Analysis
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max time kernel
149s -
max time network
150s -
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 08:23
Static task
static1
Behavioral task
behavioral1
Sample
d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe
Resource
win10v2004-20240412-en
General
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Target
d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe
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Size
4.2MB
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MD5
db5386b0017bea7240c4b49fdceb96ee
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SHA1
4588ec3be8b7440c7409db4f30aca4c59c1c942e
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SHA256
d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875
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SHA512
cefdbc037fc87487f177ef106aa3ab1a77f2ee8cfa73de922aeb3e4cf6a506e1801dea38e63b3010b4c8d5cf2047a97f1b9c84642df00a483023bca44b9086c2
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SSDEEP
98304:6S8Tc81AzKVcNOUNHF6RiNP154spKvDdhObEo7QvVY0ryRAf1Tp7ORb:7EcJzF4UNHqA/dsmoVS4YAf198
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/4416-2-0x0000000004170000-0x0000000004A5B000-memory.dmp family_glupteba behavioral2/memory/4416-3-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/832-51-0x0000000004040000-0x000000000492B000-memory.dmp family_glupteba behavioral2/memory/832-53-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4416-78-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/832-174-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4612-239-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4612-250-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4612-253-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4612-257-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4612-261-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4612-267-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4612-270-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4612-274-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4612-278-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4612-281-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4612-285-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4612-289-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4612-295-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3540 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 4612 csrss.exe 3096 injector.exe 4164 windefender.exe 1940 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/4164-249-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1940-254-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1940-262-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\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\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 File created 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:
d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe -
Drops file in Windows directory 4 IoCs
Processes:
d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.execsrss.exedescription ioc process File opened for modification C:\Windows\rss d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe File created C:\Windows\rss\csrss.exe d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.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 1120 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 4796 schtasks.exe 3356 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exed5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exepowershell.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exedescription ioc process 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\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs 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,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.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,-1872 = "Russia TZ 7 Standard Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\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,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-441 = "Arabian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates 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\26\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-132 = "US Eastern Standard 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\26\52C64B7E\@tzres.dll,-362 = "GTB Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.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,-391 = "Arab Daylight Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.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\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-351 = "FLE Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-372 = "Jerusalem Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.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,-772 = "Montevideo Standard Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.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,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs 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\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.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\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 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" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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\@tzres.dll,-1932 = "Russia TZ 11 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-631 = "Tokyo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exed5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exepowershell.exed5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4292 powershell.exe 4292 powershell.exe 4416 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe 4416 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe 580 powershell.exe 580 powershell.exe 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe 2008 powershell.exe 2008 powershell.exe 4668 powershell.exe 4668 powershell.exe 3304 powershell.exe 3304 powershell.exe 2712 powershell.exe 2712 powershell.exe 4812 powershell.exe 4812 powershell.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 4612 csrss.exe 4612 csrss.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 4612 csrss.exe 4612 csrss.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 4612 csrss.exe 4612 csrss.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe 3096 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exed5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 4292 powershell.exe Token: SeDebugPrivilege 4416 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe Token: SeImpersonatePrivilege 4416 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe Token: SeDebugPrivilege 580 powershell.exe Token: SeDebugPrivilege 2008 powershell.exe Token: SeDebugPrivilege 4668 powershell.exe Token: SeDebugPrivilege 3304 powershell.exe Token: SeDebugPrivilege 2712 powershell.exe Token: SeDebugPrivilege 4812 powershell.exe Token: SeSystemEnvironmentPrivilege 4612 csrss.exe Token: SeSecurityPrivilege 1120 sc.exe Token: SeSecurityPrivilege 1120 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exed5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4416 wrote to memory of 4292 4416 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe powershell.exe PID 4416 wrote to memory of 4292 4416 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe powershell.exe PID 4416 wrote to memory of 4292 4416 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe powershell.exe PID 832 wrote to memory of 580 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe powershell.exe PID 832 wrote to memory of 580 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe powershell.exe PID 832 wrote to memory of 580 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe powershell.exe PID 832 wrote to memory of 4972 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe cmd.exe PID 832 wrote to memory of 4972 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe cmd.exe PID 4972 wrote to memory of 3540 4972 cmd.exe netsh.exe PID 4972 wrote to memory of 3540 4972 cmd.exe netsh.exe PID 832 wrote to memory of 2008 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe powershell.exe PID 832 wrote to memory of 2008 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe powershell.exe PID 832 wrote to memory of 2008 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe powershell.exe PID 832 wrote to memory of 4668 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe powershell.exe PID 832 wrote to memory of 4668 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe powershell.exe PID 832 wrote to memory of 4668 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe powershell.exe PID 832 wrote to memory of 4612 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe csrss.exe PID 832 wrote to memory of 4612 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe csrss.exe PID 832 wrote to memory of 4612 832 d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe csrss.exe PID 4612 wrote to memory of 3304 4612 csrss.exe powershell.exe PID 4612 wrote to memory of 3304 4612 csrss.exe powershell.exe PID 4612 wrote to memory of 3304 4612 csrss.exe powershell.exe PID 4612 wrote to memory of 2712 4612 csrss.exe powershell.exe PID 4612 wrote to memory of 2712 4612 csrss.exe powershell.exe PID 4612 wrote to memory of 2712 4612 csrss.exe powershell.exe PID 4612 wrote to memory of 4812 4612 csrss.exe powershell.exe PID 4612 wrote to memory of 4812 4612 csrss.exe powershell.exe PID 4612 wrote to memory of 4812 4612 csrss.exe powershell.exe PID 4612 wrote to memory of 3096 4612 csrss.exe injector.exe PID 4612 wrote to memory of 3096 4612 csrss.exe injector.exe PID 4164 wrote to memory of 4828 4164 windefender.exe cmd.exe PID 4164 wrote to memory of 4828 4164 windefender.exe cmd.exe PID 4164 wrote to memory of 4828 4164 windefender.exe cmd.exe PID 4828 wrote to memory of 1120 4828 cmd.exe sc.exe PID 4828 wrote to memory of 1120 4828 cmd.exe sc.exe PID 4828 wrote to memory of 1120 4828 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\d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe"C:\Users\Admin\AppData\Local\Temp\d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4416 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4292
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C:\Users\Admin\AppData\Local\Temp\d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.exe"C:\Users\Admin\AppData\Local\Temp\d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875.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:832 -
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:580
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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:4972 -
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:3540
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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:2008
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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:4668
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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:4612 -
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:3304
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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:4796
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1324
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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:2712
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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:4812
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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:3096
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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:3356
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4164 -
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:4828 -
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:1120
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1940
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
MD5a9556f8b96f52492d77da88e301f0e4e
SHA11eb515595f82e95cb10f06882b2e88832c70091a
SHA25678b454f1e17e27954bc7ae8c4b949d7df1e48ee5d569ce4193628d09ba8f7d4c
SHA5121f7a9804108a629ddf9b49a884c365d71997c3fe986acf07ae522f5ef7bad34f2616a89ddc8e4028dea6d9e2f20029323dd59450d93bb6618e0506c4bca211c7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD576f07430c032d0b6d3f95b3cc7c1271a
SHA17acc432ffba82e3c878e8925c9dfb28e04bcf0a3
SHA256725100ac361d30c023c17336857d30e4ba2045849f1cd8ee8f867934406c1e06
SHA512e83c0a447aa98296c5518941da1ed08df41ea96ee8e5648f75a48755fe8974f8ff90d9b6fa20a19ff523c4ed05874e35be8f9e53d9c12de570e29afb79c14e12
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD541a9633af300cf28520367d4414a30aa
SHA1604819a97062a138d30155b34cb04b9fc43914a3
SHA256134753239ee2f1701b19ed373c6fc646f9496cc60f025e9aa34a473a6bb8464b
SHA5126bc22065a2329f64f70004cc45c94cb64fa2ae4ae7b26404824df54d90826241a1a9146ca4760e45346705822b5a7772a5c91a801b5ecd14b97f9b889f862fa4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD501f049a6e9a23287161b34b5b8f683d3
SHA1f34747ee40d34ea175a0b58a82a9a6af9f44d938
SHA2562fac4d5ce9d4dbf549caeceb8039cb5ac6eb534e5ebce4ab15a7fe7741df369f
SHA512dea13b43fb81b79175d3632c376b7e3a197ab26c1d7f5036f5f77ea47e41e9dc31b5dc436455307ea4434f51b4727ff86729af957f2584dcb204c9cc0a78978e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bb05718816eaeb8265531ffb980552bd
SHA1340529610045e29645414797db53a4656dcc6711
SHA256c0108ce246a24a4b5ea0ce9e35bbea0cbc061698a757489c23cd043f4d593f79
SHA512a414a559f55526d2619b2d844e2fff4f4c74ce87f95c23ed1ee4896aab861e3a846e26e2193fdd4fad3a1f366ca7d7e4b193e87814d0e588c76301f75f8ef961
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Filesize
4.2MB
MD5db5386b0017bea7240c4b49fdceb96ee
SHA14588ec3be8b7440c7409db4f30aca4c59c1c942e
SHA256d5b0cac3137a4687aeba7a8f17a22e2d925c9b9c1f1ef6426aeb5f785b82b875
SHA512cefdbc037fc87487f177ef106aa3ab1a77f2ee8cfa73de922aeb3e4cf6a506e1801dea38e63b3010b4c8d5cf2047a97f1b9c84642df00a483023bca44b9086c2
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec