Analysis
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max time kernel
159s -
max time network
162s -
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, 19:25
Static task
static1
Behavioral task
behavioral1
Sample
b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe
Resource
win10v2004-20240412-en
General
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Target
b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe
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Size
4.2MB
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MD5
1b21502f0167e0dc81c2fcf36db2f3b9
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SHA1
ba2f6c735edd994c897d3446253b991223f38a9f
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SHA256
b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da
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SHA512
e67def3b4817154bd36a725c175b8bee9c7189904491e6bcb146055693bd9328a7ac67b364e13aa0078e9b175c3279d762749c962a1804becd3953a5d05a19b5
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SSDEEP
98304:Tz8muvG4/7oo98xMphVIqHAQJ7eNfIWzS5gC960Xfu6ti9vBy294:TzvuvT/7/zVIWAQdeNfIWzX0W6tA42m
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/3132-2-0x0000000005360000-0x0000000005C4B000-memory.dmp family_glupteba behavioral2/memory/3132-3-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/3132-23-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/3132-52-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/4264-55-0x0000000005220000-0x0000000005B0B000-memory.dmp family_glupteba behavioral2/memory/4264-56-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/4264-85-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/4264-114-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/4436-150-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/4264-151-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/4436-176-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/4436-234-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/4436-245-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/4436-255-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/4436-260-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/4436-265-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/4436-267-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/4436-271-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/4436-275-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1836 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4436 csrss.exe 804 injector.exe 1744 windefender.exe 3844 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9b1-248.dat upx behavioral2/memory/1744-254-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3844-258-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3844-266-0x0000000000400000-0x00000000008DF000-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\"" csrss.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\"" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.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 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 -
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 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe File created C:\Windows\rss\csrss.exe b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe File created 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 1700 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 244 schtasks.exe 1564 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-82 = "Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.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,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-511 = "Central Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2341 = "Haiti 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\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-622 = "Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2892 = "Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates 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\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-962 = "Paraguay Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs 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\26\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5020 powershell.exe 5020 powershell.exe 3132 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 3132 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 4840 powershell.exe 4840 powershell.exe 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 656 powershell.exe 656 powershell.exe 4796 powershell.exe 4796 powershell.exe 2256 powershell.exe 2256 powershell.exe 3328 powershell.exe 3328 powershell.exe 1912 powershell.exe 1912 powershell.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 4436 csrss.exe 4436 csrss.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 4436 csrss.exe 4436 csrss.exe 804 injector.exe 804 injector.exe 4436 csrss.exe 4436 csrss.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe 804 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 5020 powershell.exe Token: SeDebugPrivilege 3132 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Token: SeImpersonatePrivilege 3132 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Token: SeDebugPrivilege 4840 powershell.exe Token: SeDebugPrivilege 656 powershell.exe Token: SeDebugPrivilege 4796 powershell.exe Token: SeDebugPrivilege 2256 powershell.exe Token: SeDebugPrivilege 3328 powershell.exe Token: SeDebugPrivilege 1912 powershell.exe Token: SeSystemEnvironmentPrivilege 4436 csrss.exe Token: SeSecurityPrivilege 1700 sc.exe Token: SeSecurityPrivilege 1700 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3132 wrote to memory of 5020 3132 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 82 PID 3132 wrote to memory of 5020 3132 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 82 PID 3132 wrote to memory of 5020 3132 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 82 PID 4264 wrote to memory of 4840 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 87 PID 4264 wrote to memory of 4840 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 87 PID 4264 wrote to memory of 4840 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 87 PID 4264 wrote to memory of 2832 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 89 PID 4264 wrote to memory of 2832 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 89 PID 2832 wrote to memory of 1836 2832 cmd.exe 91 PID 2832 wrote to memory of 1836 2832 cmd.exe 91 PID 4264 wrote to memory of 656 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 92 PID 4264 wrote to memory of 656 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 92 PID 4264 wrote to memory of 656 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 92 PID 4264 wrote to memory of 4796 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 94 PID 4264 wrote to memory of 4796 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 94 PID 4264 wrote to memory of 4796 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 94 PID 4264 wrote to memory of 4436 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 96 PID 4264 wrote to memory of 4436 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 96 PID 4264 wrote to memory of 4436 4264 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 96 PID 4436 wrote to memory of 2256 4436 csrss.exe 97 PID 4436 wrote to memory of 2256 4436 csrss.exe 97 PID 4436 wrote to memory of 2256 4436 csrss.exe 97 PID 4436 wrote to memory of 3328 4436 csrss.exe 103 PID 4436 wrote to memory of 3328 4436 csrss.exe 103 PID 4436 wrote to memory of 3328 4436 csrss.exe 103 PID 4436 wrote to memory of 1912 4436 csrss.exe 105 PID 4436 wrote to memory of 1912 4436 csrss.exe 105 PID 4436 wrote to memory of 1912 4436 csrss.exe 105 PID 4436 wrote to memory of 804 4436 csrss.exe 107 PID 4436 wrote to memory of 804 4436 csrss.exe 107 PID 1744 wrote to memory of 3508 1744 windefender.exe 113 PID 1744 wrote to memory of 3508 1744 windefender.exe 113 PID 1744 wrote to memory of 3508 1744 windefender.exe 113 PID 3508 wrote to memory of 1700 3508 cmd.exe 114 PID 3508 wrote to memory of 1700 3508 cmd.exe 114 PID 3508 wrote to memory of 1700 3508 cmd.exe 114 -
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\b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe"C:\Users\Admin\AppData\Local\Temp\b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3132 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5020
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C:\Users\Admin\AppData\Local\Temp\b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe"C:\Users\Admin\AppData\Local\Temp\b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.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:4264 -
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:4840
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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:2832 -
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:1836
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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:656
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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:4796
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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:4436 -
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:2256
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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:244
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3612
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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:3328
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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:1912
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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:804
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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:1564
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1744 -
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:3508 -
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:1700
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3844
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
MD52f57441bf54e7fc9fe63981503a39ed8
SHA17da334b3b00fa4a6e42deef43b5709b17adde325
SHA2568cd62013ad16e77396136a4610191158b645f8b372e29458338e8533c99b2260
SHA512278dce867ee6d51e7e62956d8480f2b7891846c17ffdf91835e17de1a651a1ec119b04d00abf324bb922b890ac04f841940e0239b60ef3aaa3323b98a70991a8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b574daed9494b6cc39073722331e9647
SHA163dea615d5f207c41381459bdf31e9f5fe4b5e6a
SHA2560e64a65290291cc39df82e2bfed22cf278598608cb434557b961f0f7c698775c
SHA512e446bf655d8e573ff8aa130c4fa5426af8547034f26a9fa3a4b7dfe8fe84d0de44ffa11cdfe8bfc5315ee00c4ba75301a702ea03083304ddc54853c6de1289af
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c70ff3eae296c8e2aa52a5a5049bcb8e
SHA12b6bc347e800371f6d32d40598b1d24686e1cded
SHA2568826d6fe540affb7446432d52aedb1276ec473c3947bafea57203faf6e2cd75a
SHA512742147d791aed841cb50ed15d0815b61062966f9a214fec99de0410c7e364c2965d8efeecaf9917ebf064934ebbedb9936b279368507f29b51b0c08bae42cc13
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fcfd692884f0a66848a55b917a31c436
SHA155e5d939c66ee937763581b29740f01d3b58c6f1
SHA256abb9bd228a488ff092d9fe8e3ee4a5250c9aded5e2333da9c3e600d96b9cc800
SHA512890719ea6bbd3ff4aa53ecad2612a9498e71fc01e9f63710751c82a493186e0984c22aebacce0be2f4f3a4d6540b910c94100523123a3df117eba57e2f8a1fe6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56214c44e7dedf34b94b87ccae50317a7
SHA1063d2c0dea741c38570fa5e3ce144de0b6ad1520
SHA25614a5fb7a2c37f4ec50325ce78de494bd4fe4a68ec38368164ce892074fded1c2
SHA512cd1a462583f27dc6fd2c224c93b0a0ab0ccfcaa3df6b72343bb8b9d57b126ee064a9e876e92f4e98a335ae4e83bc0ae57d343c4e8acc7b7b5dedfbe4a0eb6a7b
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Filesize
4.2MB
MD51b21502f0167e0dc81c2fcf36db2f3b9
SHA1ba2f6c735edd994c897d3446253b991223f38a9f
SHA256b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da
SHA512e67def3b4817154bd36a725c175b8bee9c7189904491e6bcb146055693bd9328a7ac67b364e13aa0078e9b175c3279d762749c962a1804becd3953a5d05a19b5
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec