Analysis
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max time kernel
149s -
max time network
144s -
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 04:53
Static task
static1
Behavioral task
behavioral1
Sample
dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe
Resource
win10v2004-20240426-en
General
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Target
dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe
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Size
4.1MB
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MD5
a9037c859a7a0837f9ee5fd164d27c68
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SHA1
eb9342af53d004ee68aa719dc131a2858aec0973
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SHA256
dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b
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SHA512
b612c4d751e1a6bb2d6972af5e3ae345d6c1a47d596e3da4c2df95fa76e0ec25e675b242f4a2c50644d3c49b02e3fdc4ac450df65e50b707da7581759a200b24
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SSDEEP
98304:uNO3yy04ogde7ep0A2AdPyQGNgd0+V4CCH3iZ/qkVniougG1Q:4OA8mA0A2AFyQ3d0+aD4qkVni5Q
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/1836-2-0x0000000004CB0000-0x000000000559B000-memory.dmp family_glupteba behavioral2/memory/1836-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1836-25-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/1836-50-0x0000000004CB0000-0x000000000559B000-memory.dmp family_glupteba behavioral2/memory/1836-51-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/1836-76-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4508-99-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4508-127-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4468-197-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4468-205-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4468-216-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4468-221-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4468-225-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4468-229-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4468-232-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4468-237-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4468-241-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4468-245-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3436 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 4468 csrss.exe 4308 injector.exe 4696 windefender.exe 3792 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/4696-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3792-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4696-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3792-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3792-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3792-239-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.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\"" dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe -
Drops file in Windows directory 4 IoCs
Processes:
csrss.exedfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exedescription ioc process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe File created C:\Windows\rss\csrss.exe dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.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 1816 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 1492 powershell.exe 4736 powershell.exe 1448 powershell.exe 1348 powershell.exe 1308 powershell.exe 3508 powershell.exe 3780 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 1616 schtasks.exe 4320 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exepowershell.exewindefender.exepowershell.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,-621 = "Korea Daylight Time" dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-562 = "SE Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\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,-2532 = "Chatham Islands Standard 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,-2001 = "Cabo Verde Daylight Time" dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-241 = "Samoa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1411 = "Syria Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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 Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard 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 (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3141 = "South Sudan Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.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,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-12 = "Azores 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" dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exedfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exepowershell.exedfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 1448 powershell.exe 1448 powershell.exe 1836 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe 1836 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe 1348 powershell.exe 1348 powershell.exe 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe 1308 powershell.exe 1308 powershell.exe 3508 powershell.exe 3508 powershell.exe 3780 powershell.exe 3780 powershell.exe 1492 powershell.exe 1492 powershell.exe 4736 powershell.exe 4736 powershell.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4468 csrss.exe 4468 csrss.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4468 csrss.exe 4468 csrss.exe 4308 injector.exe 4308 injector.exe 4468 csrss.exe 4468 csrss.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe 4308 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exedfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 1448 powershell.exe Token: SeDebugPrivilege 1836 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Token: SeImpersonatePrivilege 1836 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe Token: SeDebugPrivilege 1348 powershell.exe Token: SeDebugPrivilege 1308 powershell.exe Token: SeDebugPrivilege 3508 powershell.exe Token: SeDebugPrivilege 3780 powershell.exe Token: SeDebugPrivilege 1492 powershell.exe Token: SeDebugPrivilege 4736 powershell.exe Token: SeSystemEnvironmentPrivilege 4468 csrss.exe Token: SeSecurityPrivilege 1816 sc.exe Token: SeSecurityPrivilege 1816 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exedfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 1836 wrote to memory of 1448 1836 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe powershell.exe PID 1836 wrote to memory of 1448 1836 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe powershell.exe PID 1836 wrote to memory of 1448 1836 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe powershell.exe PID 4508 wrote to memory of 1348 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe powershell.exe PID 4508 wrote to memory of 1348 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe powershell.exe PID 4508 wrote to memory of 1348 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe powershell.exe PID 4508 wrote to memory of 4416 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe cmd.exe PID 4508 wrote to memory of 4416 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe cmd.exe PID 4416 wrote to memory of 3436 4416 cmd.exe netsh.exe PID 4416 wrote to memory of 3436 4416 cmd.exe netsh.exe PID 4508 wrote to memory of 1308 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe powershell.exe PID 4508 wrote to memory of 1308 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe powershell.exe PID 4508 wrote to memory of 1308 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe powershell.exe PID 4508 wrote to memory of 3508 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe powershell.exe PID 4508 wrote to memory of 3508 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe powershell.exe PID 4508 wrote to memory of 3508 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe powershell.exe PID 4508 wrote to memory of 4468 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe csrss.exe PID 4508 wrote to memory of 4468 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe csrss.exe PID 4508 wrote to memory of 4468 4508 dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe csrss.exe PID 4468 wrote to memory of 3780 4468 csrss.exe powershell.exe PID 4468 wrote to memory of 3780 4468 csrss.exe powershell.exe PID 4468 wrote to memory of 3780 4468 csrss.exe powershell.exe PID 4468 wrote to memory of 1492 4468 csrss.exe powershell.exe PID 4468 wrote to memory of 1492 4468 csrss.exe powershell.exe PID 4468 wrote to memory of 1492 4468 csrss.exe powershell.exe PID 4468 wrote to memory of 4736 4468 csrss.exe powershell.exe PID 4468 wrote to memory of 4736 4468 csrss.exe powershell.exe PID 4468 wrote to memory of 4736 4468 csrss.exe powershell.exe PID 4468 wrote to memory of 4308 4468 csrss.exe injector.exe PID 4468 wrote to memory of 4308 4468 csrss.exe injector.exe PID 4696 wrote to memory of 948 4696 windefender.exe cmd.exe PID 4696 wrote to memory of 948 4696 windefender.exe cmd.exe PID 4696 wrote to memory of 948 4696 windefender.exe cmd.exe PID 948 wrote to memory of 1816 948 cmd.exe sc.exe PID 948 wrote to memory of 1816 948 cmd.exe sc.exe PID 948 wrote to memory of 1816 948 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\dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe"C:\Users\Admin\AppData\Local\Temp\dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1836 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1448 -
C:\Users\Admin\AppData\Local\Temp\dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.exe"C:\Users\Admin\AppData\Local\Temp\dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b.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:4508 -
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:1348 -
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:4416 -
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:3436 -
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:1308 -
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:3508 -
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:4468 -
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:3780 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:1616 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1488
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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:1492 -
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:4736 -
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:4308 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4320 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4696 -
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:948 -
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:1816
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3792
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c0964a7b213e7317c3eb7eadb067f7ae
SHA1eb928b900fae5d76d21a918220c58e3025e98f69
SHA256b060897aaf68dc30312743b6314c22324005a6b200ebb0fb2920d7fd72724b01
SHA5129f70caf0fbda3f4764731edf5d00577ae2d5bda6279e74421a21e6b3c47a7a18fd4f8da81c39e5a9234403eaa0383c170a81577256fe135d671b6b7bb06321ef
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD545045e0863c2b7489993152341e8aa4c
SHA14eda6c685c04da1070bc1b1ff048993a541d27f2
SHA2567d9f9c264ef5a5f68ad2bcc3a0720963e7e4c956a97a717329498b9b9968483a
SHA512e01999e2d40ace32a2fbcbaa4c19d5dcbe7a9fcada8e8e4bdaf3bd85b07a0c741b7c54ff2b0d055485c1352120a4ae55bfa63dd5bad60148e56e1f5a2a8ebc2b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5afcbcecf69ab75e708e457e2c151dfb2
SHA125cefb8053bcd478208117f92548cf712f7fe560
SHA256ce244fb5c56e3fd69a864df9125e1f2b4ae952f3e19d0a2a693d9224fd6682f9
SHA51255a87ed468042426df781f6fc02478ac4cef506800a2cadbc55c2ad57f86af8453cc6978687e102dddad57123ba53202271fc090023a0c296df858d7dfbafa96
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ca68cf401ce264c44dbdc8a54f450b98
SHA1972995b29ce0e9d496aacd7ac7ecaa1458971146
SHA2562d890e25d11e1415bc18394dcd42d712c6380c51f3e3656c975da573b11317ca
SHA512307397650bd3f64aad5b63416f6fc2caec50eca8bf87da81e317de577d2a75de7e3cfbcd5f5b3d852b08d4b69edd188520fb7e71eb230ff89e14ed6be10ccbaa
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53ade776a8cf01f55bb8e5f52de3297d5
SHA197fa9c2f02685c65233636bc640ce3ef634dbe2e
SHA2564269e20bf5cc0d7c686d7b361c5f448b9ab2e6a674f27597cad2796be1b4e0bc
SHA512ca187f660380a21d3d84dc1cbe122588663b2451971df18670c5c2856a6a197f9f028033e04dbbbe2ed433524d0456021c3f16e8664a28829d67b34e0d854bda
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Filesize
4.1MB
MD5a9037c859a7a0837f9ee5fd164d27c68
SHA1eb9342af53d004ee68aa719dc131a2858aec0973
SHA256dfd0d4827db077c641b69e7b4900746ee1da8691ce278886aa9fa6ed8a46a12b
SHA512b612c4d751e1a6bb2d6972af5e3ae345d6c1a47d596e3da4c2df95fa76e0ec25e675b242f4a2c50644d3c49b02e3fdc4ac450df65e50b707da7581759a200b24
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec