Analysis
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max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-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 behavioral1/memory/5008-2-0x0000000004090000-0x000000000497B000-memory.dmp family_glupteba behavioral1/memory/5008-3-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral1/memory/4032-56-0x0000000004060000-0x000000000494B000-memory.dmp family_glupteba behavioral1/memory/4032-59-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral1/memory/5008-58-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral1/memory/5008-60-0x0000000004090000-0x000000000497B000-memory.dmp family_glupteba behavioral1/memory/4032-158-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral1/memory/2088-263-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral1/memory/2088-272-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral1/memory/2088-273-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral1/memory/2088-275-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral1/memory/2088-278-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral1/memory/2088-280-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral1/memory/2088-281-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral1/memory/2088-283-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral1/memory/2088-285-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral1/memory/2088-288-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral1/memory/2088-290-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral1/memory/2088-291-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral1/memory/2088-293-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 4856 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 2088 csrss.exe 4880 injector.exe 4416 windefender.exe 696 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral1/memory/4416-271-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/696-274-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/696-277-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/696-284-0x0000000000400000-0x00000000008DF000-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-1-5-21-259785868-298165991-4178590326-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\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:
feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.execsrss.exedescription ioc process File created C:\Windows\rss\csrss.exe feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 4468 sc.exe -
Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process target process 5112 5008 WerFault.exe feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 5112 4032 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 4008 schtasks.exe 3424 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exepowershell.exewindefender.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,-2322 = "Sakhalin Standard Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates 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,-451 = "Caucasus 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\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.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\@tzres.dll,-962 = "Paraguay Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-931 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-221 = "Alaskan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-691 = "Tasmania Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-401 = "Arabic 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\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,-772 = "Montevideo Standard Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-651 = "AUS Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-162 = "Central Standard Time" windefender.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\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.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,-402 = "Arabic Standard Time" feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.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\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 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,-1412 = "Syria Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exefeac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exepowershell.exefeac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 2148 powershell.exe 2148 powershell.exe 5008 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 5008 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 2960 powershell.exe 2960 powershell.exe 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe 1396 powershell.exe 1396 powershell.exe 3056 powershell.exe 3056 powershell.exe 3056 powershell.exe 1564 powershell.exe 1564 powershell.exe 3156 powershell.exe 3156 powershell.exe 3156 powershell.exe 2512 powershell.exe 2512 powershell.exe 2512 powershell.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 2088 csrss.exe 2088 csrss.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 2088 csrss.exe 2088 csrss.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 2088 csrss.exe 2088 csrss.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exefeac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 2148 powershell.exe Token: SeDebugPrivilege 5008 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Token: SeImpersonatePrivilege 5008 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe Token: SeDebugPrivilege 2960 powershell.exe Token: SeDebugPrivilege 1396 powershell.exe Token: SeDebugPrivilege 3056 powershell.exe Token: SeDebugPrivilege 1564 powershell.exe Token: SeDebugPrivilege 3156 powershell.exe Token: SeDebugPrivilege 2512 powershell.exe Token: SeSystemEnvironmentPrivilege 2088 csrss.exe Token: SeSecurityPrivilege 4468 sc.exe Token: SeSecurityPrivilege 4468 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exefeac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 5008 wrote to memory of 2148 5008 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 5008 wrote to memory of 2148 5008 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 5008 wrote to memory of 2148 5008 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 4032 wrote to memory of 2960 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 4032 wrote to memory of 2960 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 4032 wrote to memory of 2960 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 4032 wrote to memory of 3888 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe cmd.exe PID 4032 wrote to memory of 3888 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe cmd.exe PID 3888 wrote to memory of 4856 3888 cmd.exe netsh.exe PID 3888 wrote to memory of 4856 3888 cmd.exe netsh.exe PID 4032 wrote to memory of 1396 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 4032 wrote to memory of 1396 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 4032 wrote to memory of 1396 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 4032 wrote to memory of 3056 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 4032 wrote to memory of 3056 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 4032 wrote to memory of 3056 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe powershell.exe PID 4032 wrote to memory of 2088 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe csrss.exe PID 4032 wrote to memory of 2088 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe csrss.exe PID 4032 wrote to memory of 2088 4032 feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6.exe csrss.exe PID 2088 wrote to memory of 1564 2088 csrss.exe powershell.exe PID 2088 wrote to memory of 1564 2088 csrss.exe powershell.exe PID 2088 wrote to memory of 1564 2088 csrss.exe powershell.exe PID 2088 wrote to memory of 3156 2088 csrss.exe powershell.exe PID 2088 wrote to memory of 3156 2088 csrss.exe powershell.exe PID 2088 wrote to memory of 3156 2088 csrss.exe powershell.exe PID 2088 wrote to memory of 2512 2088 csrss.exe powershell.exe PID 2088 wrote to memory of 2512 2088 csrss.exe powershell.exe PID 2088 wrote to memory of 2512 2088 csrss.exe powershell.exe PID 2088 wrote to memory of 4880 2088 csrss.exe injector.exe PID 2088 wrote to memory of 4880 2088 csrss.exe injector.exe PID 4416 wrote to memory of 2820 4416 windefender.exe cmd.exe PID 4416 wrote to memory of 2820 4416 windefender.exe cmd.exe PID 4416 wrote to memory of 2820 4416 windefender.exe cmd.exe PID 2820 wrote to memory of 4468 2820 cmd.exe sc.exe PID 2820 wrote to memory of 4468 2820 cmd.exe sc.exe PID 2820 wrote to memory of 4468 2820 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:5008 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2148
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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:4032 -
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:2960
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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:3888 -
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:4856
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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:1396
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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:3056
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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:2088 -
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:1564
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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:4008
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4104
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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:3156
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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:2512
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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:4880
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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:3424
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4416 -
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:2820 -
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:4468
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4032 -s 9123⤵
- Program crash
PID:5112
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5008 -s 9602⤵
- Program crash
PID:5112
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5008 -ip 50081⤵PID:4004
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4032 -ip 40321⤵PID:748
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:696
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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b0efd113957e3dac208985ad05148b5f
SHA16ec4b994dd767b6ecdc74c3ecb4d33db53368d0d
SHA25699c0a32a4a790168b6c1fe4275df597a04664926631904554c3e16901d35dffd
SHA512bf48e1d46ebe628f941543df3fbc7ed506e024d46afe2612d24c70282384094d565a733dbec8291ada62cd7006009afaa8024e9fca634086963c0e9cf590dd54
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ee39c83c2f1bb92f4d5c73dd55bd014d
SHA12f703e39685a0f31441bd7609ae13849d5183f1f
SHA2562e9383ba0f6d62081df2f588d13fbbdb67f8cc1d384b33bef8dce7d3f1456dd0
SHA512e4509db6f3f0e5da2a1126c86673f5af124b91644c02e4acefaf7bb44a97a8c6679091e1156032068f49ad4e6f556be964f3db7b209bcf687178843e4b86cec7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58275c4e8a752dee4e3178fa4430487b5
SHA1069bd83dd55cbd1f1163f6bf4b43b33d2a87491a
SHA256b9a656db7b7249a3f0b7ac53186575f6378565d87b5e63f2a540cb11bc5f3f31
SHA512a256cf5be2795fb33b21429365a64e3802205af8c646fa068d501684b26af9dd82dcabecf310688cfe37f68525108b017b6b27ff44f3ff6aa04ecd18566b8b5c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a35d7d95ea2a67a202a0e9753e3f7fc3
SHA14a2be74677fb07f32aeaf32a58bb329dd360b851
SHA256001b6095add002a75e8f8250317fecc84905924c4d1f88d1ab2feaeb4faebde4
SHA512bda466b74338188231a4978c005d8ba9fa5c6de9bbd8b2f8b0d075872052878cbf0c7c741c6f47c691ff4d3029a0358783170a492dc19852f11713579c25bd60
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5079858b194bd80e2b74cc495a7ddee0e
SHA12472eb07dc7657fa14e3c3bfb22ae809f62d768c
SHA2568a28b8447066d6dae0a81a960ae86f3f4339c1fecc8d084b22e354ba5984737f
SHA5120e37ed68b923c8c199088d4b55d4e7b1177f06646f8378fdac66748d59a30c74c0f0b192ac6755c04a154cdc97a0aa61a3afb535a781d90b880c57b9077ddd08
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Filesize
4.2MB
MD50bb31a695e9f6820d7fcd05fa8f19e2c
SHA1449dc9d99a225c6820f2f8cc346ac39f73c1388a
SHA256feac8779d73f2e094f514d305d515174db0bd3edb21a83656866164985a6a0a6
SHA512a7596e17851ccc47182ad2774e72d775cec8bede5740fdbff7fef538f97eec4955ed85f06e4d93b0c70affd20cab4b3a692181ba4f6b2eb252f10502add1f4e3
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec