Analysis
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max time kernel
146s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system -
submitted
28-03-2023 23:54
Static task
static1
General
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Target
d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe
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Size
4.1MB
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MD5
20d3f1186559e7362462ee32f7929020
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SHA1
5bb4ef2f2d337a8a83cb632f279ab0cf6cd89838
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SHA256
d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0
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SHA512
0a4407a27a99ed7417898de48573f957605649eefe0a2d673681df1c9734e5bef0c2a81d9966a9eb16769a41d80dc021c9b881f0609c7a0da662a67d9919414d
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SSDEEP
98304:g9KBPP4wATZUdpDaBq3Icw1Qa4TR0EJxRxOJvMxxWLN:1TAVax4c2QaYR0EJ9OJvMx0
Malware Config
Signatures
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Glupteba payload 16 IoCs
Processes:
resource yara_rule behavioral1/memory/2564-134-0x0000000005440000-0x0000000005CB7000-memory.dmp family_glupteba behavioral1/memory/2564-135-0x0000000000400000-0x0000000002F3D000-memory.dmp family_glupteba behavioral1/memory/1700-140-0x0000000000400000-0x0000000002F3D000-memory.dmp family_glupteba behavioral1/memory/736-148-0x0000000000400000-0x0000000002F3D000-memory.dmp family_glupteba behavioral1/memory/736-149-0x0000000000400000-0x0000000002F3D000-memory.dmp family_glupteba behavioral1/memory/736-150-0x0000000000400000-0x0000000002F3D000-memory.dmp family_glupteba behavioral1/memory/736-151-0x0000000000400000-0x0000000002F3D000-memory.dmp family_glupteba behavioral1/memory/736-152-0x0000000000400000-0x0000000002F3D000-memory.dmp family_glupteba behavioral1/memory/736-153-0x0000000000400000-0x0000000002F3D000-memory.dmp family_glupteba behavioral1/memory/736-154-0x0000000000400000-0x0000000002F3D000-memory.dmp family_glupteba behavioral1/memory/736-155-0x0000000000400000-0x0000000002F3D000-memory.dmp family_glupteba behavioral1/memory/736-156-0x0000000000400000-0x0000000002F3D000-memory.dmp family_glupteba behavioral1/memory/736-157-0x0000000000400000-0x0000000002F3D000-memory.dmp family_glupteba behavioral1/memory/736-158-0x0000000000400000-0x0000000002F3D000-memory.dmp family_glupteba behavioral1/memory/736-159-0x0000000000400000-0x0000000002F3D000-memory.dmp family_glupteba behavioral1/memory/736-166-0x0000000000400000-0x0000000002F3D000-memory.dmp family_glupteba -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Executes dropped EXE 3 IoCs
Processes:
csrss.exeinjector.exef801950a962ddba14caaa44bf084b55c.exepid process 736 csrss.exe 4972 injector.exe 660 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/660-165-0x0000000000400000-0x0000000000C25000-memory.dmp upx behavioral1/memory/660-167-0x0000000000400000-0x0000000000C25000-memory.dmp upx behavioral1/memory/660-169-0x0000000000400000-0x0000000000C25000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
csrss.exed9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.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 -
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:
d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe -
Drops file in Windows directory 2 IoCs
Processes:
d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exedescription ioc process File opened for modification C:\Windows\rss d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe File created C:\Windows\rss\csrss.exe d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.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 3968 schtasks.exe 3608 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.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" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.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" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.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" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exed9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exeinjector.execsrss.exepid process 2564 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe 2564 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe 1700 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe 1700 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe 1700 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe 1700 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe 1700 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe 1700 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe 1700 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe 1700 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe 1700 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe 1700 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 736 csrss.exe 736 csrss.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 736 csrss.exe 736 csrss.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe 4972 injector.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.execsrss.exedescription pid process Token: SeDebugPrivilege 2564 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Token: SeImpersonatePrivilege 2564 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe Token: SeSystemEnvironmentPrivilege 736 csrss.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.execmd.execsrss.exedescription pid process target process PID 1700 wrote to memory of 4564 1700 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe cmd.exe PID 1700 wrote to memory of 4564 1700 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe cmd.exe PID 4564 wrote to memory of 1036 4564 cmd.exe netsh.exe PID 4564 wrote to memory of 1036 4564 cmd.exe netsh.exe PID 1700 wrote to memory of 736 1700 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe csrss.exe PID 1700 wrote to memory of 736 1700 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe csrss.exe PID 1700 wrote to memory of 736 1700 d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe csrss.exe PID 736 wrote to memory of 4972 736 csrss.exe injector.exe PID 736 wrote to memory of 4972 736 csrss.exe injector.exe PID 736 wrote to memory of 660 736 csrss.exe f801950a962ddba14caaa44bf084b55c.exe PID 736 wrote to memory of 660 736 csrss.exe f801950a962ddba14caaa44bf084b55c.exe PID 736 wrote to memory of 660 736 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\d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe"C:\Users\Admin\AppData\Local\Temp\d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2564 -
C:\Users\Admin\AppData\Local\Temp\d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.exe"C:\Users\Admin\AppData\Local\Temp\d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0.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:1700 -
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:4564 -
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:1036 -
C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:736 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3968 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3940
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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:4972 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3608 -
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exeC:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe4⤵
- Executes dropped EXE
PID:660 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn "csrss" /f5⤵PID:2872
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn "ScheduledUpdate" /f5⤵PID:3088
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\NtQuerySystemInformationHook.dllFilesize
99KB
MD509031a062610d77d685c9934318b4170
SHA1880f744184e7774f3d14c1bb857e21cc7fe89a6d
SHA256778bd69af403df3c4e074c31b3850d71bf0e64524bea4272a802ca9520b379dd
SHA5129a276e1f0f55d35f2bf38eb093464f7065bdd30a660e6d1c62eed5e76d1fb2201567b89d9ae65d2d89dc99b142159e36fb73be8d5e08252a975d50544a7cda27
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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
MD520d3f1186559e7362462ee32f7929020
SHA15bb4ef2f2d337a8a83cb632f279ab0cf6cd89838
SHA256d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0
SHA5120a4407a27a99ed7417898de48573f957605649eefe0a2d673681df1c9734e5bef0c2a81d9966a9eb16769a41d80dc021c9b881f0609c7a0da662a67d9919414d
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C:\Windows\rss\csrss.exeFilesize
4.1MB
MD520d3f1186559e7362462ee32f7929020
SHA15bb4ef2f2d337a8a83cb632f279ab0cf6cd89838
SHA256d9062a50e8aa47d34ede7c724359ccf8fb0e5cd068fdffd3cfa71c5e9baccad0
SHA5120a4407a27a99ed7417898de48573f957605649eefe0a2d673681df1c9734e5bef0c2a81d9966a9eb16769a41d80dc021c9b881f0609c7a0da662a67d9919414d
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memory/660-169-0x0000000000400000-0x0000000000C25000-memory.dmpFilesize
8.1MB
-
memory/660-167-0x0000000000400000-0x0000000000C25000-memory.dmpFilesize
8.1MB
-
memory/660-165-0x0000000000400000-0x0000000000C25000-memory.dmpFilesize
8.1MB
-
memory/736-153-0x0000000000400000-0x0000000002F3D000-memory.dmpFilesize
43.2MB
-
memory/736-158-0x0000000000400000-0x0000000002F3D000-memory.dmpFilesize
43.2MB
-
memory/736-148-0x0000000000400000-0x0000000002F3D000-memory.dmpFilesize
43.2MB
-
memory/736-154-0x0000000000400000-0x0000000002F3D000-memory.dmpFilesize
43.2MB
-
memory/736-155-0x0000000000400000-0x0000000002F3D000-memory.dmpFilesize
43.2MB
-
memory/736-156-0x0000000000400000-0x0000000002F3D000-memory.dmpFilesize
43.2MB
-
memory/736-157-0x0000000000400000-0x0000000002F3D000-memory.dmpFilesize
43.2MB
-
memory/736-152-0x0000000000400000-0x0000000002F3D000-memory.dmpFilesize
43.2MB
-
memory/736-159-0x0000000000400000-0x0000000002F3D000-memory.dmpFilesize
43.2MB
-
memory/736-151-0x0000000000400000-0x0000000002F3D000-memory.dmpFilesize
43.2MB
-
memory/736-150-0x0000000000400000-0x0000000002F3D000-memory.dmpFilesize
43.2MB
-
memory/736-149-0x0000000000400000-0x0000000002F3D000-memory.dmpFilesize
43.2MB
-
memory/736-166-0x0000000000400000-0x0000000002F3D000-memory.dmpFilesize
43.2MB
-
memory/1700-140-0x0000000000400000-0x0000000002F3D000-memory.dmpFilesize
43.2MB
-
memory/2564-134-0x0000000005440000-0x0000000005CB7000-memory.dmpFilesize
8.5MB
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memory/2564-135-0x0000000000400000-0x0000000002F3D000-memory.dmpFilesize
43.2MB