Analysis
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max time kernel
149s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 14:05
Static task
static1
Behavioral task
behavioral1
Sample
4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe
Resource
win10v2004-20240508-en
General
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Target
4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe
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Size
4.1MB
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MD5
d4a08929a094c342b3ecbf39320d8475
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SHA1
62bce2778fbb81fe72ab825997770170447567db
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SHA256
4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a
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SHA512
a1f39943cd15412c5dfa372b6bcecaaba7a42e4a6919a2cec922d663e60381f10ae6bb412294186869e183d585a915f5edd134321658ccdc9759b01503e7bfbb
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SSDEEP
98304:IuOdAWE/bfbxbxBimum48oJjLrUZhWcgWy75MTps2CObMUZCzBSj:IuOpIddBi3V8Ojm7gWylM939CW
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/864-2-0x0000000004A20000-0x000000000530B000-memory.dmp family_glupteba behavioral1/memory/864-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/864-57-0x0000000004A20000-0x000000000530B000-memory.dmp family_glupteba behavioral1/memory/864-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/864-54-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/1744-188-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/3028-219-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/3028-229-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/3028-231-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/3028-235-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/3028-238-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/3028-241-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/3028-243-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/3028-247-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/3028-250-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/3028-253-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/3028-255-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/3028-259-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/3028-262-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 4420 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 3028 csrss.exe 2424 injector.exe 1964 windefender.exe 4936 windefender.exe -
Processes:
resource yara_rule behavioral1/files/0x00090000000233f2-223.dat upx behavioral1/memory/1964-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4936-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1964-228-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4936-232-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4936-237-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\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 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 -
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:
4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe -
Drops file in Windows directory 4 IoCs
Processes:
csrss.exe4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exedescription ioc Process File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe File created C:\Windows\rss\csrss.exe 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid Process 4884 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 1752 powershell.exe 4620 powershell.exe 2136 powershell.exe 2148 powershell.exe 4348 powershell.exe 2388 powershell.exe 1324 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 1976 schtasks.exe 2044 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exepowershell.exepowershell.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\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\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time" windefender.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,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-82 = "Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.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\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.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\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates 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,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exepowershell.exe4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 1324 powershell.exe 1324 powershell.exe 864 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 864 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 1752 powershell.exe 1752 powershell.exe 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 4620 powershell.exe 4620 powershell.exe 4620 powershell.exe 2136 powershell.exe 2136 powershell.exe 2136 powershell.exe 2148 powershell.exe 2148 powershell.exe 4348 powershell.exe 4348 powershell.exe 2388 powershell.exe 2388 powershell.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 3028 csrss.exe 3028 csrss.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 3028 csrss.exe 3028 csrss.exe 2424 injector.exe 2424 injector.exe 3028 csrss.exe 3028 csrss.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe 2424 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 1324 powershell.exe Token: SeDebugPrivilege 864 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Token: SeImpersonatePrivilege 864 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe Token: SeDebugPrivilege 1752 powershell.exe Token: SeDebugPrivilege 4620 powershell.exe Token: SeDebugPrivilege 2136 powershell.exe Token: SeDebugPrivilege 2148 powershell.exe Token: SeDebugPrivilege 4348 powershell.exe Token: SeDebugPrivilege 2388 powershell.exe Token: SeSystemEnvironmentPrivilege 3028 csrss.exe Token: SeSecurityPrivilege 4884 sc.exe Token: SeSecurityPrivilege 4884 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 864 wrote to memory of 1324 864 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 84 PID 864 wrote to memory of 1324 864 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 84 PID 864 wrote to memory of 1324 864 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 84 PID 1744 wrote to memory of 1752 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 94 PID 1744 wrote to memory of 1752 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 94 PID 1744 wrote to memory of 1752 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 94 PID 1744 wrote to memory of 1004 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 98 PID 1744 wrote to memory of 1004 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 98 PID 1004 wrote to memory of 4420 1004 cmd.exe 100 PID 1004 wrote to memory of 4420 1004 cmd.exe 100 PID 1744 wrote to memory of 4620 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 101 PID 1744 wrote to memory of 4620 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 101 PID 1744 wrote to memory of 4620 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 101 PID 1744 wrote to memory of 2136 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 105 PID 1744 wrote to memory of 2136 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 105 PID 1744 wrote to memory of 2136 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 105 PID 1744 wrote to memory of 3028 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 107 PID 1744 wrote to memory of 3028 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 107 PID 1744 wrote to memory of 3028 1744 4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe 107 PID 3028 wrote to memory of 2148 3028 csrss.exe 108 PID 3028 wrote to memory of 2148 3028 csrss.exe 108 PID 3028 wrote to memory of 2148 3028 csrss.exe 108 PID 3028 wrote to memory of 4348 3028 csrss.exe 113 PID 3028 wrote to memory of 4348 3028 csrss.exe 113 PID 3028 wrote to memory of 4348 3028 csrss.exe 113 PID 3028 wrote to memory of 2388 3028 csrss.exe 116 PID 3028 wrote to memory of 2388 3028 csrss.exe 116 PID 3028 wrote to memory of 2388 3028 csrss.exe 116 PID 3028 wrote to memory of 2424 3028 csrss.exe 118 PID 3028 wrote to memory of 2424 3028 csrss.exe 118 PID 1964 wrote to memory of 3992 1964 windefender.exe 125 PID 1964 wrote to memory of 3992 1964 windefender.exe 125 PID 1964 wrote to memory of 3992 1964 windefender.exe 125 PID 3992 wrote to memory of 4884 3992 cmd.exe 126 PID 3992 wrote to memory of 4884 3992 cmd.exe 126 PID 3992 wrote to memory of 4884 3992 cmd.exe 126 -
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\4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe"C:\Users\Admin\AppData\Local\Temp\4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:864 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1324
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C:\Users\Admin\AppData\Local\Temp\4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.exe"C:\Users\Admin\AppData\Local\Temp\4aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a.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:1744 -
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:1752
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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:1004 -
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:4420
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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:4620
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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:2136
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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:3028 -
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:2148
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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:1976
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3952
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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:4348
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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:2388
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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:2424
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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:2044
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1964 -
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:3992 -
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:4884
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4936
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b16d2f7102ae3341154f4ab21a1d2cea
SHA1b7f5b0c8f57c6552371dc7f74f287e3dbda314eb
SHA2560c5d1dff6aff177987983a6b2eef038e80118ea557f9e3e6624515b76b87e06f
SHA512fc6d1bd2f571033378280456a4532eb2bbd8324da01bc0c08333e5ee8d9c6d76a699d4c71982306a44f1d2481c2ea78b2c81fea534e70a6141f64069d4a097e8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ead4fb387966ac8fcd239f6cbf8af75e
SHA1837c1b7863f61e72c0acab2879294cc909f8dd10
SHA2561d46673fbf3dc685e2b61108295f385bc606ff853e341962095b8b2a7471cda5
SHA512efc1e5b64c050161168a3330144f75ca86c77fc421463279cad9ee1a26ca35a2ceb8377dbd4978c72cc59891b2439a9ce8ef0c0a31470640384056c11c5d74de
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56d1e2dbcbb563036f71555e76e28801f
SHA1ad371a9642a6ed930f780fcb9fa79b0c175ba18d
SHA2569210675222a41a71e75d65d976d45dd748fa8d76f51304dc5f29b41cb19f2cd7
SHA512a3fa6eb85b6cbe49b270db1c9175aaf054d47b7ab540bc0c171bf9601ec5d2d60cb611d79f5ac6b4a39723b174db54bff6c5cc6a4ebd6fed09a984e6d2cb3127
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59a383f993dc37654f26b03d6db721e7a
SHA18f6480105b569c9f34494c7f8051c34a114714c0
SHA256d6debe193435b05492d3c06167927465d5dfc0173ce45f56e778a07e5bbe2bb8
SHA512905000c8a3542e77bcbe689db4a64c60b3e650deb48314853dc9fa5ef1fa2d52fefec45d9d0c1eb56d26442c51854ac5be10cb6665f52817422379c23e9cc1fb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58bf1f0358448a6fc83fdb3cb1eda6459
SHA147257db2a398346f5123e48b04bb576f20d77836
SHA256f04986b5078abca4de4452d4acf6d949f7bf0e71d46fcb058227259c3a7e4706
SHA51257ef0e1d291b730d7146e03c9e949ce540c5b076e36386f4c0b3b23f35bfce9ff2ff12db4638b64d033fc80b090ad81d71748ec29002e0cf794813221b1263ec
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Filesize
4.1MB
MD5d4a08929a094c342b3ecbf39320d8475
SHA162bce2778fbb81fe72ab825997770170447567db
SHA2564aa3cb23e42721af2127c709a5bca172151a63161b08992dbc3d98e873e24e1a
SHA512a1f39943cd15412c5dfa372b6bcecaaba7a42e4a6919a2cec922d663e60381f10ae6bb412294186869e183d585a915f5edd134321658ccdc9759b01503e7bfbb
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec