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Analysis
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max time kernel
150s -
max time network
137s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
15/05/2024, 23:49
Static task
static1
Behavioral task
behavioral1
Sample
656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe
Resource
win10v2004-20240226-en
General
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Target
656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe
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Size
4.1MB
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MD5
15bd44fd02ee654060bf8b95aa0387e3
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SHA1
c2dd2b7a42c08d0760d5e3f8fd3d8b5f6d584ed7
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SHA256
656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f
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SHA512
0dbf55465df79f84e96b07d1f04b39dbf86911719e2a68cd5c7e45965b31d02af80e845e9ea0ffc0c18c934c68f95ea8e9036bb947fb0f68de7c96275ac53523
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SSDEEP
98304:Hsj80k8u7e4te7QNzi5j0edbbHwu+w5lmM0XQnT:Hg9u7eueIzil0SbrHmM0C
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/4252-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4252-2-0x0000000004CE0000-0x00000000055CB000-memory.dmp family_glupteba behavioral2/memory/4252-4-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4252-56-0x0000000004CE0000-0x00000000055CB000-memory.dmp family_glupteba behavioral2/memory/4252-54-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4252-57-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3104-68-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3104-130-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/392-155-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/392-203-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/392-214-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/392-222-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/392-225-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/392-228-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/392-231-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/392-234-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/392-237-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/392-240-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3860 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 392 csrss.exe 2396 injector.exe 1700 windefender.exe 1668 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa1b-212.dat upx behavioral2/memory/1700-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1668-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1700-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1668-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1668-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2994005945-4089876968-1367784197-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-2994005945-4089876968-1367784197-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.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 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe File created C:\Windows\rss\csrss.exe 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2660 sc.exe -
pid Process 3092 powershell.exe 2320 powershell.exe 3464 powershell.exe 2924 powershell.exe 936 powershell.exe 2068 powershell.exe 1984 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 740 schtasks.exe 3964 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-11 = "Azores 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,-2872 = "Magallanes Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3141 = "South Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs 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,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.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\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.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" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-352 = "FLE Standard 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\@tzres.dll,-132 = "US Eastern Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.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\@tzres.dll,-1022 = "Bangladesh Standard Time" windefender.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,-302 = "Romance Standard 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" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.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\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.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,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard 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,-334 = "Jordan Daylight Time" 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2068 powershell.exe 2068 powershell.exe 4252 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 4252 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 1984 powershell.exe 1984 powershell.exe 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 3092 powershell.exe 3092 powershell.exe 2320 powershell.exe 2320 powershell.exe 3464 powershell.exe 3464 powershell.exe 2924 powershell.exe 2924 powershell.exe 936 powershell.exe 936 powershell.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 392 csrss.exe 392 csrss.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 392 csrss.exe 392 csrss.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 392 csrss.exe 392 csrss.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe 2396 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2068 powershell.exe Token: SeDebugPrivilege 4252 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Token: SeImpersonatePrivilege 4252 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe Token: SeDebugPrivilege 1984 powershell.exe Token: SeDebugPrivilege 3092 powershell.exe Token: SeDebugPrivilege 2320 powershell.exe Token: SeDebugPrivilege 3464 powershell.exe Token: SeDebugPrivilege 2924 powershell.exe Token: SeDebugPrivilege 936 powershell.exe Token: SeSystemEnvironmentPrivilege 392 csrss.exe Token: SeSecurityPrivilege 2660 sc.exe Token: SeSecurityPrivilege 2660 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4252 wrote to memory of 2068 4252 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 83 PID 4252 wrote to memory of 2068 4252 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 83 PID 4252 wrote to memory of 2068 4252 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 83 PID 3104 wrote to memory of 1984 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 88 PID 3104 wrote to memory of 1984 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 88 PID 3104 wrote to memory of 1984 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 88 PID 3104 wrote to memory of 892 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 90 PID 3104 wrote to memory of 892 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 90 PID 892 wrote to memory of 3860 892 cmd.exe 92 PID 892 wrote to memory of 3860 892 cmd.exe 92 PID 3104 wrote to memory of 3092 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 93 PID 3104 wrote to memory of 3092 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 93 PID 3104 wrote to memory of 3092 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 93 PID 3104 wrote to memory of 2320 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 95 PID 3104 wrote to memory of 2320 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 95 PID 3104 wrote to memory of 2320 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 95 PID 3104 wrote to memory of 392 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 97 PID 3104 wrote to memory of 392 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 97 PID 3104 wrote to memory of 392 3104 656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe 97 PID 392 wrote to memory of 3464 392 csrss.exe 98 PID 392 wrote to memory of 3464 392 csrss.exe 98 PID 392 wrote to memory of 3464 392 csrss.exe 98 PID 392 wrote to memory of 2924 392 csrss.exe 103 PID 392 wrote to memory of 2924 392 csrss.exe 103 PID 392 wrote to memory of 2924 392 csrss.exe 103 PID 392 wrote to memory of 936 392 csrss.exe 106 PID 392 wrote to memory of 936 392 csrss.exe 106 PID 392 wrote to memory of 936 392 csrss.exe 106 PID 392 wrote to memory of 2396 392 csrss.exe 108 PID 392 wrote to memory of 2396 392 csrss.exe 108 PID 1700 wrote to memory of 940 1700 windefender.exe 114 PID 1700 wrote to memory of 940 1700 windefender.exe 114 PID 1700 wrote to memory of 940 1700 windefender.exe 114 PID 940 wrote to memory of 2660 940 cmd.exe 115 PID 940 wrote to memory of 2660 940 cmd.exe 115 PID 940 wrote to memory of 2660 940 cmd.exe 115 -
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\656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe"C:\Users\Admin\AppData\Local\Temp\656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4252 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2068
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C:\Users\Admin\AppData\Local\Temp\656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.exe"C:\Users\Admin\AppData\Local\Temp\656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f.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:3104 -
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:1984
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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:892 -
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:3860
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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:3092
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2320
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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:392 -
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:3464
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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:740
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4992
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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:2924
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:936
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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:2396
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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:3964
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1700 -
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:940 -
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:2660
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1668
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD597ba3f859088dd4c6ad9bdf6aad3aad1
SHA1f7dc2fa49de181e31e1effcfe1a349abff28611b
SHA256f33fdc094e38acd4efaf9e47d8392bc7532b6f7c800cb6e059261e62d6fbd27e
SHA51289d06e9155474557d20e962d651f71e1b1a271fe1a70a591ce1ead4f14582c18219a1123295febc28380e9166360d08e1673869dd40879387b832497a720ec91
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5beb61e33fe657e3cd7d733fcd1d4aaa9
SHA1c69bbdaf697c9a869500838f3c68d0610eff19ff
SHA25660c0ccda769b9b9da80e048d396d8694ee1c9acc2063ecbcf86175603ae46990
SHA5125bdc310845f701040841d396fd758e3640798d00356bf616452987fd53da870299ff297cf1e959ea985b6cd2b2e54a7e561cafb65aaabe3234d8714e8303405a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD509ecd29cc21439b4a03c6858438c2b04
SHA1468e4c90cdd63cb4eadbc98bb4002619dd48add9
SHA2561e6c9651cb2477186418fd905931d93979511dd3cd3eee8a68f722d37b74f92e
SHA512cd89502002534fa000e05c2b611c8f03c7fb9827666f3a33d3db01f48905e37873f978f7b97ebeff30d98870eec90d7bf39aa08fa9325899c54df7ed3031078c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57afa495ed92329a777e34a8a00f69a29
SHA1b5fe45d76e18dcb50d4a8a8d0b8b0bf2a5a679a7
SHA25621c7336586ed71de0b7c01f7afdeabaaecfdd7752bd4c9bd43a02d6b242ec81b
SHA5122c3acae044bfa5d871d5e5699a57b7662e2766541d4e1a2b5beae18afb4c1581ee4e1fa4224c84d195850a1e78bbeede87aeb4f7e38102c202d1b447eeca0c19
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD555b61d479e3533888899aa0b1b321df8
SHA1cab2cfde1894ad7e39c34d65805dd320007621b1
SHA25690a008483579610daffd660aa1dea60a463a2df746627a8b9177ee4bcfe4664b
SHA512deae372bafa5c22ca519943964795e3c1f3279f091ccf3c68cc8756356fe842c20f1859625881c2753396fe98c37e19e2e2aa57b7908916b438390bc67c6eace
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Filesize
4.1MB
MD515bd44fd02ee654060bf8b95aa0387e3
SHA1c2dd2b7a42c08d0760d5e3f8fd3d8b5f6d584ed7
SHA256656ab86811cef0901ba694e823723a42cfb3e2731e0a71830c7dd4321ac7323f
SHA5120dbf55465df79f84e96b07d1f04b39dbf86911719e2a68cd5c7e45965b31d02af80e845e9ea0ffc0c18c934c68f95ea8e9036bb947fb0f68de7c96275ac53523
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec