Analysis
- max time kernel
150s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
17/05/2024, 12:29
Static task
static1
Behavioral task
behavioral1
Sample
b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe
Resource
win10v2004-20240508-en
General
- Target b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe
- Size 4.1MB
- Sample240517-ppc22shd98
- SHA256 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157
- MD5 bbab1a3a4dc994a45b7eca2e9e76d0a6
- SHA1 58c28a4329081d20a3cf049c2226234f9f67ab59
- SHA512 94edd11d9cedf63eef04aebf8389e9a3fd00cb64e8430750d2726ca236c32682517c60f2e623e92ee88e024bb9e370f4a0b9125fb09afc253981ade81499f34f
- SSDEEP 98304:8d7tSzSG1TEQyj2soCVZzfOSLUhtCaFAX/iUIATxmmpvA2aCdQuFREnErR:eRMSLQaVNfPUP9FaqUIATxXaCdFFREng
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/960-2-0x0000000004C10000-0x00000000054FB000-memory.dmp family_glupteba behavioral1/memory/960-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/960-4-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/960-58-0x0000000004C10000-0x00000000054FB000-memory.dmp family_glupteba behavioral1/memory/960-56-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/960-70-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3100-69-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3100-112-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3100-141-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3336-142-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3336-200-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3336-203-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3336-206-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3336-218-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3336-222-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3336-226-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3336-230-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3336-234-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3336-238-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba - Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3940 netsh.exe - Executes dropped EXE 4 IoCs
pid Process 3336 csrss.exe 1100 injector.exe 2216 windefender.exe 1548 windefender.exe -
resource yara_rule behavioral1/files/0x00080000000233f9-209.dat upx behavioral1/memory/2216-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1548-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2216-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1548-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1548-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1548-239-0x0000000000400000-0x00000000008DF000-memory.dmp upx - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\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 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.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 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe File created C:\Windows\rss\csrss.exe b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe - Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3972 sc.exe -
pid Process 1860 powershell.exe 4528 powershell.exe 2216 powershell.exe 4912 powershell.exe 2912 powershell.exe 2364 powershell.exe 4700 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 1092 schtasks.exe 5080 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,-391 = "Arab Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-372 = "Jerusalem Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-252 = "Dateline Standard 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" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-261 = "GMT Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1502 = "Turkey Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.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,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.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\@tzres.dll,-672 = "AUS Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates 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\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2571 = "Turks and Caicos Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.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,-82 = "Atlantic 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,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates 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\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time" windefender.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1860 powershell.exe 1860 powershell.exe 960 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 960 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 4528 powershell.exe 4528 powershell.exe 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 2216 powershell.exe 2216 powershell.exe 2912 powershell.exe 2912 powershell.exe 2364 powershell.exe 2364 powershell.exe 4700 powershell.exe 4700 powershell.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 3336 csrss.exe 3336 csrss.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 3336 csrss.exe 3336 csrss.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe 1100 injector.exe - Suspicious use of AdjustPrivilegeToken 11 IoCs
description pid Process Token: SeDebugPrivilege 1860 powershell.exe Token: SeDebugPrivilege 960 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Token: SeImpersonatePrivilege 960 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe Token: SeDebugPrivilege 4528 powershell.exe Token: SeDebugPrivilege 2216 powershell.exe Token: SeDebugPrivilege 2912 powershell.exe Token: SeDebugPrivilege 2364 powershell.exe Token: SeDebugPrivilege 4700 powershell.exe Token: SeSystemEnvironmentPrivilege 3336 csrss.exe Token: SeSecurityPrivilege 3972 sc.exe Token: SeSecurityPrivilege 3972 sc.exe - Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 960 wrote to memory of 1860 960 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 88 PID 960 wrote to memory of 1860 960 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 88 PID 960 wrote to memory of 1860 960 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 88 PID 3100 wrote to memory of 4528 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 93 PID 3100 wrote to memory of 4528 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 93 PID 3100 wrote to memory of 4528 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 93 PID 3100 wrote to memory of 4508 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 96 PID 3100 wrote to memory of 4508 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 96 PID 4508 wrote to memory of 3940 4508 cmd.exe 98 PID 4508 wrote to memory of 3940 4508 cmd.exe 98 PID 3100 wrote to memory of 2216 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 99 PID 3100 wrote to memory of 2216 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 99 PID 3100 wrote to memory of 2216 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 99 PID 3100 wrote to memory of 4912 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 101 PID 3100 wrote to memory of 4912 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 101 PID 3100 wrote to memory of 4912 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 101 PID 3100 wrote to memory of 3336 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 103 PID 3100 wrote to memory of 3336 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 103 PID 3100 wrote to memory of 3336 3100 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe 103 PID 3336 wrote to memory of 2912 3336 csrss.exe 104 PID 3336 wrote to memory of 2912 3336 csrss.exe 104 PID 3336 wrote to memory of 2912 3336 csrss.exe 104 PID 3336 wrote to memory of 2364 3336 csrss.exe 109 PID 3336 wrote to memory of 2364 3336 csrss.exe 109 PID 3336 wrote to memory of 2364 3336 csrss.exe 109 PID 3336 wrote to memory of 4700 3336 csrss.exe 112 PID 3336 wrote to memory of 4700 3336 csrss.exe 112 PID 3336 wrote to memory of 4700 3336 csrss.exe 112 PID 3336 wrote to memory of 1100 3336 csrss.exe 114 PID 3336 wrote to memory of 1100 3336 csrss.exe 114 PID 2216 wrote to memory of 1576 2216 windefender.exe 120 PID 2216 wrote to memory of 1576 2216 windefender.exe 120 PID 2216 wrote to memory of 1576 2216 windefender.exe 120 PID 1576 wrote to memory of 3972 1576 cmd.exe 121 PID 1576 wrote to memory of 3972 1576 cmd.exe 121 PID 1576 wrote to memory of 3972 1576 cmd.exe 121 - 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\b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe"C:\Users\Admin\AppData\Local\Temp\b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:960 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1860
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C:\Users\Admin\AppData\Local\Temp\b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.exe"C:\Users\Admin\AppData\Local\Temp\b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157.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:3100 -
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:4528
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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:4508 -
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:3940
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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:2216
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
PID:4912
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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:3336 -
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:2912
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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:5080
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3332
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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:2364
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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:4700
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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:1100
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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:1092
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2216 -
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:1576 -
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:3972
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1548
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_jdnvh0mi.rvu.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 6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
- MD5 3d086a433708053f9bf9523e1d87a4e8
- SHA1 b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
- SHA512 931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
- MD5 SHA1 SHA512
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 c72af76c069f7013bdc9d6440c5665fbc3ec3ac7e0893fcb99ea14c6222524ee
- MD5 f5defccb553c214bc057a8f5eb6a5b35
- SHA1 d5fb9860cd0c3d0d1e55039df3a19dcd7443fb46
- SHA512 14f225443c1edfcf0754ccf1d0fe9b2674eb992a225eef234b1986bef23b542f8f1a3f09f4ae4ad6b4c040ef73a9ef1abca40a0141192cfec994097872cb4b21
- SSDEEP 384:M8sf+B/RBVJ+RPxTW/ZGo9wiNYFFjffemRwUOocm0tD81Rja4+nFbOuj3luJ3Og:M5fcVEZCFwiN8FjffAt7I1R84ublI
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 4a85ad23f84ada132abae365eb47b74d48cd204b6174fb0beec149b5ba3e874b
- MD5 d371312e98735b337fb3fc4b67e33009
- SHA1 357d266e3b4fd5757d4bd78c3f12c037836bfc97
- SHA512 a331fcaa9f9a08f6dc3821a8d30085d5299b402e0d6f6ecb89e0634990554fb764dce2c5aedf60dcc6470d5eb2f7e3879314da7d36a71d6fb5611d3a14482387
- SSDEEP 384:Ssf+BnRBV7ZerK9aB58DHQ6dm4tYFFjffemxkUOEckAhoaP1RjaY+nFbOuj3lu1V:PfUV78rYM6w4t8FjffEZ3f1R84ublM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 b2836e2639cbf2f969eeeecdc452ce9689ff739d4c684126e5c70f58faae3ebc
- MD5 6d4ba8a12baa62e23a3296c318492fbd
- SHA1 9023c003e732c7f9fbfa6dd12ad751e74132fe44
- SHA512 530cfdc8b8de7fd7713aabb56207998fe8a6c62fb0a9c31c30e01990abffea074b9c493ff0e2a7d9ab9aa444dd528cb91a6c6e8bb430e3f5c29fd126283ce193
- SSDEEP 384:x86+BnRBgajg5Pq29Or6to9oQHJNYFFNpfemRw7/IOocmXtokO1Pr6+nFbOuj3lI:x9UgaEwaOrroQHJN8FNpfA7B2w1D4ubW
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 7bb035edf5b00a43a37a278a170d6a2d84e698b81ba6d372254660b424b77bcd
- MD5 f5df7ff9b0f857dc94335c2ed653e67d
- SHA1 344883fbe21eed70069cdf28dc94f70941d56fe0
- SHA512 5e8ed1d81148cadc49724a50803d6de4bf1a465b2517196eb554e6aef4de4b792a422b40b10b3c011a6a8500185c8c7fba01b04da0e58f9b0d1274ed4bc5fca1
- SSDEEP 384:z6+BB9m+o7H4lx788jKfNQ949o9o2TJK6seYbney8v/ZlwM0BOaEIjaixqZbObTn:mHH4AHfcxo2TJN+nAvEOaEIB4qMd2
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\rss\csrss.exe
- Size 4.1MB
- SHA256 b91f874bde94ea9c5a8cabefc8dfb5c57814cd97016c43cfe244cc00ac9b4157
- MD5 bbab1a3a4dc994a45b7eca2e9e76d0a6
- SHA1 58c28a4329081d20a3cf049c2226234f9f67ab59
- SHA512 94edd11d9cedf63eef04aebf8389e9a3fd00cb64e8430750d2726ca236c32682517c60f2e623e92ee88e024bb9e370f4a0b9125fb09afc253981ade81499f34f
- SSDEEP 98304:8d7tSzSG1TEQyj2soCVZzfOSLUhtCaFAX/iUIATxmmpvA2aCdQuFREnErR:eRMSLQaVNfPUP9FaqUIATxXaCdFFREng
- 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