Analysis
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max time kernel
149s -
max time network
143s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
18/04/2024, 20:24
Static task
static1
Behavioral task
behavioral1
Sample
b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe
Resource
win10v2004-20240412-en
General
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Target
b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe
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Size
4.2MB
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MD5
a37aafd52fa58b0518a5abfc1126a3bd
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SHA1
3d8eb1846a4bb16442012e45675533e44d1f49e2
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SHA256
b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f
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SHA512
ddeab36141f0aaa88f56200dba786681a3cd47ecf4d3e731d015ce0b430571d8845fc1c7449b3ee8058415b9bbcd41024d4f2086e7eb0699385ced41083af622
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SSDEEP
98304:uRe06RCZ8qdKnAdKFoI0tkW+Km95muXXLdVYjOy3P9U/:zUuqUAddtM55murAiy92
Malware Config
Signatures
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Glupteba payload 17 IoCs
resource yara_rule behavioral2/memory/3396-2-0x0000000005290000-0x0000000005B7B000-memory.dmp family_glupteba behavioral2/memory/3396-3-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/3396-51-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/3396-53-0x0000000005290000-0x0000000005B7B000-memory.dmp family_glupteba behavioral2/memory/5004-55-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/5004-143-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/852-244-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/852-253-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/852-254-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/852-256-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/852-258-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/852-261-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/852-263-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/852-264-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/852-266-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/852-268-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/852-271-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1216 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 852 csrss.exe 1048 injector.exe 4912 windefender.exe 4548 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9e8-247.dat upx behavioral2/memory/4912-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4548-255-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4548-259-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe File created C:\Windows\rss\csrss.exe b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.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 1960 sc.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 4204 schtasks.exe 1516 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust 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\26\52C64B7E\@tzres.dll,-2182 = "Astrakhan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 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\26\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2336 powershell.exe 2336 powershell.exe 3396 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 3396 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 1680 powershell.exe 1680 powershell.exe 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 2044 powershell.exe 2044 powershell.exe 2636 powershell.exe 2636 powershell.exe 3904 powershell.exe 3904 powershell.exe 2916 powershell.exe 2916 powershell.exe 4972 powershell.exe 4972 powershell.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 852 csrss.exe 852 csrss.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 852 csrss.exe 852 csrss.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 852 csrss.exe 852 csrss.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe 1048 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2336 powershell.exe Token: SeDebugPrivilege 3396 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Token: SeImpersonatePrivilege 3396 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe Token: SeDebugPrivilege 1680 powershell.exe Token: SeDebugPrivilege 2044 powershell.exe Token: SeDebugPrivilege 2636 powershell.exe Token: SeDebugPrivilege 3904 powershell.exe Token: SeDebugPrivilege 2916 powershell.exe Token: SeDebugPrivilege 4972 powershell.exe Token: SeSystemEnvironmentPrivilege 852 csrss.exe Token: SeSecurityPrivilege 1960 sc.exe Token: SeSecurityPrivilege 1960 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3396 wrote to memory of 2336 3396 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 82 PID 3396 wrote to memory of 2336 3396 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 82 PID 3396 wrote to memory of 2336 3396 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 82 PID 5004 wrote to memory of 1680 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 87 PID 5004 wrote to memory of 1680 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 87 PID 5004 wrote to memory of 1680 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 87 PID 5004 wrote to memory of 792 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 89 PID 5004 wrote to memory of 792 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 89 PID 792 wrote to memory of 1216 792 cmd.exe 91 PID 792 wrote to memory of 1216 792 cmd.exe 91 PID 5004 wrote to memory of 2044 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 92 PID 5004 wrote to memory of 2044 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 92 PID 5004 wrote to memory of 2044 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 92 PID 5004 wrote to memory of 2636 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 94 PID 5004 wrote to memory of 2636 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 94 PID 5004 wrote to memory of 2636 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 94 PID 5004 wrote to memory of 852 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 96 PID 5004 wrote to memory of 852 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 96 PID 5004 wrote to memory of 852 5004 b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe 96 PID 852 wrote to memory of 3904 852 csrss.exe 97 PID 852 wrote to memory of 3904 852 csrss.exe 97 PID 852 wrote to memory of 3904 852 csrss.exe 97 PID 852 wrote to memory of 2916 852 csrss.exe 102 PID 852 wrote to memory of 2916 852 csrss.exe 102 PID 852 wrote to memory of 2916 852 csrss.exe 102 PID 852 wrote to memory of 4972 852 csrss.exe 105 PID 852 wrote to memory of 4972 852 csrss.exe 105 PID 852 wrote to memory of 4972 852 csrss.exe 105 PID 852 wrote to memory of 1048 852 csrss.exe 107 PID 852 wrote to memory of 1048 852 csrss.exe 107 PID 4912 wrote to memory of 2532 4912 windefender.exe 113 PID 4912 wrote to memory of 2532 4912 windefender.exe 113 PID 4912 wrote to memory of 2532 4912 windefender.exe 113 PID 2532 wrote to memory of 1960 2532 cmd.exe 114 PID 2532 wrote to memory of 1960 2532 cmd.exe 114 PID 2532 wrote to memory of 1960 2532 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\b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe"C:\Users\Admin\AppData\Local\Temp\b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3396 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2336
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C:\Users\Admin\AppData\Local\Temp\b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.exe"C:\Users\Admin\AppData\Local\Temp\b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f.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:5004 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1680
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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:792 -
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:1216
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2044
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2636
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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:852 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3904
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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:1516
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3856
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2916
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4972
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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:1048
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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:4204
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4912 -
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:2532 -
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:1960
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4548
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
MD5683927acd28526394af4a23aa07f4eeb
SHA1b344a1c693fadb6c1bcf787bde4306bf61a4632a
SHA256fec2f9bddee4406e71b58a5a6b10d135e5dc5cec725097cb66e60a6cda39e068
SHA512bba9ad4542ea66a1c3bcfd9356a6501c06e395d2d62647cfaa255e303fadd1fbf77cafae15c227bed158fcccf7bbb5f355f71dff716a4aa4443da240ccff53e2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ed6a05e4de5b16c86388515a3789c8f0
SHA100fd880873c9df450f869f9c6dafeafabadc7a92
SHA25604d807be3110706f1562e6f092b5087d647dc1fb563cebf3f107d8770a40fd8a
SHA5125e8d8d4480936da2ae4e056824e921c23921d278d31ec2d58d6d52cecaaf6bcfbf5c0d3072f95dfa81a121a5d485681f58d1a4649f06e7da2e385c3232079790
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD514d3fd2c1f2d795915c31c25ccf84c02
SHA19d34c9efd33a8a70ca0cd105aba3a5d58c333fd1
SHA2569fb75af5221b41c505f90e51a8ed5568e26545803c43cf5d9706cab55e310f2a
SHA5123d6fe961ebfa2d527a9f5792a38ac658215ea0db35f204305495df41d8b149800e526cde4ec070ef1fa210c327e0b4333e19df02b202ac3c94b5e5f694cc7e2c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f2490be4277cad0a48a1fb68a23216ee
SHA1a28de27cf7e1197b60cc497c0d5899facb26b17d
SHA2561a94b0c4a6ecfa271e49fbc41b70648f63bbe373cdbce8c849ebd5aac053e22b
SHA51270c6d45765704cee169139a43e46609836003beba443f378cbd6847f1e05838dd69966538565431fccb7f96d8df583ba983a65098e439529f47a28f1c50b75f8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b06e3eeb3f5d4a37641eadd717e30ee8
SHA14793c6959df348148b76819b8c4f6c4fbfc02632
SHA25629f36e183ba3dc27fcded1e154e206a507698504ff881cedb91df7de13e892a0
SHA51244b57fb511bb4b63eda219d6953df51e4554d509d5181dafa0829a357b10a457ab76ebbf231bad10e6e22b9501afbba4d3facbad9243ee89151e8df39a72754b
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Filesize
4.2MB
MD5a37aafd52fa58b0518a5abfc1126a3bd
SHA13d8eb1846a4bb16442012e45675533e44d1f49e2
SHA256b737257b9c3b41c65049dff6096f09d2d1eb787a2a7ea92f65b64b86fed5c84f
SHA512ddeab36141f0aaa88f56200dba786681a3cd47ecf4d3e731d015ce0b430571d8845fc1c7449b3ee8058415b9bbcd41024d4f2086e7eb0699385ced41083af622
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec