Analysis
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max time kernel
156s -
max time network
162s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
17/04/2024, 15:49
Static task
static1
Behavioral task
behavioral1
Sample
27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe
Resource
win10v2004-20240412-en
General
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Target
27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe
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Size
4.2MB
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MD5
7740947cbe5a6c59c7a11b89f8072f28
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SHA1
07ad653f241fa283d00a5fdbb8da836ed32b8497
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SHA256
27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3
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SHA512
3e9158e3d71df4589e3657f958739960fea7bb4b6c987bf6ece1564e52512413da11237824ae5d773647f09715669a816f23715701eb68d1ca67e8f7af01dbce
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SSDEEP
98304:mz7Cg0ld9bGpeFIidtQ9zICqBAsCsR7hN5aqRYTU7V:M7NcfZtQ9LJEd3aOYT+V
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/740-2-0x0000000005370000-0x0000000005C5B000-memory.dmp family_glupteba behavioral2/memory/740-3-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/740-22-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/740-26-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/740-41-0x0000000005370000-0x0000000005C5B000-memory.dmp family_glupteba behavioral2/memory/740-57-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4728-60-0x0000000005250000-0x0000000005B3B000-memory.dmp family_glupteba behavioral2/memory/4728-61-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4728-89-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4728-119-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4728-121-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4728-148-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4728-153-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/3740-187-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/3740-246-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/3740-254-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/3740-263-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/3740-265-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/3740-267-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/3740-269-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1660 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3740 csrss.exe 8 injector.exe 3188 windefender.exe 280 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa1a-257.dat upx behavioral2/memory/3188-262-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/280-264-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/280-268-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2516240262-2296879883-3965305654-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\S-1-5-21-2516240262-2296879883-3965305654-1000\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 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 -
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 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe File created C:\Windows\rss\csrss.exe 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.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 1072 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 3256 schtasks.exe 1056 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.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\26\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2411 = "Marquesas Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.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,-2412 = "Marquesas Standard 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" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-272 = "Greenwich Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates 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\26\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.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,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-931 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4324 powershell.exe 4324 powershell.exe 740 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 740 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4228 powershell.exe 4228 powershell.exe 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 1268 powershell.exe 1268 powershell.exe 2796 powershell.exe 2796 powershell.exe 1720 powershell.exe 1720 powershell.exe 5004 powershell.exe 5004 powershell.exe 3584 powershell.exe 3584 powershell.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 3740 csrss.exe 3740 csrss.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 3740 csrss.exe 3740 csrss.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 3740 csrss.exe 3740 csrss.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4324 powershell.exe Token: SeDebugPrivilege 740 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Token: SeImpersonatePrivilege 740 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Token: SeDebugPrivilege 4228 powershell.exe Token: SeDebugPrivilege 1268 powershell.exe Token: SeDebugPrivilege 2796 powershell.exe Token: SeDebugPrivilege 1720 powershell.exe Token: SeDebugPrivilege 5004 powershell.exe Token: SeDebugPrivilege 3584 powershell.exe Token: SeSystemEnvironmentPrivilege 3740 csrss.exe Token: SeSecurityPrivilege 1072 sc.exe Token: SeSecurityPrivilege 1072 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 740 wrote to memory of 4324 740 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 82 PID 740 wrote to memory of 4324 740 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 82 PID 740 wrote to memory of 4324 740 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 82 PID 4728 wrote to memory of 4228 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 87 PID 4728 wrote to memory of 4228 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 87 PID 4728 wrote to memory of 4228 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 87 PID 4728 wrote to memory of 5032 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 89 PID 4728 wrote to memory of 5032 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 89 PID 5032 wrote to memory of 1660 5032 cmd.exe 91 PID 5032 wrote to memory of 1660 5032 cmd.exe 91 PID 4728 wrote to memory of 1268 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 92 PID 4728 wrote to memory of 1268 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 92 PID 4728 wrote to memory of 1268 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 92 PID 4728 wrote to memory of 2796 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 94 PID 4728 wrote to memory of 2796 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 94 PID 4728 wrote to memory of 2796 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 94 PID 4728 wrote to memory of 3740 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 96 PID 4728 wrote to memory of 3740 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 96 PID 4728 wrote to memory of 3740 4728 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 96 PID 3740 wrote to memory of 1720 3740 csrss.exe 97 PID 3740 wrote to memory of 1720 3740 csrss.exe 97 PID 3740 wrote to memory of 1720 3740 csrss.exe 97 PID 3740 wrote to memory of 5004 3740 csrss.exe 103 PID 3740 wrote to memory of 5004 3740 csrss.exe 103 PID 3740 wrote to memory of 5004 3740 csrss.exe 103 PID 3740 wrote to memory of 3584 3740 csrss.exe 105 PID 3740 wrote to memory of 3584 3740 csrss.exe 105 PID 3740 wrote to memory of 3584 3740 csrss.exe 105 PID 3740 wrote to memory of 8 3740 csrss.exe 107 PID 3740 wrote to memory of 8 3740 csrss.exe 107 PID 3188 wrote to memory of 1544 3188 windefender.exe 113 PID 3188 wrote to memory of 1544 3188 windefender.exe 113 PID 3188 wrote to memory of 1544 3188 windefender.exe 113 PID 1544 wrote to memory of 1072 1544 cmd.exe 114 PID 1544 wrote to memory of 1072 1544 cmd.exe 114 PID 1544 wrote to memory of 1072 1544 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\27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe"C:\Users\Admin\AppData\Local\Temp\27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:740 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4324
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C:\Users\Admin\AppData\Local\Temp\27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe"C:\Users\Admin\AppData\Local\Temp\27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.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:4728 -
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:4228
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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:5032 -
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:1660
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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:1268
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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:2796
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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:3740 -
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:1720
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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:3256
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2496
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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:5004
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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:3584
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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:8
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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:1056
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3188 -
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:1544 -
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:1072
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:280
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
MD57596e14899c535b6a01cdd37c9cb5d80
SHA1070cd580943b9c38f01749ee5aa93da04a0bb7d3
SHA2563f80acebed8ad2d78fd80f72fde2aa0e0a8c1813cb61f2a80fcc4d4b01fce2d9
SHA5121027a3c5166929534f30c46796a4383906392ba7637f8bd7614180cc263c737e2c4e0ff21b8c428bbaebd6abde7912dba8ec770835e2eae611baabb1575f606c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a7ef6dcd5df7f0cf591e42fa16193079
SHA197a4aea5ed7db221a91fe692c20ab9bfecf6b4c0
SHA25642913169d471ab1d34202dd4841345d4d9da1c5a6543893cce3c4b05842a4273
SHA5120930c0a3c6fdaa8e0e00c52a069cc87891f26695fc8a6b75761bd3c3ffaf703fe7ea3bfaf4800f30be957333c3cdecde649f2e98428f92abfa8711826d4635ac
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD512c10fbc6ebaaa569bda048a252e23c5
SHA1ceeb1bd109dd81c3fd17aedab037702efbb8ad92
SHA256b87ac2faa76b84d70ff070e7ad60402285b96e25a09d8d810870a809bffa4440
SHA51297d6ea9a7c5da254e963dcfa17909533f37770c4ba079bab3844e62253557127f0cb0d47afd214a580f43e32160601820ff1fe029d0b943debfac5e825a82ce7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fda2ac99691a995acfc371865b8d809b
SHA1a3526425460062d63becff880485bafb991bb286
SHA256b2d853f607807cc013af08bab50e08742b179cbe4f2a528475d0a97291301df7
SHA51282937c1f38fc27818a1b07ad93e57a25745986e53aaa03fe22cf6da9c0358d0400b31ade7abb86399ece368594b97245b57a494366d90f315b04241c0c377f5f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f80802320c3973cc67b61a74261e5d3e
SHA153ff68f79dae9343c51f251b8f567f78266ff318
SHA256288aefdd6000e99456e903f3ce002c08ccd88ad70de88ef8892816d456f1373a
SHA51279dd1ea21dee1b43457cf4af83032cd3b568a68e854c1d7a7575f9a55dcd644bdf6f87baae3a465eb9e1bd7df7858481341f02f53afe245ab7a75ea62a1433c6
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Filesize
4.2MB
MD57740947cbe5a6c59c7a11b89f8072f28
SHA107ad653f241fa283d00a5fdbb8da836ed32b8497
SHA25627fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3
SHA5123e9158e3d71df4589e3657f958739960fea7bb4b6c987bf6ece1564e52512413da11237824ae5d773647f09715669a816f23715701eb68d1ca67e8f7af01dbce
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec