Analysis
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max time kernel
150s -
max time network
151s -
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 05:48
Static task
static1
Behavioral task
behavioral1
Sample
feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe
Resource
win10v2004-20240412-en
General
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Target
feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe
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Size
4.2MB
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MD5
0bb31a695e9f6820d7fcd05fa8f19e2c
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SHA1
449dc9d99a225c6820f2f8cc346ac39f73c1388a
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SHA256
feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6
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SHA512
a7596e17851ccc47182ad2774e72d775cec8bede5740fdbff7fef538f97eec4955ed85f06e4d93b0c70affd20cab4b3a692181ba4f6b2eb252f10502add1f4e3
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SSDEEP
98304:tLQYZG/dgZ86BiJBiuHE0xNIsAKMiZ9poPnhJgyiGs:tf8gKxTxapLMoPnzgL
Malware Config
Signatures
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Glupteba payload 20 IoCs
Processes:
resource yara_rule behavioral2/memory/3236-2-0x0000000004130000-0x0000000004A1B000-memory.dmp family_glupteba behavioral2/memory/3236-3-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3192-53-0x0000000003FA0000-0x000000000488B000-memory.dmp family_glupteba behavioral2/memory/3236-52-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3192-54-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3192-128-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3192-149-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3220-243-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3220-252-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3220-254-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3220-256-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3220-258-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3220-260-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3220-262-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3220-264-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3220-266-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3220-268-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3220-270-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3220-272-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3220-274-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 1716 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 3220 csrss.exe 4832 injector.exe 3212 windefender.exe 1344 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/3212-251-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1344-253-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1344-257-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\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:
feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe -
Drops file in Windows directory 4 IoCs
Processes:
csrss.exefeac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exedescription ioc process 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 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe File created C:\Windows\rss\csrss.exe feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 3176 sc.exe -
Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process target process 2128 3236 WerFault.exe feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 3240 3192 WerFault.exe feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.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 4244 schtasks.exe 3172 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.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\@tzres.dll,-281 = "Central Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-672 = "AUS Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-51 = "Greenland Daylight 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" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2412 = "Marquesas 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\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.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\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-161 = "Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exefeac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exepowershell.exefeac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4484 powershell.exe 4484 powershell.exe 3236 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 3236 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 3868 powershell.exe 3868 powershell.exe 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 4992 powershell.exe 4992 powershell.exe 3316 powershell.exe 3316 powershell.exe 4604 powershell.exe 4604 powershell.exe 2016 powershell.exe 2016 powershell.exe 3308 powershell.exe 3308 powershell.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 3220 csrss.exe 3220 csrss.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 3220 csrss.exe 3220 csrss.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 3220 csrss.exe 3220 csrss.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe 4832 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exefeac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 4484 powershell.exe Token: SeDebugPrivilege 3236 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Token: SeImpersonatePrivilege 3236 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Token: SeDebugPrivilege 3868 powershell.exe Token: SeDebugPrivilege 4992 powershell.exe Token: SeDebugPrivilege 3316 powershell.exe Token: SeDebugPrivilege 4604 powershell.exe Token: SeDebugPrivilege 2016 powershell.exe Token: SeDebugPrivilege 3308 powershell.exe Token: SeSystemEnvironmentPrivilege 3220 csrss.exe Token: SeSecurityPrivilege 3176 sc.exe Token: SeSecurityPrivilege 3176 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exefeac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 3236 wrote to memory of 4484 3236 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 3236 wrote to memory of 4484 3236 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 3236 wrote to memory of 4484 3236 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 3192 wrote to memory of 3868 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 3192 wrote to memory of 3868 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 3192 wrote to memory of 3868 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 3192 wrote to memory of 5052 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe cmd.exe PID 3192 wrote to memory of 5052 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe cmd.exe PID 5052 wrote to memory of 1716 5052 cmd.exe netsh.exe PID 5052 wrote to memory of 1716 5052 cmd.exe netsh.exe PID 3192 wrote to memory of 4992 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 3192 wrote to memory of 4992 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 3192 wrote to memory of 4992 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 3192 wrote to memory of 3316 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 3192 wrote to memory of 3316 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 3192 wrote to memory of 3316 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 3192 wrote to memory of 3220 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe csrss.exe PID 3192 wrote to memory of 3220 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe csrss.exe PID 3192 wrote to memory of 3220 3192 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe csrss.exe PID 3220 wrote to memory of 4604 3220 csrss.exe powershell.exe PID 3220 wrote to memory of 4604 3220 csrss.exe powershell.exe PID 3220 wrote to memory of 4604 3220 csrss.exe powershell.exe PID 3220 wrote to memory of 2016 3220 csrss.exe powershell.exe PID 3220 wrote to memory of 2016 3220 csrss.exe powershell.exe PID 3220 wrote to memory of 2016 3220 csrss.exe powershell.exe PID 3220 wrote to memory of 3308 3220 csrss.exe powershell.exe PID 3220 wrote to memory of 3308 3220 csrss.exe powershell.exe PID 3220 wrote to memory of 3308 3220 csrss.exe powershell.exe PID 3220 wrote to memory of 4832 3220 csrss.exe injector.exe PID 3220 wrote to memory of 4832 3220 csrss.exe injector.exe PID 3212 wrote to memory of 4124 3212 windefender.exe cmd.exe PID 3212 wrote to memory of 4124 3212 windefender.exe cmd.exe PID 3212 wrote to memory of 4124 3212 windefender.exe cmd.exe PID 4124 wrote to memory of 3176 4124 cmd.exe sc.exe PID 4124 wrote to memory of 3176 4124 cmd.exe sc.exe PID 4124 wrote to memory of 3176 4124 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\feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe"C:\Users\Admin\AppData\Local\Temp\feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3236 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4484
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C:\Users\Admin\AppData\Local\Temp\feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe"C:\Users\Admin\AppData\Local\Temp\feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.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:3192 -
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:3868
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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:5052 -
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:1716
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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:4992
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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:3316
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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:3220 -
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:4604
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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:4244
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:556
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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:2016
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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:3308
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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:4832
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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:3172
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3212 -
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:4124 -
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:3176
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3192 -s 8963⤵
- Program crash
PID:3240
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 9522⤵
- Program crash
PID:2128
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3236 -ip 32361⤵PID:2228
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3192 -ip 31921⤵PID:3228
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1344
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54020c27282ec311fd1efebe06ffd8c1d
SHA1da90fb871a4fd0a6950d3a736433f9023553f2a5
SHA256e877bdf97cb14765e4d53809d88d9a1ed09ee6a76d0096e8366897d073f8593b
SHA51229e460cc0ac690cb60fb5bf1eec3b92053bc78a394342f7170d8bb6a6ccf3822b0ccbd42c9e64f25f612701d02b2663d201d55a57726e7af730572f33688f8b4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ed682b9a4d8dc82f17ccf97a112f8bbf
SHA1cbab85b5c7c8bbe27328857546e302a78aeccbd5
SHA256799977013fda6c6e44c20bc0538a00d70e945e1142dcb5469734055ea21c4bc0
SHA512eda5c6fe9c1652c13d221852454164892ea5ca6322cb2059ac7cac53701a5ef1c15e87ef807d0287d6b6c6381d82b7702db7935f7bf88a45c57b78317f80302b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51e9054d09da57ba592abb447955ebc7d
SHA140813225c30987e5dceb2bf2ba9d7190e60a22b8
SHA25650ff66229203eaae6e22a8d70995425ca96ac9c61a4357fc83dfc5111d71741e
SHA5123e26c47ba85b5017dc8e76d80603d61782be6c550807eb0829321d0fd05e6fb4979a3beb2252c92516e4a8dc2659fea191db9f5ed6e2910240ec97be431f264d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55b94c51b31490ff5a54542ce17123f03
SHA1e47d0c04e2cee641f6884bed4c7dd7d2af6ed814
SHA256be44ecb3e1e199310c67005f777a5299379b0346616267ee46cdddd0875d7944
SHA512d8251561a82d08151f1edfb85f7ada33d5eb977a175161eeebf69a28897d207c7c0f97644ac617accddda7c65904ef765e107b335fb1c72ed2738e411f7aa032
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5199f54f30b6c78137d9bc5fc18f1b4a2
SHA15044494753e60b5db87494043c5c3bfddae5aa84
SHA2560e92493b92d2168fd585473f30dcc31e967e858d699ba26b46462861ef5c1cb2
SHA512020ce0445261c1cf61f7fbe3d4875400fcd6258991e9f8d02eea7b1beeec71465b4c8292d73a632adbd86d00c182b4a41f5b054dbc7d18bb8c0c4c64373e1834
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Filesize
4.2MB
MD50bb31a695e9f6820d7fcd05fa8f19e2c
SHA1449dc9d99a225c6820f2f8cc346ac39f73c1388a
SHA256feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6
SHA512a7596e17851ccc47182ad2774e72d775cec8bede5740fdbff7fef538f97eec4955ed85f06e4d93b0c70affd20cab4b3a692181ba4f6b2eb252f10502add1f4e3
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec