Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-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 19 IoCs
resource yara_rule behavioral1/memory/904-2-0x00000000051C0000-0x0000000005AAB000-memory.dmp family_glupteba behavioral1/memory/904-3-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral1/memory/904-25-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral1/memory/904-32-0x00000000051C0000-0x0000000005AAB000-memory.dmp family_glupteba behavioral1/memory/904-58-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral1/memory/904-59-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral1/memory/4268-61-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral1/memory/4268-76-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral1/memory/4268-98-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral1/memory/4268-157-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral1/memory/1604-222-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral1/memory/1604-259-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral1/memory/1604-269-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral1/memory/1604-272-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral1/memory/1604-275-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral1/memory/1604-278-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral1/memory/1604-281-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral1/memory/1604-284-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral1/memory/1604-287-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3944 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1604 csrss.exe 2288 injector.exe 5060 windefender.exe 536 windefender.exe -
resource yara_rule behavioral1/files/0x00080000000233f3-262.dat upx behavioral1/memory/5060-267-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/536-270-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/536-276-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\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 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe File created C:\Windows\rss\csrss.exe 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe File created C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 392 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 1088 schtasks.exe 2184 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,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-302 = "Romance Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.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\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.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\@tzres.dll,-1471 = "Magadan Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight 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,-872 = "Pakistan Standard Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.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,-2371 = "Easter Island Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-162 = "Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2322 = "Sakhalin 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\@tzres.dll,-631 = "Tokyo Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates 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\@tzres.dll,-272 = "Greenwich Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2892 = "Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1721 = "Libya 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" 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.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\26\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1088 powershell.exe 1088 powershell.exe 904 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 904 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 2248 powershell.exe 2248 powershell.exe 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 2440 powershell.exe 2440 powershell.exe 2116 powershell.exe 2116 powershell.exe 3836 powershell.exe 3836 powershell.exe 4364 powershell.exe 4364 powershell.exe 3652 powershell.exe 3652 powershell.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 1604 csrss.exe 1604 csrss.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 1604 csrss.exe 1604 csrss.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 1604 csrss.exe 1604 csrss.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1088 powershell.exe Token: SeDebugPrivilege 904 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Token: SeImpersonatePrivilege 904 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe Token: SeDebugPrivilege 2248 powershell.exe Token: SeDebugPrivilege 2440 powershell.exe Token: SeDebugPrivilege 2116 powershell.exe Token: SeDebugPrivilege 3836 powershell.exe Token: SeDebugPrivilege 4364 powershell.exe Token: SeDebugPrivilege 3652 powershell.exe Token: SeSystemEnvironmentPrivilege 1604 csrss.exe Token: SeSecurityPrivilege 392 sc.exe Token: SeSecurityPrivilege 392 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 904 wrote to memory of 1088 904 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 85 PID 904 wrote to memory of 1088 904 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 85 PID 904 wrote to memory of 1088 904 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 85 PID 4268 wrote to memory of 2248 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 90 PID 4268 wrote to memory of 2248 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 90 PID 4268 wrote to memory of 2248 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 90 PID 4268 wrote to memory of 4896 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 93 PID 4268 wrote to memory of 4896 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 93 PID 4896 wrote to memory of 3944 4896 cmd.exe 95 PID 4896 wrote to memory of 3944 4896 cmd.exe 95 PID 4268 wrote to memory of 2440 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 96 PID 4268 wrote to memory of 2440 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 96 PID 4268 wrote to memory of 2440 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 96 PID 4268 wrote to memory of 2116 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 100 PID 4268 wrote to memory of 2116 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 100 PID 4268 wrote to memory of 2116 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 100 PID 4268 wrote to memory of 1604 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 102 PID 4268 wrote to memory of 1604 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 102 PID 4268 wrote to memory of 1604 4268 27fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3.exe 102 PID 1604 wrote to memory of 3836 1604 csrss.exe 103 PID 1604 wrote to memory of 3836 1604 csrss.exe 103 PID 1604 wrote to memory of 3836 1604 csrss.exe 103 PID 1604 wrote to memory of 4364 1604 csrss.exe 109 PID 1604 wrote to memory of 4364 1604 csrss.exe 109 PID 1604 wrote to memory of 4364 1604 csrss.exe 109 PID 1604 wrote to memory of 3652 1604 csrss.exe 111 PID 1604 wrote to memory of 3652 1604 csrss.exe 111 PID 1604 wrote to memory of 3652 1604 csrss.exe 111 PID 1604 wrote to memory of 2288 1604 csrss.exe 113 PID 1604 wrote to memory of 2288 1604 csrss.exe 113 PID 5060 wrote to memory of 3300 5060 windefender.exe 119 PID 5060 wrote to memory of 3300 5060 windefender.exe 119 PID 5060 wrote to memory of 3300 5060 windefender.exe 119 PID 3300 wrote to memory of 392 3300 cmd.exe 120 PID 3300 wrote to memory of 392 3300 cmd.exe 120 PID 3300 wrote to memory of 392 3300 cmd.exe 120 -
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:904 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1088
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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:4268 -
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:2248
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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:4896 -
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:3944
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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:2440
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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:2116
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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:1604 -
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:3836
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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:1088
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2820
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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:4364
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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:3652
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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:2288
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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:2184
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:5060 -
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:3300 -
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:392
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:536
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a473c44fc1c061735a3d061a11c33b74
SHA14387d0e3870ed129ce24f8fa09b9d79efcc8be8c
SHA25650d7131c9bdcebc396e823abd4e3b63f506f17ea08446fec6a42b82ad9bce0e5
SHA512abade1fa1a96a36a7c8a06d283b9541f01a60cc46ff71c64d82d1251401e8400b159405a3ca4d72df7f9fcb2c6f4a6d8990e36e702ea67c6285df0b5e1f60464
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a50db5de0a7193bd8aaa782e423e48e2
SHA1d5437cd38ce78f07c7818dd502c8896cbb039153
SHA2568ca52ab8e0355641738a0e58cf02d08b540f9e1cfe93e49c23d63da8dd389053
SHA5127c169625868139aa6961810fbf055a7e07948ae0cd0473bfbaf20f7498c3d493c7d8f0999d805b505ba32528644d4f0d11f6cdc06b8e9d4bbc966e895905a7ef
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD594c2a91dd52029cde57ca63bc53d7044
SHA14c6e420db3d337da70a36465f87706d39cc7b621
SHA256c227c5ccc5ebd09373974f53cd465e027955ad68c50eabf83a5ba75b55113430
SHA5124681033a1574c287651c0aa430fd2b67173114435c69e6d3ae79df38ca506123d38370dd1fe0489ad3e46e0fbe8604214e8125c331b0c2c2e0dbbc351aef7842
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e5dff8501a72db43864fb306db194376
SHA153a1bf749b3e5da34a6880b1c05bdf7ae573055f
SHA2560d661984e1b9e711494b4c6fd3d49750b05b945bb42e85995720751edacd9fa4
SHA512df22d3ce9dc84a81a6b281072e53452c5a66c7af5b2479a7cd613446f29aebcdb359a546305799a1205a8c362bfff292ba2c435cd9bdfc131d8a65808aec05c5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57fa6eb1c8a8b1a71cde7b81496e5cb01
SHA1b7253ed4830c05b7f43a2f05d64463b3bc304436
SHA2563454a75be13df20680f8ac9720ad0ead40731786b0db80249553659234474be5
SHA5124585b8387ef4be0054b7bb7a7c961f58ddf538e7d2f8e07c5c7952756c6f53d530a562846df9ca6cf81265ffddc44f88091addeed4e0a25e30cb1c87fe70532f
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Filesize
4.2MB
MD57740947cbe5a6c59c7a11b89f8072f28
SHA107ad653f241fa283d00a5fdbb8da836ed32b8497
SHA25627fca0ff589e04a0a4ef1b3ae7d8ebfc60441427af8eec7428761931315631b3
SHA5123e9158e3d71df4589e3657f958739960fea7bb4b6c987bf6ece1564e52512413da11237824ae5d773647f09715669a816f23715701eb68d1ca67e8f7af01dbce
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec