Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
28-03-2023 07:31
Static task
static1
General
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Target
9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe
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Size
4.1MB
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MD5
bd043b9a2cedc5a6a80581f040dbdb7f
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SHA1
7671a081ae6662a4e3a308366bb83318cc359b31
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SHA256
9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453
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SHA512
57b527413aa794667881c2652620a43c2b6ef02adc0340f655fbfae7e727eef4de8c14a0e02eea979da3811796ece786a433c3bd8ce7e0796ca4386c37b5f092
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SSDEEP
98304:2ojG5wSVpA06RFL0CxbWXYdsOzVuQDRCp3gQG6pq+k5FuIu:7SUHW0HBCZgm7Ovu
Malware Config
Signatures
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Glupteba payload 17 IoCs
Processes:
resource yara_rule behavioral1/memory/4400-134-0x0000000005220000-0x0000000005A97000-memory.dmp family_glupteba behavioral1/memory/4400-135-0x0000000000400000-0x0000000002F48000-memory.dmp family_glupteba behavioral1/memory/5052-140-0x0000000000400000-0x0000000002F48000-memory.dmp family_glupteba behavioral1/memory/1356-148-0x0000000000400000-0x0000000002F48000-memory.dmp family_glupteba behavioral1/memory/1356-149-0x0000000000400000-0x0000000002F48000-memory.dmp family_glupteba behavioral1/memory/1356-150-0x0000000000400000-0x0000000002F48000-memory.dmp family_glupteba behavioral1/memory/1356-151-0x0000000000400000-0x0000000002F48000-memory.dmp family_glupteba behavioral1/memory/1356-152-0x0000000000400000-0x0000000002F48000-memory.dmp family_glupteba behavioral1/memory/1356-153-0x0000000000400000-0x0000000002F48000-memory.dmp family_glupteba behavioral1/memory/1356-154-0x0000000000400000-0x0000000002F48000-memory.dmp family_glupteba behavioral1/memory/1356-155-0x0000000000400000-0x0000000002F48000-memory.dmp family_glupteba behavioral1/memory/1356-156-0x0000000000400000-0x0000000002F48000-memory.dmp family_glupteba behavioral1/memory/1356-157-0x0000000000400000-0x0000000002F48000-memory.dmp family_glupteba behavioral1/memory/1356-158-0x0000000000400000-0x0000000002F48000-memory.dmp family_glupteba behavioral1/memory/1356-159-0x0000000000400000-0x0000000002F48000-memory.dmp family_glupteba behavioral1/memory/1356-160-0x0000000000400000-0x0000000002F48000-memory.dmp family_glupteba behavioral1/memory/1356-161-0x0000000000400000-0x0000000002F48000-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 1356 csrss.exe 2772 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\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:
9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe -
Drops file in Windows directory 2 IoCs
Processes:
9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exedescription ioc process File created C:\Windows\rss\csrss.exe 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe File opened for modification C:\Windows\rss 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.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 3684 schtasks.exe 2628 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.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" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.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" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.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,-151 = "Central America Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.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" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exeinjector.execsrss.exepid process 4400 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe 4400 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe 5052 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe 5052 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe 5052 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe 5052 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe 5052 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe 5052 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe 5052 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe 5052 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe 5052 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe 5052 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 1356 csrss.exe 1356 csrss.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 1356 csrss.exe 1356 csrss.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe 2772 injector.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.execsrss.exedescription pid process Token: SeDebugPrivilege 4400 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Token: SeImpersonatePrivilege 4400 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe Token: SeSystemEnvironmentPrivilege 1356 csrss.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.execmd.execsrss.exedescription pid process target process PID 5052 wrote to memory of 4012 5052 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe cmd.exe PID 5052 wrote to memory of 4012 5052 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe cmd.exe PID 4012 wrote to memory of 2508 4012 cmd.exe netsh.exe PID 4012 wrote to memory of 2508 4012 cmd.exe netsh.exe PID 5052 wrote to memory of 1356 5052 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe csrss.exe PID 5052 wrote to memory of 1356 5052 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe csrss.exe PID 5052 wrote to memory of 1356 5052 9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe csrss.exe PID 1356 wrote to memory of 2772 1356 csrss.exe injector.exe PID 1356 wrote to memory of 2772 1356 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\9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe"C:\Users\Admin\AppData\Local\Temp\9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.exe"C:\Users\Admin\AppData\Local\Temp\9ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453.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
MD5bd043b9a2cedc5a6a80581f040dbdb7f
SHA17671a081ae6662a4e3a308366bb83318cc359b31
SHA2569ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453
SHA51257b527413aa794667881c2652620a43c2b6ef02adc0340f655fbfae7e727eef4de8c14a0e02eea979da3811796ece786a433c3bd8ce7e0796ca4386c37b5f092
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C:\Windows\rss\csrss.exeFilesize
4.1MB
MD5bd043b9a2cedc5a6a80581f040dbdb7f
SHA17671a081ae6662a4e3a308366bb83318cc359b31
SHA2569ab922afeb5ce1db433a216c47c2425a11d32cb36e9c213e969d86d8a3e87453
SHA51257b527413aa794667881c2652620a43c2b6ef02adc0340f655fbfae7e727eef4de8c14a0e02eea979da3811796ece786a433c3bd8ce7e0796ca4386c37b5f092
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memory/1356-151-0x0000000000400000-0x0000000002F48000-memory.dmpFilesize
43.3MB
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memory/1356-154-0x0000000000400000-0x0000000002F48000-memory.dmpFilesize
43.3MB
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memory/1356-161-0x0000000000400000-0x0000000002F48000-memory.dmpFilesize
43.3MB
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memory/1356-148-0x0000000000400000-0x0000000002F48000-memory.dmpFilesize
43.3MB
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memory/1356-149-0x0000000000400000-0x0000000002F48000-memory.dmpFilesize
43.3MB
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memory/1356-150-0x0000000000400000-0x0000000002F48000-memory.dmpFilesize
43.3MB
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memory/1356-160-0x0000000000400000-0x0000000002F48000-memory.dmpFilesize
43.3MB
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memory/1356-152-0x0000000000400000-0x0000000002F48000-memory.dmpFilesize
43.3MB
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memory/1356-153-0x0000000000400000-0x0000000002F48000-memory.dmpFilesize
43.3MB
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memory/1356-159-0x0000000000400000-0x0000000002F48000-memory.dmpFilesize
43.3MB
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memory/1356-155-0x0000000000400000-0x0000000002F48000-memory.dmpFilesize
43.3MB
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memory/1356-156-0x0000000000400000-0x0000000002F48000-memory.dmpFilesize
43.3MB
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memory/1356-157-0x0000000000400000-0x0000000002F48000-memory.dmpFilesize
43.3MB
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memory/1356-158-0x0000000000400000-0x0000000002F48000-memory.dmpFilesize
43.3MB
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memory/4400-134-0x0000000005220000-0x0000000005A97000-memory.dmpFilesize
8.5MB
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memory/4400-135-0x0000000000400000-0x0000000002F48000-memory.dmpFilesize
43.3MB
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memory/5052-140-0x0000000000400000-0x0000000002F48000-memory.dmpFilesize
43.3MB