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Analysis
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max time kernel
149s -
max time network
146s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
18/05/2024, 15:18
Static task
static1
Behavioral task
behavioral1
Sample
8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe
Resource
win10v2004-20240426-en
General
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Target
8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe
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Size
4.1MB
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MD5
183d9ce495adcbf580a15dc8f2ca5678
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SHA1
1d5b65469b7e1ab5a9d9919a048b90ec1391791b
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SHA256
8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2
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SHA512
3c2eb39e131775cdc154f3f11699d8aea92b62a194debc55d52cc5b8b9c62083c3701e290b2890dd704ea62721524f2a41361f4b7aadae0fc6bd65aee93ba436
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SSDEEP
98304:73/aXnuKq8lIi6YuYM5DOP1Yy/qFVYXqnggvBm2Aw6XSjras4uEiZDLpDRiiTf:73/aer8lIiPc9ySnggpxAJiIuBVpFiib
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/3496-2-0x00000000049C0000-0x00000000052AB000-memory.dmp family_glupteba behavioral2/memory/3496-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3496-144-0x00000000049C0000-0x00000000052AB000-memory.dmp family_glupteba behavioral2/memory/3496-142-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/3496-198-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2288-197-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2912-200-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2912-212-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2912-216-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2912-219-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2912-224-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2912-228-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2912-232-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2912-235-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2912-239-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2912-244-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2912-248-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2912-252-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2912-255-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4888 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2912 csrss.exe 1896 injector.exe 4896 windefender.exe 4860 windefender.exe -
resource yara_rule behavioral2/memory/4896-205-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/files/0x000200000002a9dd-206.dat upx behavioral2/memory/4896-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4860-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4860-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4860-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3062789476-783164490-2318012559-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Set value (str) \REGISTRY\USER\S-1-5-21-3062789476-783164490-2318012559-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File 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 -
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 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3156 sc.exe -
pid Process 4948 powershell.exe 3220 powershell.exe 5032 powershell.exe 5052 powershell.exe 1660 powershell.exe 1936 powershell.exe 2440 powershell.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 3972 schtasks.exe 2116 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs 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\2a\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs 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,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.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,-462 = "Afghanistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-562 = "SE Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1411 = "Syria Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\@tzres.dll,-501 = "Nepal Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1660 powershell.exe 1660 powershell.exe 3496 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 3496 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 1936 powershell.exe 1936 powershell.exe 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 2440 powershell.exe 2440 powershell.exe 4948 powershell.exe 4948 powershell.exe 3220 powershell.exe 3220 powershell.exe 5032 powershell.exe 5032 powershell.exe 5052 powershell.exe 5052 powershell.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 2912 csrss.exe 2912 csrss.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 2912 csrss.exe 2912 csrss.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 2912 csrss.exe 2912 csrss.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe 1896 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1660 powershell.exe Token: SeDebugPrivilege 3496 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Token: SeImpersonatePrivilege 3496 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe Token: SeDebugPrivilege 1936 powershell.exe Token: SeDebugPrivilege 2440 powershell.exe Token: SeDebugPrivilege 4948 powershell.exe Token: SeDebugPrivilege 3220 powershell.exe Token: SeDebugPrivilege 5032 powershell.exe Token: SeDebugPrivilege 5052 powershell.exe Token: SeSystemEnvironmentPrivilege 2912 csrss.exe Token: SeSecurityPrivilege 3156 sc.exe Token: SeSecurityPrivilege 3156 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3496 wrote to memory of 1660 3496 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 82 PID 3496 wrote to memory of 1660 3496 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 82 PID 3496 wrote to memory of 1660 3496 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 82 PID 2288 wrote to memory of 1936 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 87 PID 2288 wrote to memory of 1936 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 87 PID 2288 wrote to memory of 1936 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 87 PID 2288 wrote to memory of 1192 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 89 PID 2288 wrote to memory of 1192 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 89 PID 1192 wrote to memory of 4888 1192 cmd.exe 91 PID 1192 wrote to memory of 4888 1192 cmd.exe 91 PID 2288 wrote to memory of 2440 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 92 PID 2288 wrote to memory of 2440 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 92 PID 2288 wrote to memory of 2440 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 92 PID 2288 wrote to memory of 4948 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 94 PID 2288 wrote to memory of 4948 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 94 PID 2288 wrote to memory of 4948 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 94 PID 2288 wrote to memory of 2912 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 96 PID 2288 wrote to memory of 2912 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 96 PID 2288 wrote to memory of 2912 2288 8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe 96 PID 2912 wrote to memory of 3220 2912 csrss.exe 97 PID 2912 wrote to memory of 3220 2912 csrss.exe 97 PID 2912 wrote to memory of 3220 2912 csrss.exe 97 PID 2912 wrote to memory of 5032 2912 csrss.exe 103 PID 2912 wrote to memory of 5032 2912 csrss.exe 103 PID 2912 wrote to memory of 5032 2912 csrss.exe 103 PID 2912 wrote to memory of 5052 2912 csrss.exe 105 PID 2912 wrote to memory of 5052 2912 csrss.exe 105 PID 2912 wrote to memory of 5052 2912 csrss.exe 105 PID 2912 wrote to memory of 1896 2912 csrss.exe 107 PID 2912 wrote to memory of 1896 2912 csrss.exe 107 PID 4896 wrote to memory of 4552 4896 windefender.exe 113 PID 4896 wrote to memory of 4552 4896 windefender.exe 113 PID 4896 wrote to memory of 4552 4896 windefender.exe 113 PID 4552 wrote to memory of 3156 4552 cmd.exe 114 PID 4552 wrote to memory of 3156 4552 cmd.exe 114 PID 4552 wrote to memory of 3156 4552 cmd.exe 114 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe"C:\Users\Admin\AppData\Local\Temp\8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3496 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1660
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C:\Users\Admin\AppData\Local\Temp\8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.exe"C:\Users\Admin\AppData\Local\Temp\8b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2.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:2288 -
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:1936
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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:1192 -
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:4888
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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:2440
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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:4948
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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:2912 -
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:3220
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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:3972
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1924
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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:5032
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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:5052
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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:1896
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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:2116
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4896 -
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:4552 -
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:3156
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4860
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
MD584a14c0efc5c5dd08c8513766f2524a9
SHA1268757651d8b47bc5e585144e670d1ed5bc38b9a
SHA256afc598062ed1bd6455c847d29a5b5e05042dfa9215f07b70c7a7d962b074f589
SHA5125e8f60d92dfdba2b166862a936cec80832c402952e77d78edaa419d61b8033a654307859238cc2f135770db39000ff808d17af14316873f225e483962cbd69fe
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD540a921f323d5b334eabf6fad8d718e85
SHA1b75a3e3cf51e04abf402cc2bf34859ac13ed9b52
SHA256d7aca98dd3399b827aca9bb1b7d00e2aa7e038c5e42d744f1bf21e43e6f484fe
SHA5128dc1d403272f3eada8ee9528218bd514d53942d0c66e9853807f1d18e6ebb2e701b8e20fd45102578f4c55498bd0c1cf7c26fc0512a19e841e975967eddfab2b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55c2fb9d1f2d053615fe746f8784d4085
SHA1099864a1fca80464536f44c9066c97e3f306f0df
SHA2565d05013e9039bf3254ce90671b3d8fdf164e26889402e5191c9644298a72cd3d
SHA5121b7dcc895040310f5fcbce6f660d7804578a3d59cc60bf599280684b52186531865666731601e0f95b47ec5cc8b00b5b644a04ac2be4d968d543cbe6f008bd63
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b3136fa6d02997484202878619e183c4
SHA159431a3d91a1c2136e3e4df9368db3b1e93eb928
SHA256c1a2bdca1f2cdadd79d6d0243bea36071dbaa59bf548d3b88ab036bc51809c7a
SHA512cf93874f2de825835a5805505ee87970228b293d0fe993969f517a75303fdf5778487b6689dcb7bedc07fb2fd9c5cf1ddd171a0dd907d295f541707d17004c5d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD528e471f89da0976b7e09b51dc16836bd
SHA15adbfe8202f3ab3cf8c39f2a4a2382d818a912f8
SHA256191fbf02e0ac5bc79189f2c8b44b8ac7376c73fe2f3fc0ec55569a92471f07d0
SHA512d952767bcecc6716e2393c565c225da6518b3e2eaf110803cff88ab111ca2066fd278579367f529e4abcc8fc3798e25f3eda5293ca002432d904e86560d65b94
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Filesize
4.1MB
MD5183d9ce495adcbf580a15dc8f2ca5678
SHA11d5b65469b7e1ab5a9d9919a048b90ec1391791b
SHA2568b0883db391fa4624dcd7166590a206a5d90f16a12745b7a32d9bd73e8ae7fa2
SHA5123c2eb39e131775cdc154f3f11699d8aea92b62a194debc55d52cc5b8b9c62083c3701e290b2890dd704ea62721524f2a41361f4b7aadae0fc6bd65aee93ba436
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec