Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240419-en - resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system - submitted
19/05/2024, 01:44
Static task
static1
Behavioral task
behavioral1
Sample
67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe
Resource
win10v2004-20240426-en
General
- Target 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe
- Size 4.1MB
- Sample240519-b5636sca2y
- SHA256 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a
- MD5 1102d528bdd3856726aaf053a3e71c5c
- SHA1 0dda70cfa336570ab737eea1f49986b499b796ab
- SHA512 712de3d951c11fe3a05672ea02bf6bd0bc18f79d67c2a0112651db35f71790928106fc7cd7dbb0feeb1ca53e30d6bbce8790eb078a3d15925a4130911c0b8301
- SSDEEP 98304:KQGLdTw13YmTlGi/xMFRAVNS6wnhY59m5e0z8345L:KLpT0YNaxn5wu5s59Y+
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/4784-2-0x0000000004AB0000-0x000000000539B000-memory.dmp family_glupteba behavioral2/memory/4784-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4784-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4784-54-0x0000000004AB0000-0x000000000539B000-memory.dmp family_glupteba behavioral2/memory/4784-51-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/1148-110-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/1148-178-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/1844-179-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/1844-189-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/1844-192-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/1844-195-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/1844-198-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/1844-201-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/1844-204-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/1844-207-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/1844-210-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/1844-213-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/1844-216-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/1844-219-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba - Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1496 netsh.exe - Executes dropped EXE 4 IoCs
pid Process 1844 csrss.exe 3520 injector.exe 1492 windefender.exe 224 windefender.exe -
resource yara_rule behavioral2/files/0x001a00000002ab25-182.dat upx behavioral2/memory/1492-183-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1492-187-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/224-191-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/224-196-0x0000000000400000-0x00000000008DF000-memory.dmp upx - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\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.
- 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 6 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 - 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 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe - Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe File created C:\Windows\rss\csrss.exe 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe - Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 484 sc.exe -
pid Process 3016 powershell.exe 4976 powershell.exe 4616 powershell.exe 772 powershell.exe 5036 powershell.exe 3892 powershell.exe 3796 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 4936 schtasks.exe 4208 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,-2141 = "Transbaikal Daylight Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2751 = "Tomsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-462 = "Afghanistan Standard Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 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,-402 = "Arabic 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,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.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\@tzres.dll,-1832 = "Russia TZ 2 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-401 = "Arabic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2892 = "Sudan Standard 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" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-672 = "AUS Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.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\@tzres.dll,-362 = "GTB Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\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,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 772 powershell.exe 772 powershell.exe 4784 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 4784 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 5036 powershell.exe 5036 powershell.exe 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 3892 powershell.exe 3892 powershell.exe 3796 powershell.exe 3796 powershell.exe 4976 powershell.exe 4976 powershell.exe 4616 powershell.exe 4616 powershell.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 1844 csrss.exe 1844 csrss.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 1844 csrss.exe 1844 csrss.exe 3520 injector.exe 3520 injector.exe 1844 csrss.exe 1844 csrss.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe 3520 injector.exe - Suspicious use of AdjustPrivilegeToken 11 IoCs
description pid Process Token: SeDebugPrivilege 772 powershell.exe Token: SeDebugPrivilege 4784 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Token: SeImpersonatePrivilege 4784 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe Token: SeDebugPrivilege 5036 powershell.exe Token: SeDebugPrivilege 3892 powershell.exe Token: SeDebugPrivilege 3796 powershell.exe Token: SeDebugPrivilege 4976 powershell.exe Token: SeDebugPrivilege 4616 powershell.exe Token: SeSystemEnvironmentPrivilege 1844 csrss.exe Token: SeSecurityPrivilege 484 sc.exe Token: SeSecurityPrivilege 484 sc.exe - Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4784 wrote to memory of 772 4784 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 81 PID 4784 wrote to memory of 772 4784 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 81 PID 4784 wrote to memory of 772 4784 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 81 PID 1148 wrote to memory of 5036 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 86 PID 1148 wrote to memory of 5036 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 86 PID 1148 wrote to memory of 5036 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 86 PID 1148 wrote to memory of 4772 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 88 PID 1148 wrote to memory of 4772 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 88 PID 4772 wrote to memory of 1496 4772 cmd.exe 90 PID 4772 wrote to memory of 1496 4772 cmd.exe 90 PID 1148 wrote to memory of 3892 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 91 PID 1148 wrote to memory of 3892 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 91 PID 1148 wrote to memory of 3892 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 91 PID 1148 wrote to memory of 3796 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 93 PID 1148 wrote to memory of 3796 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 93 PID 1148 wrote to memory of 3796 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 93 PID 1148 wrote to memory of 1844 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 95 PID 1148 wrote to memory of 1844 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 95 PID 1148 wrote to memory of 1844 1148 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe 95 PID 1844 wrote to memory of 3016 1844 csrss.exe 96 PID 1844 wrote to memory of 3016 1844 csrss.exe 96 PID 1844 wrote to memory of 3016 1844 csrss.exe 96 PID 1844 wrote to memory of 4976 1844 csrss.exe 101 PID 1844 wrote to memory of 4976 1844 csrss.exe 101 PID 1844 wrote to memory of 4976 1844 csrss.exe 101 PID 1844 wrote to memory of 4616 1844 csrss.exe 104 PID 1844 wrote to memory of 4616 1844 csrss.exe 104 PID 1844 wrote to memory of 4616 1844 csrss.exe 104 PID 1844 wrote to memory of 3520 1844 csrss.exe 106 PID 1844 wrote to memory of 3520 1844 csrss.exe 106 PID 1492 wrote to memory of 4488 1492 windefender.exe 112 PID 1492 wrote to memory of 4488 1492 windefender.exe 112 PID 1492 wrote to memory of 4488 1492 windefender.exe 112 PID 4488 wrote to memory of 484 4488 cmd.exe 113 PID 4488 wrote to memory of 484 4488 cmd.exe 113 PID 4488 wrote to memory of 484 4488 cmd.exe 113 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe"C:\Users\Admin\AppData\Local\Temp\67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4784 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:772
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C:\Users\Admin\AppData\Local\Temp\67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.exe"C:\Users\Admin\AppData\Local\Temp\67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a.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:1148 -
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:5036
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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:4772 -
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:1496
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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:3892
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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:3796
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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:1844 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
PID:3016
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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:4936
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3144
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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:4976
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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:4616
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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:3520
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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:4208
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1492 -
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:4488 -
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:484
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:224
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
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cgq0kfyk.gvj.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
- Size 281KB
- SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
- MD5 d98e33b66343e7c96158444127a117f6
- SHA1 bb716c5509a2bf345c6c1152f6e3e1452d39d50d
- SHA512 705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
- SSDEEP 3072:qbHszDaOJ8u2HHFIWr6e29kOnK7qFQ8wMii5I7kGvNjzMuszHshoY46bEydJ+dK9:SA3IlIA6e29vngqS8wMmuooh8z+8F
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
- Size 2KB
- SHA256 e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
- MD5 ac4917a885cf6050b1a483e4bc4d2ea5
- SHA1 b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
- SHA512 092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
- MD5 SHA1 SHA512
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 b62904010a192ccdb34de7ccca330ff433f0b58017663693bfd2e1d73f8f3340
- MD5 15e93740def89ea7ab9b0b330cc726bd
- SHA1 3270623c93bcb2ec216ba31957569123340a9d25
- SHA512 097e6c52b69cc44545c2fe3f623ffbb4a2ce13d1bf52b18f45b9e78430472cf0fe380937db343043e644e859ebf37562d0d55115d35857b988a122bbe2f36113
- SSDEEP 384:aTHhtS2zYKwcZTQ3CeHyHtjF13OLNeFqgHb7KzbnY9jhUd8H:AS/IQ31GjF13OLN6qAbezE9lUY
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 2ae36bb8c8fcb0a9dac1abbb19c657dacdc3be0d03c67e2d132f38888d9aa679
- MD5 3ebf865b696c0c76edc9fd9407d18dc7
- SHA1 611560f89c3c1ab0e34356974dd410e81318a21b
- SHA512 5bdc8c39b136e9891ee5ffc81cb192c0c0fdbcb6078b5d67a5b0df151056fdd8b428e55b6805b2735bccbe71666c0ec711efb1c958594c32509364b6819443f0
- SSDEEP 384:iTHhw6SgomImKsYBEfOHnNzjWa134N7jGiZqHbbHzLnY9jhUdlH:V6SrmJKZE2NzjWa134N3GU+bbHz09lUf
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 c77ddaf2165ef20a7b17ae6a9f7ddbac470dd9c152a61498328551d99ee632bb
- MD5 671da83c814c8e59a2a0c4bc6edd9293
- SHA1 b4c78c607287a60fcc26722e4cdeee9b69576044
- SHA512 d358f8bc3de2be04be93dd485df3cb53d1e0e6072f9dab18612b56d8658d3707c6cdbb8b2a0cfc1c2b38ae082570c09e306dd0102e26ed8a71ec6d97d1678966
- SSDEEP 384:zL3HhwmSt+E8X4GFRILMECgvHNHtzjF1IC4NXj7k4bPazenY9jhUdRH:nKmSZ8tRzETDzjF1IC4Nz7zbCzB9lUD
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 4653253b51ca4ca91b65b0a669312e1edac7d9eb447eae0e6e7768f3b24a435b
- MD5 21eb8d3ffbe6b44ddd186fdd79166797
- SHA1 710100aa27e8e6d66069f377df611137fca067f0
- SHA512 6f3d3f777412986f904dcb8b8bb0fcbfa4ffad93f9ad7c8949cfedf8cc204197452ff62b79b9f122f2ca9ffd11e148928d0d48b34f779ba7c75971c6404ab313
- SSDEEP 384:ETHhwSSJYRRqDUIRD9HnnNzjQGII+NXjg2x+bfPHz5RjNudF6:zSSAIgIRDxNzjfII+NzgC+bffz5+dc
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\rss\csrss.exe
- Size 4.1MB
- SHA256 67b595936ebad8eb78d8562951b9b3a32a921d98350a76cb8754c4a08b42dd6a
- MD5 1102d528bdd3856726aaf053a3e71c5c
- SHA1 0dda70cfa336570ab737eea1f49986b499b796ab
- SHA512 712de3d951c11fe3a05672ea02bf6bd0bc18f79d67c2a0112651db35f71790928106fc7cd7dbb0feeb1ca53e30d6bbce8790eb078a3d15925a4130911c0b8301
- SSDEEP 98304:KQGLdTw13YmTlGi/xMFRAVNS6wnhY59m5e0z8345L:KLpT0YNaxn5wu5s59Y+
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\windefender.exe
- Size 2.0MB
- SHA256 166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
- MD5 8e67f58837092385dcf01e8a2b4f5783
- SHA1 012c49cfd8c5d06795a6f67ea2baf2a082cf8625
- SHA512 40d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec
- SSDEEP 49152:y+SUiJeHpNnxG745Mfi39uXrbcI6DOdVgeuaNjwAx1bJljkv6kXjxNh:fdlHA4yiN8cI6SX3hbJCvhx
- MD5 SHA1 SHA512 SSDEEP