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Analysis
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max time kernel
150s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
03/05/2024, 09:43
Static task
static1
Behavioral task
behavioral1
Sample
a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe
Resource
win10v2004-20240419-en
General
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Target
a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe
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Size
4.2MB
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MD5
0d5c98c75d465b58632aabc4a2989e93
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SHA1
ce01235cb3ad0ba4ff7a4236996b382332d95152
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SHA256
a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b
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SHA512
220910ac191a891db32f7f2064815effebad513ee82305d165d2ed6804c69c1bb52834ea53381002842748f4f5079680adeeac59ec2b4d66f33af5d09e9c3b2c
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SSDEEP
98304:oNNd1Yg/NqsES5dm6JUPGFLEW52dvQ3lbZBO4k1BLVdUTaut3GMl1GZi:C1YgF77m6JcW6vIbMV275GMl1GZi
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/4780-2-0x0000000003E60000-0x000000000474B000-memory.dmp family_glupteba behavioral1/memory/4780-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4780-115-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral1/memory/3480-131-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral1/memory/4780-169-0x0000000003E60000-0x000000000474B000-memory.dmp family_glupteba behavioral1/memory/4780-208-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4036-210-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral1/memory/4036-220-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral1/memory/4036-228-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral1/memory/4036-231-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral1/memory/4036-234-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral1/memory/4036-237-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral1/memory/4036-240-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral1/memory/4036-243-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral1/memory/4036-246-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral1/memory/4036-249-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral1/memory/4036-252-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral1/memory/4036-255-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral1/memory/4036-258-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2144 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4036 csrss.exe 3432 injector.exe 464 windefender.exe 4400 windefender.exe -
resource yara_rule behavioral1/files/0x000b000000023bbf-219.dat upx behavioral1/memory/464-221-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4400-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/464-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4400-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4400-235-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\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 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe File created C:\Windows\rss\csrss.exe a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.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 4524 sc.exe -
pid Process 1144 powershell.exe 876 powershell.exe 1392 powershell.exe 3056 powershell.exe 4524 powershell.exe 4588 powershell.exe 3708 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 3464 schtasks.exe 2628 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\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight 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,-571 = "China Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\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\2a\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates 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,-661 = "Cen. Australia Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs 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\@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,-2591 = "Tocantins Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-32 = "Mid-Atlantic Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2162 = "Altai 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" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 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\2a\52C64B7E\@tzres.dll,-622 = "Korea Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3056 powershell.exe 3056 powershell.exe 4780 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 4780 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 4524 powershell.exe 4524 powershell.exe 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 4588 powershell.exe 4588 powershell.exe 4588 powershell.exe 3708 powershell.exe 3708 powershell.exe 3708 powershell.exe 1144 powershell.exe 1144 powershell.exe 876 powershell.exe 876 powershell.exe 1392 powershell.exe 1392 powershell.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 4036 csrss.exe 4036 csrss.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 4036 csrss.exe 4036 csrss.exe 3432 injector.exe 3432 injector.exe 4036 csrss.exe 4036 csrss.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe 3432 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3056 powershell.exe Token: SeDebugPrivilege 4780 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Token: SeImpersonatePrivilege 4780 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Token: SeDebugPrivilege 4524 powershell.exe Token: SeDebugPrivilege 4588 powershell.exe Token: SeDebugPrivilege 3708 powershell.exe Token: SeDebugPrivilege 1144 powershell.exe Token: SeDebugPrivilege 876 powershell.exe Token: SeDebugPrivilege 1392 powershell.exe Token: SeSystemEnvironmentPrivilege 4036 csrss.exe Token: SeSecurityPrivilege 4524 sc.exe Token: SeSecurityPrivilege 4524 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4780 wrote to memory of 3056 4780 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 88 PID 4780 wrote to memory of 3056 4780 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 88 PID 4780 wrote to memory of 3056 4780 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 88 PID 3480 wrote to memory of 4524 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 96 PID 3480 wrote to memory of 4524 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 96 PID 3480 wrote to memory of 4524 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 96 PID 3480 wrote to memory of 368 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 102 PID 3480 wrote to memory of 368 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 102 PID 368 wrote to memory of 2144 368 cmd.exe 104 PID 368 wrote to memory of 2144 368 cmd.exe 104 PID 3480 wrote to memory of 4588 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 105 PID 3480 wrote to memory of 4588 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 105 PID 3480 wrote to memory of 4588 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 105 PID 3480 wrote to memory of 3708 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 108 PID 3480 wrote to memory of 3708 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 108 PID 3480 wrote to memory of 3708 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 108 PID 3480 wrote to memory of 4036 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 110 PID 3480 wrote to memory of 4036 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 110 PID 3480 wrote to memory of 4036 3480 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 110 PID 4036 wrote to memory of 1144 4036 csrss.exe 111 PID 4036 wrote to memory of 1144 4036 csrss.exe 111 PID 4036 wrote to memory of 1144 4036 csrss.exe 111 PID 4036 wrote to memory of 876 4036 csrss.exe 117 PID 4036 wrote to memory of 876 4036 csrss.exe 117 PID 4036 wrote to memory of 876 4036 csrss.exe 117 PID 4036 wrote to memory of 1392 4036 csrss.exe 119 PID 4036 wrote to memory of 1392 4036 csrss.exe 119 PID 4036 wrote to memory of 1392 4036 csrss.exe 119 PID 4036 wrote to memory of 3432 4036 csrss.exe 121 PID 4036 wrote to memory of 3432 4036 csrss.exe 121 PID 464 wrote to memory of 4228 464 windefender.exe 128 PID 464 wrote to memory of 4228 464 windefender.exe 128 PID 464 wrote to memory of 4228 464 windefender.exe 128 PID 4228 wrote to memory of 4524 4228 cmd.exe 129 PID 4228 wrote to memory of 4524 4228 cmd.exe 129 PID 4228 wrote to memory of 4524 4228 cmd.exe 129 -
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\a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe"C:\Users\Admin\AppData\Local\Temp\a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4780 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3056
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C:\Users\Admin\AppData\Local\Temp\a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe"C:\Users\Admin\AppData\Local\Temp\a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.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:3480 -
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:4524
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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:368 -
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:2144
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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:4588
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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:3708
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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:4036 -
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:1144
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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:3464
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3164
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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:876
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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:1392
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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:3432
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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:2628
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:464 -
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:4228 -
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:4524
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4400
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58592af2f439630268e96ee8be49b4b88
SHA172235c6faf50f933df630e1210d5ef42715f27e5
SHA256a6af64a8d5f01afcd41813ecdea8cabfd8f09301361c0f8a744b7b88d9fc595f
SHA512e3c55642dca1abcf29286f8e128782f06f34ba0927fae68daca61216c7615fd6770b516394d5e17038f8010ed95c5c5c7e6d6c1e64097287ac1409ae3861016e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fc37b2660f7017aff5a6088373cba6ff
SHA146cabc8defdd0a41f94a40c1532a9d0a375dfd87
SHA2564e07c6844e50fed238d85d6b0caa828dbc67967eb8f2c7f432460a7043fb4cca
SHA512b15d4cdcbd9cf1783310ab40e7c389dd7586d07efee8eff3ed9054d7296162d88aae18b6eb35a61600d63cc37b11b6c01cfa3d91463ad5090b755b9f356bf97c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52062d36b1dd7d283b4f8c162abf6d8f1
SHA1be504730e6451ece8ef3fd5a6116ae388eab15f6
SHA2568c27a460db7859444071bb760f64c9c7d048d304bb2c6d46aaa13132ea222900
SHA512004cb60bfa89f8e666eed89d5dde6d7b4e626ce01690f2cd78fc4f09ee8f718e6f54688bb30fcc1b7e63f0d11418ae698260c9848429c150e3601f22283e7022
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b60c1d28c08e96d6487b02bd74c734a6
SHA154286617bb0394230f8cba35f99f3819f2eed233
SHA2567a9137918484b7908e50da3b8b28fe0ca94d7ff98f389fdb5280c329ac3815cb
SHA512c411a0bdf4fe0114f4bcf62f3213b1f32e76ea62d9409eb6b6c73db6e97efb583eb22ce13242de8d0e1f7a154e33019ec69b9428f6222f1b95d0ded6ec63b34b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52191249f088d284970e5a57a7f44124d
SHA1c76d1d38abfdae2b6411e878b1ed33d371f83105
SHA256ce400c4b7937e31e293b58b076a09db7cbf7638de04734e355a7f97532d9b404
SHA512ca5e28266a2e49f78cf4c61087c3fc3c2d35d701dd29083d692ceb9f380ba451425f34501503f4b27c2f4d13a6ce6908ab1d1568bc7e720968698d2be29a82a2
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Filesize
4.2MB
MD50d5c98c75d465b58632aabc4a2989e93
SHA1ce01235cb3ad0ba4ff7a4236996b382332d95152
SHA256a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b
SHA512220910ac191a891db32f7f2064815effebad513ee82305d165d2ed6804c69c1bb52834ea53381002842748f4f5079680adeeac59ec2b4d66f33af5d09e9c3b2c
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec