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Analysis
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max time kernel
303s -
max time network
315s -
platform
windows10-1703_x64 -
resource
win10-20240221-en -
resource tags
arch:x64arch:x86image:win10-20240221-enlocale:en-usos:windows10-1703-x64system -
submitted
28/03/2024, 22:31
Static task
static1
Behavioral task
behavioral1
Sample
617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe
Resource
win7-20240319-en
General
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Target
617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe
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Size
4.2MB
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MD5
257c488346f9d42287d83521e06da3f2
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SHA1
38320c73dfee2073f07d464c478460923d07022c
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SHA256
617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3
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SHA512
d45733709a187fc383060bde671a51b4f785c9c4c1b08d8eb67b8042c05f324c5169f0bd67b19fdd0de9c5ba6137fd3185f4f408aedb976d1a4ab111b22b363c
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SSDEEP
98304:6WB9UVhA2DA3F9omLq5zgqqh3kVtgTn8LWgIpmzg/:/B9she37izqh3QgT8L99z0
Malware Config
Signatures
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Glupteba payload 38 IoCs
resource yara_rule behavioral2/memory/4704-2-0x0000000003050000-0x000000000393B000-memory.dmp family_glupteba behavioral2/memory/4704-3-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/4704-73-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/4704-300-0x0000000003050000-0x000000000393B000-memory.dmp family_glupteba behavioral2/memory/4704-301-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/4704-304-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3924-307-0x0000000002F20000-0x000000000380B000-memory.dmp family_glupteba behavioral2/memory/3924-308-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3924-560-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3924-589-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3924-828-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3924-1052-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1056-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1309-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1805-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1808-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1815-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1817-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1819-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1821-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1823-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1825-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1827-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1829-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1831-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1833-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1835-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1837-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1839-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1841-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1843-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1845-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1847-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1849-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1851-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1853-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1855-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba behavioral2/memory/3464-1857-0x0000000000400000-0x0000000000ECF000-memory.dmp family_glupteba -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe = "0" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 524 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3464 csrss.exe 1384 injector.exe 200 windefender.exe 5088 windefender.exe -
resource yara_rule behavioral2/files/0x000700000001ac09-1809.dat upx behavioral2/memory/200-1814-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5088-1816-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5088-1820-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe = "0" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2772066395-907917261-1982757236-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (str) \REGISTRY\USER\S-1-5-21-2772066395-907917261-1982757236-1000\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 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 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 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe File created C:\Windows\rss\csrss.exe 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.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 2392 sc.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 4828 schtasks.exe 508 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-442 = "Arabian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2452 = "Saint Pierre Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates 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\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-932 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Control\NetTrace\Session netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.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\1a\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4356 powershell.exe 4356 powershell.exe 4356 powershell.exe 4704 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 4704 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 888 powershell.exe 888 powershell.exe 888 powershell.exe 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 2264 powershell.exe 2264 powershell.exe 2264 powershell.exe 508 powershell.exe 508 powershell.exe 508 powershell.exe 4360 powershell.exe 4360 powershell.exe 4360 powershell.exe 2012 powershell.exe 2012 powershell.exe 2012 powershell.exe 4432 powershell.exe 4432 powershell.exe 4432 powershell.exe 1384 injector.exe 1384 injector.exe 1384 injector.exe 1384 injector.exe 1384 injector.exe 1384 injector.exe 1384 injector.exe 1384 injector.exe 3464 csrss.exe 3464 csrss.exe 1384 injector.exe 1384 injector.exe 1384 injector.exe 1384 injector.exe 1384 injector.exe 1384 injector.exe 3464 csrss.exe 3464 csrss.exe 1384 injector.exe 1384 injector.exe 1384 injector.exe 1384 injector.exe 1384 injector.exe 1384 injector.exe 3464 csrss.exe 3464 csrss.exe 1384 injector.exe 1384 injector.exe 1384 injector.exe 1384 injector.exe 1384 injector.exe -
Suspicious use of AdjustPrivilegeToken 13 IoCs
description pid Process Token: SeDebugPrivilege 4356 powershell.exe Token: SeDebugPrivilege 4704 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Token: SeImpersonatePrivilege 4704 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe Token: SeDebugPrivilege 888 powershell.exe Token: SeDebugPrivilege 2264 powershell.exe Token: SeDebugPrivilege 508 powershell.exe Token: SeDebugPrivilege 4360 powershell.exe Token: SeDebugPrivilege 2012 powershell.exe Token: SeDebugPrivilege 4432 powershell.exe Token: SeSystemEnvironmentPrivilege 3464 csrss.exe Token: SeSecurityPrivilege 2392 sc.exe Token: SeSecurityPrivilege 2392 sc.exe Token: SeDebugPrivilege 236 powershell.exe -
Suspicious use of WriteProcessMemory 39 IoCs
description pid Process procid_target PID 4704 wrote to memory of 4356 4704 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 74 PID 4704 wrote to memory of 4356 4704 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 74 PID 4704 wrote to memory of 4356 4704 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 74 PID 3924 wrote to memory of 888 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 79 PID 3924 wrote to memory of 888 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 79 PID 3924 wrote to memory of 888 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 79 PID 3924 wrote to memory of 2452 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 81 PID 3924 wrote to memory of 2452 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 81 PID 2452 wrote to memory of 524 2452 cmd.exe 83 PID 2452 wrote to memory of 524 2452 cmd.exe 83 PID 3924 wrote to memory of 2264 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 84 PID 3924 wrote to memory of 2264 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 84 PID 3924 wrote to memory of 2264 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 84 PID 3924 wrote to memory of 508 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 86 PID 3924 wrote to memory of 508 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 86 PID 3924 wrote to memory of 508 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 86 PID 3924 wrote to memory of 3464 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 88 PID 3924 wrote to memory of 3464 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 88 PID 3924 wrote to memory of 3464 3924 617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe 88 PID 3464 wrote to memory of 4360 3464 csrss.exe 89 PID 3464 wrote to memory of 4360 3464 csrss.exe 89 PID 3464 wrote to memory of 4360 3464 csrss.exe 89 PID 3464 wrote to memory of 2012 3464 csrss.exe 96 PID 3464 wrote to memory of 2012 3464 csrss.exe 96 PID 3464 wrote to memory of 2012 3464 csrss.exe 96 PID 3464 wrote to memory of 4432 3464 csrss.exe 98 PID 3464 wrote to memory of 4432 3464 csrss.exe 98 PID 3464 wrote to memory of 4432 3464 csrss.exe 98 PID 3464 wrote to memory of 1384 3464 csrss.exe 100 PID 3464 wrote to memory of 1384 3464 csrss.exe 100 PID 200 wrote to memory of 4296 200 windefender.exe 107 PID 200 wrote to memory of 4296 200 windefender.exe 107 PID 200 wrote to memory of 4296 200 windefender.exe 107 PID 4296 wrote to memory of 2392 4296 cmd.exe 108 PID 4296 wrote to memory of 2392 4296 cmd.exe 108 PID 4296 wrote to memory of 2392 4296 cmd.exe 108 PID 3464 wrote to memory of 236 3464 csrss.exe 111 PID 3464 wrote to memory of 236 3464 csrss.exe 111 PID 3464 wrote to memory of 236 3464 csrss.exe 111 -
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\617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe"C:\Users\Admin\AppData\Local\Temp\617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4704 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4356
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C:\Users\Admin\AppData\Local\Temp\617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe"C:\Users\Admin\AppData\Local\Temp\617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3.exe"2⤵
- Windows security bypass
- Windows security modification
- 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:3924 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:888
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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:2452 -
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
- Modifies data under HKEY_USERS
PID:524
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2264
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:508
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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:3464 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4360
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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:4828
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4056
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2012
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4432
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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:1384
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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:508
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:200 -
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:4296 -
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:2392
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:236
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:5088
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
1B
MD5c4ca4238a0b923820dcc509a6f75849b
SHA1356a192b7913b04c54574d18c28d46e6395428ab
SHA2566b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
SHA5124dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
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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
MD51c19c16e21c97ed42d5beabc93391fc5
SHA18ad83f8e0b3acf8dfbbf87931e41f0d664c4df68
SHA2561bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05
SHA5127d18776d8f649b3d29c182ff03efc6cea8b527542ee55304980f24577aae8b64e37044407776e220984346c3998ace5f8853afa58c8b38407482a728e9495e0c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD5bc6d257a3d24a217d478090044689d7d
SHA1928978dbbfd69552a48e319146c98fd959d5bfdd
SHA25669061d600236f37c03f0e246115efc304dc1b8b3b60d0f842e445c55df772b19
SHA512f35f52d06440a1e6edf5f4c25b456da9274e09890ba239c331a046d8fa8eda7714123337224e6ff8946d8df721170c6e621d6e4029bf3f7adf0018e2c6615a6d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD56ba5ad597a40c8787bdaa5d38466a173
SHA1e855494addd48f7889dc683d30c3b1679f585513
SHA2560b9dcc83f2ad90e97aff559e1102cccf46be038b4ea78c4200b6f75a445a1edc
SHA5122dc09024729363221140f329a90bfe3755fcbded2570b6f466dcbb76a9304032503daa2d2030d68e285d877703b6642a819e0ca08a9da7abac7c3b40add08284
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD5161976c6c90120b2bfb18477b17a38de
SHA161df5ac3fbcd0356832c3316c44addf6f774a68a
SHA2563317f7981d58d4752b0eb4277e4021cbfb1562f99bcd7b34243eaa530dff12fb
SHA5128d3202dc1635be97f23950fc52da49b897dc1d1433f315313e8b930ec93587b028f2ef0fa421943f611d1c425a116fd79869545b8cb9052d5c555891d17abd77
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD5316267126cf829e1f67bd22e4c770a5d
SHA1e9d3b23e0b3cf2c395304cab711f4ac179334dfe
SHA25609f368723eb188b3be36a4a3a6fd4d33f9127d2cb3811226ab0d5b9aa921c07a
SHA512365a2cb103fba5a75d7858dde1d1c3f941ca4573a5650fa4aa37ce4064af42a52d679f94a240d2ae73798dd9ac58da130755d1b1be673f42f670a2355b5e18be
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD53e6f26062094954130e18b05759916ca
SHA1060e5970f8b0032eb04bcea93c84f01340d0a5aa
SHA256ee42d65523012f4e888425ddbee507c820e519c03207dd3771d0598ee90697ff
SHA51266b36c77b10d7a45793d24e93a50f95be7cca8248939a21d96efa314f6a7c152d663d6daeab081c1787be04f9eb791ee46899e927d4e8f26f2fd64153fc1efad
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD592f2a76bf0c6e5cd158d461594f17bd9
SHA1a826353c08c0801ec86cac4aee3eec7814921372
SHA256bb5ac9c82ebffb37abf1aaed0194a02e13144a324a15c48579d4a5bdbfa9305d
SHA5124a8cdd86d28e9b64e1c74fe0c5081e32779793e33b18bec8b1239eeba8e863eea3c0329c45bcd4d369956be82b6d92a789fa700d99a00d5d9d5421cdd71df2d1
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Filesize
4.2MB
MD5257c488346f9d42287d83521e06da3f2
SHA138320c73dfee2073f07d464c478460923d07022c
SHA256617e40d6941a593ad0383a22c0fdfc7a68640efd821efae79e2f4de687ed0ac3
SHA512d45733709a187fc383060bde671a51b4f785c9c4c1b08d8eb67b8042c05f324c5169f0bd67b19fdd0de9c5ba6137fd3185f4f408aedb976d1a4ab111b22b363c
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec