Analysis
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max time kernel
150s -
max time network
148s -
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 08:20
Static task
static1
Behavioral task
behavioral1
Sample
634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe
Resource
win10v2004-20240412-en
General
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Target
634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe
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Size
4.2MB
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MD5
e5ed53e808841eaa61cda1453ba1bb9c
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SHA1
76759ba6b4cc525c40de7464d0464514ce997217
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SHA256
634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76
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SHA512
8a71f48d9731f49089ea923f48cf68517fa48e3601d9fd97ab48d12a3bdd39e0b08c43c5534bb7eb8913a4231a6646d2cc47cec979ab0a7f4abf438f77cdafc1
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SSDEEP
98304:qS8Tc81AzKVcNOUNHF6RiNP154spKvDdhObEo7QvVY0ryRAf1Tp7ORe:rEcJzF4UNHqA/dsmoVS4YAf19B
Malware Config
Signatures
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Glupteba payload 20 IoCs
Processes:
resource yara_rule behavioral2/memory/4516-2-0x0000000004170000-0x0000000004A5B000-memory.dmp family_glupteba behavioral2/memory/4516-3-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2480-52-0x0000000003F80000-0x000000000486B000-memory.dmp family_glupteba behavioral2/memory/2480-54-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4516-66-0x0000000004170000-0x0000000004A5B000-memory.dmp family_glupteba behavioral2/memory/4516-80-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2480-207-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2604-240-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2604-251-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2604-255-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2604-259-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2604-263-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2604-267-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2604-271-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2604-275-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2604-279-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2604-283-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2604-287-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2604-291-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2604-295-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 668 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 2604 csrss.exe 384 injector.exe 4740 windefender.exe 4756 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/4740-248-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4756-253-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4756-261-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\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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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 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 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 -
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:
634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe -
Drops file in Windows directory 4 IoCs
Processes:
634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.execsrss.exedescription ioc process File created C:\Windows\rss\csrss.exe 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 4408 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 4328 schtasks.exe 1812 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exewindefender.exe634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1022 = "Bangladesh Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 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,-461 = "Afghanistan Daylight Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs 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\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-221 = "Alaskan 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" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight 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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-442 = "Arabian Standard Time" windefender.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\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exepowershell.exe634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 1468 powershell.exe 1468 powershell.exe 4516 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe 4516 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe 1592 powershell.exe 1592 powershell.exe 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe 4520 powershell.exe 4520 powershell.exe 4772 powershell.exe 4772 powershell.exe 3308 powershell.exe 3308 powershell.exe 592 powershell.exe 592 powershell.exe 2632 powershell.exe 2632 powershell.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 2604 csrss.exe 2604 csrss.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 2604 csrss.exe 2604 csrss.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 2604 csrss.exe 2604 csrss.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe 384 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 1468 powershell.exe Token: SeDebugPrivilege 4516 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Token: SeImpersonatePrivilege 4516 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe Token: SeDebugPrivilege 1592 powershell.exe Token: SeDebugPrivilege 4520 powershell.exe Token: SeDebugPrivilege 4772 powershell.exe Token: SeDebugPrivilege 3308 powershell.exe Token: SeDebugPrivilege 592 powershell.exe Token: SeDebugPrivilege 2632 powershell.exe Token: SeSystemEnvironmentPrivilege 2604 csrss.exe Token: SeSecurityPrivilege 4408 sc.exe Token: SeSecurityPrivilege 4408 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4516 wrote to memory of 1468 4516 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe powershell.exe PID 4516 wrote to memory of 1468 4516 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe powershell.exe PID 4516 wrote to memory of 1468 4516 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe powershell.exe PID 2480 wrote to memory of 1592 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe powershell.exe PID 2480 wrote to memory of 1592 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe powershell.exe PID 2480 wrote to memory of 1592 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe powershell.exe PID 2480 wrote to memory of 1400 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe cmd.exe PID 2480 wrote to memory of 1400 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe cmd.exe PID 1400 wrote to memory of 668 1400 cmd.exe netsh.exe PID 1400 wrote to memory of 668 1400 cmd.exe netsh.exe PID 2480 wrote to memory of 4520 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe powershell.exe PID 2480 wrote to memory of 4520 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe powershell.exe PID 2480 wrote to memory of 4520 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe powershell.exe PID 2480 wrote to memory of 4772 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe powershell.exe PID 2480 wrote to memory of 4772 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe powershell.exe PID 2480 wrote to memory of 4772 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe powershell.exe PID 2480 wrote to memory of 2604 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe csrss.exe PID 2480 wrote to memory of 2604 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe csrss.exe PID 2480 wrote to memory of 2604 2480 634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe csrss.exe PID 2604 wrote to memory of 3308 2604 csrss.exe powershell.exe PID 2604 wrote to memory of 3308 2604 csrss.exe powershell.exe PID 2604 wrote to memory of 3308 2604 csrss.exe powershell.exe PID 2604 wrote to memory of 592 2604 csrss.exe powershell.exe PID 2604 wrote to memory of 592 2604 csrss.exe powershell.exe PID 2604 wrote to memory of 592 2604 csrss.exe powershell.exe PID 2604 wrote to memory of 2632 2604 csrss.exe powershell.exe PID 2604 wrote to memory of 2632 2604 csrss.exe powershell.exe PID 2604 wrote to memory of 2632 2604 csrss.exe powershell.exe PID 2604 wrote to memory of 384 2604 csrss.exe injector.exe PID 2604 wrote to memory of 384 2604 csrss.exe injector.exe PID 4740 wrote to memory of 8 4740 windefender.exe cmd.exe PID 4740 wrote to memory of 8 4740 windefender.exe cmd.exe PID 4740 wrote to memory of 8 4740 windefender.exe cmd.exe PID 8 wrote to memory of 4408 8 cmd.exe sc.exe PID 8 wrote to memory of 4408 8 cmd.exe sc.exe PID 8 wrote to memory of 4408 8 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\634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe"C:\Users\Admin\AppData\Local\Temp\634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4516 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1468
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C:\Users\Admin\AppData\Local\Temp\634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.exe"C:\Users\Admin\AppData\Local\Temp\634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76.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:2480 -
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:1592
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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:1400 -
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:668
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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:4520
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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:4772
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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:2604 -
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:3308
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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:4328
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1472
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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:592
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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:2632
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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:384
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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:1812
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4740 -
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:8 -
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:4408
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4756
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a1e536b0f34a093f2091c6c5c8f2bd5f
SHA1c1b8f8c1d7d3f42ae010691afb8a9b120a469246
SHA256b4e37d71a04a76308ef382487e4873e0e01afd3be784b92530b23258293d2553
SHA512acbf18dd9cb416f91fbfd325d87e29937df456a229b843d8d9fa5f35cfdec834e4669384a7e53c7006c2bee26f26ca737ff3ce0ac37165040e1dd3417d66eb39
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51d4d4bebc156bd5e8498739c068c0f28
SHA100857b0ffc315ba8ecefbffedb2911815d7e31a8
SHA25646d73de157e6212471a9760054f254e67963412549873b3ed25ba9e2d36d50db
SHA51293f8c1f83f5df0602646251f95ac0b15fc513e6c6785ed307002d86b9357fa7500e9432db628447fa3dba354dddc53dd579d1663f6ced8147485037dc85be294
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e3bb7119756cff6f7d337b6bdf8c9864
SHA1cbc0f939737835935d8d4c28d3bf167b246c31f8
SHA256d31d730bd90e06cdf7f199fc29c0ec79a9bb049fdc99cd05d3a6680f705afd6a
SHA5128bebf58940d2dba5d675e6c28709df29d5bce585a39af3d0be1e8e09b4ed8bf3df1b39b384e8db540834c4bca25ed4950c1334b1c9e054e74868a52e63981fcb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b79513ea5a13a175fbfb5d29c9fd056b
SHA18b2586882c44a78b19eb6a34737a6d4c807d4198
SHA2561ca51a1c91ecdfb1fa2e5f751d2d14ff5e5f95199b1df6d15f3af2f50de2d4c9
SHA512b29b8032d5a30074829dddd19189bce3176c61dca279542520a094f6ffc0a9758c7b7b559ee0c99840362d688ca88456ed83cc1ac065e018c4bbda8e082e9160
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD577f7301d770ffea2d3305e556de4761e
SHA1e79a6b1218bff07418711c10823655800a84138e
SHA256b1fa006b055f297b91778535c93438ef09e9be12f30cc506947057486d6602cc
SHA5121af7895a0898688ac9b726053ed920f6cdc0a8570e72a31b57461cdc3ead3aa85aae8c8b78eacefd4799ea83f91a30a0fa6ac0a2d6d96a424d5ec15b30b18846
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Filesize
4.2MB
MD5e5ed53e808841eaa61cda1453ba1bb9c
SHA176759ba6b4cc525c40de7464d0464514ce997217
SHA256634f517c5ff3efa8859c46ffbabdd9bf2f7da55f179dffcc683535c6025b4a76
SHA5128a71f48d9731f49089ea923f48cf68517fa48e3601d9fd97ab48d12a3bdd39e0b08c43c5534bb7eb8913a4231a6646d2cc47cec979ab0a7f4abf438f77cdafc1
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec