Analysis
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max time kernel
150s -
max time network
130s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 21:16
Static task
static1
Behavioral task
behavioral1
Sample
3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe
Resource
win7-20240221-en
General
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Target
3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe
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Size
4.1MB
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MD5
3c600d96b15616b81003faf9eeb2d9fd
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SHA1
49d41dc0f76caa32a88d322d3d83848744190083
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SHA256
3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520
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SHA512
7e7adb53ff07ce21d3735d5fa7d2467da5e333f6fbfdf97f2529505b510cdf48d8acc084ccb148d80392aa3445e606c3578936c849c161b24b29a64b42771718
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SSDEEP
98304:wuOdAWE/bfbxbxBimum48oJjLrUZhWcgWy75MTps2CObMUZCzBS0:wuOpIddBi3V8Ojm7gWylM939Ct
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/3388-2-0x0000000004860000-0x000000000514B000-memory.dmp family_glupteba behavioral2/memory/3388-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3388-80-0x0000000004860000-0x000000000514B000-memory.dmp family_glupteba behavioral2/memory/3388-79-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/116-135-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3388-171-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4616-208-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4616-216-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4616-228-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4616-230-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4616-233-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4616-236-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4616-240-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4616-242-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4616-245-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4616-248-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4616-252-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4616-254-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4616-257-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 4304 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 4616 csrss.exe 4872 injector.exe 1828 windefender.exe 2620 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x0009000000023404-219.dat upx behavioral2/memory/1828-221-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2620-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1828-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2620-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2620-235-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2620-244-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File 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 -
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:
3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe -
Drops file in Windows directory 4 IoCs
Processes:
csrss.exe3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exedescription ioc Process File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe File created C:\Windows\rss\csrss.exe 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid Process 776 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 2452 powershell.exe 5068 powershell.exe 4388 powershell.exe 3484 powershell.exe 3476 powershell.exe 1764 powershell.exe 3936 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 2508 schtasks.exe 3036 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.exe3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-562 = "SE Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.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,-2771 = "Omsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs 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\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-221 = "Alaskan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-651 = "AUS Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA 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,-842 = "Argentina 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\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-672 = "AUS Eastern Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs 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,-2161 = "Altai Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-51 = "Greenland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.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,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-372 = "Jerusalem Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2571 = "Turks and Caicos Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.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" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exepowershell.exe3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 3484 powershell.exe 3484 powershell.exe 3388 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 3388 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 3476 powershell.exe 3476 powershell.exe 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 1764 powershell.exe 1764 powershell.exe 3936 powershell.exe 3936 powershell.exe 2452 powershell.exe 2452 powershell.exe 5068 powershell.exe 5068 powershell.exe 4388 powershell.exe 4388 powershell.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4616 csrss.exe 4616 csrss.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4616 csrss.exe 4616 csrss.exe 4872 injector.exe 4872 injector.exe 4616 csrss.exe 4616 csrss.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe 4872 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 3484 powershell.exe Token: SeDebugPrivilege 3388 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Token: SeImpersonatePrivilege 3388 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Token: SeDebugPrivilege 3476 powershell.exe Token: SeDebugPrivilege 1764 powershell.exe Token: SeDebugPrivilege 3936 powershell.exe Token: SeDebugPrivilege 2452 powershell.exe Token: SeDebugPrivilege 5068 powershell.exe Token: SeDebugPrivilege 4388 powershell.exe Token: SeSystemEnvironmentPrivilege 4616 csrss.exe Token: SeSecurityPrivilege 776 sc.exe Token: SeSecurityPrivilege 776 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 3388 wrote to memory of 3484 3388 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 83 PID 3388 wrote to memory of 3484 3388 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 83 PID 3388 wrote to memory of 3484 3388 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 83 PID 116 wrote to memory of 3476 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 91 PID 116 wrote to memory of 3476 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 91 PID 116 wrote to memory of 3476 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 91 PID 116 wrote to memory of 2548 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 94 PID 116 wrote to memory of 2548 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 94 PID 2548 wrote to memory of 4304 2548 cmd.exe 97 PID 2548 wrote to memory of 4304 2548 cmd.exe 97 PID 116 wrote to memory of 1764 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 98 PID 116 wrote to memory of 1764 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 98 PID 116 wrote to memory of 1764 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 98 PID 116 wrote to memory of 3936 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 100 PID 116 wrote to memory of 3936 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 100 PID 116 wrote to memory of 3936 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 100 PID 116 wrote to memory of 4616 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 102 PID 116 wrote to memory of 4616 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 102 PID 116 wrote to memory of 4616 116 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 102 PID 4616 wrote to memory of 2452 4616 csrss.exe 103 PID 4616 wrote to memory of 2452 4616 csrss.exe 103 PID 4616 wrote to memory of 2452 4616 csrss.exe 103 PID 4616 wrote to memory of 5068 4616 csrss.exe 108 PID 4616 wrote to memory of 5068 4616 csrss.exe 108 PID 4616 wrote to memory of 5068 4616 csrss.exe 108 PID 4616 wrote to memory of 4388 4616 csrss.exe 111 PID 4616 wrote to memory of 4388 4616 csrss.exe 111 PID 4616 wrote to memory of 4388 4616 csrss.exe 111 PID 4616 wrote to memory of 4872 4616 csrss.exe 114 PID 4616 wrote to memory of 4872 4616 csrss.exe 114 PID 1828 wrote to memory of 3808 1828 windefender.exe 120 PID 1828 wrote to memory of 3808 1828 windefender.exe 120 PID 1828 wrote to memory of 3808 1828 windefender.exe 120 PID 3808 wrote to memory of 776 3808 cmd.exe 121 PID 3808 wrote to memory of 776 3808 cmd.exe 121 PID 3808 wrote to memory of 776 3808 cmd.exe 121 -
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\3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe"C:\Users\Admin\AppData\Local\Temp\3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3388 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3484
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C:\Users\Admin\AppData\Local\Temp\3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe"C:\Users\Admin\AppData\Local\Temp\3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.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:116 -
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:3476
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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:2548 -
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:4304
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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:1764
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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:3936
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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:4616 -
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:2452
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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:3036
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2396
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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:5068
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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:4388
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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:4872
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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:2508
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1828 -
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:3808 -
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:776
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2620
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
MD52d3c32666955aa521abb2a56d5cd9f80
SHA1e7a86eb69e0ccfa3642d63382436c3bd6c1e427a
SHA256e31258eb7e6bd83ad040827ffea6a50d2f261ec65715b243c0c9e4859bb4080e
SHA51222592b8895cdaa214cfe25cb18caf2a1fb3a697ddc246ff58db479ccd36d62e166221231b92e6a479c90a4abe0c98ab2ecef1c3c330331b9aa595bfaeb8913cf
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD574909b7cdd4f54d2aa2b84bd7137bb72
SHA117a6a0c47ee680da08ceb1319f5585905b6f1289
SHA256b562414844dbac6a704019f51790b67c39fa53a0f5e1de38d8b544d05dd46174
SHA512b1053d90097a76dba12f9c3bf417db3a6a4db133df67efe1bba9fbab5f3780d584a7fe3d3cdadd35514ac15ec9b18006a435b9c9aa2e558787426dbf7d0de09d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c86968fbf40a8c023dded9bc325c3fd1
SHA103a9c0d88a8daf3eac63a70204b20058d83419c3
SHA2564696924636bf8e90dad6c01674c24cce806141c73a4cc34214e20d44c365ec11
SHA5126751b302ab510f9c8c06db2b7224dbae267eb8ca1d95ac8261156527a3c59b1eb19a1ab10db37ed7d689c2e218435ea44b5e78c2ea509a0322d0a313aa0da984
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5698dbb79db4b66cba2ca1cc2427e75ab
SHA1a908a1d620d4cbab73b0dc79c604e8fa6f04362d
SHA2560cf3f0395239fbae7f932a5c772b6cd105f20c9eeee62e45fc0f99c9779c711e
SHA5120c2b8f5b58e74c93a8afbb9e7b357a7abbd196d0fdebe48e7bfac67d06460052cdeae62cf76e3a7a1abffaec367d187ab78f49282e375a85e65336048a8f7b26
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a04faffc306423b3107921af0da6fcb4
SHA1754621dd69d4c5ae882f064065d523852352357b
SHA25617e3b31a0d1759cea08e2907ea8322ee9da2e97d0d0e02accffb78a6132d3058
SHA512403f661930a863279e3e53e16d991d8b885273b146a71dc7df691d77f9eb77a4baf9ee6ad940e44b5e7e9b77a63a196c3ccda6a7eb35bec99f81ad462d25f448
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Filesize
4.1MB
MD53c600d96b15616b81003faf9eeb2d9fd
SHA149d41dc0f76caa32a88d322d3d83848744190083
SHA2563b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520
SHA5127e7adb53ff07ce21d3735d5fa7d2467da5e333f6fbfdf97f2529505b510cdf48d8acc084ccb148d80392aa3445e606c3578936c849c161b24b29a64b42771718
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec