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Analysis
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max time kernel
149s -
max time network
145s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
07/05/2024, 04:15
Static task
static1
Behavioral task
behavioral1
Sample
40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe
Resource
win10v2004-20240426-en
General
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Target
40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe
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Size
4.1MB
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MD5
2b5ebe2c654b534812462d416831b0cd
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SHA1
153672402642805ae0081cf944068ab03fde46cd
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SHA256
40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e
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SHA512
8420ef1354f21418b7a4f38346e7e93a3d5e7945ea12303cb365344d009491b6b492b44f88af0d4bbf069722969ebb1f2424db63e7ec9ee2b78c254648a876d3
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SSDEEP
98304:SrDlcvc0AgrdwjUm4poaNWZGZrqhzHju3u:MZJ0AWS4K0WZ+G5j2u
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/1288-2-0x0000000003F70000-0x000000000485B000-memory.dmp family_glupteba behavioral2/memory/1288-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1288-124-0x0000000000400000-0x0000000001DE7000-memory.dmp family_glupteba behavioral2/memory/1288-169-0x0000000003F70000-0x000000000485B000-memory.dmp family_glupteba behavioral2/memory/1288-195-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1784-194-0x0000000000400000-0x0000000001DE7000-memory.dmp family_glupteba behavioral2/memory/2280-202-0x0000000000400000-0x0000000001DE7000-memory.dmp family_glupteba behavioral2/memory/2280-214-0x0000000000400000-0x0000000001DE7000-memory.dmp family_glupteba behavioral2/memory/2280-218-0x0000000000400000-0x0000000001DE7000-memory.dmp family_glupteba behavioral2/memory/2280-222-0x0000000000400000-0x0000000001DE7000-memory.dmp family_glupteba behavioral2/memory/2280-226-0x0000000000400000-0x0000000001DE7000-memory.dmp family_glupteba behavioral2/memory/2280-230-0x0000000000400000-0x0000000001DE7000-memory.dmp family_glupteba behavioral2/memory/2280-234-0x0000000000400000-0x0000000001DE7000-memory.dmp family_glupteba behavioral2/memory/2280-238-0x0000000000400000-0x0000000001DE7000-memory.dmp family_glupteba behavioral2/memory/2280-242-0x0000000000400000-0x0000000001DE7000-memory.dmp family_glupteba behavioral2/memory/2280-246-0x0000000000400000-0x0000000001DE7000-memory.dmp family_glupteba behavioral2/memory/2280-250-0x0000000000400000-0x0000000001DE7000-memory.dmp family_glupteba behavioral2/memory/2280-254-0x0000000000400000-0x0000000001DE7000-memory.dmp family_glupteba behavioral2/memory/2280-258-0x0000000000400000-0x0000000001DE7000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3572 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2280 csrss.exe 456 injector.exe 3940 windefender.exe 1456 windefender.exe -
resource yara_rule behavioral2/memory/3940-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/files/0x000200000002a9f2-207.dat upx behavioral2/memory/3940-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1456-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1456-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1456-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.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 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe File created C:\Windows\rss\csrss.exe 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.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 2008 sc.exe -
pid Process 1552 powershell.exe 4892 powershell.exe 5092 powershell.exe 4944 powershell.exe 1828 powershell.exe 4552 powershell.exe 3736 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 944 schtasks.exe 2148 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\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\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\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.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,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-632 = "Tokyo Standard 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" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs 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,-351 = "FLE Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.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" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.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,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.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,-391 = "Arab Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-441 = "Arabian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.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" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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,-911 = "Mauritius Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3736 powershell.exe 3736 powershell.exe 1288 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 1288 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 1552 powershell.exe 1552 powershell.exe 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 4892 powershell.exe 4892 powershell.exe 5092 powershell.exe 5092 powershell.exe 4944 powershell.exe 4944 powershell.exe 1828 powershell.exe 1828 powershell.exe 4552 powershell.exe 4552 powershell.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 2280 csrss.exe 2280 csrss.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 2280 csrss.exe 2280 csrss.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 2280 csrss.exe 2280 csrss.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe 456 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3736 powershell.exe Token: SeDebugPrivilege 1288 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Token: SeImpersonatePrivilege 1288 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe Token: SeDebugPrivilege 1552 powershell.exe Token: SeDebugPrivilege 4892 powershell.exe Token: SeDebugPrivilege 5092 powershell.exe Token: SeDebugPrivilege 4944 powershell.exe Token: SeDebugPrivilege 1828 powershell.exe Token: SeDebugPrivilege 4552 powershell.exe Token: SeSystemEnvironmentPrivilege 2280 csrss.exe Token: SeSecurityPrivilege 2008 sc.exe Token: SeSecurityPrivilege 2008 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1288 wrote to memory of 3736 1288 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 81 PID 1288 wrote to memory of 3736 1288 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 81 PID 1288 wrote to memory of 3736 1288 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 81 PID 1784 wrote to memory of 1552 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 87 PID 1784 wrote to memory of 1552 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 87 PID 1784 wrote to memory of 1552 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 87 PID 1784 wrote to memory of 2712 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 89 PID 1784 wrote to memory of 2712 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 89 PID 2712 wrote to memory of 3572 2712 cmd.exe 91 PID 2712 wrote to memory of 3572 2712 cmd.exe 91 PID 1784 wrote to memory of 4892 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 92 PID 1784 wrote to memory of 4892 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 92 PID 1784 wrote to memory of 4892 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 92 PID 1784 wrote to memory of 5092 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 94 PID 1784 wrote to memory of 5092 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 94 PID 1784 wrote to memory of 5092 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 94 PID 1784 wrote to memory of 2280 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 96 PID 1784 wrote to memory of 2280 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 96 PID 1784 wrote to memory of 2280 1784 40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe 96 PID 2280 wrote to memory of 4944 2280 csrss.exe 97 PID 2280 wrote to memory of 4944 2280 csrss.exe 97 PID 2280 wrote to memory of 4944 2280 csrss.exe 97 PID 2280 wrote to memory of 1828 2280 csrss.exe 103 PID 2280 wrote to memory of 1828 2280 csrss.exe 103 PID 2280 wrote to memory of 1828 2280 csrss.exe 103 PID 2280 wrote to memory of 4552 2280 csrss.exe 105 PID 2280 wrote to memory of 4552 2280 csrss.exe 105 PID 2280 wrote to memory of 4552 2280 csrss.exe 105 PID 2280 wrote to memory of 456 2280 csrss.exe 107 PID 2280 wrote to memory of 456 2280 csrss.exe 107 PID 3940 wrote to memory of 4544 3940 windefender.exe 113 PID 3940 wrote to memory of 4544 3940 windefender.exe 113 PID 3940 wrote to memory of 4544 3940 windefender.exe 113 PID 4544 wrote to memory of 2008 4544 cmd.exe 114 PID 4544 wrote to memory of 2008 4544 cmd.exe 114 PID 4544 wrote to memory of 2008 4544 cmd.exe 114 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe"C:\Users\Admin\AppData\Local\Temp\40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1288 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3736
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C:\Users\Admin\AppData\Local\Temp\40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.exe"C:\Users\Admin\AppData\Local\Temp\40f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e.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:1784 -
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:1552
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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:2712 -
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:3572
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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:4892
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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:5092
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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:2280 -
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:4944
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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:944
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2056
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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:1828
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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:4552
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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:456
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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:2148
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3940 -
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:4544 -
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:2008
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1456
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
MD54cb26ab9c289468d9632bcf9d9bf4d03
SHA1e121a4f646b0381824970584f681a3559cc4da25
SHA256b6537c1fa723b8565fab7f3ac5dc7702a24756d1b719af45319f215cdf661b2e
SHA5127fa966aea412b326fd1a56947b3bcd44bfd0ac924a7e0774aa3ba97fa8ad8c4f4804a598a7482632197dd6f60d9d8f11ca8686aa84688db2d9d7b39637e3bd39
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5963124bc2c0de6341f54e14b6c17de3a
SHA190f9beda2806d2798ae8532c20804cf86f01b9fb
SHA256f9a61ff43269eed7abe8d41574a90e925425896e5ae0a254d0c9c00ac793f1d8
SHA5125a3a469708fcc70fd7e32300f5e34b23f88a386c8c9ede33cd0d202d073f91f16447390721abb02f04cc75617f4e142bd4dc2683c7b94f79c777479d705a3b12
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5001984c131ec2512c6b7dbeb246043a1
SHA11a80b71cb982cb2c15cbe6215939ab0ecdb7c3a2
SHA25677edd27f5aeedcdbba2c83707c5684de0cfc0880e1e3044d561637b32962a09b
SHA512ee3e8d59338bb59cca419def681d6170aaae4cda7d6abfb95c4b6613f0630552dc1a18435915a71958de1d4b8860c8b0717599555cf6310815e5ba37665c77e5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53ac2bc7431664ac1dec10e422dde69c4
SHA1e12c50e6a4ad3481a9c13b7853031c8dec80b0e6
SHA256fed1db2f7eb7e7669e977160403b433eb6279abec25d18fe0afd774be3336465
SHA5122815e5793d1cafcb061ca3693e125c1754a9f42037d614b43858824fd445f95f3a6414699e1bb4e1653b008239aa82866ea98403245b0d23b4b446277eb3e80e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5977512ab26896ea38ac2c0f74ae0efbd
SHA1acc20c41b7fbb0c45153222f73904563c6a85cc7
SHA256fdf3daa32d6ce8213fbe9d89d7621db653d162d4e031f547696bc1be919b254d
SHA5121b1b1d87508dab4a47052e3dff9c47e3d73c449bee0d32022274b4e72755b20145547762eb323a04dc39c4e580127e6c1bc42362f6bd473f638301e1b9cb3f5f
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Filesize
4.1MB
MD52b5ebe2c654b534812462d416831b0cd
SHA1153672402642805ae0081cf944068ab03fde46cd
SHA25640f893e942d3ba455699a904b46886a9ab15aa38381ad0180b05557d8eca803e
SHA5128420ef1354f21418b7a4f38346e7e93a3d5e7945ea12303cb365344d009491b6b492b44f88af0d4bbf069722969ebb1f2424db63e7ec9ee2b78c254648a876d3
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec