Analysis
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max time kernel
149s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
16-05-2024 09:46
Static task
static1
Behavioral task
behavioral1
Sample
6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe
Resource
win10v2004-20240426-en
General
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Target
6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe
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Size
4.1MB
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MD5
4c58c133e68b68616ce107d2c6aae47e
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SHA1
945d2c7ac7af222137d386b74635c9441a54d303
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SHA256
6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee
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SHA512
15fb6e2d86f181f49b90e293ed89ca225faf63ab1bb322b719b920a1e1df38ccc93f0e5c014be9920c5b0b9df4439df26627a298c1ea3e3288a5587f8eedaa45
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SSDEEP
98304:tH49zrfgobu9aDMWAg4dPDb/NQHvakIF/A8L3rqLZk5t2qZ3qL2LAZ53:kr7OagDbOPW/F2k5tRZaLrN
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/4072-2-0x0000000002E40000-0x000000000372B000-memory.dmp family_glupteba behavioral2/memory/4072-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4072-52-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3552-55-0x0000000002A20000-0x0000000002E1E000-memory.dmp family_glupteba behavioral2/memory/4072-54-0x0000000002E40000-0x000000000372B000-memory.dmp family_glupteba behavioral2/memory/3552-121-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3552-201-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/5040-202-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/5040-215-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/5040-218-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/5040-222-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/5040-226-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/5040-230-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/5040-234-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/5040-238-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/5040-242-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/5040-246-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/5040-250-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/5040-254-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 1432 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 5040 csrss.exe 1748 injector.exe 1492 windefender.exe 4856 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002aa24-206.dat upx behavioral2/memory/1492-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4856-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1492-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4856-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4856-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe Set value (str) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created 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:
6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe -
Drops file in Windows directory 4 IoCs
Processes:
6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe File created C:\Windows\rss\csrss.exe 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.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 3212 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4820 powershell.exe 1684 powershell.exe 5020 powershell.exe 3644 powershell.exe 832 powershell.exe 4700 powershell.exe 3468 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 4068 schtasks.exe 1028 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-441 = "Arabian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-511 = "Central Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.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" 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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,-2431 = "Cuba Daylight 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-622 = "Korea Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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,-2872 = "Magallanes Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-364 = "Middle East Daylight 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,-1972 = "Belarus Standard Time" 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.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\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.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,-2451 = "Saint Pierre Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-532 = "Sri Lanka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.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,-451 = "Caucasus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates 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,-2632 = "Norfolk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exepowershell.exe6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4820 powershell.exe 4820 powershell.exe 4072 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 4072 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 1684 powershell.exe 1684 powershell.exe 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 5020 powershell.exe 5020 powershell.exe 3644 powershell.exe 3644 powershell.exe 832 powershell.exe 832 powershell.exe 4700 powershell.exe 4700 powershell.exe 3468 powershell.exe 3468 powershell.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 5040 csrss.exe 5040 csrss.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 5040 csrss.exe 5040 csrss.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 5040 csrss.exe 5040 csrss.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe 1748 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4820 powershell.exe Token: SeDebugPrivilege 4072 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe Token: SeImpersonatePrivilege 4072 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe Token: SeDebugPrivilege 1684 powershell.exe Token: SeDebugPrivilege 5020 powershell.exe Token: SeDebugPrivilege 3644 powershell.exe Token: SeDebugPrivilege 832 powershell.exe Token: SeDebugPrivilege 4700 powershell.exe Token: SeDebugPrivilege 3468 powershell.exe Token: SeSystemEnvironmentPrivilege 5040 csrss.exe Token: SeSecurityPrivilege 3212 sc.exe Token: SeSecurityPrivilege 3212 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 4072 wrote to memory of 4820 4072 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 79 PID 4072 wrote to memory of 4820 4072 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 79 PID 4072 wrote to memory of 4820 4072 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 79 PID 3552 wrote to memory of 1684 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 84 PID 3552 wrote to memory of 1684 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 84 PID 3552 wrote to memory of 1684 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 84 PID 3552 wrote to memory of 3520 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 86 PID 3552 wrote to memory of 3520 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 86 PID 3520 wrote to memory of 1432 3520 cmd.exe 88 PID 3520 wrote to memory of 1432 3520 cmd.exe 88 PID 3552 wrote to memory of 5020 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 89 PID 3552 wrote to memory of 5020 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 89 PID 3552 wrote to memory of 5020 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 89 PID 3552 wrote to memory of 3644 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 91 PID 3552 wrote to memory of 3644 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 91 PID 3552 wrote to memory of 3644 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 91 PID 3552 wrote to memory of 5040 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 93 PID 3552 wrote to memory of 5040 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 93 PID 3552 wrote to memory of 5040 3552 6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe 93 PID 5040 wrote to memory of 832 5040 csrss.exe 94 PID 5040 wrote to memory of 832 5040 csrss.exe 94 PID 5040 wrote to memory of 832 5040 csrss.exe 94 PID 5040 wrote to memory of 4700 5040 csrss.exe 100 PID 5040 wrote to memory of 4700 5040 csrss.exe 100 PID 5040 wrote to memory of 4700 5040 csrss.exe 100 PID 5040 wrote to memory of 3468 5040 csrss.exe 102 PID 5040 wrote to memory of 3468 5040 csrss.exe 102 PID 5040 wrote to memory of 3468 5040 csrss.exe 102 PID 5040 wrote to memory of 1748 5040 csrss.exe 104 PID 5040 wrote to memory of 1748 5040 csrss.exe 104 PID 1492 wrote to memory of 2192 1492 windefender.exe 110 PID 1492 wrote to memory of 2192 1492 windefender.exe 110 PID 1492 wrote to memory of 2192 1492 windefender.exe 110 PID 2192 wrote to memory of 3212 2192 cmd.exe 111 PID 2192 wrote to memory of 3212 2192 cmd.exe 111 PID 2192 wrote to memory of 3212 2192 cmd.exe 111 -
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\6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe"C:\Users\Admin\AppData\Local\Temp\6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4072 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4820
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C:\Users\Admin\AppData\Local\Temp\6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.exe"C:\Users\Admin\AppData\Local\Temp\6acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee.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:3552 -
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:1684
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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:3520 -
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:1432
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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:5020
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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:3644
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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:5040 -
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:832
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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:4068
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4716
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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:4700
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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:3468
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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:1748
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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:1028
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1492 -
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:2192 -
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:3212
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4856
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
MD5775fb6b531b8433c37e1ff87f4549374
SHA11ebc0b6a0b40fecb90c0e275ad91c76184928b8a
SHA2565eb80a02c9dbae1afa0534be290b485be456f86c1c0a3f76318e48d45d3b3743
SHA51255bbf7ca9a998f87e8db18ec8328d6f4ae153c12c9245458d7e9dda6c1f31b233d10ecad6a5177748fa6b87ad5f2a336714a37339e55e3156bcc3bbcda5ab5ff
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d377884b0dbf89b61087eba2d24c669d
SHA1508c9ae45e69cd8022ff4ce53d99a04bcb3249fa
SHA25669d87ce2cd0c2899cf615d6065ab4d146204398982ccfb13cce0ed476c93c643
SHA512a2db0b57d2bbe4b7357eb22b14e6447c397f5fe224c1f5de956f91d28d7b9c955198c179d7584d4fae84168d21556c555dea873004a8789cbf1933216275c395
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d86d3af1cbffc7844ec801573c27789d
SHA15df6606ce982a0ce2dc9ec0856904aa6110c35de
SHA256113f3c239b2073d2984e23eafdc85ad0cc96b25af3667bcab4714e7afcdc5869
SHA512e3cf451b72bbbad54e56c2f3f8c3db156caa62cc580eca3e5285e2fbabc6a60758534bcc2ea85ca833be5caaabce526242ce461d415afda8aae1d8eabea6ed9e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5465dc1a4ed2ec074105c93ddf97f7534
SHA1b06220f4f45ccd237836686bf7489baab6a5da71
SHA25650e5a7113445b7fb596bdb96f856989221adb6f4180a910fa612fa5cae616e67
SHA51266de731896055d60c36757fffe914d32ece12ef2f88e4b341c99f402eea7f22abb2f9daa1b9c4f69f1ef7976b44ece9c4145c1dbe0dadb58964fc2c09d0a0d7a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cf968596a12d28e3683f0336e85e1d1b
SHA17534b35cb453de3241ef0ca22e4df9f61ba90579
SHA256b9b71164ecbb237fc2be690f77c4d5a5c31a3d5d71d46f4468d02a92c3f10886
SHA512090903308836b14716a8e37c55e6fc21f231478df287aa909473af0dd7ab32a49bf5528ac7645085047c2d130c5cedde3fc3080f580269986c6c4c6bf6a5f978
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Filesize
4.1MB
MD54c58c133e68b68616ce107d2c6aae47e
SHA1945d2c7ac7af222137d386b74635c9441a54d303
SHA2566acc81e88b5a05507a690f3bf7b36b10d6b841b0269e33f66eff4d321a2fb2ee
SHA51215fb6e2d86f181f49b90e293ed89ca225faf63ab1bb322b719b920a1e1df38ccc93f0e5c014be9920c5b0b9df4439df26627a298c1ea3e3288a5587f8eedaa45
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec