Analysis
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max time kernel
150s -
max time network
138s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
20-04-2024 20:43
Static task
static1
Behavioral task
behavioral1
Sample
cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe
Resource
win10v2004-20240412-en
General
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Target
cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe
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Size
4.2MB
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MD5
c162490db3af8ac5ab44ebedbc0fb60b
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SHA1
8f6084b1eac1de4461e0a1ab64aa8369b797dd95
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SHA256
cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567
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SHA512
db377e49261f8ed567034aed2b7412917610122ad9b0938266b86ba5bbcb1086fb65d645c507d1419f36f51ae227f4eeea679a66cd8a8737883744db6ca48462
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SSDEEP
98304:DVFRqPMdPA984H0WMAw6acMgLNchhd+W2lPIIo31xn1vrLR/3Lz3:5FYkS+E0uawLNQ+/9Bo7/n
Malware Config
Signatures
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Glupteba payload 20 IoCs
Processes:
resource yara_rule behavioral2/memory/4544-2-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/4544-3-0x00000000041B0000-0x0000000004A9B000-memory.dmp family_glupteba behavioral2/memory/2628-52-0x0000000003FD0000-0x00000000048BB000-memory.dmp family_glupteba behavioral2/memory/2628-54-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/4544-60-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/2628-136-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/2628-145-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/328-237-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/328-248-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/328-252-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/328-255-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/328-260-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/328-264-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/328-268-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/328-272-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/328-276-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/328-280-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/328-284-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/328-288-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/328-292-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 1136 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 328 csrss.exe 4628 injector.exe 4192 windefender.exe 3692 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/4192-245-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3692-250-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3692-258-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3692-270-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
csrss.execbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2718508534-2116753757-2794822388-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-2718508534-2116753757-2794822388-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.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 -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.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:
cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe -
Drops file in Windows directory 4 IoCs
Processes:
cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.execsrss.exedescription ioc process File opened for modification C:\Windows\rss cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe File created C:\Windows\rss\csrss.exe cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 3808 sc.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 5104 schtasks.exe 3556 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.execbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-572 = "China Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1502 = "Turkey Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-82 = "Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-362 = "GTB Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.execbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exepowershell.execbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 3128 powershell.exe 3128 powershell.exe 4544 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe 4544 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe 1532 powershell.exe 1532 powershell.exe 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe 4388 powershell.exe 4388 powershell.exe 3772 powershell.exe 3772 powershell.exe 4936 powershell.exe 4936 powershell.exe 4872 powershell.exe 4872 powershell.exe 672 powershell.exe 672 powershell.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 328 csrss.exe 328 csrss.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 328 csrss.exe 328 csrss.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 328 csrss.exe 328 csrss.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.execbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 3128 powershell.exe Token: SeDebugPrivilege 4544 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Token: SeImpersonatePrivilege 4544 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe Token: SeDebugPrivilege 1532 powershell.exe Token: SeDebugPrivilege 4388 powershell.exe Token: SeDebugPrivilege 3772 powershell.exe Token: SeDebugPrivilege 4936 powershell.exe Token: SeDebugPrivilege 4872 powershell.exe Token: SeDebugPrivilege 672 powershell.exe Token: SeSystemEnvironmentPrivilege 328 csrss.exe Token: SeSecurityPrivilege 3808 sc.exe Token: SeSecurityPrivilege 3808 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.execbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4544 wrote to memory of 3128 4544 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe powershell.exe PID 4544 wrote to memory of 3128 4544 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe powershell.exe PID 4544 wrote to memory of 3128 4544 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe powershell.exe PID 2628 wrote to memory of 1532 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe powershell.exe PID 2628 wrote to memory of 1532 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe powershell.exe PID 2628 wrote to memory of 1532 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe powershell.exe PID 2628 wrote to memory of 3096 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe cmd.exe PID 2628 wrote to memory of 3096 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe cmd.exe PID 3096 wrote to memory of 1136 3096 cmd.exe netsh.exe PID 3096 wrote to memory of 1136 3096 cmd.exe netsh.exe PID 2628 wrote to memory of 4388 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe powershell.exe PID 2628 wrote to memory of 4388 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe powershell.exe PID 2628 wrote to memory of 4388 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe powershell.exe PID 2628 wrote to memory of 3772 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe powershell.exe PID 2628 wrote to memory of 3772 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe powershell.exe PID 2628 wrote to memory of 3772 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe powershell.exe PID 2628 wrote to memory of 328 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe csrss.exe PID 2628 wrote to memory of 328 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe csrss.exe PID 2628 wrote to memory of 328 2628 cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe csrss.exe PID 328 wrote to memory of 4936 328 csrss.exe powershell.exe PID 328 wrote to memory of 4936 328 csrss.exe powershell.exe PID 328 wrote to memory of 4936 328 csrss.exe powershell.exe PID 328 wrote to memory of 4872 328 csrss.exe powershell.exe PID 328 wrote to memory of 4872 328 csrss.exe powershell.exe PID 328 wrote to memory of 4872 328 csrss.exe powershell.exe PID 328 wrote to memory of 672 328 csrss.exe powershell.exe PID 328 wrote to memory of 672 328 csrss.exe powershell.exe PID 328 wrote to memory of 672 328 csrss.exe powershell.exe PID 328 wrote to memory of 4628 328 csrss.exe injector.exe PID 328 wrote to memory of 4628 328 csrss.exe injector.exe PID 4192 wrote to memory of 1940 4192 windefender.exe cmd.exe PID 4192 wrote to memory of 1940 4192 windefender.exe cmd.exe PID 4192 wrote to memory of 1940 4192 windefender.exe cmd.exe PID 1940 wrote to memory of 3808 1940 cmd.exe sc.exe PID 1940 wrote to memory of 3808 1940 cmd.exe sc.exe PID 1940 wrote to memory of 3808 1940 cmd.exe sc.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\cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe"C:\Users\Admin\AppData\Local\Temp\cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4544 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3128
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C:\Users\Admin\AppData\Local\Temp\cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.exe"C:\Users\Admin\AppData\Local\Temp\cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567.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:2628 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1532
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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
PID:3096 -
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:1136
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4388
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3772
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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.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:328 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4936
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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)
PID:5104
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1392
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4872
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:672
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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:4628
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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)
PID:3556
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4192 -
C:\Windows\SysWOW64\cmd.execmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)5⤵
- Suspicious use of WriteProcessMemory
PID:1940 -
C:\Windows\SysWOW64\sc.exesc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)6⤵
- Launches sc.exe
- Suspicious use of AdjustPrivilegeToken
PID:3808
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3692
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a96f464375a41fbd9225c1eb41bfb78b
SHA1156d8830c6e3f4dfa944fa536a68779a50f63798
SHA256f61a788b23c65a5818abef9f8a07d789b0d8d950ab6536402f8170309d8c7ffe
SHA512d6edb4b081112c82416e065c2cc56ddc9888fdf27bcef93b8e0f8a0bfae44ba9291cc4095075c2b656d16fc419ed7c6a1c94a764934b1438006993c074a0a0ec
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD500de15c371fa3302e1b7f896019308b0
SHA1df9bd21a6993b7504d27e45beb592d6860cde487
SHA256c0a3c2232739e8ca1600eab7e5fc78d362ab69fec660c262a7dce2dcaa21ec6a
SHA51261d86a98aa483eeada7db1c877e4e902b0db5ab01e1d24bf57316585011d62d8c4fa6a59d4bf73a32fc5325950720de38e7f84f1126fe519371176570c2b7275
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD545f275df770b6ee726b332489c153b67
SHA10a4ce9c0d011e768c09a1b9e717a382f3b4e756f
SHA2560b8467c75002906ac77a58b10bd7bbb772f3a7e3479047787853f64573c7b7fd
SHA51200248df843c917e2f6a913b3dcdd57b52709d4f7c33a37356ee793533eb9a55f96751ef39ba117e47010b09d67d3cf0ccd7835c1eb080f0332bd915fb2af2067
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57be4bf143edd0133bbe7fee2e2385850
SHA1cbeb3abce3d35db01b02a24486650defb769e7ba
SHA2569e507ae16c40466accb961bc412923cb35cbe6287fdfa3fae2431ecef4bc57f9
SHA512fb9c91fe2f4af9256ce45768c26a8127f9993499796a56473893031308d644d00027282f4afa63b24fd56bc02cd1e5f02da9ae85139ea6e097db6eea95a0783c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD599d5af606a07e5ab71d37809627560f1
SHA1a42559fd262b1e513aef155fb9354ab9bf4c2fdd
SHA256ebdd9a71e6f79f54d04109b7d42ffa78a9ca39c7c8a4a5bcd0cf8aacbc9c8d76
SHA5125edc7e6818957c1e2d30391675b3d2ab7c20992718421b7e1c6e459c0e9d86be2180bb8f8b931a3409aa0012dc393b5f5fc180e720249c541a877f563099a236
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Filesize
4.2MB
MD5c162490db3af8ac5ab44ebedbc0fb60b
SHA18f6084b1eac1de4461e0a1ab64aa8369b797dd95
SHA256cbb56b9ac3abe7fb76c5b36135295605a87fa62685ed6da528a0dbe593393567
SHA512db377e49261f8ed567034aed2b7412917610122ad9b0938266b86ba5bbcb1086fb65d645c507d1419f36f51ae227f4eeea679a66cd8a8737883744db6ca48462
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec