f673e09a0f5d68ab5b97336274e9a72fa202f9ef45a62cdf73626d5300421
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C:\Windows\rss\csrss.exeFilesize
4.1MB
MD5a4578b5d8e42ba12395dda73a61693e7
SHA1c4c2f04472c00578c76390c7d184ab048256bbd6
SHA25674f241669a4f9826e2445d6affa29e9905029904096bf3a98736c5e48f30ca42
SHA5122af73a146d65b95a959d2a2d07bbb32d48b45097dabc16671895f7212538080b569f673e09a0f5d68ab5b97336274e9a72fa202f9ef45a62cdf73626d5300421
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memory/1128-140-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/1920-134-0x0000000005380000-0x0000000005BF7000-memory.dmpFilesize
8.5MB
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memory/1920-135-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/5048-151-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/5048-155-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/5048-150-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/5048-148-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/5048-152-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/5048-153-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/5048-154-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/5048-149-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/5048-156-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/5048-157-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/5048-158-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/5048-159-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/5048-160-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/5048-161-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB