Analysis
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max time kernel
149s -
max time network
155s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 20:40
Static task
static1
Behavioral task
behavioral1
Sample
4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe
Resource
win10v2004-20240508-en
General
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Target
4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe
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Size
4.1MB
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MD5
2b0e7dd9a821b775705acf166d96e59a
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SHA1
a79f1f477a253ce730f7b58bf34c4c5258cc4da4
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SHA256
4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e
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SHA512
c71e855cf9b5fb306dea7d926cf2397afedfaad91accc29d6184ed280454bcc2384f626d4b4b5f242638960b8b4b7c0d7a4c506228a2e497034d457013656c9a
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SSDEEP
98304:r7sgfTqZm7fywQIpjGUn+cmloZHued8miXbTsPufBvNX:rzgmDywQg+foZ8mw6Sp
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/2816-2-0x0000000004BF0000-0x00000000054DB000-memory.dmp family_glupteba behavioral2/memory/2816-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2816-72-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2816-78-0x0000000004BF0000-0x00000000054DB000-memory.dmp family_glupteba behavioral2/memory/2816-121-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4748-120-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4748-172-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3384-195-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3384-204-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3384-216-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3384-220-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3384-224-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3384-228-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3384-232-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3384-236-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3384-240-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3384-244-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3384-248-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3384-252-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 5024 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 3384 csrss.exe 1412 injector.exe 5108 windefender.exe 488 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x001a00000002ab25-207.dat upx behavioral2/memory/5108-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/488-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5108-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/488-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/488-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\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 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 -
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:
4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe -
Drops file in Windows directory 4 IoCs
Processes:
4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe File created C:\Windows\rss\csrss.exe 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid Process 2440 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 1072 powershell.exe 3604 powershell.exe 2272 powershell.exe 1932 powershell.exe 4488 powershell.exe 4288 powershell.exe 1232 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 4520 schtasks.exe 4132 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exepowershell.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-672 = "AUS Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.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,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-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,-1662 = "Bahia Standard Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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,-251 = "Dateline Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs 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,-262 = "GMT 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\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,-92 = "Pacific SA Standard Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-51 = "Greenland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.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,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exepowershell.exe4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 2272 powershell.exe 2272 powershell.exe 2816 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 2816 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 1932 powershell.exe 1932 powershell.exe 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 4488 powershell.exe 4488 powershell.exe 4288 powershell.exe 4288 powershell.exe 1232 powershell.exe 1232 powershell.exe 1072 powershell.exe 1072 powershell.exe 3604 powershell.exe 3604 powershell.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 3384 csrss.exe 3384 csrss.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 3384 csrss.exe 3384 csrss.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 3384 csrss.exe 3384 csrss.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe 1412 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 2272 powershell.exe Token: SeDebugPrivilege 2816 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Token: SeImpersonatePrivilege 2816 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe Token: SeDebugPrivilege 1932 powershell.exe Token: SeDebugPrivilege 4488 powershell.exe Token: SeDebugPrivilege 4288 powershell.exe Token: SeDebugPrivilege 1232 powershell.exe Token: SeDebugPrivilege 1072 powershell.exe Token: SeDebugPrivilege 3604 powershell.exe Token: SeSystemEnvironmentPrivilege 3384 csrss.exe Token: SeSecurityPrivilege 2440 sc.exe Token: SeSecurityPrivilege 2440 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 2816 wrote to memory of 2272 2816 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 80 PID 2816 wrote to memory of 2272 2816 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 80 PID 2816 wrote to memory of 2272 2816 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 80 PID 4748 wrote to memory of 1932 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 86 PID 4748 wrote to memory of 1932 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 86 PID 4748 wrote to memory of 1932 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 86 PID 4748 wrote to memory of 4508 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 88 PID 4748 wrote to memory of 4508 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 88 PID 4508 wrote to memory of 5024 4508 cmd.exe 90 PID 4508 wrote to memory of 5024 4508 cmd.exe 90 PID 4748 wrote to memory of 4488 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 91 PID 4748 wrote to memory of 4488 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 91 PID 4748 wrote to memory of 4488 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 91 PID 4748 wrote to memory of 4288 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 93 PID 4748 wrote to memory of 4288 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 93 PID 4748 wrote to memory of 4288 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 93 PID 4748 wrote to memory of 3384 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 95 PID 4748 wrote to memory of 3384 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 95 PID 4748 wrote to memory of 3384 4748 4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe 95 PID 3384 wrote to memory of 1232 3384 csrss.exe 96 PID 3384 wrote to memory of 1232 3384 csrss.exe 96 PID 3384 wrote to memory of 1232 3384 csrss.exe 96 PID 3384 wrote to memory of 1072 3384 csrss.exe 101 PID 3384 wrote to memory of 1072 3384 csrss.exe 101 PID 3384 wrote to memory of 1072 3384 csrss.exe 101 PID 3384 wrote to memory of 3604 3384 csrss.exe 104 PID 3384 wrote to memory of 3604 3384 csrss.exe 104 PID 3384 wrote to memory of 3604 3384 csrss.exe 104 PID 3384 wrote to memory of 1412 3384 csrss.exe 106 PID 3384 wrote to memory of 1412 3384 csrss.exe 106 PID 5108 wrote to memory of 2360 5108 windefender.exe 112 PID 5108 wrote to memory of 2360 5108 windefender.exe 112 PID 5108 wrote to memory of 2360 5108 windefender.exe 112 PID 2360 wrote to memory of 2440 2360 cmd.exe 113 PID 2360 wrote to memory of 2440 2360 cmd.exe 113 PID 2360 wrote to memory of 2440 2360 cmd.exe 113 -
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\4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe"C:\Users\Admin\AppData\Local\Temp\4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2816 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2272
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C:\Users\Admin\AppData\Local\Temp\4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.exe"C:\Users\Admin\AppData\Local\Temp\4a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e.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:4748 -
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:1932
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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:4508 -
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:5024
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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:4488
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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:4288
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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:3384 -
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:1232
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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:4520
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:432
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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:1072
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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:3604
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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:1412
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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:4132
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:5108 -
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:2360 -
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:2440
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:488
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
MD5c60330d58cbe377039269d0198248a5a
SHA189359b8080aee2f3cef4aad44a723caca9961dae
SHA25613f4090e9bb16f322426140aaa4618b14a15a6cbaec1fac9551794ab7213ab5f
SHA512633b24c811d7562af2da7a5586fe5079185e05d02c1834f74793a6ce03cf98964a37b9e82216177c58fc20c86b4590436d4d216f8601b8c1946a8b1ac72aa26e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5041f967e9374e13fb26027ff601a771b
SHA154246d03c3f1c3f0e0f5c3053ca5d9af542b6f6a
SHA256c72ab94b12408762d1fda5109fc44e1199bbfe679c95a367ad6d07a13b24add0
SHA5123dd5689315c503c18efafd7533989fd8c4dc369f1b77f247069e20ce31d24037dd75602016e9b79f0bda3161003945a2a4e63c6e4a35e6251f69c2f57c927d87
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e19379661429df8076db0c12fa0bff46
SHA1af8f6d43cccc3d040654ec53fffba3c4225a6733
SHA256805c7cbbd79cbd23434551a0bb8b5429e5bea8bfa3853942180c76483a60fb79
SHA5125c41e748995a49781ea85ef990efe55400d259006fadab1d7b9e2ad751875e9867ebc138166c6ce8a2ca51d3498c7908b83e2360e67a6b2d0b6040fc59951b09
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bec212a3746cb4a85fd1f939712bd4a5
SHA1ba464abe01135bd997a1533431039926af761342
SHA2566fe38c37f4d41ae9ce3bed9a6409d19ba60aeb6078111a3a1241e102a54e88a8
SHA5123e0b7478848c0283b59e3bc5da1eb9080f872608bd81bd8c014fb2f370253e9a827e0d5f88b8fdb82303ca2c00126ebfa36b955e158d5f28c7d7cd7ea3716c3f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD593a4dc63c4e2bc60bf00ab72668e4db9
SHA11ce52d434c0466a284ea0736ab7e97036b9577d5
SHA2569c69063c611061fd4d0edeeff4dc5ea8c7f386ee9ba4833d2daa049d74c0139f
SHA512524d82eedbef5e915e7ba272aadffeedc93e8bfab9e25e1ee28a0ddba2c9caef61386244551c5caf499a1043ebe1e5e3c6bca24ab654d0a670053c65407a0bbd
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Filesize
4.1MB
MD52b0e7dd9a821b775705acf166d96e59a
SHA1a79f1f477a253ce730f7b58bf34c4c5258cc4da4
SHA2564a19d644aa02cc453bf994e19af077dd4bcecaa8d823a2577cad7e4bc56f577e
SHA512c71e855cf9b5fb306dea7d926cf2397afedfaad91accc29d6184ed280454bcc2384f626d4b4b5f242638960b8b4b7c0d7a4c506228a2e497034d457013656c9a
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec