Analysis
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max time kernel
149s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
26/04/2024, 03:54
Static task
static1
Behavioral task
behavioral1
Sample
347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe
Resource
win10v2004-20240412-en
General
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Target
347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe
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Size
4.1MB
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MD5
ffcd51b87261f5e146433211d9142f7e
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SHA1
86ce82691d9d268adea3ac04ad49f42f9715ee76
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SHA256
347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527
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SHA512
f6b207c5149455c9b8fb6887bc59de58aa72b5f6175fa5f614ca7ba0d4c3f388e56dafcb8b47b1b6f5f97a86076a3af79ed410e83ddc90d7f5f9ac9908363bbc
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SSDEEP
98304:bGRQeQQeLbhY3YC8OTEShpVlj4GtGZsj8hIKq+MMI+rDxb:bGRQUIYIPOTESx5TwMMI+r1
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/2540-2-0x00000000051D0000-0x0000000005ABB000-memory.dmp family_glupteba behavioral2/memory/2540-3-0x0000000000400000-0x0000000002EE0000-memory.dmp family_glupteba behavioral2/memory/2540-52-0x0000000000400000-0x0000000002EE0000-memory.dmp family_glupteba behavioral2/memory/2540-54-0x00000000051D0000-0x0000000005ABB000-memory.dmp family_glupteba behavioral2/memory/392-57-0x0000000000400000-0x0000000002EE0000-memory.dmp family_glupteba behavioral2/memory/392-102-0x0000000000400000-0x0000000002EE0000-memory.dmp family_glupteba behavioral2/memory/392-130-0x0000000000400000-0x0000000002EE0000-memory.dmp family_glupteba behavioral2/memory/392-148-0x0000000000400000-0x0000000002EE0000-memory.dmp family_glupteba behavioral2/memory/1892-193-0x0000000000400000-0x0000000002EE0000-memory.dmp family_glupteba behavioral2/memory/1892-241-0x0000000000400000-0x0000000002EE0000-memory.dmp family_glupteba behavioral2/memory/1892-243-0x0000000000400000-0x0000000002EE0000-memory.dmp family_glupteba behavioral2/memory/1892-246-0x0000000000400000-0x0000000002EE0000-memory.dmp family_glupteba behavioral2/memory/1892-248-0x0000000000400000-0x0000000002EE0000-memory.dmp family_glupteba behavioral2/memory/1892-249-0x0000000000400000-0x0000000002EE0000-memory.dmp family_glupteba behavioral2/memory/1892-251-0x0000000000400000-0x0000000002EE0000-memory.dmp family_glupteba behavioral2/memory/1892-253-0x0000000000400000-0x0000000002EE0000-memory.dmp family_glupteba behavioral2/memory/1892-255-0x0000000000400000-0x0000000002EE0000-memory.dmp family_glupteba behavioral2/memory/1892-257-0x0000000000400000-0x0000000002EE0000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 5080 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 1892 csrss.exe 3824 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.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 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe File created C:\Windows\rss\csrss.exe 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe -
Program crash 3 IoCs
pid pid_target Process procid_target 2932 392 WerFault.exe 86 5012 392 WerFault.exe 86 3756 392 WerFault.exe 86 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1804 schtasks.exe 2208 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs 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\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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,-2891 = "Sudan Daylight Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.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,-691 = "Tasmania Daylight Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates 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\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4828 powershell.exe 4828 powershell.exe 2540 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 2540 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 628 powershell.exe 628 powershell.exe 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 932 powershell.exe 932 powershell.exe 3528 powershell.exe 3528 powershell.exe 4256 powershell.exe 4256 powershell.exe 2340 powershell.exe 2340 powershell.exe 3460 powershell.exe 3460 powershell.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 1892 csrss.exe 1892 csrss.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 1892 csrss.exe 1892 csrss.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe 3824 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 4828 powershell.exe Token: SeDebugPrivilege 2540 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Token: SeImpersonatePrivilege 2540 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe Token: SeDebugPrivilege 628 powershell.exe Token: SeDebugPrivilege 932 powershell.exe Token: SeDebugPrivilege 3528 powershell.exe Token: SeDebugPrivilege 4256 powershell.exe Token: SeDebugPrivilege 2340 powershell.exe Token: SeDebugPrivilege 3460 powershell.exe Token: SeSystemEnvironmentPrivilege 1892 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2540 wrote to memory of 4828 2540 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 82 PID 2540 wrote to memory of 4828 2540 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 82 PID 2540 wrote to memory of 4828 2540 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 82 PID 392 wrote to memory of 628 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 87 PID 392 wrote to memory of 628 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 87 PID 392 wrote to memory of 628 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 87 PID 392 wrote to memory of 4152 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 89 PID 392 wrote to memory of 4152 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 89 PID 4152 wrote to memory of 5080 4152 cmd.exe 91 PID 4152 wrote to memory of 5080 4152 cmd.exe 91 PID 392 wrote to memory of 932 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 92 PID 392 wrote to memory of 932 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 92 PID 392 wrote to memory of 932 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 92 PID 392 wrote to memory of 3528 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 94 PID 392 wrote to memory of 3528 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 94 PID 392 wrote to memory of 3528 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 94 PID 392 wrote to memory of 1892 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 96 PID 392 wrote to memory of 1892 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 96 PID 392 wrote to memory of 1892 392 347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe 96 PID 1892 wrote to memory of 4256 1892 csrss.exe 104 PID 1892 wrote to memory of 4256 1892 csrss.exe 104 PID 1892 wrote to memory of 4256 1892 csrss.exe 104 PID 1892 wrote to memory of 2340 1892 csrss.exe 109 PID 1892 wrote to memory of 2340 1892 csrss.exe 109 PID 1892 wrote to memory of 2340 1892 csrss.exe 109 PID 1892 wrote to memory of 3460 1892 csrss.exe 112 PID 1892 wrote to memory of 3460 1892 csrss.exe 112 PID 1892 wrote to memory of 3460 1892 csrss.exe 112 PID 1892 wrote to memory of 3824 1892 csrss.exe 114 PID 1892 wrote to memory of 3824 1892 csrss.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\347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe"C:\Users\Admin\AppData\Local\Temp\347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2540 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4828
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C:\Users\Admin\AppData\Local\Temp\347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.exe"C:\Users\Admin\AppData\Local\Temp\347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527.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:392 -
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:628
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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:4152 -
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:5080
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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:932
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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:3528
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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:1892 -
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:4256
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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:1804
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2528
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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:2340
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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:3460
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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:3824
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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:2208
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 7643⤵
- Program crash
PID:2932
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 8163⤵
- Program crash
PID:5012
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 9163⤵
- Program crash
PID:3756
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 392 -ip 3921⤵PID:3908
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 392 -ip 3921⤵PID:4904
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 392 -ip 3921⤵PID:4660
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
MD5fa533e8e829748b611dd259e56339755
SHA1691a0b2f3a6c4cfef6f60da80335bcbf775354a6
SHA256894d317402030f45aa3b12a5beb539f3a1847bbe6e0173b42cf1f98e6ebd9e00
SHA512741a33858244e8c84fd701c7d14384c8fbad165b1ae21a0f27e078f0aa677654d007a0d1d1b0d39e00d0c742af965a726be6c20834756d8a968b1a2e070e51c6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50bae321d786b506b884dadfb11d8192a
SHA128206f7788c4d45bc762b7b11634253e75e3c75f
SHA25627c3db245020fd8722b7539cf9c41636b5738e2d1a001fc6396fc1eace3644fc
SHA51295e2cb00cc648822ae6ede663058b8418a7f3d5415f504d94b134c693fef225c29ec70d73fecad26a886bbd9b9635908b9ebb0016f4175451a9093faa09b1358
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD526baa8e753cba83af4fcc7dac9cabf6c
SHA1b7b7e9a01b9af9c78bf050acff2cc45dd3fcbaaa
SHA256df69a0a845e255417952e43dea9e69e5668529abc525300c7542ab64cf4e12d9
SHA5127a57bdd32aaaf21d61a9d17d55c4be48d6758737165de29cb19755681046100b6f19a35c27bed2160d21726a094974cdeb585e29f677c00c332e92fdf8a4df0d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5766af353466b27236e58f819a6c3bb3a
SHA1cb38f65a3d40809e174da69a26821c6ed5fe2b02
SHA256c64091b38656d2c7e5d919fcca3eb338a02c4ca1173abf07212d5d20faf54f80
SHA512120c32444165b2614f607c02f3f25cb6ed2313192030e5786560be9d3fac3ff6cbad32b90469a5d97998bbf9e071a52b7c8370450e53489e6e2d516ba772d593
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54087a467cc55c9975163f1fbc294f283
SHA17b01e77d546ce373cfcd9ee9311bcd3754819220
SHA256f5465ce8faafa7a0041a42e7eb268adcfcda81febe36b5594b6fc11b35b3d001
SHA5123bff22ca055629d573a1aeeeaba6015ddac4fa9006ce5f1cde3eadc42046aa6d3d4771109948a6efdec99babd24f1e88431b07ba96c64b86d4a82fda685a1423
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Filesize
4.1MB
MD5ffcd51b87261f5e146433211d9142f7e
SHA186ce82691d9d268adea3ac04ad49f42f9715ee76
SHA256347d8dfb910b5273daa4bc66f2c19309ef6bb70234cbd1d7b443f43d85059527
SHA512f6b207c5149455c9b8fb6887bc59de58aa72b5f6175fa5f614ca7ba0d4c3f388e56dafcb8b47b1b6f5f97a86076a3af79ed410e83ddc90d7f5f9ac9908363bbc