Analysis
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max time kernel
150s -
max time network
148s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 14:04
Static task
static1
Behavioral task
behavioral1
Sample
50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe
Resource
win10v2004-20240508-en
General
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Target
50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe
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Size
4.1MB
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MD5
e58d1153bc8172c3df9e53d601aecbaf
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SHA1
eb36698471b8f27a30f112b4d813d9d7140b9a70
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SHA256
50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e
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SHA512
7eae257b03e4957930c2a318b19717f713e079432a5d30d83438d6386e90dca41973031128f7b324e8c00eacf68df23746ff5476a16c8876823c4d521f39e9f7
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SSDEEP
98304:IuOdAWE/bfbxbxBimum48oJjLrUZhWcgWy75MTps2CObMUZCzBSS:IuOpIddBi3V8Ojm7gWylM939C3
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/1720-2-0x0000000004A60000-0x000000000534B000-memory.dmp family_glupteba behavioral2/memory/1720-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1720-126-0x0000000004A60000-0x000000000534B000-memory.dmp family_glupteba behavioral2/memory/1720-125-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1720-194-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4368-193-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4468-202-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4468-214-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4468-218-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4468-222-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4468-226-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4468-230-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4468-234-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4468-238-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4468-242-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4468-246-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4468-250-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4468-254-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4468-258-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1296 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4468 csrss.exe 4484 injector.exe 2844 windefender.exe 4636 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa37-205.dat upx behavioral2/memory/2844-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4636-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2844-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4636-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4636-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2994005945-4089876968-1367784197-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Set value (str) \REGISTRY\USER\S-1-5-21-2994005945-4089876968-1367784197-1000\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.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File 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 -
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.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.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 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2228 sc.exe -
pid Process 1820 powershell.exe 4464 powershell.exe 1456 powershell.exe 2028 powershell.exe 3908 powershell.exe 872 powershell.exe 3956 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2956 schtasks.exe 1040 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.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\2a\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-682 = "E. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.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\2a\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates 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\2a\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1411 = "Syria Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.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\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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\Disallowed\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4464 powershell.exe 4464 powershell.exe 1720 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 1720 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 1456 powershell.exe 1456 powershell.exe 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 2028 powershell.exe 2028 powershell.exe 3908 powershell.exe 3908 powershell.exe 872 powershell.exe 872 powershell.exe 3956 powershell.exe 3956 powershell.exe 1820 powershell.exe 1820 powershell.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4468 csrss.exe 4468 csrss.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4468 csrss.exe 4468 csrss.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4468 csrss.exe 4468 csrss.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe 4484 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4464 powershell.exe Token: SeDebugPrivilege 1720 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Token: SeImpersonatePrivilege 1720 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe Token: SeDebugPrivilege 1456 powershell.exe Token: SeDebugPrivilege 2028 powershell.exe Token: SeDebugPrivilege 3908 powershell.exe Token: SeDebugPrivilege 872 powershell.exe Token: SeDebugPrivilege 3956 powershell.exe Token: SeDebugPrivilege 1820 powershell.exe Token: SeSystemEnvironmentPrivilege 4468 csrss.exe Token: SeSecurityPrivilege 2228 sc.exe Token: SeSecurityPrivilege 2228 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1720 wrote to memory of 4464 1720 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 82 PID 1720 wrote to memory of 4464 1720 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 82 PID 1720 wrote to memory of 4464 1720 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 82 PID 4368 wrote to memory of 1456 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 88 PID 4368 wrote to memory of 1456 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 88 PID 4368 wrote to memory of 1456 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 88 PID 4368 wrote to memory of 3476 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 90 PID 4368 wrote to memory of 3476 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 90 PID 3476 wrote to memory of 1296 3476 cmd.exe 92 PID 3476 wrote to memory of 1296 3476 cmd.exe 92 PID 4368 wrote to memory of 2028 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 93 PID 4368 wrote to memory of 2028 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 93 PID 4368 wrote to memory of 2028 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 93 PID 4368 wrote to memory of 3908 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 95 PID 4368 wrote to memory of 3908 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 95 PID 4368 wrote to memory of 3908 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 95 PID 4368 wrote to memory of 4468 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 97 PID 4368 wrote to memory of 4468 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 97 PID 4368 wrote to memory of 4468 4368 50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe 97 PID 4468 wrote to memory of 872 4468 csrss.exe 98 PID 4468 wrote to memory of 872 4468 csrss.exe 98 PID 4468 wrote to memory of 872 4468 csrss.exe 98 PID 4468 wrote to memory of 3956 4468 csrss.exe 103 PID 4468 wrote to memory of 3956 4468 csrss.exe 103 PID 4468 wrote to memory of 3956 4468 csrss.exe 103 PID 4468 wrote to memory of 1820 4468 csrss.exe 106 PID 4468 wrote to memory of 1820 4468 csrss.exe 106 PID 4468 wrote to memory of 1820 4468 csrss.exe 106 PID 4468 wrote to memory of 4484 4468 csrss.exe 108 PID 4468 wrote to memory of 4484 4468 csrss.exe 108 PID 2844 wrote to memory of 3144 2844 windefender.exe 114 PID 2844 wrote to memory of 3144 2844 windefender.exe 114 PID 2844 wrote to memory of 3144 2844 windefender.exe 114 PID 3144 wrote to memory of 2228 3144 cmd.exe 115 PID 3144 wrote to memory of 2228 3144 cmd.exe 115 PID 3144 wrote to memory of 2228 3144 cmd.exe 115 -
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\50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe"C:\Users\Admin\AppData\Local\Temp\50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1720 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4464
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C:\Users\Admin\AppData\Local\Temp\50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.exe"C:\Users\Admin\AppData\Local\Temp\50a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e.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:4368 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1456
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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:3476 -
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:1296
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2028
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3908
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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:4468 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:872
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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:1040
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3924
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3956
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1820
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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:4484
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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:2956
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2844 -
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:3144 -
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:2228
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4636
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
MD5b8b0a3c57b9af7a7995c5a54e1f7b7f9
SHA16328c8a06a18b3b27df8959f74e5b9a3a11e9e75
SHA256375c2f268a9c9b90417323a2999ca5bdf8af965d72d7ae44bcb3246bcd227ea7
SHA51282786b718c0b4083609cc260634ad63dec1c50b118fad2b72751466e46836fb58818bc89f796c0bd6a03279fd69335d76efbc4492024410d7ef3c48ac624429b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5967a70fa855b326eb88d140de7387891
SHA1d522be40d0a9625fce5713cca5bbfcb0f9c39538
SHA2562ea61d2204eefd887de3b3f326763569cebadf2f4560efd91ee18a0ffae1afb3
SHA512630bd97debe9e5de7426ba55b92c87efc9f5d9d93b0c98661c3b91d8eadc88ef0a9467b1e2bab986d5d57e3ed85ed381c75a5445da7ca5c6a70092fc6b1e80ae
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5117b1c2d6c873934b35b940e2af556b4
SHA1addd9195e3bc248b661696cdb60e056aefd74014
SHA2566ac5d6daf42986717c198c4fdcd4099d0e87fbdeabd14eb70327cacd5c5d3358
SHA5120145e8756d4ba4c5671779845d9fa7c8f4628e7392f955d3d1cb2d328ce538cdba92dd59cea335dbb2dfe9b9e41eda41e5329288b925dd2f14af72d7523c5924
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5338e210188fc8e08d2ced15f399eae55
SHA1b3d58c5bf54176c3e277526fc79b32b3e81640f1
SHA2561ab67db44570379609e8146b91ea0ed0b3e235a6f088853cfb5002ac3e4b8e36
SHA51266c3dc0e7056298188d5a011ab8704b4a0ec1fc4d06daa70563c11c1bbcdf49b8ced9f64305aafc4c2020c5b73691144c56d95c9d9354cc1b25c0b6b402fffa1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fff358f324b17f412b27a6f0227d62af
SHA1ab28c6fe725885cdef6ddd8efbedde72d5943e53
SHA256071480ae1ae9d3e0102c2ec2ecb4383bfaeadc5bd7ba395097583020da5081a5
SHA51256cb785a516ca28d9fc5ca9dfe02dbe0f246d36330b0da17d04ce848ad7103f95eb0440b1fe595ce7c63a912cfc26308d6866e792a36cd8a263bdc2cefa834bf
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Filesize
4.1MB
MD5e58d1153bc8172c3df9e53d601aecbaf
SHA1eb36698471b8f27a30f112b4d813d9d7140b9a70
SHA25650a293e4e7599db16d9d573d3a4f34a48422f4f8517cba105b0b0f90d1eba37e
SHA5127eae257b03e4957930c2a318b19717f713e079432a5d30d83438d6386e90dca41973031128f7b324e8c00eacf68df23746ff5476a16c8876823c4d521f39e9f7
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec