Analysis
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max time kernel
150s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
15-05-2024 15:29
Static task
static1
Behavioral task
behavioral1
Sample
c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe
Resource
win10v2004-20240508-en
General
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Target
c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe
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Size
4.1MB
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MD5
cf0a4b93973ffe9b6276de5e351f426d
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SHA1
45d8e2501728dd1a0ce7b3f5dc7520b7eb3db257
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SHA256
c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e
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SHA512
7aacb86c41ed6594646b5d946302011f8fa60eaf562d6f776df46051b5368b2eb8589be7cca7a005075cfafa59345a1cb3d2720ec015115d7f515e20a5ba963f
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SSDEEP
98304:04ziXPD6JlCwAB9MdaGWF4olx/WA7Yvzbb8JpNG:04G/GRAB9MdaGBolx/WzuY
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/2420-2-0x0000000004D50000-0x000000000563B000-memory.dmp family_glupteba behavioral2/memory/2420-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2420-24-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2420-54-0x0000000004D50000-0x000000000563B000-memory.dmp family_glupteba behavioral2/memory/2420-55-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2420-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4920-123-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4920-128-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/1292-204-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/1292-212-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/1292-217-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/1292-220-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/1292-223-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/1292-226-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/1292-229-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/1292-232-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/1292-235-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/1292-238-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1876 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1292 csrss.exe 3040 injector.exe 3940 windefender.exe 2740 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa16-208.dat upx behavioral2/memory/3940-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2740-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3940-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2740-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2740-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Set value (str) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\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 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.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe File created C:\Windows\rss\csrss.exe c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.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 1100 sc.exe -
pid Process 3204 powershell.exe 3056 powershell.exe 1436 powershell.exe 4916 powershell.exe 4420 powershell.exe 3600 powershell.exe 948 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 4024 schtasks.exe 724 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA 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,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-721 = "Central Pacific Daylight 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,-251 = "Dateline Daylight Time" c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs 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,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1412 = "Syria 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,-2511 = "Lord Howe Daylight Time" c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs 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,-332 = "E. Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs 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,-211 = "Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs 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,-82 = "Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2181 = "Astrakhan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-51 = "Greenland 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" c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2591 = "Tocantins Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-542 = "Myanmar Standard 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" c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs 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,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3204 powershell.exe 3204 powershell.exe 2420 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 2420 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 3056 powershell.exe 3056 powershell.exe 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 1436 powershell.exe 1436 powershell.exe 4916 powershell.exe 4916 powershell.exe 4420 powershell.exe 4420 powershell.exe 3600 powershell.exe 3600 powershell.exe 948 powershell.exe 948 powershell.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 1292 csrss.exe 1292 csrss.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 1292 csrss.exe 1292 csrss.exe 3040 injector.exe 3040 injector.exe 1292 csrss.exe 1292 csrss.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3204 powershell.exe Token: SeDebugPrivilege 2420 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Token: SeImpersonatePrivilege 2420 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe Token: SeDebugPrivilege 3056 powershell.exe Token: SeDebugPrivilege 1436 powershell.exe Token: SeDebugPrivilege 4916 powershell.exe Token: SeDebugPrivilege 4420 powershell.exe Token: SeDebugPrivilege 3600 powershell.exe Token: SeDebugPrivilege 948 powershell.exe Token: SeSystemEnvironmentPrivilege 1292 csrss.exe Token: SeSecurityPrivilege 1100 sc.exe Token: SeSecurityPrivilege 1100 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2420 wrote to memory of 3204 2420 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 83 PID 2420 wrote to memory of 3204 2420 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 83 PID 2420 wrote to memory of 3204 2420 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 83 PID 4920 wrote to memory of 3056 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 88 PID 4920 wrote to memory of 3056 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 88 PID 4920 wrote to memory of 3056 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 88 PID 4920 wrote to memory of 1468 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 90 PID 4920 wrote to memory of 1468 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 90 PID 1468 wrote to memory of 1876 1468 cmd.exe 92 PID 1468 wrote to memory of 1876 1468 cmd.exe 92 PID 4920 wrote to memory of 1436 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 93 PID 4920 wrote to memory of 1436 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 93 PID 4920 wrote to memory of 1436 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 93 PID 4920 wrote to memory of 4916 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 95 PID 4920 wrote to memory of 4916 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 95 PID 4920 wrote to memory of 4916 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 95 PID 4920 wrote to memory of 1292 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 97 PID 4920 wrote to memory of 1292 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 97 PID 4920 wrote to memory of 1292 4920 c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe 97 PID 1292 wrote to memory of 4420 1292 csrss.exe 98 PID 1292 wrote to memory of 4420 1292 csrss.exe 98 PID 1292 wrote to memory of 4420 1292 csrss.exe 98 PID 1292 wrote to memory of 3600 1292 csrss.exe 104 PID 1292 wrote to memory of 3600 1292 csrss.exe 104 PID 1292 wrote to memory of 3600 1292 csrss.exe 104 PID 1292 wrote to memory of 948 1292 csrss.exe 106 PID 1292 wrote to memory of 948 1292 csrss.exe 106 PID 1292 wrote to memory of 948 1292 csrss.exe 106 PID 1292 wrote to memory of 3040 1292 csrss.exe 108 PID 1292 wrote to memory of 3040 1292 csrss.exe 108 PID 3940 wrote to memory of 1792 3940 windefender.exe 114 PID 3940 wrote to memory of 1792 3940 windefender.exe 114 PID 3940 wrote to memory of 1792 3940 windefender.exe 114 PID 1792 wrote to memory of 1100 1792 cmd.exe 115 PID 1792 wrote to memory of 1100 1792 cmd.exe 115 PID 1792 wrote to memory of 1100 1792 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\c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe"C:\Users\Admin\AppData\Local\Temp\c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2420 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3204
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C:\Users\Admin\AppData\Local\Temp\c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.exe"C:\Users\Admin\AppData\Local\Temp\c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e.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:4920 -
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:3056
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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:1468 -
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:1876
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1436
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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:4916
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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:1292 -
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:4420
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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:4024
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3540
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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:3600
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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:948
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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:3040
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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:724
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3940 -
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:1792 -
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:1100
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2740
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
MD5103474969eed7b8021b3ea4cde5564d3
SHA107cbe4cf5fecc32ea3e85f92e8ea6cdeca9c80ff
SHA256d5187778d9cad03913c8a3aca0cf2ddf711a93b81a063413a92294d923562a74
SHA51205fd95fe1d03ca71d7a3a6514ff336f4b53b9a005043d91543ce53115975359ba6687a560713014cfd74629f4c7fc53d79121d2e4d8136e005beb4aa536113cb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5af860c5c01c03588ec0c4d59d36dd78c
SHA167da667851b187b797657623573d487b79e128c1
SHA256be9882fae34d41c4d28ea15a1175e99d9cbed852f4360f12b2540137f4802cd1
SHA5124cc1142af76f67f1fbf4aef40d5e74d788f39c902289832e731e5ffab7f6cc2ddec66754375232af0c05f1bb3f4cd14b547b29d95e749280e5fbbea270484c59
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53a55a7cff22d7ef589762cf9eb8e878e
SHA17b9e458d58c3b50d0e95d32f702a81a9cca3fc2e
SHA25608c79255d431e9320dde6fadfc8ac8086bafc95a70ec888713402c72663846dd
SHA5121f1889160aee1851c1e99d2a7838a02046006cc1b0a7145f712464bd974588ae7f2f3103a9af00e4edcfa96b0adf382b1951ed27b3041bd79b5157939f7ad3cc
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e9be77bcaf219c1c27cf164b171b6b96
SHA1cbdcc6ca80d6b6d75f95732888c1d61e76206545
SHA256cd826aff00ececd0a964c625dbf725840e9a2de6db029396b8a16010eb33d104
SHA5122dec0d8bdd4cfe744d05ace3bd7be6726a16036c3cc7a1a498e541545e0b0c9a9e4f133f47440a9a071e9bf815c82f759ef6f5b9eb533e56d89f374df9720fcc
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5804c85bc7bb42ae1347650f59dc8eb3e
SHA13245a30647129ed538496d03d90e81151fe70be7
SHA256cf6d2f36538ed3f25f19019d5e49273c166c9c08aada6c7f69ca98cc46efb198
SHA512e09149ba626869c3a750cc365d78a50532a4235348f8ee76c326f63cf4375abb15e8f3a12ef6d386ab29de704f93510300175bd9a77ed476b2189e17bb53335f
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Filesize
4.1MB
MD5cf0a4b93973ffe9b6276de5e351f426d
SHA145d8e2501728dd1a0ce7b3f5dc7520b7eb3db257
SHA256c8bf4eb6de6fe25752c543fbf01b7850798573a531cba7b7c391bebbde41f37e
SHA5127aacb86c41ed6594646b5d946302011f8fa60eaf562d6f776df46051b5368b2eb8589be7cca7a005075cfafa59345a1cb3d2720ec015115d7f515e20a5ba963f
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec