Analysis
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max time kernel
150s -
max time network
136s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
16-05-2024 10:30
Static task
static1
Behavioral task
behavioral1
Sample
ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe
Resource
win10v2004-20240508-en
General
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Target
ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe
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Size
4.1MB
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MD5
dbd4a7dbe5f34fcea61e1aed4638f08b
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SHA1
aa460466c0d808adfdef5c3f480e9119826ba20d
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SHA256
ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb
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SHA512
15edb1cb7b8ae49e4cf6044b22b6fc6dbc76bf0ef1cac13754d4f3e6de20b9892eadfb48a688d2fc2e927fe947871cacf8c481c5dea02148667f68118737217d
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SSDEEP
98304:dBH5QtHgtXZGwxAeX68LG3wNCsYjHyiS0gsLIyJOWEFSdaDQG3a9nt3:dBZQtHgtXlxHq4G3ixkyiJTOnSQDy9nB
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/3540-2-0x0000000002E20000-0x000000000370B000-memory.dmp family_glupteba behavioral2/memory/3540-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3540-74-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3540-76-0x0000000002E20000-0x000000000370B000-memory.dmp family_glupteba behavioral2/memory/2136-121-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2136-125-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1052-201-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1052-211-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1052-213-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1052-216-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1052-219-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1052-222-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1052-226-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1052-228-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1052-231-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1052-234-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1052-238-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1052-240-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 4164 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 1052 csrss.exe 2552 injector.exe 5060 windefender.exe 2396 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x001a00000002ab47-204.dat upx behavioral2/memory/5060-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5060-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2396-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2396-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\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.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription 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 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 -
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.
Processes:
ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe -
Drops file in Windows directory 4 IoCs
Processes:
ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe File created C:\Windows\rss\csrss.exe ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.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.
Processes:
sc.exepid Process 4984 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4640 powershell.exe 1012 powershell.exe 3828 powershell.exe 2428 powershell.exe 440 powershell.exe 468 powershell.exe 4736 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid Process 2492 schtasks.exe 2076 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exepowershell.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2591 = "Tocantins Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.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\2a\52C64B7E\@tzres.dll,-631 = "Tokyo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-911 = "Mauritius Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust 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\2a\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs 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\2a\52C64B7E\@tzres.dll,-261 = "GMT Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-162 = "Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\2a\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-722 = "Central Pacific Standard Time" windefender.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\2a\52C64B7E\@tzres.dll,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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\2a\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1022 = "Bangladesh Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exepowershell.exeba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 3828 powershell.exe 3828 powershell.exe 3540 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 3540 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 2428 powershell.exe 2428 powershell.exe 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 440 powershell.exe 440 powershell.exe 468 powershell.exe 468 powershell.exe 4736 powershell.exe 4736 powershell.exe 4640 powershell.exe 4640 powershell.exe 1012 powershell.exe 1012 powershell.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 1052 csrss.exe 1052 csrss.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 1052 csrss.exe 1052 csrss.exe 2552 injector.exe 2552 injector.exe 1052 csrss.exe 1052 csrss.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exeba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 3828 powershell.exe Token: SeDebugPrivilege 3540 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Token: SeImpersonatePrivilege 3540 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe Token: SeDebugPrivilege 2428 powershell.exe Token: SeDebugPrivilege 440 powershell.exe Token: SeDebugPrivilege 468 powershell.exe Token: SeDebugPrivilege 4736 powershell.exe Token: SeDebugPrivilege 4640 powershell.exe Token: SeDebugPrivilege 1012 powershell.exe Token: SeSystemEnvironmentPrivilege 1052 csrss.exe Token: SeSecurityPrivilege 4984 sc.exe Token: SeSecurityPrivilege 4984 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exeba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 3540 wrote to memory of 3828 3540 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 81 PID 3540 wrote to memory of 3828 3540 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 81 PID 3540 wrote to memory of 3828 3540 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 81 PID 2136 wrote to memory of 2428 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 86 PID 2136 wrote to memory of 2428 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 86 PID 2136 wrote to memory of 2428 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 86 PID 2136 wrote to memory of 788 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 88 PID 2136 wrote to memory of 788 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 88 PID 788 wrote to memory of 4164 788 cmd.exe 90 PID 788 wrote to memory of 4164 788 cmd.exe 90 PID 2136 wrote to memory of 440 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 91 PID 2136 wrote to memory of 440 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 91 PID 2136 wrote to memory of 440 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 91 PID 2136 wrote to memory of 468 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 93 PID 2136 wrote to memory of 468 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 93 PID 2136 wrote to memory of 468 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 93 PID 2136 wrote to memory of 1052 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 95 PID 2136 wrote to memory of 1052 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 95 PID 2136 wrote to memory of 1052 2136 ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe 95 PID 1052 wrote to memory of 4736 1052 csrss.exe 96 PID 1052 wrote to memory of 4736 1052 csrss.exe 96 PID 1052 wrote to memory of 4736 1052 csrss.exe 96 PID 1052 wrote to memory of 4640 1052 csrss.exe 101 PID 1052 wrote to memory of 4640 1052 csrss.exe 101 PID 1052 wrote to memory of 4640 1052 csrss.exe 101 PID 1052 wrote to memory of 1012 1052 csrss.exe 104 PID 1052 wrote to memory of 1012 1052 csrss.exe 104 PID 1052 wrote to memory of 1012 1052 csrss.exe 104 PID 1052 wrote to memory of 2552 1052 csrss.exe 106 PID 1052 wrote to memory of 2552 1052 csrss.exe 106 PID 5060 wrote to memory of 4644 5060 windefender.exe 112 PID 5060 wrote to memory of 4644 5060 windefender.exe 112 PID 5060 wrote to memory of 4644 5060 windefender.exe 112 PID 4644 wrote to memory of 4984 4644 cmd.exe 113 PID 4644 wrote to memory of 4984 4644 cmd.exe 113 PID 4644 wrote to memory of 4984 4644 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\ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe"C:\Users\Admin\AppData\Local\Temp\ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3540 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3828
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C:\Users\Admin\AppData\Local\Temp\ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.exe"C:\Users\Admin\AppData\Local\Temp\ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb.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:2136 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2428
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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:788 -
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:4164
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:440
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:468
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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:1052 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4736
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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:2492
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1552
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4640
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1012
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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:2552
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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:2076
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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:4644 -
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:4984
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2396
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
MD5f3b8e763cbd0c178fbacac4c551d0bcb
SHA1b4136ed29fe6a7c6b2d322e44b89d879ab3ec090
SHA25622942996977072f7e7915736cc980f28e8ae49dfa2bfd41f4162b2f3a35ddb47
SHA51277bd7c2a48bb7cbbf7350f5831ba37ffe65fc3e7267570edc278fe2c1ee8dc04ae24d00e0eb6dac4de8ecc58abbf149201ec327030721c3943f9df19aa4f7c80
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52fd4a401498ed12acdd87b8988f7d08f
SHA115163d6437cb423d1b0bea7f0385e38bc232aa91
SHA2569a14af5bc45b4d60704e1d3b0af3acbf0796e562b982a658caebd6c18ce29498
SHA5122c51b314eed38d706678716a40fe1d5e9b4c1d32d89646f629aefa558ba1de8360ced0f24f72dacdb2236b3f48d38e2582ffeac1af4802a2d32195af30a9fd03
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD577a6c236be270ae2b8d62197fbd316a0
SHA1130945b90afe0dad543eeeaff61a01d4aacd0bbd
SHA256796cf64614b04dbb01ad9e837c99712ac2b87eaf4afc25262c07c60c2c880450
SHA512062c40e45260236047dfbab687122df3bcbc8aca94b1eaad56d4ad4b5acaf2798bfe617de1893349961bba9c23b7e1e9950d66909318b4c22d6e76ac0d48f02e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c42c8f949c024fc5d8fa58e00a032acb
SHA1203be0ddf262e20811a1f0c6a668740ab25d1c94
SHA25605f1af6e48c0bffb53a1e0b9b2641a88cfb3c6a3fcdc444f07e2a173bac5c2bc
SHA512bd17d178ffd725a044b7edbfb81255ea639ad154a4ad62f5f6651ff36d912be137f79529e1a00f2e59467be81dfd6adba93e7d6235b1b8d97cf12b8ebf9c924d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD576a81c002549c486d12977e35ef5cdd6
SHA129a4a5b63720538daa5cb33c42f15480f8d79c39
SHA256903b0ff20d2b393a47ae08a9973c62653cb5220171e42bce0a59dcfdeed9701e
SHA512505a8abe558c35a1dd85bfc2c16359620b9389c14ba72fb0c87f2b08ecf9e615b83b1116be5ba9b6bc573a5565042044537dd8a29eebdb2e9030c851b073073d
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Filesize
4.1MB
MD5dbd4a7dbe5f34fcea61e1aed4638f08b
SHA1aa460466c0d808adfdef5c3f480e9119826ba20d
SHA256ba36ef7857645bcc4cc82f52008be90d46d48a2c7dd47b6dd24eb8c1226694cb
SHA51215edb1cb7b8ae49e4cf6044b22b6fc6dbc76bf0ef1cac13754d4f3e6de20b9892eadfb48a688d2fc2e927fe947871cacf8c481c5dea02148667f68118737217d
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec