Analysis
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max time kernel
87s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-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 14 IoCs
resource yara_rule behavioral1/memory/2316-2-0x0000000005130000-0x0000000005A1B000-memory.dmp family_glupteba behavioral1/memory/2316-3-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/2316-24-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/2316-52-0x0000000005130000-0x0000000005A1B000-memory.dmp family_glupteba behavioral1/memory/2316-57-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/940-59-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/940-88-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/940-120-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/940-123-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/940-155-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/1708-159-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/1708-189-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/1708-240-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral1/memory/1708-261-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4080 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 1708 csrss.exe 4172 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3198953144-1466794930-246379610-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\S-1-5-21-3198953144-1466794930-246379610-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe File created C:\Windows\rss\csrss.exe b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.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 4952 schtasks.exe 3216 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,-931 = "Coordinated Universal Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates 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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich 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 Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs 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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates 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\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.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\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.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\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 46 IoCs
pid Process 3376 powershell.exe 3376 powershell.exe 2316 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 2316 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 3976 powershell.exe 3976 powershell.exe 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 4316 powershell.exe 4316 powershell.exe 4536 powershell.exe 4536 powershell.exe 224 powershell.exe 224 powershell.exe 2824 powershell.exe 2824 powershell.exe 4476 powershell.exe 4476 powershell.exe 4172 injector.exe 4172 injector.exe 4172 injector.exe 4172 injector.exe 4172 injector.exe 4172 injector.exe 1708 csrss.exe 1708 csrss.exe 4172 injector.exe 4172 injector.exe 4172 injector.exe 4172 injector.exe 4172 injector.exe 4172 injector.exe 1708 csrss.exe 1708 csrss.exe 4172 injector.exe 4172 injector.exe 4172 injector.exe 4172 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 3376 powershell.exe Token: SeDebugPrivilege 2316 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Token: SeImpersonatePrivilege 2316 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe Token: SeDebugPrivilege 3976 powershell.exe Token: SeDebugPrivilege 4316 powershell.exe Token: SeDebugPrivilege 4536 powershell.exe Token: SeDebugPrivilege 224 powershell.exe Token: SeDebugPrivilege 2824 powershell.exe Token: SeDebugPrivilege 4476 powershell.exe Token: SeSystemEnvironmentPrivilege 1708 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2316 wrote to memory of 3376 2316 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 92 PID 2316 wrote to memory of 3376 2316 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 92 PID 2316 wrote to memory of 3376 2316 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 92 PID 940 wrote to memory of 3976 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 97 PID 940 wrote to memory of 3976 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 97 PID 940 wrote to memory of 3976 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 97 PID 940 wrote to memory of 3788 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 100 PID 940 wrote to memory of 3788 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 100 PID 3788 wrote to memory of 4080 3788 cmd.exe 102 PID 3788 wrote to memory of 4080 3788 cmd.exe 102 PID 940 wrote to memory of 4316 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 103 PID 940 wrote to memory of 4316 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 103 PID 940 wrote to memory of 4316 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 103 PID 940 wrote to memory of 4536 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 105 PID 940 wrote to memory of 4536 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 105 PID 940 wrote to memory of 4536 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 105 PID 940 wrote to memory of 1708 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 109 PID 940 wrote to memory of 1708 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 109 PID 940 wrote to memory of 1708 940 b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe 109 PID 1708 wrote to memory of 224 1708 csrss.exe 110 PID 1708 wrote to memory of 224 1708 csrss.exe 110 PID 1708 wrote to memory of 224 1708 csrss.exe 110 PID 1708 wrote to memory of 2824 1708 csrss.exe 116 PID 1708 wrote to memory of 2824 1708 csrss.exe 116 PID 1708 wrote to memory of 2824 1708 csrss.exe 116 PID 1708 wrote to memory of 4476 1708 csrss.exe 118 PID 1708 wrote to memory of 4476 1708 csrss.exe 118 PID 1708 wrote to memory of 4476 1708 csrss.exe 118 PID 1708 wrote to memory of 4172 1708 csrss.exe 120 PID 1708 wrote to memory of 4172 1708 csrss.exe 120 -
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:2316 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3376
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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:940 -
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:3976
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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:3788 -
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:4080
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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:4316
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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:4536
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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.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1708 -
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:224
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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:4952
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3176
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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:2824
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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:4476
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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:4172
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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:3216
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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
MD5c0be93300e10a14c92ebade0ae236cce
SHA190f2c1dfee991cbd685770c41eef009de2001df3
SHA2563eea2b860464f6687a4831ab2ccedb4a18ffc541090beb9f7e3ee314c78cb073
SHA51276c581ce143b2efc58e1310d962171b354ee336551bf24886180dec53677987cc740ab819de2e2c89b68c7bd70e36e5bd048db74e4d41d3576019c7298724079
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e13a13d2ec82433354edd34fe6b8f419
SHA130d729f09f1606dd9e5f6525b127e3492783e505
SHA256392caa89af2a2520021a064d14eade80f2816ddfe97ff484889ba026473ecfb6
SHA5127cefaed62e597507aba95002cd08ba68714bfd59e7e69916dade8fa964f83fd15b2e0dd6b2b1da157102b57f627d671116d20d2d86eab4af281fefa377c3bb04
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5268a53ccc7c07dbcf4515c34fe8bd51f
SHA18607761c31d626d7af5660bd094f184bbab1baf2
SHA256911c9c7fb870369c1ee8d9e7dc56c90a922efe226154c171459bcc250ec3c550
SHA512f9ce7dd2e78dc72e08eba1a9f925b477b099da0b4c2de75a56f04bc9fbca1e9fc326bf9df10725bbd85a9171aafca38c6d9e14c57c3fac29c7710fabbea0efcf
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bf5c9e2e55b6f9012c2d36d3ed0b41c8
SHA1035b66b3f545a958cbab10fcfd7f6e14d68aff41
SHA25624181d99b5c14314743628367879c48034ae2d43a25b4b00b6ac9a87560b85d0
SHA51219ca08c255555dc143cf0577795188c51effbaffc75801118a8627b931136762601df4a02d3bfba2903ca5cb36541a67d332491ef8ee0b946681bc0dfb6bf8ac
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD540b13eef598cbccd85114246d3c080cf
SHA138cbb3dba70e4792824ea2b5a6a7040842cbf9ec
SHA25622ecd9fa8cbff2fee9caeea4e9430bd21c0d2e1ef6ad13bb7fec4158450b3610
SHA51219ebac3710889d5d915bea11bc8ead17d0a421183c828700c40f552a02e9339d4b0fe3817955d59e3c64cbfd3209668339bcb4949ef0ebae757bf2cbc1b6cb00
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Filesize
4.2MB
MD51b21502f0167e0dc81c2fcf36db2f3b9
SHA1ba2f6c735edd994c897d3446253b991223f38a9f
SHA256b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da
SHA512e67def3b4817154bd36a725c175b8bee9c7189904491e6bcb146055693bd9328a7ac67b364e13aa0078e9b175c3279d762749c962a1804becd3953a5d05a19b5