Analysis
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max time kernel
149s -
max time network
125s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
16/05/2024, 15:53
Static task
static1
Behavioral task
behavioral1
Sample
88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe
Resource
win10v2004-20240508-en
General
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Target
88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe
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Size
4.1MB
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MD5
7360de6ccb3bf2dedd7c45f46723f579
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SHA1
3cb86d7af0ba6ba6ae33feb6a4f3bb68c0e1f1a9
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SHA256
88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66
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SHA512
1793f8bd58e45a57feebeaca1f88df336baf58f1f878828b343323c4402f981504620c45b3228b91b7dbd2fe3d0232722f0333cb9c257cd18fb56659b887c72a
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SSDEEP
98304:03tbwrB0kIuN3D8bfUXVQCwP9Kpl7QJG8rgohSw8D2z60ht59XC:0dQIuMQA9oQJ/gXDx
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/1968-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1968-2-0x0000000002E50000-0x000000000373B000-memory.dmp family_glupteba behavioral2/memory/1968-52-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1968-53-0x0000000002E50000-0x000000000373B000-memory.dmp family_glupteba behavioral2/memory/2368-125-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3264-204-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3264-214-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3264-216-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3264-218-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3264-220-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3264-222-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3264-224-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3264-226-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3264-228-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3264-230-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3264-232-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3264-234-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3264-236-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4896 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3264 csrss.exe 2456 injector.exe 4644 windefender.exe 5008 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9d5-207.dat upx behavioral2/memory/4644-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5008-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4644-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5008-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5008-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3062789476-783164490-2318012559-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Set value (str) \REGISTRY\USER\S-1-5-21-3062789476-783164490-2318012559-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File 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 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe File created C:\Windows\rss\csrss.exe 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1576 sc.exe -
pid Process 1128 powershell.exe 1372 powershell.exe 1256 powershell.exe 4828 powershell.exe 4320 powershell.exe 3252 powershell.exe 2792 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3412 schtasks.exe 2376 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-161 = "Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2751 = "Tomsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2182 = "Astrakhan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-364 = "Middle East Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\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\2a\52C64B7E\@tzres.dll,-2632 = "Norfolk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2591 = "Tocantins Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-932 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4828 powershell.exe 4828 powershell.exe 1968 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 1968 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 4320 powershell.exe 4320 powershell.exe 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 3252 powershell.exe 3252 powershell.exe 2792 powershell.exe 2792 powershell.exe 1128 powershell.exe 1128 powershell.exe 1372 powershell.exe 1372 powershell.exe 1256 powershell.exe 1256 powershell.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 3264 csrss.exe 3264 csrss.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 3264 csrss.exe 3264 csrss.exe 2456 injector.exe 2456 injector.exe 3264 csrss.exe 3264 csrss.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe 2456 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4828 powershell.exe Token: SeDebugPrivilege 1968 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Token: SeImpersonatePrivilege 1968 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe Token: SeDebugPrivilege 4320 powershell.exe Token: SeDebugPrivilege 3252 powershell.exe Token: SeDebugPrivilege 2792 powershell.exe Token: SeDebugPrivilege 1128 powershell.exe Token: SeDebugPrivilege 1372 powershell.exe Token: SeDebugPrivilege 1256 powershell.exe Token: SeSystemEnvironmentPrivilege 3264 csrss.exe Token: SeSecurityPrivilege 1576 sc.exe Token: SeSecurityPrivilege 1576 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1968 wrote to memory of 4828 1968 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 81 PID 1968 wrote to memory of 4828 1968 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 81 PID 1968 wrote to memory of 4828 1968 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 81 PID 2368 wrote to memory of 4320 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 86 PID 2368 wrote to memory of 4320 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 86 PID 2368 wrote to memory of 4320 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 86 PID 2368 wrote to memory of 5008 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 88 PID 2368 wrote to memory of 5008 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 88 PID 5008 wrote to memory of 4896 5008 cmd.exe 90 PID 5008 wrote to memory of 4896 5008 cmd.exe 90 PID 2368 wrote to memory of 3252 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 91 PID 2368 wrote to memory of 3252 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 91 PID 2368 wrote to memory of 3252 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 91 PID 2368 wrote to memory of 2792 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 93 PID 2368 wrote to memory of 2792 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 93 PID 2368 wrote to memory of 2792 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 93 PID 2368 wrote to memory of 3264 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 95 PID 2368 wrote to memory of 3264 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 95 PID 2368 wrote to memory of 3264 2368 88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe 95 PID 3264 wrote to memory of 1128 3264 csrss.exe 96 PID 3264 wrote to memory of 1128 3264 csrss.exe 96 PID 3264 wrote to memory of 1128 3264 csrss.exe 96 PID 3264 wrote to memory of 1372 3264 csrss.exe 102 PID 3264 wrote to memory of 1372 3264 csrss.exe 102 PID 3264 wrote to memory of 1372 3264 csrss.exe 102 PID 3264 wrote to memory of 1256 3264 csrss.exe 104 PID 3264 wrote to memory of 1256 3264 csrss.exe 104 PID 3264 wrote to memory of 1256 3264 csrss.exe 104 PID 3264 wrote to memory of 2456 3264 csrss.exe 106 PID 3264 wrote to memory of 2456 3264 csrss.exe 106 PID 4644 wrote to memory of 1636 4644 windefender.exe 112 PID 4644 wrote to memory of 1636 4644 windefender.exe 112 PID 4644 wrote to memory of 1636 4644 windefender.exe 112 PID 1636 wrote to memory of 1576 1636 cmd.exe 113 PID 1636 wrote to memory of 1576 1636 cmd.exe 113 PID 1636 wrote to memory of 1576 1636 cmd.exe 113 -
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\88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe"C:\Users\Admin\AppData\Local\Temp\88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1968 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4828
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C:\Users\Admin\AppData\Local\Temp\88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.exe"C:\Users\Admin\AppData\Local\Temp\88a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66.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:2368 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4320
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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:5008 -
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:4896
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3252
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2792
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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:3264 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1128
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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:3412
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:876
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1372
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1256
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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:2456
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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:2376
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4644 -
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:1636 -
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:1576
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:5008
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
MD57eb6969a1024bb6f5ef1522c01004a5e
SHA1825de619bd90fe736388554c3ca561273c4f8070
SHA256740480ae74cfcdca30342d2512697926e6685ad59e432ab137c18f58753de7a4
SHA5128b13e3555565188d137add50eab13007459c953eac9d247c309cfff21703bf331c508ebb4d57030e3cb84f459738c9fce65f5a907e051a2dda4f4690e329a0ac
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d088a51ea72f4fc3022cc527635fc7e6
SHA147d27c545bf17121e1fa0a6755288a66f7afa773
SHA256a3a227daf0bf497421650de7ed0becfb7cf72089805cda40a92ac3f51e024f70
SHA512d8bb6623c972badb8e7e3cc24528f10fed38379e278cd948b82f7c5555882ee82c774e297bb4d48a5f65563bca01db7ffbd0d3468abd248811230e50e4221b74
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD565262712fbd45a0fa6ba878b78b7ab1a
SHA18c15330835733d322d9184ad2583f726e1e3dd75
SHA2560059e9412d23a17dabd14dafe4d340dd15d0690389d38dd1a83b48321225987b
SHA512dda8c040dfbbfe8da8115c500bd819f40bb8d9e5e9bb06d4ce35c8eab9b5ee6fbc3dddf314b0ebfe3a69dc39111c14c1626155ac861133c77429f8528c67479a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5222ba0faf0701409120b7f6efc4f78c5
SHA1ddc43307926921973de37755e8b6838b57c1f9b7
SHA2568e65d54e894cc494becfcb7800285dd33fe9e2a464308e28b423d7eac38f7207
SHA5127d84b866bc92fafabe7b3cc51d6e803c3841432e219a889fa27d6f839003efdf5237a59d97dfd2dd02a62cf88315f59dbd0bcc1301b9d4bad82ee616f29915f5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56d87b4c052b4b48018c3825a15f84bee
SHA1bf27b91dd9bceb39b01b6714cc23fb82a7e1f8c4
SHA256114eeac0915ce1ad9c98e0052d95cc58afba79272a090346d89674bc2add755c
SHA51294a5ac91a9e577f9da9e9ffedf0613bf0ca393c395e6f27f49778b2c0523bbc11061d254a596f6435008a8d0cb6bc76201d80a1e708ed9b09d43c266d1d966e6
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Filesize
4.1MB
MD57360de6ccb3bf2dedd7c45f46723f579
SHA13cb86d7af0ba6ba6ae33feb6a4f3bb68c0e1f1a9
SHA25688a4b8daf7c17f7319b88f8b67acbc72b5cb228e82892a0be110e964d11e0f66
SHA5121793f8bd58e45a57feebeaca1f88df336baf58f1f878828b343323c4402f981504620c45b3228b91b7dbd2fe3d0232722f0333cb9c257cd18fb56659b887c72a
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec