Analysis
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max time kernel
150s -
max time network
145s -
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, 15:47
Static task
static1
Behavioral task
behavioral1
Sample
b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe
Resource
win10v2004-20240226-en
General
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Target
b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe
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Size
4.1MB
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MD5
18a553ef1d258cebe523621e65c5d61c
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SHA1
4bd6447ea3c6f42e47e207b30d039c169d0722ac
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SHA256
b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664
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SHA512
76789a726e92b754e7bd632c222a9cc53d2af19aa3a7dd89ecb90a6cc049613b814dc1c9016481689b1784446c9c5c7e1792f471e26f520a6c7f8330700306c7
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SSDEEP
98304:83tbwrB0kIuN3D8bfUXVQCwP9Kpl7QJG8rgohSw8D2z60ht59X5:8dQIuMQA9oQJ/gXD2
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/1100-2-0x0000000002E70000-0x000000000375B000-memory.dmp family_glupteba behavioral2/memory/1100-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1100-52-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1100-53-0x0000000002E70000-0x000000000375B000-memory.dmp family_glupteba behavioral2/memory/1672-152-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2920-205-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1672-211-0x0000000002AD0000-0x0000000002ED6000-memory.dmp family_glupteba behavioral2/memory/2920-217-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2920-220-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2920-224-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2920-227-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2920-229-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2920-232-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2920-236-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2920-239-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2920-241-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2920-244-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2920-248-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2920-251-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3100 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2920 csrss.exe 880 injector.exe 4588 windefender.exe 3520 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9e7-209.dat upx behavioral2/memory/4588-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3520-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4588-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3520-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3520-225-0x0000000000400000-0x00000000008DF000-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\"" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.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 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 -
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 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe File created C:\Windows\rss\csrss.exe b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.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 1816 sc.exe -
pid Process 2064 powershell.exe 4300 powershell.exe 1352 powershell.exe 2092 powershell.exe 2708 powershell.exe 776 powershell.exe 4412 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 3512 schtasks.exe 3808 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,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.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,-2892 = "Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.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,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight 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,-442 = "Arabian Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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\2a\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-11 = "Azores Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-231 = "Hawaiian Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight 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,-2771 = "Omsk Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs 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,-272 = "Greenwich Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.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,-2511 = "Lord Howe Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2571 = "Turks and Caicos Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4412 powershell.exe 4412 powershell.exe 1100 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1100 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 2064 powershell.exe 2064 powershell.exe 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 4300 powershell.exe 4300 powershell.exe 1352 powershell.exe 1352 powershell.exe 2092 powershell.exe 2092 powershell.exe 2708 powershell.exe 2708 powershell.exe 776 powershell.exe 776 powershell.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 2920 csrss.exe 2920 csrss.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 2920 csrss.exe 2920 csrss.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 2920 csrss.exe 2920 csrss.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe 880 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4412 powershell.exe Token: SeDebugPrivilege 1100 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Token: SeImpersonatePrivilege 1100 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Token: SeDebugPrivilege 2064 powershell.exe Token: SeDebugPrivilege 4300 powershell.exe Token: SeDebugPrivilege 1352 powershell.exe Token: SeDebugPrivilege 2092 powershell.exe Token: SeDebugPrivilege 2708 powershell.exe Token: SeDebugPrivilege 776 powershell.exe Token: SeSystemEnvironmentPrivilege 2920 csrss.exe Token: SeSecurityPrivilege 1816 sc.exe Token: SeSecurityPrivilege 1816 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1100 wrote to memory of 4412 1100 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 78 PID 1100 wrote to memory of 4412 1100 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 78 PID 1100 wrote to memory of 4412 1100 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 78 PID 1672 wrote to memory of 2064 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 83 PID 1672 wrote to memory of 2064 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 83 PID 1672 wrote to memory of 2064 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 83 PID 1672 wrote to memory of 4984 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 85 PID 1672 wrote to memory of 4984 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 85 PID 4984 wrote to memory of 3100 4984 cmd.exe 87 PID 4984 wrote to memory of 3100 4984 cmd.exe 87 PID 1672 wrote to memory of 4300 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 88 PID 1672 wrote to memory of 4300 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 88 PID 1672 wrote to memory of 4300 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 88 PID 1672 wrote to memory of 1352 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 90 PID 1672 wrote to memory of 1352 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 90 PID 1672 wrote to memory of 1352 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 90 PID 1672 wrote to memory of 2920 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 92 PID 1672 wrote to memory of 2920 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 92 PID 1672 wrote to memory of 2920 1672 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 92 PID 2920 wrote to memory of 2092 2920 csrss.exe 93 PID 2920 wrote to memory of 2092 2920 csrss.exe 93 PID 2920 wrote to memory of 2092 2920 csrss.exe 93 PID 2920 wrote to memory of 2708 2920 csrss.exe 99 PID 2920 wrote to memory of 2708 2920 csrss.exe 99 PID 2920 wrote to memory of 2708 2920 csrss.exe 99 PID 2920 wrote to memory of 776 2920 csrss.exe 101 PID 2920 wrote to memory of 776 2920 csrss.exe 101 PID 2920 wrote to memory of 776 2920 csrss.exe 101 PID 2920 wrote to memory of 880 2920 csrss.exe 103 PID 2920 wrote to memory of 880 2920 csrss.exe 103 PID 4588 wrote to memory of 4980 4588 windefender.exe 109 PID 4588 wrote to memory of 4980 4588 windefender.exe 109 PID 4588 wrote to memory of 4980 4588 windefender.exe 109 PID 4980 wrote to memory of 1816 4980 cmd.exe 110 PID 4980 wrote to memory of 1816 4980 cmd.exe 110 PID 4980 wrote to memory of 1816 4980 cmd.exe 110 -
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\b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe"C:\Users\Admin\AppData\Local\Temp\b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1100 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4412
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C:\Users\Admin\AppData\Local\Temp\b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe"C:\Users\Admin\AppData\Local\Temp\b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.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:1672 -
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:2064
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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:4984 -
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:3100
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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:4300
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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:1352
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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:2920 -
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:2092
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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:3808
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1708
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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:2708
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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:776
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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:880
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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\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4588 -
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:4980 -
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:1816
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3520
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
MD59cf0b5982368011f5b2c0eaa37ce96ad
SHA11993ba74123ee578e243c9129cdb9c50228f6099
SHA256798e1640c7305dcf2601772c93c651c64ce5af0dc7e24e597050bc9ee673f6c6
SHA512fc1f70cef766e6c6f2273668f0c34ea9e71f0aea510d8c0fdcb57a43868807a08966dd3d1e6cfc0b7072a0eb246bb335d803e20687fc9d3bca673027ece21340
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50b69a0d47b5fa83d590409e16df99ece
SHA1688ab3aec0dd36c0623a05a4faa4cd0935c8a712
SHA256470e979a7f0cc1f8614280bd557f76faed84515eacbcf5530be913770aee63ea
SHA51213f1dada807d2b8f0983fd55a45dfc5c2317510313214284f346d458b7810f5a569421f594b5b7ba9b1d67e3da760f3c3c7acdf15a57538683bbe3a9c5220f6d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD553a37d9b808c80a1359002180b8a80d6
SHA1642064446d29cf32dc68a19b8db99c0b1b801666
SHA25693fb55667d3e96654a69e0e7d695c2d1bf8283826266a13c735ec55af4036e01
SHA5124a7ada3cf8bec818cb060c751cbb52bbdc1f26f59e9de7a57e2e957d6bf4b57a13705f5dc349a2d34ecb0987603092bc95d64f09965129ceecfa11528724a2d0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50f8b61510ab8706dc3240afbb9ada454
SHA13d331e15f7e94cb5a81fb2057ab19b43cd23e693
SHA2569f27b836a3d1d4aaf834ebcbc80e6435cd64ab62022f6193f7d80448ac28ee73
SHA512d4874da87c2867f25cdf13bc67aff39955f5ae1697dbb0c5e996fc799c867a8d1665db94f22ef70e068e4d0835cc519a7aef17f77a2f97fcb09d5d624895b576
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD581c6f4f7cc4e9d2d35df40a6f3ea4a51
SHA1900d22d990bbb657d2dbcb82ebcaa2c15aec6499
SHA256e7aa1b82c3b25a4cc4e8ab553aee18c9b2985ea3cbe4bdfaa52ea5a9f6d0beb8
SHA512eb26eda292a9b08f747447d6d27153b5ea1a4fecdeda85ef1d74caf9356faf0bc7e9b762ee8cd5f4f6a73a938bed56ee1d75b7285ca62da55cae1a2f628d7c7f
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Filesize
4.1MB
MD518a553ef1d258cebe523621e65c5d61c
SHA14bd6447ea3c6f42e47e207b30d039c169d0722ac
SHA256b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664
SHA51276789a726e92b754e7bd632c222a9cc53d2af19aa3a7dd89ecb90a6cc049613b814dc1c9016481689b1784446c9c5c7e1792f471e26f520a6c7f8330700306c7
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec