Analysis
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max time kernel
150s -
max time network
124s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 14:14
Static task
static1
Behavioral task
behavioral1
Sample
fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe
Resource
win10v2004-20240508-en
General
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Target
fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe
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Size
4.1MB
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MD5
0381ec443839760ba8c41ce4633a1179
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SHA1
9dc2f870549a32f656ed76e3b7e337c565a6f1d8
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SHA256
fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996
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SHA512
45f5c6249adefebd9be488fcbe4555b8541f4acae0a50c5004432be2b91eeba2546cee4412142fa60e2f67ffb85f64a0ae70c4b8398455ccfb4ed087c69930dc
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SSDEEP
98304:IuOdAWE/bfbxbxBimum48oJjLrUZhWcgWy75MTps2CObMUZCzBSD:IuOpIddBi3V8Ojm7gWylM939Cm
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/2616-2-0x0000000004950000-0x000000000523B000-memory.dmp family_glupteba behavioral2/memory/2616-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2616-88-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/2616-119-0x0000000004950000-0x000000000523B000-memory.dmp family_glupteba behavioral2/memory/2616-146-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2496-145-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3864-200-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3864-211-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3864-216-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3864-220-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3864-224-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3864-227-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3864-232-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3864-236-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3864-240-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3864-243-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3864-248-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3864-252-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3864-256-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2428 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 3864 csrss.exe 1360 injector.exe 4048 windefender.exe 4608 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002a9d5-204.dat upx behavioral2/memory/4048-205-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4608-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4048-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4608-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4608-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4608-234-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.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\"" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.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:
fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe -
Drops file in Windows directory 4 IoCs
Processes:
csrss.exefdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exedescription ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe File created C:\Windows\rss\csrss.exe fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe File created 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 460 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 2752 powershell.exe 1256 powershell.exe 4868 powershell.exe 4924 powershell.exe 1976 powershell.exe 2680 powershell.exe 5080 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 3516 schtasks.exe 4736 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.exepowershell.exepowershell.exepowershell.exepowershell.exefdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-191 = "Mountain Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.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,-1471 = "Magadan Daylight 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,-1862 = "Russia TZ 6 Standard Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.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\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.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,-632 = "Tokyo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.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" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.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,-651 = "AUS Central Daylight Time" windefender.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\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs 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,-122 = "SA Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-241 = "Samoa Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs 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,-82 = "Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-571 = "China Daylight 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\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1802 = "Line Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-161 = "Central Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exefdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exepowershell.exefdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4868 powershell.exe 4868 powershell.exe 2616 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 2616 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 4924 powershell.exe 4924 powershell.exe 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 1976 powershell.exe 1976 powershell.exe 2680 powershell.exe 2680 powershell.exe 5080 powershell.exe 5080 powershell.exe 2752 powershell.exe 2752 powershell.exe 1256 powershell.exe 1256 powershell.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 3864 csrss.exe 3864 csrss.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 3864 csrss.exe 3864 csrss.exe 1360 injector.exe 1360 injector.exe 3864 csrss.exe 3864 csrss.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe 1360 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exefdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4868 powershell.exe Token: SeDebugPrivilege 2616 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Token: SeImpersonatePrivilege 2616 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe Token: SeDebugPrivilege 4924 powershell.exe Token: SeDebugPrivilege 1976 powershell.exe Token: SeDebugPrivilege 2680 powershell.exe Token: SeDebugPrivilege 5080 powershell.exe Token: SeDebugPrivilege 2752 powershell.exe Token: SeDebugPrivilege 1256 powershell.exe Token: SeSystemEnvironmentPrivilege 3864 csrss.exe Token: SeSecurityPrivilege 460 sc.exe Token: SeSecurityPrivilege 460 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exefdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 2616 wrote to memory of 4868 2616 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 78 PID 2616 wrote to memory of 4868 2616 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 78 PID 2616 wrote to memory of 4868 2616 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 78 PID 2496 wrote to memory of 4924 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 83 PID 2496 wrote to memory of 4924 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 83 PID 2496 wrote to memory of 4924 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 83 PID 2496 wrote to memory of 4280 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 85 PID 2496 wrote to memory of 4280 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 85 PID 4280 wrote to memory of 2428 4280 cmd.exe 87 PID 4280 wrote to memory of 2428 4280 cmd.exe 87 PID 2496 wrote to memory of 1976 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 88 PID 2496 wrote to memory of 1976 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 88 PID 2496 wrote to memory of 1976 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 88 PID 2496 wrote to memory of 2680 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 90 PID 2496 wrote to memory of 2680 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 90 PID 2496 wrote to memory of 2680 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 90 PID 2496 wrote to memory of 3864 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 92 PID 2496 wrote to memory of 3864 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 92 PID 2496 wrote to memory of 3864 2496 fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe 92 PID 3864 wrote to memory of 5080 3864 csrss.exe 93 PID 3864 wrote to memory of 5080 3864 csrss.exe 93 PID 3864 wrote to memory of 5080 3864 csrss.exe 93 PID 3864 wrote to memory of 2752 3864 csrss.exe 99 PID 3864 wrote to memory of 2752 3864 csrss.exe 99 PID 3864 wrote to memory of 2752 3864 csrss.exe 99 PID 3864 wrote to memory of 1256 3864 csrss.exe 101 PID 3864 wrote to memory of 1256 3864 csrss.exe 101 PID 3864 wrote to memory of 1256 3864 csrss.exe 101 PID 3864 wrote to memory of 1360 3864 csrss.exe 103 PID 3864 wrote to memory of 1360 3864 csrss.exe 103 PID 4048 wrote to memory of 4276 4048 windefender.exe 109 PID 4048 wrote to memory of 4276 4048 windefender.exe 109 PID 4048 wrote to memory of 4276 4048 windefender.exe 109 PID 4276 wrote to memory of 460 4276 cmd.exe 110 PID 4276 wrote to memory of 460 4276 cmd.exe 110 PID 4276 wrote to memory of 460 4276 cmd.exe 110 -
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\fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe"C:\Users\Admin\AppData\Local\Temp\fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2616 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4868
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C:\Users\Admin\AppData\Local\Temp\fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.exe"C:\Users\Admin\AppData\Local\Temp\fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996.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:2496 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4924
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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:4280 -
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:2428
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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:1976
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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:2680
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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:3864 -
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:5080
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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:3516
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3104
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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:2752
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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:1256
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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:1360
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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:4736
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4048 -
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:4276 -
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:460
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4608
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
MD5b36bb781b0e1d39371173117189dc649
SHA1fac0fbbcf6e9cd43b102b2ee550b0e59307f7955
SHA2564a1c402f161407bad89e2c0c1d79f8d5ef49620e8264d8835d328a047a62be90
SHA51266dd55f1d728ca8bf8cb7ceb697e9b414f0760b997275c0d9796f155203c27dbd8b6c05a10d0830d81ddb882e6931a56b85e7ae236d592c6a5083d93b0f94118
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD543e4e4451c1f5868a5a588c1fe68653b
SHA1d897197544d00341a87aa96966ec8425507f551e
SHA256a8092882cf0a769a03fdfcad45e53cdfd5dd2fb58fc24f439a01ca844490ac2a
SHA5123b524e85895c16f7ea7af55656b84790ccc9a3ea36ac1b671206d1f8267fda1558171e8fb47bb7ca18017ab3b966816acce25a9e41ab516af85203fabb0a4c11
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD550b51f512af953397e72b08742a1e5d9
SHA11877a95c7cc565b61dfe955add85df9dcb56cf44
SHA2564d0c56081373cd84869e9f36d1578389566a209897a33e75f86314802bba13b0
SHA512b2c9b986499e074c60747abc5d63b1943ff08bd856fd0f13297e4bdc48b41bdfa590b579f6146d9e92300a0295972b15d351dfb8f5ee3d673ed1a94dcdd0b387
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b63cf5f4fe3fe6d3d7e34952162a2cc1
SHA17034f80e8919a0d68135e29c6ce0368ad8aaf8a4
SHA256e6f31306407d9e83f8000d91d48d2c1f3745f9bbaaeaf8a28869b930275babe0
SHA51296577e8f9e6d56658e20da21ac23e9227e7a9de845be924ccf33524367337c3a260a5331d6ac0191a5e135e7214af496e4a57f364a9f4c2f9b7d164d369fb993
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD515daa95851b4fc7b6a04832aa2b46be5
SHA1f42574565c3ffec80f81191f0cf57282a7dacbf7
SHA256f80866a43737cd125fd6d65480dc76a0b0ef2157c46a2e9242b36bd79102d4bf
SHA51267e4652caee87dee202685f986722fea8a29c41ce49c15f262528af5e683198441c50df33a4818ce55c1b800ab6f1bc8c1e7d5fd6472205ba5277a5d3ba98185
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Filesize
4.1MB
MD50381ec443839760ba8c41ce4633a1179
SHA19dc2f870549a32f656ed76e3b7e337c565a6f1d8
SHA256fdb99d25d929c6734692397e0cf917cf9b94e7966b7812582e897078ad3ac996
SHA51245f5c6249adefebd9be488fcbe4555b8541f4acae0a50c5004432be2b91eeba2546cee4412142fa60e2f67ffb85f64a0ae70c4b8398455ccfb4ed087c69930dc
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec