Analysis
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max time kernel
150s -
max time network
153s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 01:48
Static task
static1
Behavioral task
behavioral1
Sample
4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe
Resource
win10v2004-20240508-en
General
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Target
4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe
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Size
4.1MB
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MD5
a792ffaf76a4aaf01eea83951e5c0854
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SHA1
91693c41ad3dd50e9a92a16a36fb4ab15ff8ff5b
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SHA256
4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd
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SHA512
59859eadf126d313fe27e48d4742226d4d595013fdfd1f8f6a7be293d6724b7708f3df1697573ddd99716f26dc141ab946608156977dea1a8448a4db83036f4a
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SSDEEP
98304:CQGLdTw13YmTlGi/xMFRAVNS6wnhY59m5e0z83454:CLpT0YNaxn5wu5s59Y5
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/4064-2-0x0000000004AE0000-0x00000000053CB000-memory.dmp family_glupteba behavioral2/memory/4064-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2472-119-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/4064-144-0x0000000004AE0000-0x00000000053CB000-memory.dmp family_glupteba behavioral2/memory/4064-142-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/4064-191-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3020-198-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3020-208-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3020-211-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3020-213-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3020-216-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3020-219-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3020-222-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3020-225-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3020-228-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3020-231-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3020-235-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3020-237-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3020-240-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2348 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3020 csrss.exe 5056 injector.exe 4772 windefender.exe 1568 windefender.exe -
resource yara_rule behavioral2/files/0x000300000002aa08-201.dat upx behavioral2/memory/4772-203-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4772-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1568-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1568-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.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 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 -
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 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe File created C:\Windows\rss\csrss.exe 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2312 sc.exe -
pid Process 1972 powershell.exe 3028 powershell.exe 1600 powershell.exe 4020 powershell.exe 2140 powershell.exe 1588 powershell.exe 3716 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 1664 schtasks.exe 2384 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,-461 = "Afghanistan Daylight Time" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\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,-2632 = "Norfolk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.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\2a\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-272 = "Greenwich Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3028 powershell.exe 3028 powershell.exe 4064 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 4064 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 1600 powershell.exe 1600 powershell.exe 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 4020 powershell.exe 4020 powershell.exe 2140 powershell.exe 2140 powershell.exe 1588 powershell.exe 1588 powershell.exe 3716 powershell.exe 3716 powershell.exe 1972 powershell.exe 1972 powershell.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 3020 csrss.exe 3020 csrss.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 3020 csrss.exe 3020 csrss.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 3020 csrss.exe 3020 csrss.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe 5056 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3028 powershell.exe Token: SeDebugPrivilege 4064 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Token: SeImpersonatePrivilege 4064 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe Token: SeDebugPrivilege 1600 powershell.exe Token: SeDebugPrivilege 4020 powershell.exe Token: SeDebugPrivilege 2140 powershell.exe Token: SeDebugPrivilege 1588 powershell.exe Token: SeDebugPrivilege 3716 powershell.exe Token: SeDebugPrivilege 1972 powershell.exe Token: SeSystemEnvironmentPrivilege 3020 csrss.exe Token: SeSecurityPrivilege 2312 sc.exe Token: SeSecurityPrivilege 2312 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4064 wrote to memory of 3028 4064 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 81 PID 4064 wrote to memory of 3028 4064 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 81 PID 4064 wrote to memory of 3028 4064 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 81 PID 2472 wrote to memory of 1600 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 88 PID 2472 wrote to memory of 1600 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 88 PID 2472 wrote to memory of 1600 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 88 PID 2472 wrote to memory of 2476 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 90 PID 2472 wrote to memory of 2476 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 90 PID 2476 wrote to memory of 2348 2476 cmd.exe 92 PID 2476 wrote to memory of 2348 2476 cmd.exe 92 PID 2472 wrote to memory of 4020 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 93 PID 2472 wrote to memory of 4020 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 93 PID 2472 wrote to memory of 4020 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 93 PID 2472 wrote to memory of 2140 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 95 PID 2472 wrote to memory of 2140 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 95 PID 2472 wrote to memory of 2140 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 95 PID 2472 wrote to memory of 3020 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 97 PID 2472 wrote to memory of 3020 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 97 PID 2472 wrote to memory of 3020 2472 4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe 97 PID 3020 wrote to memory of 1588 3020 csrss.exe 98 PID 3020 wrote to memory of 1588 3020 csrss.exe 98 PID 3020 wrote to memory of 1588 3020 csrss.exe 98 PID 3020 wrote to memory of 3716 3020 csrss.exe 106 PID 3020 wrote to memory of 3716 3020 csrss.exe 106 PID 3020 wrote to memory of 3716 3020 csrss.exe 106 PID 3020 wrote to memory of 1972 3020 csrss.exe 109 PID 3020 wrote to memory of 1972 3020 csrss.exe 109 PID 3020 wrote to memory of 1972 3020 csrss.exe 109 PID 3020 wrote to memory of 5056 3020 csrss.exe 111 PID 3020 wrote to memory of 5056 3020 csrss.exe 111 PID 4772 wrote to memory of 4752 4772 windefender.exe 117 PID 4772 wrote to memory of 4752 4772 windefender.exe 117 PID 4772 wrote to memory of 4752 4772 windefender.exe 117 PID 4752 wrote to memory of 2312 4752 cmd.exe 118 PID 4752 wrote to memory of 2312 4752 cmd.exe 118 PID 4752 wrote to memory of 2312 4752 cmd.exe 118 -
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\4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe"C:\Users\Admin\AppData\Local\Temp\4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4064 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3028
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C:\Users\Admin\AppData\Local\Temp\4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.exe"C:\Users\Admin\AppData\Local\Temp\4c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd.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:2472 -
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:1600
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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:2476 -
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:2348
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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:4020
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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:2140
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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:3020 -
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:1588
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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:1664
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4532
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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:3716
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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:1972
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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:5056
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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:2384
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4772 -
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:4752 -
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:2312
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1568
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
MD52ba0f58a8de99e277776d18fae032657
SHA144913a0af30b231804c2e5c1238821b46f3fd5c6
SHA256ce6c1ceece9763369391049b2128dbf8c9d5991959cd2fa0038f850c0ec6e6be
SHA512f578d370f162e40b97430361e56a95074cb7bc58c71e4e8a0e95b1b711468a8f860ca7ead2ede770b5d0afa36c6d11c7867da468737a5b5bab54586d6b22f7bb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c519b8937097cde6fa9ad4420dcfc4ae
SHA1a2aed0727e91cfa694fbdde8a62cdcc3ed59ecdf
SHA2565fd3894c13aedb691e8611c9a9e84c48052768d16ff0830521832730b6e187f3
SHA5126def6d44713a0ec8921d21b7b6a584d7a1ea9568c6af1add60f94adcfbb49d61d2c40c05bbb4954ca66aa1278f81705fef12fa3b4b36185a186a4f68a1831ca1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5042cee5f18d8cc6105d142729056ee85
SHA1b6560459bcf2e292914d346c7b5b417dfa8e98d6
SHA256c6d2bbadf77656b83178a2f0234dd853e833e764285d8f856334db07c8c7039f
SHA512ddbc3fc2c40093eb80668fd1d5ff0b8e681533107d2c8b67252bb0e30cd94965133bd86aa2aace19b50b4ca835c7a1e6332f36cf9e350890fa88e805474ed467
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f240856c4c15a935ccb101066349f0c6
SHA12479fecfd5e20fe017e55aac5285f00b5cd08786
SHA256451b28656e17693d99f0e4b7cf5884d8724cffec63977969b41d0ffabb0127e0
SHA512d2ed27b15ca02ff58e8410246e8321c33c7c33927c7d0953fd11d93226df7c32e11f6c138c7e9b14d81faa55c43283834e06e0ecabc0329a981d4baa87ec883f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b5b86833929f29701901a6e3529b5e28
SHA1d536573cbe6f9749a8c975ed725c0eb231943780
SHA256b84ddad5bb1a2ccf38d11cc37f04ec53c606ad00a2359da626ba54a1e2eb0e38
SHA5127348571f23ce854f056b45a6ce26e79140c283d802d843461fc0e4d6c16942753ff6db31ca3ba216b579bad8b6e39e27aee58d6caf612250cacd849c5f211124
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Filesize
4.1MB
MD5a792ffaf76a4aaf01eea83951e5c0854
SHA191693c41ad3dd50e9a92a16a36fb4ab15ff8ff5b
SHA2564c7f01787832770cbe464c7dd75cfd77c845bedd481ce9386dde8873547a7dbd
SHA51259859eadf126d313fe27e48d4742226d4d595013fdfd1f8f6a7be293d6724b7708f3df1697573ddd99716f26dc141ab946608156977dea1a8448a4db83036f4a
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec