Analysis
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max time kernel
150s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
16/05/2024, 10:20
Static task
static1
Behavioral task
behavioral1
Sample
b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe
Resource
win10v2004-20240508-en
General
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Target
b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe
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Size
4.1MB
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MD5
617840f6e2dbf1078532fd19df645752
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SHA1
4d4dd1a1af1a49d86dc17524eeb7427880d26083
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SHA256
b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70
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SHA512
b445965e844bf547ba32b1d6a36f29ee7a97b7b41085c9f7d133610b1d448f096d87c29e3a82c6005fe94b3521b52fc9fe4bd8ee69bf4ef10b29c475ce02fd52
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SSDEEP
98304:1BH5QtHgtXZGwxAeX68LG3wNCsYjHyiS0gsLIyJOWEFSdaDQG3a9ntR:1BZQtHgtXlxHq4G3ixkyiJTOnSQDy9nr
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral1/memory/2256-2-0x0000000002D90000-0x000000000367B000-memory.dmp family_glupteba behavioral1/memory/2256-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3536-56-0x0000000002D30000-0x000000000361B000-memory.dmp family_glupteba behavioral1/memory/2256-80-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3536-135-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1884-210-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1884-224-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1884-226-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1884-229-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1884-232-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1884-235-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1884-238-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1884-241-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1884-244-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1884-247-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1884-250-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1884-253-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1884-256-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2352 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1884 csrss.exe 1904 injector.exe 4852 windefender.exe 4612 windefender.exe -
resource yara_rule behavioral1/files/0x000900000002342c-219.dat upx behavioral1/memory/4852-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4852-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4612-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4612-233-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4612-242-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\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.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description 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.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe File created C:\Windows\rss\csrss.exe b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.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.
pid Process 4452 sc.exe -
pid Process 1428 powershell.exe 1632 powershell.exe 4252 powershell.exe 2988 powershell.exe 4476 powershell.exe 4852 powershell.exe 4224 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3020 schtasks.exe 4516 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2632 = "Norfolk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.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,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight 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,-501 = "Nepal Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.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,-841 = "Argentina 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\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-401 = "Arabic 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,-334 = "Jordan Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs 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,-682 = "E. Australia Standard Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.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,-132 = "US Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\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,-334 = "Jordan Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4252 powershell.exe 4252 powershell.exe 2256 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 2256 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 2988 powershell.exe 2988 powershell.exe 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 4476 powershell.exe 4476 powershell.exe 4852 powershell.exe 4852 powershell.exe 4224 powershell.exe 4224 powershell.exe 1428 powershell.exe 1428 powershell.exe 1632 powershell.exe 1632 powershell.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1884 csrss.exe 1884 csrss.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1884 csrss.exe 1884 csrss.exe 1884 csrss.exe 1884 csrss.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe 1904 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4252 powershell.exe Token: SeDebugPrivilege 2256 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Token: SeImpersonatePrivilege 2256 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Token: SeDebugPrivilege 2988 powershell.exe Token: SeDebugPrivilege 4476 powershell.exe Token: SeDebugPrivilege 4852 powershell.exe Token: SeDebugPrivilege 4224 powershell.exe Token: SeDebugPrivilege 1428 powershell.exe Token: SeDebugPrivilege 1632 powershell.exe Token: SeSystemEnvironmentPrivilege 1884 csrss.exe Token: SeSecurityPrivilege 4452 sc.exe Token: SeSecurityPrivilege 4452 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2256 wrote to memory of 4252 2256 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 87 PID 2256 wrote to memory of 4252 2256 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 87 PID 2256 wrote to memory of 4252 2256 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 87 PID 3536 wrote to memory of 2988 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 98 PID 3536 wrote to memory of 2988 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 98 PID 3536 wrote to memory of 2988 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 98 PID 3536 wrote to memory of 4428 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 101 PID 3536 wrote to memory of 4428 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 101 PID 4428 wrote to memory of 2352 4428 cmd.exe 103 PID 4428 wrote to memory of 2352 4428 cmd.exe 103 PID 3536 wrote to memory of 4476 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 105 PID 3536 wrote to memory of 4476 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 105 PID 3536 wrote to memory of 4476 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 105 PID 3536 wrote to memory of 4852 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 107 PID 3536 wrote to memory of 4852 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 107 PID 3536 wrote to memory of 4852 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 107 PID 3536 wrote to memory of 1884 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 109 PID 3536 wrote to memory of 1884 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 109 PID 3536 wrote to memory of 1884 3536 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 109 PID 1884 wrote to memory of 4224 1884 csrss.exe 110 PID 1884 wrote to memory of 4224 1884 csrss.exe 110 PID 1884 wrote to memory of 4224 1884 csrss.exe 110 PID 1884 wrote to memory of 1428 1884 csrss.exe 116 PID 1884 wrote to memory of 1428 1884 csrss.exe 116 PID 1884 wrote to memory of 1428 1884 csrss.exe 116 PID 1884 wrote to memory of 1632 1884 csrss.exe 118 PID 1884 wrote to memory of 1632 1884 csrss.exe 118 PID 1884 wrote to memory of 1632 1884 csrss.exe 118 PID 1884 wrote to memory of 1904 1884 csrss.exe 120 PID 1884 wrote to memory of 1904 1884 csrss.exe 120 PID 4852 wrote to memory of 5056 4852 windefender.exe 127 PID 4852 wrote to memory of 5056 4852 windefender.exe 127 PID 4852 wrote to memory of 5056 4852 windefender.exe 127 PID 5056 wrote to memory of 4452 5056 cmd.exe 128 PID 5056 wrote to memory of 4452 5056 cmd.exe 128 PID 5056 wrote to memory of 4452 5056 cmd.exe 128 -
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\b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe"C:\Users\Admin\AppData\Local\Temp\b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2256 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4252
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C:\Users\Admin\AppData\Local\Temp\b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe"C:\Users\Admin\AppData\Local\Temp\b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.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:3536 -
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:2988
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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:4428 -
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:2352
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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:4476
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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:4852
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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:1884 -
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:4224
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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:3020
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵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:1428
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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:1632
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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:1904
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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:4516
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4852 -
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:5056 -
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:4452
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4612
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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56549ab132ec0ead682293c3dd1da4659
SHA17b3b3b352fc7490d66b1326fc53b5fdd2212efb7
SHA256fea3b7d331c551d1a9b91d13d0580312dabbafe9736afe9cd3b82d7a14561b0f
SHA512cf8adfef9d60fea10e0b8a6a3de7268ded2cf765a1f301f7ad28e0a2e7da95df8ba5a1fae2eb58d409311767e7a499c0174923d09e0bd9b77a3dbe7de480ab1f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD558b24f0509b34986533cbfa8c57b3d7f
SHA1cf0606a2d5e9885107b5c0deccdb95ff18eb1a94
SHA25609e77ca032cfbf6ede00a65ea1420f12ed7e8635d90528678adadce505b77b04
SHA512e8b164a730086771351e5b2a25b6f6e573b339cc7ae95cee7f63ee59b44517a414682ac19456c4c3e9bc4bd5ec744dc45c1d39916cb446160774efff05f2f7c9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ec1e507bacb7cf8b57ea5027acedfeff
SHA1c32954a9e96e1b1b96a2ead585482d2797d51919
SHA25679c49948d6c05a38859d7d6572f5f7006a99810009f3e6ac79e9584ba6652f99
SHA5121f609f34ab0435b9f5bbd0e5a3978a5a13c03c3b432b99d83f413d8367aa1dc23f17e46864e36c45be638d40206377defc2b9e8607a9bd0ee5a53fc4fc1bf47b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD584f172aca79b0a0cce37c218427e25cd
SHA167b3d0421ab387eae17cbcc2fd5418086fb32fb5
SHA2560214d11b584b0fdb3dc5f3c073d4bddafdda58ce79b0b7b9d97685a0d74afb06
SHA5128d371b23f0af2d18bcb289769a11dca0e59294808f4979f434904c29d8dba6429913f881a1128c4855811dc39d023abd1d2c542f4a41187cbf234106aa56a241
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b8791f7b815484fb758db2649ed28a7a
SHA1df191d2b9379663ef2b4b18266bf6c094603f530
SHA25665d36b1dcdee153950325c8fa756942ead3969c490cda75ff9c23429f6ba7c7b
SHA512705cc1c452ba40db389f1f92705ab61e3878bd552b88328018830171d109f2271bc2f9aa46f0d87d790f9a28b2216b8ac68aa1f6ef5a33dce8cba62c4ab7b0c8
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Filesize
4.1MB
MD5617840f6e2dbf1078532fd19df645752
SHA14d4dd1a1af1a49d86dc17524eeb7427880d26083
SHA256b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70
SHA512b445965e844bf547ba32b1d6a36f29ee7a97b7b41085c9f7d133610b1d448f096d87c29e3a82c6005fe94b3521b52fc9fe4bd8ee69bf4ef10b29c475ce02fd52
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec