Analysis
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max time kernel
152s -
max time network
155s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
17/04/2024, 15:41
Static task
static1
Behavioral task
behavioral1
Sample
05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe
Resource
win10v2004-20240412-en
General
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Target
05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe
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Size
4.2MB
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MD5
c9b0b7a85b135c6095efbca7a4290013
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SHA1
3c737be6da8d33d6849af153c29aa08c227058af
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SHA256
05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c
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SHA512
2f4a0b5be561ecaa1bc610abda3475dcd721c75c17809bf2699f9ed102f286692c0289da0af6d2a5d16c25d6ebaac7e12f907705040799eb35a438a098667c15
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SSDEEP
98304:uz7Cg0ld9bGpeFIidtQ9zICqBAsCsR7hN5aqRYTU74:k7NcfZtQ9LJEd3aOYT+4
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/3204-2-0x0000000005390000-0x0000000005C7B000-memory.dmp family_glupteba behavioral2/memory/3204-3-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/3204-4-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/3204-50-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/3204-51-0x0000000005390000-0x0000000005C7B000-memory.dmp family_glupteba behavioral2/memory/5260-58-0x0000000005220000-0x0000000005B0B000-memory.dmp family_glupteba behavioral2/memory/5260-59-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/3204-72-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5260-91-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5260-149-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5784-243-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5784-248-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5784-255-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5784-258-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5784-261-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5784-264-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5784-267-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5784-270-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5784-273-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2564 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 5784 csrss.exe 5412 injector.exe 5240 windefender.exe 2512 windefender.exe -
resource yara_rule behavioral2/files/0x0005000000029ef3-247.dat upx behavioral2/memory/5240-253-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2512-256-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2512-262-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1734202354-1504186683-2192872036-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Set value (str) \REGISTRY\USER\S-1-5-21-1734202354-1504186683-2192872036-1000\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 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 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe File created C:\Windows\rss\csrss.exe 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.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 2348 sc.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 1172 schtasks.exe 6140 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-221 = "Alaskan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-501 = "Nepal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-931 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-132 = "US Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 6116 powershell.exe 6116 powershell.exe 3204 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 3204 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 5964 powershell.exe 5964 powershell.exe 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 4768 powershell.exe 4768 powershell.exe 5084 powershell.exe 5084 powershell.exe 4548 powershell.exe 4548 powershell.exe 4776 powershell.exe 4776 powershell.exe 3540 powershell.exe 3540 powershell.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5784 csrss.exe 5784 csrss.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5784 csrss.exe 5784 csrss.exe 5412 injector.exe 5412 injector.exe 5784 csrss.exe 5784 csrss.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe 5412 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 6116 powershell.exe Token: SeDebugPrivilege 3204 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Token: SeImpersonatePrivilege 3204 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe Token: SeDebugPrivilege 5964 powershell.exe Token: SeDebugPrivilege 4768 powershell.exe Token: SeDebugPrivilege 5084 powershell.exe Token: SeDebugPrivilege 4548 powershell.exe Token: SeDebugPrivilege 4776 powershell.exe Token: SeDebugPrivilege 3540 powershell.exe Token: SeSystemEnvironmentPrivilege 5784 csrss.exe Token: SeSecurityPrivilege 2348 sc.exe Token: SeSecurityPrivilege 2348 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3204 wrote to memory of 6116 3204 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 83 PID 3204 wrote to memory of 6116 3204 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 83 PID 3204 wrote to memory of 6116 3204 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 83 PID 5260 wrote to memory of 5964 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 88 PID 5260 wrote to memory of 5964 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 88 PID 5260 wrote to memory of 5964 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 88 PID 5260 wrote to memory of 348 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 91 PID 5260 wrote to memory of 348 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 91 PID 348 wrote to memory of 2564 348 cmd.exe 93 PID 348 wrote to memory of 2564 348 cmd.exe 93 PID 5260 wrote to memory of 4768 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 94 PID 5260 wrote to memory of 4768 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 94 PID 5260 wrote to memory of 4768 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 94 PID 5260 wrote to memory of 5084 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 96 PID 5260 wrote to memory of 5084 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 96 PID 5260 wrote to memory of 5084 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 96 PID 5260 wrote to memory of 5784 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 99 PID 5260 wrote to memory of 5784 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 99 PID 5260 wrote to memory of 5784 5260 05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe 99 PID 5784 wrote to memory of 4548 5784 csrss.exe 100 PID 5784 wrote to memory of 4548 5784 csrss.exe 100 PID 5784 wrote to memory of 4548 5784 csrss.exe 100 PID 5784 wrote to memory of 4776 5784 csrss.exe 107 PID 5784 wrote to memory of 4776 5784 csrss.exe 107 PID 5784 wrote to memory of 4776 5784 csrss.exe 107 PID 5784 wrote to memory of 3540 5784 csrss.exe 109 PID 5784 wrote to memory of 3540 5784 csrss.exe 109 PID 5784 wrote to memory of 3540 5784 csrss.exe 109 PID 5784 wrote to memory of 5412 5784 csrss.exe 114 PID 5784 wrote to memory of 5412 5784 csrss.exe 114 PID 5240 wrote to memory of 2964 5240 windefender.exe 120 PID 5240 wrote to memory of 2964 5240 windefender.exe 120 PID 5240 wrote to memory of 2964 5240 windefender.exe 120 PID 2964 wrote to memory of 2348 2964 cmd.exe 121 PID 2964 wrote to memory of 2348 2964 cmd.exe 121 PID 2964 wrote to memory of 2348 2964 cmd.exe 121 -
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\05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe"C:\Users\Admin\AppData\Local\Temp\05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3204 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:6116
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C:\Users\Admin\AppData\Local\Temp\05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.exe"C:\Users\Admin\AppData\Local\Temp\05b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c.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:5260 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5964
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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:348 -
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:2564
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4768
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5084
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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:5784 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4548
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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:1172
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:5248
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4776
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3540
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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:5412
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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:6140
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:5240 -
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:2964 -
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:2348
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2512
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
MD559458250871413f989156fcb29a68df2
SHA1c686b35c02c7838fcd9fca697d24aa17e2ed9192
SHA2568e1d00a9f86fda35f5821ed249a503e69127349ac180aed184b6528ab828a840
SHA5129272855c24cd1a3c7dc5f47e787733ff16db1e7189789d8d7e140e62ca07e8bb757f025c9d0a8242aa9c06b0147356e446ff7dc2afb9111be52ffe576c6d45c8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5aceb41ec573b33545d1608eafae5cea3
SHA18938a468e93ded16ec86d3edc0061ff998b01d1a
SHA256871e2fe7f6d8f28d467b3db1ce0ffb3d841767eb56e25a6e6f5f3977c50e44c7
SHA512577061d76f425ed95e16f8e79ebba658f11c6ecdde65988ea9a4eb3a8afd97bb60bd9274fd830c3f5dc2e3b0f25e85f26eb7f4c694f82d8d28eec183cc335434
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD525eea31fd8786e785368362aacbecb40
SHA1c483598ba537c2d801df4c0308c40feb6b49306f
SHA2561e0fda0b93fc63b00b636f229c4a910daa6ed4e76061976be37ac8c393ef2a86
SHA512d410dbb6d2a2fc32ba4666ec4fbe00b034bbb1bf856f787a1f5476c1b4b5120a9798faff4ffac3e664dee6e0bef3bbf5aac08eabeb3014bb80ba824ef85ce7cc
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a75233060ca95c1d42df33ead535f3c5
SHA1e8b0f9837d464ce3cc656f6cbf3bc5cb431fbc78
SHA256f31ec786159e99073b029f21be8b02486d91840a3ed2a2e3ad5003e425d943f4
SHA51283ed242791dd01caf191ec9e5eded8a901eb489ea983b77156c0e77f32c3fc1f549857d666dc29671ead61b489c800421e288da1451b6c27010b03e1bb9a9813
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50a8f57d5c4a6ed87490e9d25ae3d9a9e
SHA15a330b9176202b366e8c47b7575544911677b29a
SHA256969ce235c69ff0c721bb60e44d488fd8dbbfc4adac65729cfebc14fa7f9d9823
SHA512cf64c4a687fd23752f98c2620c8d52f9c7b7c8f1a717c76c3dcbda8c20b1a6c64714b8410c5f18626edd894b1497a6b8a913d19cca668337e91a5116e0839490
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Filesize
4.2MB
MD5c9b0b7a85b135c6095efbca7a4290013
SHA13c737be6da8d33d6849af153c29aa08c227058af
SHA25605b8d3cf94680686a5b73128c11134b3b85c417c2f9eca5945dcbb4553413e4c
SHA5122f4a0b5be561ecaa1bc610abda3475dcd721c75c17809bf2699f9ed102f286692c0289da0af6d2a5d16c25d6ebaac7e12f907705040799eb35a438a098667c15
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec