Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
17-05-2024 07:06
Static task
static1
Behavioral task
behavioral1
Sample
86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe
Resource
win10v2004-20240426-en
General
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Target
86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe
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Size
4.1MB
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MD5
22f1778a96692782c1d7f7f6f3cffa57
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SHA1
92afc8285831970b0ce8a09a9aee82e8831b3a9f
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SHA256
86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837
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SHA512
f47b1d614a4f2c9d868cefa828095d24e268bc15b395d3bd4346f7ab2260e7fdf3a227a18168cd930bf38eec22e22a32ab4912f9f971c4829557c6eb898ad9ec
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SSDEEP
98304:g0IUXroYDzElV89sdV2qHm3LaKbYXl7F29tEHWEXgelgSAZWSyDiLZ:bIU7SlV8K2X2AhEHFgekcW
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/4528-2-0x0000000004DB0000-0x000000000569B000-memory.dmp family_glupteba behavioral2/memory/4528-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4528-52-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4528-54-0x0000000004DB0000-0x000000000569B000-memory.dmp family_glupteba behavioral2/memory/4528-79-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4840-78-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4840-130-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3436-151-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3436-206-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3436-217-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3436-220-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3436-224-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3436-227-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3436-233-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3436-237-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3436-240-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3436-243-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3436-249-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 4084 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 3436 csrss.exe 4088 injector.exe 908 windefender.exe 3484 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/908-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/908-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3484-221-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3484-228-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\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 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.
Processes:
86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe -
Drops file in Windows directory 4 IoCs
Processes:
86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.execsrss.exedescription ioc process File opened for modification C:\Windows\rss 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe File created C:\Windows\rss\csrss.exe 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.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 3328 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 1664 powershell.exe 4948 powershell.exe 4824 powershell.exe 2500 powershell.exe 4700 powershell.exe 4644 powershell.exe 3452 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 3908 schtasks.exe 1512 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exewindefender.exe86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process 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,-731 = "Fiji Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2751 = "Tomsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\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\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates 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,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2632 = "Norfolk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2772 = "Omsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-682 = "E. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-334 = "Jordan Daylight Time" windefender.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,-1862 = "Russia TZ 6 Standard 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" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.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,-214 = "Pacific Daylight Time (Mexico)" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.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,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-572 = "China Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.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\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exepowershell.exe86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4644 powershell.exe 4644 powershell.exe 4528 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe 4528 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe 3452 powershell.exe 3452 powershell.exe 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe 1664 powershell.exe 1664 powershell.exe 4948 powershell.exe 4948 powershell.exe 4824 powershell.exe 4824 powershell.exe 2500 powershell.exe 2500 powershell.exe 4700 powershell.exe 4700 powershell.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 3436 csrss.exe 3436 csrss.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 3436 csrss.exe 3436 csrss.exe 4088 injector.exe 4088 injector.exe 3436 csrss.exe 3436 csrss.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe 4088 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 4644 powershell.exe Token: SeDebugPrivilege 4528 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Token: SeImpersonatePrivilege 4528 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe Token: SeDebugPrivilege 3452 powershell.exe Token: SeDebugPrivilege 1664 powershell.exe Token: SeDebugPrivilege 4948 powershell.exe Token: SeDebugPrivilege 4824 powershell.exe Token: SeDebugPrivilege 2500 powershell.exe Token: SeDebugPrivilege 4700 powershell.exe Token: SeSystemEnvironmentPrivilege 3436 csrss.exe Token: SeSecurityPrivilege 3328 sc.exe Token: SeSecurityPrivilege 3328 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4528 wrote to memory of 4644 4528 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe powershell.exe PID 4528 wrote to memory of 4644 4528 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe powershell.exe PID 4528 wrote to memory of 4644 4528 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe powershell.exe PID 4840 wrote to memory of 3452 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe powershell.exe PID 4840 wrote to memory of 3452 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe powershell.exe PID 4840 wrote to memory of 3452 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe powershell.exe PID 4840 wrote to memory of 1392 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe cmd.exe PID 4840 wrote to memory of 1392 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe cmd.exe PID 1392 wrote to memory of 4084 1392 cmd.exe netsh.exe PID 1392 wrote to memory of 4084 1392 cmd.exe netsh.exe PID 4840 wrote to memory of 1664 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe powershell.exe PID 4840 wrote to memory of 1664 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe powershell.exe PID 4840 wrote to memory of 1664 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe powershell.exe PID 4840 wrote to memory of 4948 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe powershell.exe PID 4840 wrote to memory of 4948 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe powershell.exe PID 4840 wrote to memory of 4948 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe powershell.exe PID 4840 wrote to memory of 3436 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe csrss.exe PID 4840 wrote to memory of 3436 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe csrss.exe PID 4840 wrote to memory of 3436 4840 86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe csrss.exe PID 3436 wrote to memory of 4824 3436 csrss.exe powershell.exe PID 3436 wrote to memory of 4824 3436 csrss.exe powershell.exe PID 3436 wrote to memory of 4824 3436 csrss.exe powershell.exe PID 3436 wrote to memory of 2500 3436 csrss.exe powershell.exe PID 3436 wrote to memory of 2500 3436 csrss.exe powershell.exe PID 3436 wrote to memory of 2500 3436 csrss.exe powershell.exe PID 3436 wrote to memory of 4700 3436 csrss.exe powershell.exe PID 3436 wrote to memory of 4700 3436 csrss.exe powershell.exe PID 3436 wrote to memory of 4700 3436 csrss.exe powershell.exe PID 3436 wrote to memory of 4088 3436 csrss.exe injector.exe PID 3436 wrote to memory of 4088 3436 csrss.exe injector.exe PID 908 wrote to memory of 1524 908 windefender.exe cmd.exe PID 908 wrote to memory of 1524 908 windefender.exe cmd.exe PID 908 wrote to memory of 1524 908 windefender.exe cmd.exe PID 1524 wrote to memory of 3328 1524 cmd.exe sc.exe PID 1524 wrote to memory of 3328 1524 cmd.exe sc.exe PID 1524 wrote to memory of 3328 1524 cmd.exe sc.exe -
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\86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe"C:\Users\Admin\AppData\Local\Temp\86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4528 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4644 -
C:\Users\Admin\AppData\Local\Temp\86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.exe"C:\Users\Admin\AppData\Local\Temp\86b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837.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:4840 -
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:3452 -
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:1392 -
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:4084 -
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:1664 -
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 -
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:3436 -
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:4824 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3908 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3528
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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:2500 -
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:4700 -
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:4088 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:1512 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:908 -
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:1524 -
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:3328
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3484
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
MD5a4dbe5a73081f7ce2d4653fd729ecf02
SHA137dd9c4a9d8a944fe04a4ed16a3d2894ea26267b
SHA2560ff11b91b0b8fb92304aa7e35310fa5d73e190b9626bb636d38e5d5e17a521ea
SHA512cfc1b27976fc5b2021feb6d342cc613f472a86d21d059eef6d5c03ef3d3b2730a784b9fccf79f632b9473c3fb4059aff81f85b031a34375cd2450c94043f7fa0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD577116fac5806bc631ad0d03e7bb5cee5
SHA1080284c8a9a5dcc31199fa4c109e6c2bfedf39a6
SHA256f3f561af73921a5c67c8d7934ae92c9c16b271312589d598cfd4c015cb2c313d
SHA5127e078cd4f670e5bc33868a9dac13324c86a4597250567367c08c7fa78f06470a2453ccbb0fd47ee71c8e9d6d9a613299ef8eeb291ac3fe619eebc496fdb987b1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD577bfb1fbb6c5a13828026051a99e1312
SHA11f11774b670f1dcae49f48c125e872c4cd1d7bcd
SHA256bb2e6d9744fe908b1cdd29572863db1d5f0157f9e228bc96717116f0f5afa2aa
SHA5129b36f07cdcefda43f1b08faa4c9fb0e7b23df36ae9b54bf7eabd8c5abdc0c46c013273e721a14c262cfea233ff74e2e5e1c5013c7473312a11ca99790e14ea85
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d7eaf48ffee65c2409017c3c45ec37d2
SHA19c47345c2751829da77426171fac347013d90796
SHA256e5738f9d9e02cd8461e87d1c460d9cfe1b158bb7aeb4f8a321f91963ea655049
SHA512f2ee1c6f88190590eaa7b6aaa8c83113aa511b25f9b36340643490ff19d2be4e3dad1ff57c8e9f344437228b8dfc67db7f3f742d54fa36cf3bd693e1a5bdcfcd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD530804f271067715b17c70e7f2f48adc5
SHA18e21224d7860d2110d73a68fa6bd4306d591234e
SHA256579f4683de734cb17baf68ade479f84a6a95e65d7e0966fab45425db289ad8c7
SHA51225e7ee50c21158333d7c2a2dc72b71dffa4233ba5aa4e0ac3ca9f035636a06e29bb8a69520ae233c42d3c2df9000b17b1d6a8356c4f5fd6f8e57dcd08559e106
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Filesize
4.1MB
MD522f1778a96692782c1d7f7f6f3cffa57
SHA192afc8285831970b0ce8a09a9aee82e8831b3a9f
SHA25686b718dc035f6a1e4f6d93a94ecc09e5249fcb758f1142b625efa19c81823837
SHA512f47b1d614a4f2c9d868cefa828095d24e268bc15b395d3bd4346f7ab2260e7fdf3a227a18168cd930bf38eec22e22a32ab4912f9f971c4829557c6eb898ad9ec
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec