Analysis
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max time kernel
150s -
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
19-05-2024 14:04
Static task
static1
Behavioral task
behavioral1
Sample
831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe
Resource
win10v2004-20240426-en
General
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Target
831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe
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Size
4.1MB
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MD5
245441f290f9315d150f6ce2090dd30f
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SHA1
46bdef0eee88dca718b7efe92d9a38bbb6893b65
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SHA256
831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07
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SHA512
2fd750a088c637cca7317a6014fe875a6e66f10e15878195c0b13383038a16a07f8d1b78bfb48122982484f31870f1480ffd967c824610b6fcc74521e38ac040
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SSDEEP
98304:IuOdAWE/bfbxbxBimum48oJjLrUZhWcgWy75MTps2CObMUZCzBS/:IuOpIddBi3V8Ojm7gWylM939Cm
Malware Config
Signatures
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Glupteba payload 17 IoCs
resource yara_rule behavioral2/memory/1548-2-0x00000000049F0000-0x00000000052DB000-memory.dmp family_glupteba behavioral2/memory/1548-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1548-136-0x00000000049F0000-0x00000000052DB000-memory.dmp family_glupteba behavioral2/memory/1548-134-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1548-200-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4220-199-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4332-202-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4332-214-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4332-218-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4332-222-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4332-225-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4332-230-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4332-234-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4332-238-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4332-242-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4332-246-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4332-250-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 5028 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4332 csrss.exe 3560 injector.exe 5028 windefender.exe 1212 windefender.exe -
resource yara_rule behavioral2/memory/5028-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/files/0x000200000002a9dd-206.dat upx behavioral2/memory/5028-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1212-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1212-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1212-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\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 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe File created C:\Windows\rss\csrss.exe 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3456 sc.exe -
pid Process 4688 powershell.exe 4700 powershell.exe 3948 powershell.exe 2488 powershell.exe 4720 powershell.exe 2944 powershell.exe 3836 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 228 schtasks.exe 1356 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,-772 = "Montevideo Standard Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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,-671 = "AUS Eastern Daylight Time" windefender.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,-448 = "Azerbaijan Daylight Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.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" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates 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,-2942 = "Sao Tome Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-82 = "Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1892 = "Russia TZ 3 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4700 powershell.exe 4700 powershell.exe 1548 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 1548 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 3948 powershell.exe 3948 powershell.exe 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 2488 powershell.exe 2488 powershell.exe 4720 powershell.exe 4720 powershell.exe 2944 powershell.exe 2944 powershell.exe 3836 powershell.exe 3836 powershell.exe 4688 powershell.exe 4688 powershell.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 4332 csrss.exe 4332 csrss.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 4332 csrss.exe 4332 csrss.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 4332 csrss.exe 4332 csrss.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe 3560 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4700 powershell.exe Token: SeDebugPrivilege 1548 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Token: SeImpersonatePrivilege 1548 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe Token: SeDebugPrivilege 3948 powershell.exe Token: SeDebugPrivilege 2488 powershell.exe Token: SeDebugPrivilege 4720 powershell.exe Token: SeDebugPrivilege 2944 powershell.exe Token: SeDebugPrivilege 3836 powershell.exe Token: SeDebugPrivilege 4688 powershell.exe Token: SeSystemEnvironmentPrivilege 4332 csrss.exe Token: SeSecurityPrivilege 3456 sc.exe Token: SeSecurityPrivilege 3456 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1548 wrote to memory of 4700 1548 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 82 PID 1548 wrote to memory of 4700 1548 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 82 PID 1548 wrote to memory of 4700 1548 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 82 PID 4220 wrote to memory of 3948 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 88 PID 4220 wrote to memory of 3948 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 88 PID 4220 wrote to memory of 3948 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 88 PID 4220 wrote to memory of 4004 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 90 PID 4220 wrote to memory of 4004 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 90 PID 4004 wrote to memory of 5028 4004 cmd.exe 112 PID 4004 wrote to memory of 5028 4004 cmd.exe 112 PID 4220 wrote to memory of 2488 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 93 PID 4220 wrote to memory of 2488 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 93 PID 4220 wrote to memory of 2488 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 93 PID 4220 wrote to memory of 4720 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 95 PID 4220 wrote to memory of 4720 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 95 PID 4220 wrote to memory of 4720 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 95 PID 4220 wrote to memory of 4332 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 97 PID 4220 wrote to memory of 4332 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 97 PID 4220 wrote to memory of 4332 4220 831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe 97 PID 4332 wrote to memory of 2944 4332 csrss.exe 98 PID 4332 wrote to memory of 2944 4332 csrss.exe 98 PID 4332 wrote to memory of 2944 4332 csrss.exe 98 PID 4332 wrote to memory of 3836 4332 csrss.exe 104 PID 4332 wrote to memory of 3836 4332 csrss.exe 104 PID 4332 wrote to memory of 3836 4332 csrss.exe 104 PID 4332 wrote to memory of 4688 4332 csrss.exe 106 PID 4332 wrote to memory of 4688 4332 csrss.exe 106 PID 4332 wrote to memory of 4688 4332 csrss.exe 106 PID 4332 wrote to memory of 3560 4332 csrss.exe 108 PID 4332 wrote to memory of 3560 4332 csrss.exe 108 PID 5028 wrote to memory of 1808 5028 windefender.exe 114 PID 5028 wrote to memory of 1808 5028 windefender.exe 114 PID 5028 wrote to memory of 1808 5028 windefender.exe 114 PID 1808 wrote to memory of 3456 1808 cmd.exe 115 PID 1808 wrote to memory of 3456 1808 cmd.exe 115 PID 1808 wrote to memory of 3456 1808 cmd.exe 115 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe"C:\Users\Admin\AppData\Local\Temp\831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1548 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4700
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C:\Users\Admin\AppData\Local\Temp\831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.exe"C:\Users\Admin\AppData\Local\Temp\831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07.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:4220 -
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:3948
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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:4004 -
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:5028
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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:2488
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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:4720
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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:4332 -
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:2944
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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:228
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3976
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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:3836
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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:4688
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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:3560
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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:1356
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:5028 -
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:1808 -
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:3456
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1212
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
MD545e4b79d8a97971adcf13e34876684ae
SHA1d90f367c3fe017cc8ed8eea9e0552fdc329c01e1
SHA256928c070624a7f27801b407d99c8b1ac43fa9d76c6e045bf86c9cb202c97efe3c
SHA5120e95d7fe621aa41bcb3806c24dcb61548fa436ab657849512149f1ae744609f5dd8ffd83ce4a82a190a9b9df8996c619f067bcffe73c232f2fa2de84a087c667
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e2a6e2e480a695cd7a6790855448e3f1
SHA12cf0c0c15779c025fb0dedf9bfbb0acc9ef53559
SHA256edaafc4501a5636f3452822c3667bd7febea8b9fdd0f709c8936c07f0502dffa
SHA51280e8f7750279a3ab0599c9cf08f00a98877b5b6cfa8225bdde2df75870661cb2ec68fb30495d3f4de5076677406c60ee513bab16f7e480ac47fe9899e2acc67f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ee45ac421ccc8a30e78a893a0272614b
SHA196fd1be3f063bc066c7309cafd2c95aae94abfcd
SHA2565ca4795384dc1e8f8989646129304632456d8ceb4421653d8c180ba116abcdd5
SHA512c4de65d4577b4d4987a96f75f497ae149c4a28fb8149cc221050f323eca277cfd5399fbc86a5edcb3ce68ae054b9434ad1ee584c29c85b93e59f21d6a90a7d35
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e53df9015fde2c462b61c126905dba90
SHA1bf509cdcf709d06a83297d73994628d9398df6f4
SHA2560f2dc2963a9b42d12740a7eeafb9cc38e8878b61b46bd4b9a6ac2694e095a569
SHA51289af814429877edfabeb724d11ad030b99c73b705f1bddd33d7d01d5bf5baba12a997d208554edceff49ce3b382abac4512883e78b099136324d0a0876f2a3a4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bf79117c2f169a5bb0543eaeb72e8cc3
SHA1c445dd82ea71785f0066d92300f147bf0cf17635
SHA2563de5c1e8332e8a5d5aaf07b03d917f928557536ee81a3dec3a0329fc37116554
SHA512fa727ba1c425e8ac03735ad1aff0f790ad4631703d651af76178859a44a3d6f4dbf793a0c03bd0b396981504f664835f3fff3b06969b6daddcc851df72b1953a
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Filesize
4.1MB
MD5245441f290f9315d150f6ce2090dd30f
SHA146bdef0eee88dca718b7efe92d9a38bbb6893b65
SHA256831336c61a34f8a71530c2aba43253646922ea840c018e83c1e3b6f70d1d7a07
SHA5122fd750a088c637cca7317a6014fe875a6e66f10e15878195c0b13383038a16a07f8d1b78bfb48122982484f31870f1480ffd967c824610b6fcc74521e38ac040
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec