Analysis
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max time kernel
149s -
max time network
126s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 11:17
Static task
static1
Behavioral task
behavioral1
Sample
4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe
Resource
win10v2004-20240508-en
General
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Target
4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe
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Size
4.1MB
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MD5
4808163c116b40a9c3ab29ad6d656d6f
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SHA1
c7b767623b94fb1c7001a7ebb253008a7e7a629b
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SHA256
4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823
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SHA512
bfa6859b665be309ea451aea13255d7eae653f62fee93fc865acd40e02cfba431ff71c4427a79b2e9886960899afe55b373276159881a20d1890802f4b2e5a9b
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SSDEEP
98304:tH+PiUxpnK5pcCD6RLXH4DRMjOnEmJ5mWZ44js55cU5wvI2A:tH+PiSfw6Rz4ejOEAZ44S5J5ww2A
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/3564-2-0x0000000004510000-0x0000000004DFB000-memory.dmp family_glupteba behavioral2/memory/3564-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3564-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3564-51-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3564-54-0x0000000004510000-0x0000000004DFB000-memory.dmp family_glupteba behavioral2/memory/3368-125-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4552-203-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4552-212-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4552-214-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4552-216-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4552-218-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4552-220-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4552-222-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4552-224-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4552-226-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4552-228-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4552-230-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4552-232-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4552-234-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 1448 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 4552 csrss.exe 3400 injector.exe 1288 windefender.exe 3852 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002aa36-206.dat upx behavioral2/memory/1288-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1288-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3852-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3852-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\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 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 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:
4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe -
Drops file in Windows directory 4 IoCs
Processes:
4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.execsrss.exedescription ioc Process File created C:\Windows\rss\csrss.exe 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid Process 3004 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4084 powershell.exe 2504 powershell.exe 1748 powershell.exe 2064 powershell.exe 400 powershell.exe 4572 powershell.exe 3216 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 4200 schtasks.exe 2068 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.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\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2631 = "Norfolk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2872 = "Magallanes Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.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,-572 = "China Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.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,-161 = "Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2772 = "Omsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2751 = "Tomsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs 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,-672 = "AUS Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe 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\@tzres.dll,-571 = "China Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.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,-1412 = "Syria Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-722 = "Central Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2771 = "Omsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exepowershell.exe4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4084 powershell.exe 4084 powershell.exe 3564 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 3564 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 2504 powershell.exe 2504 powershell.exe 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 1748 powershell.exe 1748 powershell.exe 2064 powershell.exe 2064 powershell.exe 400 powershell.exe 400 powershell.exe 4572 powershell.exe 4572 powershell.exe 3216 powershell.exe 3216 powershell.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 4552 csrss.exe 4552 csrss.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 4552 csrss.exe 4552 csrss.exe 3400 injector.exe 3400 injector.exe 4552 csrss.exe 4552 csrss.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe 3400 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4084 powershell.exe Token: SeDebugPrivilege 3564 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Token: SeImpersonatePrivilege 3564 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe Token: SeDebugPrivilege 2504 powershell.exe Token: SeDebugPrivilege 1748 powershell.exe Token: SeDebugPrivilege 2064 powershell.exe Token: SeDebugPrivilege 400 powershell.exe Token: SeDebugPrivilege 4572 powershell.exe Token: SeDebugPrivilege 3216 powershell.exe Token: SeSystemEnvironmentPrivilege 4552 csrss.exe Token: SeSecurityPrivilege 3004 sc.exe Token: SeSecurityPrivilege 3004 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 3564 wrote to memory of 4084 3564 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 82 PID 3564 wrote to memory of 4084 3564 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 82 PID 3564 wrote to memory of 4084 3564 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 82 PID 3368 wrote to memory of 2504 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 87 PID 3368 wrote to memory of 2504 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 87 PID 3368 wrote to memory of 2504 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 87 PID 3368 wrote to memory of 5024 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 89 PID 3368 wrote to memory of 5024 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 89 PID 5024 wrote to memory of 1448 5024 cmd.exe 91 PID 5024 wrote to memory of 1448 5024 cmd.exe 91 PID 3368 wrote to memory of 1748 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 92 PID 3368 wrote to memory of 1748 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 92 PID 3368 wrote to memory of 1748 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 92 PID 3368 wrote to memory of 2064 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 94 PID 3368 wrote to memory of 2064 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 94 PID 3368 wrote to memory of 2064 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 94 PID 3368 wrote to memory of 4552 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 96 PID 3368 wrote to memory of 4552 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 96 PID 3368 wrote to memory of 4552 3368 4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe 96 PID 4552 wrote to memory of 400 4552 csrss.exe 97 PID 4552 wrote to memory of 400 4552 csrss.exe 97 PID 4552 wrote to memory of 400 4552 csrss.exe 97 PID 4552 wrote to memory of 4572 4552 csrss.exe 102 PID 4552 wrote to memory of 4572 4552 csrss.exe 102 PID 4552 wrote to memory of 4572 4552 csrss.exe 102 PID 4552 wrote to memory of 3216 4552 csrss.exe 105 PID 4552 wrote to memory of 3216 4552 csrss.exe 105 PID 4552 wrote to memory of 3216 4552 csrss.exe 105 PID 4552 wrote to memory of 3400 4552 csrss.exe 107 PID 4552 wrote to memory of 3400 4552 csrss.exe 107 PID 1288 wrote to memory of 1964 1288 windefender.exe 113 PID 1288 wrote to memory of 1964 1288 windefender.exe 113 PID 1288 wrote to memory of 1964 1288 windefender.exe 113 PID 1964 wrote to memory of 3004 1964 cmd.exe 114 PID 1964 wrote to memory of 3004 1964 cmd.exe 114 PID 1964 wrote to memory of 3004 1964 cmd.exe 114 -
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\4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe"C:\Users\Admin\AppData\Local\Temp\4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3564 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4084
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C:\Users\Admin\AppData\Local\Temp\4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.exe"C:\Users\Admin\AppData\Local\Temp\4b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823.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:3368 -
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:2504
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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:5024 -
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:1448
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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:1748
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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:2064
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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:4552 -
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:400
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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:4200
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2088
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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:4572
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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:3216
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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:3400
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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:2068
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1288 -
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:1964 -
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:3004
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3852
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bb705fa6fa452e473a256074f1fa7dac
SHA10590b30b18b5c5ead0ef79d4c18da58f3eb7209f
SHA256aaa528bf92121a395fceb6f426b4946b243306a0e5305b98f836752b45279fff
SHA512ce2b461c7dd837fd31fa5367c72d5bf53ae80f0afa1daf5788cf9d3386e7983638c12c08c2b3588eda1716146b314b1e3429111f31defe6e57d9b10c678eee8a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5617de67f45324b6b988e158f84d7b8f0
SHA13f188d11164d6a27dc6e89e74d3f18af73789731
SHA256c5a38bc0b532c2bae2d5db981361c80ed63bb2943c1adc35521d91a23f88151a
SHA5122cc30c3848c65260d18acc27465ab0d8a79887890538d79208a08eec71aa3c0802803fc98ae5b3973481e7e0b85ffb57dc169e221364e85b079b60976af55e1a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD546a529c0d03450b662714667d338d086
SHA1be711fada1b6a923c7a21d2c0811821a2f69cc90
SHA2568d01432424ec187bc9cd6861dbf5f092a099adda54f173c8358e58de8114b00d
SHA512301eb1ecddd35d1671c0dc270462e01620867b1036b399fb901cb8dd0d407c8695d0388625470b0072fb9f6dc35bbb95f88332098d6c07dde07e18deb29f1324
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53ef81134f76a78cbd340a1039cf651f5
SHA1653ea0235f19d1acf224d9b4b884d65c78ea5fb1
SHA256acead76f184cebffba987edc439c45edd8a95fa9c63b1ea9203da9d9880e655b
SHA512fc907847406fee6d9a566570bdf0f65937b7a507cfec50f2b69c8e9658325f08392c95a619b3351dc122846ab770c5ed934f63308533774127eb59b6299f4447
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53021dcc3c12058c148b7ee130284e942
SHA15123c9164273f832f5f5a17f8b6ddd68bad0e472
SHA2561feda06c0b5ad82117363a60d51de5ed065fa54255696851b55f563352b9f6c5
SHA512f1ecdb60e0739d83092df004f809fed712506880542161bf4057d71aa3bacfd3af4b8c456f8d139a2bf093cee6c6f248e855eaef5d444509ebc72f84b66d0606
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Filesize
4.1MB
MD54808163c116b40a9c3ab29ad6d656d6f
SHA1c7b767623b94fb1c7001a7ebb253008a7e7a629b
SHA2564b9eae0da17c7a8d0f44c16ea31015b66e0ce48cf1971ea731065939d3f9b823
SHA512bfa6859b665be309ea451aea13255d7eae653f62fee93fc865acd40e02cfba431ff71c4427a79b2e9886960899afe55b373276159881a20d1890802f4b2e5a9b
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec