Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 21:51
Static task
static1
Behavioral task
behavioral1
Sample
b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe
Resource
win10v2004-20240508-en
General
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Target
b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe
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Size
4.1MB
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MD5
f447c4d7756fa554f3d830aa62fdd6e7
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SHA1
f07117ec1e991ddf0fe0cc00b4558b3ab9ec6297
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SHA256
b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8
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SHA512
512ebbe70c6bc7eb17f86f3b7f1c885959afe3dc2e720e3f69ac614db2180fe1d023ede260241f1342f12dbaa6ee3cb82de580e1d9966fd12e93356cba363f5e
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SSDEEP
98304:UX33DbWGkLHuFK+TwQmBC6reQ4TTNXYvI8KgvjrB0rf:UXPWAwQyCdJYw8Kggf
Malware Config
Signatures
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Glupteba payload 20 IoCs
Processes:
resource yara_rule behavioral1/memory/4872-2-0x0000000004970000-0x000000000525B000-memory.dmp family_glupteba behavioral1/memory/4872-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4872-81-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4872-105-0x0000000004970000-0x000000000525B000-memory.dmp family_glupteba behavioral1/memory/3352-129-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3352-136-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4872-159-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4572-211-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4572-228-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4572-229-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4572-232-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4572-235-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4572-239-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4572-241-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4572-244-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4572-247-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4572-251-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4572-253-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4572-256-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4572-259-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 1276 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 4572 csrss.exe 2460 injector.exe 3772 windefender.exe 2036 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral1/memory/3772-221-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2036-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3772-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2036-230-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2036-236-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\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 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:
b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe -
Drops file in Windows directory 4 IoCs
Processes:
b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.execsrss.exedescription ioc process File opened for modification C:\Windows\rss b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe File created C:\Windows\rss\csrss.exe b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.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 3512 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 2592 powershell.exe 1508 powershell.exe 4052 powershell.exe 788 powershell.exe 2008 powershell.exe 3268 powershell.exe 2652 powershell.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 1780 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.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\2a\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-82 = "Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1022 = "Bangladesh Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-51 = "Greenland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeb11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exepowershell.exeb11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 1508 powershell.exe 1508 powershell.exe 4872 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe 4872 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe 4052 powershell.exe 4052 powershell.exe 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe 788 powershell.exe 788 powershell.exe 2008 powershell.exe 2008 powershell.exe 3268 powershell.exe 3268 powershell.exe 2652 powershell.exe 2652 powershell.exe 2592 powershell.exe 2592 powershell.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 4572 csrss.exe 4572 csrss.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 4572 csrss.exe 4572 csrss.exe 2460 injector.exe 2460 injector.exe 4572 csrss.exe 4572 csrss.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe 2460 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exeb11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 1508 powershell.exe Token: SeDebugPrivilege 4872 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Token: SeImpersonatePrivilege 4872 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe Token: SeDebugPrivilege 4052 powershell.exe Token: SeDebugPrivilege 788 powershell.exe Token: SeDebugPrivilege 2008 powershell.exe Token: SeDebugPrivilege 3268 powershell.exe Token: SeDebugPrivilege 2652 powershell.exe Token: SeDebugPrivilege 2592 powershell.exe Token: SeSystemEnvironmentPrivilege 4572 csrss.exe Token: SeSecurityPrivilege 3512 sc.exe Token: SeSecurityPrivilege 3512 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exeb11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4872 wrote to memory of 1508 4872 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe powershell.exe PID 4872 wrote to memory of 1508 4872 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe powershell.exe PID 4872 wrote to memory of 1508 4872 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe powershell.exe PID 3352 wrote to memory of 4052 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe powershell.exe PID 3352 wrote to memory of 4052 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe powershell.exe PID 3352 wrote to memory of 4052 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe powershell.exe PID 3352 wrote to memory of 5016 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe cmd.exe PID 3352 wrote to memory of 5016 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe cmd.exe PID 5016 wrote to memory of 1276 5016 cmd.exe netsh.exe PID 5016 wrote to memory of 1276 5016 cmd.exe netsh.exe PID 3352 wrote to memory of 788 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe powershell.exe PID 3352 wrote to memory of 788 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe powershell.exe PID 3352 wrote to memory of 788 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe powershell.exe PID 3352 wrote to memory of 2008 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe powershell.exe PID 3352 wrote to memory of 2008 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe powershell.exe PID 3352 wrote to memory of 2008 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe powershell.exe PID 3352 wrote to memory of 4572 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe csrss.exe PID 3352 wrote to memory of 4572 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe csrss.exe PID 3352 wrote to memory of 4572 3352 b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe csrss.exe PID 4572 wrote to memory of 3268 4572 csrss.exe powershell.exe PID 4572 wrote to memory of 3268 4572 csrss.exe powershell.exe PID 4572 wrote to memory of 3268 4572 csrss.exe powershell.exe PID 4572 wrote to memory of 2652 4572 csrss.exe powershell.exe PID 4572 wrote to memory of 2652 4572 csrss.exe powershell.exe PID 4572 wrote to memory of 2652 4572 csrss.exe powershell.exe PID 4572 wrote to memory of 2592 4572 csrss.exe powershell.exe PID 4572 wrote to memory of 2592 4572 csrss.exe powershell.exe PID 4572 wrote to memory of 2592 4572 csrss.exe powershell.exe PID 4572 wrote to memory of 2460 4572 csrss.exe injector.exe PID 4572 wrote to memory of 2460 4572 csrss.exe injector.exe PID 3772 wrote to memory of 4116 3772 windefender.exe cmd.exe PID 3772 wrote to memory of 4116 3772 windefender.exe cmd.exe PID 3772 wrote to memory of 4116 3772 windefender.exe cmd.exe PID 4116 wrote to memory of 3512 4116 cmd.exe sc.exe PID 4116 wrote to memory of 3512 4116 cmd.exe sc.exe PID 4116 wrote to memory of 3512 4116 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\b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe"C:\Users\Admin\AppData\Local\Temp\b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4872 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1508 -
C:\Users\Admin\AppData\Local\Temp\b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.exe"C:\Users\Admin\AppData\Local\Temp\b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8.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:3352 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4052 -
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:5016 -
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:1276 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:788 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2008 -
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:4572 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3268 -
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 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2188
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2652 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2592 -
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:2460 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:1780 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3772 -
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:4116 -
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:3512
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2036
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a34754b5d0b66729510bf2bf15838a0d
SHA1df1cfb47ffd2a6f1a80de8d8ce0526cfa9ab456e
SHA256c4c5c88cd823d726310bb5c5f094347edae1f8267f880b5957ae1bbb227354dc
SHA512d8895ca25a04c6e77c93f09285a60a5353f3516e8279c127e8eff7bd22093ff0c1c41f85f528864d11cafe2c0be115c782bbe3cb0dd2d4e926fb4483c2705d85
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD523c5664b74d331164c839ba932402a26
SHA1fd5fb21c47f2f821cbfbbe087c4b156d19736e66
SHA25663a435349539e2cb3bec17b832b830dd10d48bfad71717eef585fc76fe646029
SHA512d47cf4082499f9aaafe0c32f0bf9eda03fe07ce322d14e04ebf8ab402a23a2b9b7c9598d3b8e16a16515a9d812842e4efd4ce5e7908a62e050c0e0739270330a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f42a0f08676be9f42d08145c16280f0d
SHA12eae3d97733e8cb3ac03ce3d998fe1f034ead00d
SHA256536a27c0a38bf9095b1138b6a920e61ae4ec9931d9f6ed506570d59026d4b2dc
SHA512502af2f5fd35b85c7dd2fbbc0ab0d5030c2895fb23ad8e6704e761a65604541af4a4b8ea81c2000a8d8356012c27bae8c9971a27b23ef0a3b595ed3604d776f2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f8658195c2c912c1419e13a4f46c2094
SHA1063ae2a73dda0c775012445799975f56391a27af
SHA256e61246317caae8c51010de577d14928f02b7c4f0e83edd6afe6478ba5855f71c
SHA512cef902989a75083629ea2f8f15c1feb7e86a01f693fa050177cfd1330d515c17596a8d7716610ca9f2f5e689970c9a9eb9a693e7609057f37545b845690631ce
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56fdcb349fed2183040e7aab375425de0
SHA101ca795c294a269442afcf33e196abe8e31105ef
SHA256cde6f01fcfd1fe6b8e13536cec66a3e3c6838eca13a9e190a064bc935ec3bc0e
SHA512a7e232be3e80a2c1a56e0afb0246ece2af8845f7b5551931929d6df73ca1a6250eebbdd2e9aabb23bbceb275a478e2ea94f8892e6cd1e2ff9fb545bd37420b0a
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Filesize
4.1MB
MD5f447c4d7756fa554f3d830aa62fdd6e7
SHA1f07117ec1e991ddf0fe0cc00b4558b3ab9ec6297
SHA256b11e8b3fb9730767d6da7b99645c11e577afd21cc02fb17f1a53f60216c01bf8
SHA512512ebbe70c6bc7eb17f86f3b7f1c885959afe3dc2e720e3f69ac614db2180fe1d023ede260241f1342f12dbaa6ee3cb82de580e1d9966fd12e93356cba363f5e
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec