Analysis
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max time kernel
150s -
max time network
153s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
22/04/2024, 15:06
Static task
static1
Behavioral task
behavioral1
Sample
a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe
Resource
win10v2004-20240412-en
General
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Target
a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe
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Size
4.2MB
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MD5
86b3448382833a2718e2563147a1f03d
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SHA1
21e2f23bdd3ab31aa68ffd8bdc8aeb7a282e309e
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SHA256
a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9
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SHA512
355f5b10a4b6ee73b9559d7545684cd20bc93aba1fc309cc53cd0575f3b3a0459be05a6d1566b210fc4901b854163e46ed8011822dd252f4b4e3655e797283f4
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SSDEEP
98304:2mG+ILlmwFOXti2i4yafdSAta9/r6eiiYAoaUebjXDBdA:7V62/i4yafdST/r6FFcTBdA
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/4676-2-0x0000000005180000-0x0000000005A6B000-memory.dmp family_glupteba behavioral2/memory/4676-3-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/4676-51-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/4676-53-0x0000000005180000-0x0000000005A6B000-memory.dmp family_glupteba behavioral2/memory/1624-55-0x00000000051C0000-0x0000000005AAB000-memory.dmp family_glupteba behavioral2/memory/1624-56-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1624-89-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1624-139-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1624-149-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/4776-215-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/4776-250-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/4776-252-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/4776-254-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/4776-264-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/4776-267-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/4776-270-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/4776-273-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/4776-276-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/4776-279-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2788 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4776 csrss.exe 1996 injector.exe 3096 windefender.exe 3140 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa13-257.dat upx behavioral2/memory/3096-261-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3140-265-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3140-271-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Set value (str) \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\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 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe File created C:\Windows\rss\csrss.exe a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.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 3092 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 856 schtasks.exe 1836 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,-231 = "Hawaiian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-211 = "Pacific 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\Disallowed\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2772 = "Omsk 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.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,-162 = "Central Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.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,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\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,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\@tzres.dll,-1022 = "Bangladesh 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\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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,-1831 = "Russia TZ 2 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)" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.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\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2491 = "Aus Central W. 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\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA 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\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 480 powershell.exe 480 powershell.exe 4676 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 4676 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 900 powershell.exe 900 powershell.exe 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 4896 powershell.exe 4896 powershell.exe 4692 powershell.exe 4692 powershell.exe 752 powershell.exe 752 powershell.exe 2168 powershell.exe 2168 powershell.exe 2068 powershell.exe 2068 powershell.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 4776 csrss.exe 4776 csrss.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 4776 csrss.exe 4776 csrss.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 480 powershell.exe Token: SeDebugPrivilege 4676 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Token: SeImpersonatePrivilege 4676 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe Token: SeDebugPrivilege 900 powershell.exe Token: SeDebugPrivilege 4896 powershell.exe Token: SeDebugPrivilege 4692 powershell.exe Token: SeDebugPrivilege 752 powershell.exe Token: SeDebugPrivilege 2168 powershell.exe Token: SeDebugPrivilege 2068 powershell.exe Token: SeSystemEnvironmentPrivilege 4776 csrss.exe Token: SeSecurityPrivilege 3092 sc.exe Token: SeSecurityPrivilege 3092 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4676 wrote to memory of 480 4676 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 81 PID 4676 wrote to memory of 480 4676 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 81 PID 4676 wrote to memory of 480 4676 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 81 PID 1624 wrote to memory of 900 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 86 PID 1624 wrote to memory of 900 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 86 PID 1624 wrote to memory of 900 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 86 PID 1624 wrote to memory of 3180 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 107 PID 1624 wrote to memory of 3180 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 107 PID 3180 wrote to memory of 2788 3180 cmd.exe 90 PID 3180 wrote to memory of 2788 3180 cmd.exe 90 PID 1624 wrote to memory of 4896 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 91 PID 1624 wrote to memory of 4896 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 91 PID 1624 wrote to memory of 4896 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 91 PID 1624 wrote to memory of 4692 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 93 PID 1624 wrote to memory of 4692 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 93 PID 1624 wrote to memory of 4692 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 93 PID 1624 wrote to memory of 4776 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 95 PID 1624 wrote to memory of 4776 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 95 PID 1624 wrote to memory of 4776 1624 a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe 95 PID 4776 wrote to memory of 752 4776 csrss.exe 96 PID 4776 wrote to memory of 752 4776 csrss.exe 96 PID 4776 wrote to memory of 752 4776 csrss.exe 96 PID 4776 wrote to memory of 2168 4776 csrss.exe 101 PID 4776 wrote to memory of 2168 4776 csrss.exe 101 PID 4776 wrote to memory of 2168 4776 csrss.exe 101 PID 4776 wrote to memory of 2068 4776 csrss.exe 104 PID 4776 wrote to memory of 2068 4776 csrss.exe 104 PID 4776 wrote to memory of 2068 4776 csrss.exe 104 PID 4776 wrote to memory of 1996 4776 csrss.exe 106 PID 4776 wrote to memory of 1996 4776 csrss.exe 106 PID 3096 wrote to memory of 924 3096 windefender.exe 112 PID 3096 wrote to memory of 924 3096 windefender.exe 112 PID 3096 wrote to memory of 924 3096 windefender.exe 112 PID 924 wrote to memory of 3092 924 cmd.exe 113 PID 924 wrote to memory of 3092 924 cmd.exe 113 PID 924 wrote to memory of 3092 924 cmd.exe 113 -
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\a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe"C:\Users\Admin\AppData\Local\Temp\a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4676 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:480
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C:\Users\Admin\AppData\Local\Temp\a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.exe"C:\Users\Admin\AppData\Local\Temp\a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9.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:1624 -
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:900
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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:3180 -
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:2788
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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:4896
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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:4692
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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:4776 -
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:752
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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:856
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2864
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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:2168
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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:2068
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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:1996 -
C:\Windows\System32\Conhost.exe\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV15⤵PID:3180
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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:1836
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3096 -
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:924 -
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:3092
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3140
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5326550353d5a82e92b1e9184163cdcfb
SHA146b4ee5388f936b2ce87505f2eb95b45c7a8fa0d
SHA256bfb9f856b9aaa32b6fc7737f08b7f29a91f8f7fa6632db12e6e691116c3e4f33
SHA512bff605787d16834484a5b282f84e6794f952d5f30e0331748bf2d4b096d5e7bbd5405266f5d393fe4e097b583828a3471d529ad6258fc698e0a7b61e21625c5f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58ddf4ad4f6409d933544d31adab65811
SHA1676ae3a64fb80060c7fd1b3088c373f30bdf5e76
SHA256fefe3a575d549cc5f034ffa311fc8665af54788bc0a08a8722d7dafa8399b01f
SHA512109e95c308996f67c0542d0ad5f3c1511424773d1b49483d13e2b9dff9740ebaac173cc2a6c472305592da698caf08d959ec4ef77f0f6a4d1761ce1644debaaf
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD598d7b93827862007f639008004e99ec8
SHA109c176e04fb7c26addc3bb719b53066e63b4df1d
SHA2561b4367498663c2949555fef5e10fd9863768e14c0c15f06d001e64d1426e554b
SHA5124773a4b8a833eb0d6398cf659edfa91741e3f42cf53edcc68ade7e4de2348813aa5f006e5a188cd80fe621b3c357dab41970a41b02b369d1a3b4d3c0fb87094e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5eb293cb97e42b61f847bb525f3b25229
SHA1134cb7693bf5e1107950ac5c5ba4d3ff293f74eb
SHA2565427e4913cd5bcab4d7ee7bf585f62ade4ab6fb7f505d32870fc498220e1f6f5
SHA512940ef9dbea2700688ab2aae5aeba8920abcb9de1b7fc7c96ada67258a422e2985a570598209bd424706f3567a3efbbd9f9fb91d57595e06fe95eab58a0f9e718
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD567ca4551fd2e73db0e332e99740618e8
SHA151814f8e039ab84d201590ce3236bb685c51a1dc
SHA256c079f751a809db0046f83a63c4903771dbda605677657f2c169c3ec226c3872b
SHA5126c12d13c2857df3a0e9891ee7b05521fbc4605a456a87b249bf4b055073b4853eb9af518f6df76c53e7bb0794cb1eb73095544e3ac89ec9ab9a839edd741cc23
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Filesize
4.2MB
MD586b3448382833a2718e2563147a1f03d
SHA121e2f23bdd3ab31aa68ffd8bdc8aeb7a282e309e
SHA256a6e1409257b8b7100cd9a98f78140993bf54da6ab2c41bbbcf488554ae02bcc9
SHA512355f5b10a4b6ee73b9559d7545684cd20bc93aba1fc309cc53cd0575f3b3a0459be05a6d1566b210fc4901b854163e46ed8011822dd252f4b4e3655e797283f4
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec