Analysis
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max time kernel
150s -
max time network
154s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
17-05-2024 09:48
Static task
static1
Behavioral task
behavioral1
Sample
e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe
Resource
win10v2004-20240508-en
General
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Target
e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe
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Size
4.1MB
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MD5
34669f5e7048bd0e48ddde128d8b41c1
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SHA1
48e22b58a58683745ed1c8bcfd24170ac771a41a
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SHA256
e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37
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SHA512
a8f505bc7147024a2a2a6228e64e46db2a4ec1d44cd1a28f942a65e5c486970e97b91c412ebb586df01698c1b4ca16177358d151f2e316cacc50387b0ed4f6b9
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SSDEEP
98304:shY2qRRjR1paGoDMO/b2fpl9vUYBzPUd5cvaqxgKnFtia5:yYlRLXY4O+pXvrLaqWuc4
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/3844-2-0x0000000004C40000-0x000000000552B000-memory.dmp family_glupteba behavioral2/memory/3844-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3844-24-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3844-54-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3844-55-0x0000000004C40000-0x000000000552B000-memory.dmp family_glupteba behavioral2/memory/3844-52-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3612-66-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3612-129-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1776-202-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1776-209-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1776-221-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1776-223-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1776-226-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1776-230-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1776-233-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1776-236-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1776-238-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1776-242-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 480 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1776 csrss.exe 2424 injector.exe 2136 windefender.exe 3360 windefender.exe -
resource yara_rule behavioral2/files/0x000100000002aa18-213.dat upx behavioral2/memory/2136-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3360-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2136-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3360-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3360-228-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\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 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe File created C:\Windows\rss\csrss.exe e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe File created C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4436 sc.exe -
pid Process 4880 powershell.exe 1440 powershell.exe 4168 powershell.exe 1352 powershell.exe 4476 powershell.exe 1784 powershell.exe 1920 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 2468 schtasks.exe 3512 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-52 = "Greenland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.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,-12 = "Azores Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.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,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4476 powershell.exe 4476 powershell.exe 3844 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 3844 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 1784 powershell.exe 1784 powershell.exe 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 1920 powershell.exe 1920 powershell.exe 4880 powershell.exe 4880 powershell.exe 1440 powershell.exe 1440 powershell.exe 4168 powershell.exe 4168 powershell.exe 1352 powershell.exe 1352 powershell.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 1776 csrss.exe 1776 csrss.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 1776 csrss.exe 1776 csrss.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 1776 csrss.exe 1776 csrss.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4476 powershell.exe Token: SeDebugPrivilege 3844 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Token: SeImpersonatePrivilege 3844 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe Token: SeDebugPrivilege 1784 powershell.exe Token: SeDebugPrivilege 1920 powershell.exe Token: SeDebugPrivilege 4880 powershell.exe Token: SeDebugPrivilege 1440 powershell.exe Token: SeDebugPrivilege 4168 powershell.exe Token: SeDebugPrivilege 1352 powershell.exe Token: SeSystemEnvironmentPrivilege 1776 csrss.exe Token: SeSecurityPrivilege 4436 sc.exe Token: SeSecurityPrivilege 4436 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3844 wrote to memory of 4476 3844 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 82 PID 3844 wrote to memory of 4476 3844 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 82 PID 3844 wrote to memory of 4476 3844 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 82 PID 3612 wrote to memory of 1784 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 87 PID 3612 wrote to memory of 1784 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 87 PID 3612 wrote to memory of 1784 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 87 PID 3612 wrote to memory of 640 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 89 PID 3612 wrote to memory of 640 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 89 PID 640 wrote to memory of 480 640 cmd.exe 91 PID 640 wrote to memory of 480 640 cmd.exe 91 PID 3612 wrote to memory of 1920 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 92 PID 3612 wrote to memory of 1920 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 92 PID 3612 wrote to memory of 1920 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 92 PID 3612 wrote to memory of 4880 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 94 PID 3612 wrote to memory of 4880 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 94 PID 3612 wrote to memory of 4880 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 94 PID 3612 wrote to memory of 1776 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 96 PID 3612 wrote to memory of 1776 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 96 PID 3612 wrote to memory of 1776 3612 e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe 96 PID 1776 wrote to memory of 1440 1776 csrss.exe 97 PID 1776 wrote to memory of 1440 1776 csrss.exe 97 PID 1776 wrote to memory of 1440 1776 csrss.exe 97 PID 1776 wrote to memory of 4168 1776 csrss.exe 102 PID 1776 wrote to memory of 4168 1776 csrss.exe 102 PID 1776 wrote to memory of 4168 1776 csrss.exe 102 PID 1776 wrote to memory of 1352 1776 csrss.exe 105 PID 1776 wrote to memory of 1352 1776 csrss.exe 105 PID 1776 wrote to memory of 1352 1776 csrss.exe 105 PID 1776 wrote to memory of 2424 1776 csrss.exe 107 PID 1776 wrote to memory of 2424 1776 csrss.exe 107 PID 2136 wrote to memory of 4564 2136 windefender.exe 113 PID 2136 wrote to memory of 4564 2136 windefender.exe 113 PID 2136 wrote to memory of 4564 2136 windefender.exe 113 PID 4564 wrote to memory of 4436 4564 cmd.exe 114 PID 4564 wrote to memory of 4436 4564 cmd.exe 114 PID 4564 wrote to memory of 4436 4564 cmd.exe 114 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe"C:\Users\Admin\AppData\Local\Temp\e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3844 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4476
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C:\Users\Admin\AppData\Local\Temp\e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.exe"C:\Users\Admin\AppData\Local\Temp\e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37.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:3612 -
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:1784
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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:640 -
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:480
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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:1920
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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:4880
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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:1776 -
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:1440
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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:3512
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4612
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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:4168
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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:1352
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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:2424
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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:2468
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2136 -
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:4564 -
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:4436
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3360
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
MD54102c3249cda2f2cee0b860851010d49
SHA114157e804eaa1ff61124058af04e9524eaaf4a8d
SHA25646b80b78235073272e319a978ce13cce708e2c27b0e14a8c71fbf686e2d889cd
SHA512c70f9e9f27022e294fe5aee5184267b96bb28d6e56e039a4528e6caec225d6e5c15d060b60b4944a956e49f741b6d46f862ee8d3dc18cfda79355b1c46a06677
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5599f365d7ea95a2a049570b9f4bb467c
SHA10ffc322137a6b3b25fdd7bdcc06deb67f4bd045d
SHA2560b7909a21f7f2e119ad50f7058c68a194d76d3a0a99c4973913a52fdd4159d0c
SHA512211411d9689edbc47b3a29db20d0a6d4f54997bd1361530a8e273a586728804d8fcbd6ab712f9e378a2066b3ad5f43e64c67bcb6505d6b97de1f9b699d11264e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51633153ae1da86dec6421cc5a557a3bf
SHA1bb4340dc03d3dd6f37846bd0e6ffd2fab9e265ac
SHA2568cd7b3bcd1c3e52ca22115e83311e7a027b45eb971bb4dc4ff8d3cee22732cad
SHA512e5501a18992115c08afbe51c333a9f90558562c844a63b7a7dfd71220b8f33108a87fca6e20b59d4059a20fb2b2b7ab1e0bf83d42f71b09cd12806640753ca96
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD589ccc5b3aef27e59d60b9d03c0654790
SHA131270da63da457d305ac8fc1c4d33b8cf406aae9
SHA2565bc2dbbdb54a567799f0e56ed7b0a89b031c33a263f10c1b0990775a787ac3cf
SHA51258c177c32e67064b5499a6a63ac27a84332f6795392a1609d4a860c81b0e8e2b717f21ccc34669ff2977d7ba6047dc91ad97a84c9c7d2b4886491997aedf3bda
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53317c3b38c6f3ee7cea354d0b8a8fde4
SHA1e646ae3b04888eeecc357c9518f0e8b365b48ee0
SHA256a5fec7ddc0f77c860a5dd4ba725e960408be397c62ea77ffcec8913dc5bafd6a
SHA512f48e42089914ac0185104256ff5f82acc67def5118f33465cbd8545dda0f148b9675c8ca3c27144f59b4df587f1339063c36a01ae695fd87c8e402d7e3ba50d7
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Filesize
4.1MB
MD534669f5e7048bd0e48ddde128d8b41c1
SHA148e22b58a58683745ed1c8bcfd24170ac771a41a
SHA256e8a80436b658bba71f456ba70fc0688147f3597d16154d74174bd2498db6da37
SHA512a8f505bc7147024a2a2a6228e64e46db2a4ec1d44cd1a28f942a65e5c486970e97b91c412ebb586df01698c1b4ca16177358d151f2e316cacc50387b0ed4f6b9
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec