Analysis
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max time kernel
150s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
17-05-2024 23:10
Static task
static1
Behavioral task
behavioral1
Sample
b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe
Resource
win10v2004-20240508-en
General
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Target
b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe
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Size
4.1MB
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MD5
7e06ff6ca118afee8888c6a4cd362f07
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SHA1
29ed89d2ce7a61d911b81e1b40e649c2997b149f
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SHA256
b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22
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SHA512
d8843f11472950890abe0f5481168d11a0b6f10a90baeadae67f2c78b5e2e83081b5d63c14ddf929d06e5bec606f2bca5975444010819512bdee857c63074ad8
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SSDEEP
98304:0mJz+EAFuKpzA6GjnwtAd4VH0G8BBOAZM6KCBe84pH:hh+Eouw86GbIivMwMVCB8pH
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/116-2-0x0000000004C30000-0x000000000551B000-memory.dmp family_glupteba behavioral1/memory/116-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/116-62-0x0000000004C30000-0x000000000551B000-memory.dmp family_glupteba behavioral1/memory/116-79-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/116-126-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1116-131-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/696-211-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/696-222-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/696-224-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/696-228-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/696-231-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/696-234-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/696-236-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/696-239-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/696-243-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/696-246-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/696-248-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/696-251-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/696-255-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1764 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 696 csrss.exe 4728 injector.exe 4916 windefender.exe 4156 windefender.exe -
resource yara_rule behavioral1/files/0x000800000002342d-215.dat upx behavioral1/memory/4916-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4156-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4916-221-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4156-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4156-230-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe File created C:\Windows\rss\csrss.exe b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe File created C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2060 sc.exe -
pid Process 2440 powershell.exe 1932 powershell.exe 4452 powershell.exe 4960 powershell.exe 2020 powershell.exe 2228 powershell.exe 3184 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4840 schtasks.exe 1536 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2791 = "Novosibirsk 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,-52 = "Greenland Standard Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2182 = "Astrakhan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs 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,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs 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,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-231 = "Hawaiian Daylight 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" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.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" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-11 = "Azores Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.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,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-751 = "Tonga Daylight 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" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4960 powershell.exe 4960 powershell.exe 116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 2020 powershell.exe 2020 powershell.exe 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 2228 powershell.exe 2228 powershell.exe 3184 powershell.exe 3184 powershell.exe 2440 powershell.exe 2440 powershell.exe 1932 powershell.exe 1932 powershell.exe 4452 powershell.exe 4452 powershell.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 696 csrss.exe 696 csrss.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 696 csrss.exe 696 csrss.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 696 csrss.exe 696 csrss.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe 4728 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4960 powershell.exe Token: SeDebugPrivilege 116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Token: SeImpersonatePrivilege 116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Token: SeDebugPrivilege 2020 powershell.exe Token: SeDebugPrivilege 2228 powershell.exe Token: SeDebugPrivilege 3184 powershell.exe Token: SeDebugPrivilege 2440 powershell.exe Token: SeDebugPrivilege 1932 powershell.exe Token: SeDebugPrivilege 4452 powershell.exe Token: SeSystemEnvironmentPrivilege 696 csrss.exe Token: SeSecurityPrivilege 2060 sc.exe Token: SeSecurityPrivilege 2060 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 116 wrote to memory of 4960 116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 84 PID 116 wrote to memory of 4960 116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 84 PID 116 wrote to memory of 4960 116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 84 PID 1116 wrote to memory of 2020 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 96 PID 1116 wrote to memory of 2020 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 96 PID 1116 wrote to memory of 2020 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 96 PID 1116 wrote to memory of 1908 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 101 PID 1116 wrote to memory of 1908 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 101 PID 1908 wrote to memory of 1764 1908 cmd.exe 103 PID 1908 wrote to memory of 1764 1908 cmd.exe 103 PID 1116 wrote to memory of 2228 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 104 PID 1116 wrote to memory of 2228 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 104 PID 1116 wrote to memory of 2228 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 104 PID 1116 wrote to memory of 3184 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 107 PID 1116 wrote to memory of 3184 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 107 PID 1116 wrote to memory of 3184 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 107 PID 1116 wrote to memory of 696 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 109 PID 1116 wrote to memory of 696 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 109 PID 1116 wrote to memory of 696 1116 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 109 PID 696 wrote to memory of 2440 696 csrss.exe 110 PID 696 wrote to memory of 2440 696 csrss.exe 110 PID 696 wrote to memory of 2440 696 csrss.exe 110 PID 696 wrote to memory of 1932 696 csrss.exe 116 PID 696 wrote to memory of 1932 696 csrss.exe 116 PID 696 wrote to memory of 1932 696 csrss.exe 116 PID 696 wrote to memory of 4452 696 csrss.exe 118 PID 696 wrote to memory of 4452 696 csrss.exe 118 PID 696 wrote to memory of 4452 696 csrss.exe 118 PID 696 wrote to memory of 4728 696 csrss.exe 120 PID 696 wrote to memory of 4728 696 csrss.exe 120 PID 4916 wrote to memory of 4764 4916 windefender.exe 128 PID 4916 wrote to memory of 4764 4916 windefender.exe 128 PID 4916 wrote to memory of 4764 4916 windefender.exe 128 PID 4764 wrote to memory of 2060 4764 cmd.exe 129 PID 4764 wrote to memory of 2060 4764 cmd.exe 129 PID 4764 wrote to memory of 2060 4764 cmd.exe 129 -
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\b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe"C:\Users\Admin\AppData\Local\Temp\b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:116 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4960
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C:\Users\Admin\AppData\Local\Temp\b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe"C:\Users\Admin\AppData\Local\Temp\b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.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:1116 -
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:2020
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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:1908 -
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: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:2228
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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:3184
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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:696 -
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:2440
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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:4840
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3304
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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:1932
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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:4452
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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:4728
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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:1536
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4916 -
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:4764 -
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:2060
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4156
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
MD5389476a541c5b32d2aad63399277d1c2
SHA1598992c1b96d7bd3166db832b904d995546075b7
SHA2563f64371e92b86e40d0a8151224521d3e57b059ff39e024b83f90377fab8fa526
SHA5121d596fcf14d7017998865fabf28d665d82deba9f5245970f9d4735a846abe2663a92107da6dfe418e251d379738f5253b607edf8bf02e22232e35bb052076e01
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD571689b5e2ba5dea54d628a4dfe6953e6
SHA1d50afb0152acf6288b1cccd1fd2e20ab9e4d01ce
SHA2560318be6efc99d24bded0485f343ac93b74440a0562432d31a19eced53f090b2f
SHA512963429ffd02674872ca25257472a3180fe6d34d51d63de598195a2c15105c903378b57c9ee5a2e1a1a5f052f67ca0031b7358adde87a54981ebfe4b38356a610
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5af2a22bb086f7f5370d3f653ce87c66a
SHA11f499aa0d43c65c56e7f58d46e557f5eb0c63225
SHA256bfe5a86dc4645a92c9696166dedacea8d316ea816d86afbbe327acbeb46447ba
SHA512e827a525e324f68302d19d53b109006cd2b41adda2eda5a303a783622c53d32c863d83c545c29f6abe3f9c5ed7c90bf63fb9c6a6bb0db2fe61571714ceb845fc
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59ff833aa9533f740f2d29c6b4047ff29
SHA1a51c9ba2bf32924725ee1b0518604f708a0e7205
SHA25608d6eb9454d01cf37eca639e1fa40f4d296994ed1175510ba7f67747978b3bf6
SHA51214098d7f1dc3d2566b0245ece8aac3b53209f93b57cc200bdbfcb5c66ddf5fa9604f06606f66d93136a0f8d80ef40bdd154e700af8846d0de547abd33631ae0d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b61831b77a8ea6d4f773f8497a90c920
SHA1adce98e4c6d861daed3aed6fc53f15bc8d33a847
SHA256ce4b904ce0ca595d0531b4606807a008ca5e464b77d2e96cbc0decd91bd8f8ee
SHA512cee7c0f931a9bcaf46a99505870b360f4ba223a9b3ce08128d54b128310ebf64c26f844842e83b4ef06345ab2b3a30beeada59d53832d152a54e38717ea488e8
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Filesize
4.1MB
MD57e06ff6ca118afee8888c6a4cd362f07
SHA129ed89d2ce7a61d911b81e1b40e649c2997b149f
SHA256b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22
SHA512d8843f11472950890abe0f5481168d11a0b6f10a90baeadae67f2c78b5e2e83081b5d63c14ddf929d06e5bec606f2bca5975444010819512bdee857c63074ad8
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec