Analysis
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max time kernel
149s -
max time network
153s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 11:36
Static task
static1
Behavioral task
behavioral1
Sample
ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe
Resource
win10v2004-20240426-en
General
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Target
ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe
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Size
4.1MB
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MD5
6b52d6187350f6521bf1235e8134ed46
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SHA1
d5a040422cb9fd3dde33cfb53c0ed68a008932c3
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SHA256
ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b
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SHA512
136b7d91ed3a65ffd76c448c0ea5f90622d154e09426e8b51d8bbbc91cdec34550a843d6110f7a13ad5d035fee6e9aa6b538ce022d1caa9ca79162666d18d8f1
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SSDEEP
98304:Wk/C6baF9NNXYvR+SQPyohxfWe3/GY9pAEj6r:Wn6bazjovoyoHfX3/GYHU
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/2316-2-0x0000000004510000-0x0000000004DFB000-memory.dmp family_glupteba behavioral2/memory/2316-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2316-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2316-54-0x0000000004510000-0x0000000004DFB000-memory.dmp family_glupteba behavioral2/memory/2316-51-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1016-125-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2636-204-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2636-214-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2636-216-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2636-218-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2636-220-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2636-222-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2636-224-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2636-226-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2636-228-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2636-230-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2636-232-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2636-234-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2636-236-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 3932 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 2636 csrss.exe 1916 injector.exe 1932 windefender.exe 1004 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002a9f8-207.dat upx behavioral2/memory/1932-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1004-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1932-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1004-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1004-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\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\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 File created 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:
ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe -
Drops file in Windows directory 4 IoCs
Processes:
ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.execsrss.exedescription ioc Process File created C:\Windows\rss\csrss.exe ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.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 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid Process 4460 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 636 powershell.exe 1380 powershell.exe 1276 powershell.exe 2596 powershell.exe 4204 powershell.exe 4564 powershell.exe 1572 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 4904 schtasks.exe 4996 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exewindefender.exeff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-351 = "FLE Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-152 = "Central America Standard 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,-302 = "Romance Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs 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,-334 = "Jordan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.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,-502 = "Nepal Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.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\2a\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.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,-332 = "E. Europe Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates 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,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2591 = "Tocantins Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates 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\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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\2a\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exepowershell.exeff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 1380 powershell.exe 1380 powershell.exe 2316 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 2316 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 1276 powershell.exe 1276 powershell.exe 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 2596 powershell.exe 2596 powershell.exe 4204 powershell.exe 4204 powershell.exe 4564 powershell.exe 4564 powershell.exe 1572 powershell.exe 1572 powershell.exe 636 powershell.exe 636 powershell.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 2636 csrss.exe 2636 csrss.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 2636 csrss.exe 2636 csrss.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 2636 csrss.exe 2636 csrss.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe 1916 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exeff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 1380 powershell.exe Token: SeDebugPrivilege 2316 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Token: SeImpersonatePrivilege 2316 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Token: SeDebugPrivilege 1276 powershell.exe Token: SeDebugPrivilege 2596 powershell.exe Token: SeDebugPrivilege 4204 powershell.exe Token: SeDebugPrivilege 4564 powershell.exe Token: SeDebugPrivilege 1572 powershell.exe Token: SeDebugPrivilege 636 powershell.exe Token: SeSystemEnvironmentPrivilege 2636 csrss.exe Token: SeSecurityPrivilege 4460 sc.exe Token: SeSecurityPrivilege 4460 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exeff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 2316 wrote to memory of 1380 2316 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 81 PID 2316 wrote to memory of 1380 2316 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 81 PID 2316 wrote to memory of 1380 2316 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 81 PID 1016 wrote to memory of 1276 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 86 PID 1016 wrote to memory of 1276 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 86 PID 1016 wrote to memory of 1276 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 86 PID 1016 wrote to memory of 2904 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 88 PID 1016 wrote to memory of 2904 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 88 PID 2904 wrote to memory of 3932 2904 cmd.exe 90 PID 2904 wrote to memory of 3932 2904 cmd.exe 90 PID 1016 wrote to memory of 2596 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 91 PID 1016 wrote to memory of 2596 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 91 PID 1016 wrote to memory of 2596 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 91 PID 1016 wrote to memory of 4204 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 93 PID 1016 wrote to memory of 4204 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 93 PID 1016 wrote to memory of 4204 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 93 PID 1016 wrote to memory of 2636 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 95 PID 1016 wrote to memory of 2636 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 95 PID 1016 wrote to memory of 2636 1016 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 95 PID 2636 wrote to memory of 4564 2636 csrss.exe 96 PID 2636 wrote to memory of 4564 2636 csrss.exe 96 PID 2636 wrote to memory of 4564 2636 csrss.exe 96 PID 2636 wrote to memory of 1572 2636 csrss.exe 102 PID 2636 wrote to memory of 1572 2636 csrss.exe 102 PID 2636 wrote to memory of 1572 2636 csrss.exe 102 PID 2636 wrote to memory of 636 2636 csrss.exe 104 PID 2636 wrote to memory of 636 2636 csrss.exe 104 PID 2636 wrote to memory of 636 2636 csrss.exe 104 PID 2636 wrote to memory of 1916 2636 csrss.exe 106 PID 2636 wrote to memory of 1916 2636 csrss.exe 106 PID 1932 wrote to memory of 2044 1932 windefender.exe 112 PID 1932 wrote to memory of 2044 1932 windefender.exe 112 PID 1932 wrote to memory of 2044 1932 windefender.exe 112 PID 2044 wrote to memory of 4460 2044 cmd.exe 113 PID 2044 wrote to memory of 4460 2044 cmd.exe 113 PID 2044 wrote to memory of 4460 2044 cmd.exe 113 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe"C:\Users\Admin\AppData\Local\Temp\ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2316 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1380
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C:\Users\Admin\AppData\Local\Temp\ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe"C:\Users\Admin\AppData\Local\Temp\ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.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:1016 -
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:1276
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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:2904 -
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:3932
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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:2596
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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:4204
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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:2636 -
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:4564
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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:4904
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:964
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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:1572
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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:636
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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:1916
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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:4996
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1932 -
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:2044 -
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:4460
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1004
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
MD5ef6fc8d547dd974498f8c3581b099eeb
SHA1d6eb2e4fb221e4e17fad4ac90c00f05ac5137c82
SHA256321b094dcae97dbfcf9a4eb5bf28ff96f4fc3e93d4495176536c347a5c456946
SHA512d6e9dd5f346c9219a336371e512339d4d6ba83032049ffa99a29de1b8bcdf224f9c620a65cdf3a354893cb8d3614438c0c15e143a375680eb22d009e3b93ae17
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b2b3234f02e73eabd4ae3a00c1747fdf
SHA17706e350f945ec24bf6c8703a6ddc8dd9bd8c9a9
SHA256fb627ff581746c527ab99a1411c25ef9ccbf578341b3a52b2651626b983fc6b8
SHA51221117ebd9cc9fb4aed1b9d1835bac7de124226b0dfab866e979cc5e7bb909933ed66698807a199655f6f7938a14b08128b397f84f7dd7110ebd37e6c68f352d6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56344ba43e655be34f0d138dbd4f4acd7
SHA1a44ed9917ccd74b941a7904ca2febad23db1fe99
SHA2569caed2ef26bd4a2da442747b797522c7d0dcba059e09c6fa9c793732e7583eae
SHA512c6245d765e9c76649d5e20a53d7772a357278da86a26e805dbc902c9c81afac5a45856442f90c9b0200512b6149d1ed31083d30c9fe912e5481f57a350acb73d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ec1f877d08458dab95660784d3611db7
SHA164bc5fd79a5f09bbdffd076cf68f6d6f37acecc1
SHA256935aae7140f72f14e02c7eb628edc32543d83058bc62a504aa2610febfc81314
SHA512849b0bb3ac055ed7ba858e967df3d3d7cf6af696b5ba2333c5cb62deb15d9b906ba175e73f9c8b6a0ca87ee2739b053b6d3b9e2ad9bb53b40bdca1879fee1601
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50c3779524c31ab50b3c8af217f0c1901
SHA129d9f8e8419ba4093dc20f7375b277399889ccc5
SHA2566135678f967d30a14c202bc08b697695a829704469490df332fa31877ba531be
SHA512d4aa1831451780b71f6eb92d531c7f2f81eb36a73abe3b4bf0bbc50869fa332f06701f353737eb52c4a1821bef59fa04018c59782f37133758acf38bc3973c10
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Filesize
4.1MB
MD56b52d6187350f6521bf1235e8134ed46
SHA1d5a040422cb9fd3dde33cfb53c0ed68a008932c3
SHA256ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b
SHA512136b7d91ed3a65ffd76c448c0ea5f90622d154e09426e8b51d8bbbc91cdec34550a843d6110f7a13ad5d035fee6e9aa6b538ce022d1caa9ca79162666d18d8f1
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec