Analysis
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max time kernel
150s -
max time network
146s -
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 13:23
Static task
static1
Behavioral task
behavioral1
Sample
c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe
Resource
win10v2004-20240508-en
General
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Target
c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe
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Size
4.1MB
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MD5
5f3d0bee1362c6d0a99faf39ef80c1dd
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SHA1
aa6b423c2293a29d08922f9414e7b6f1eb3e21ff
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SHA256
c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb
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SHA512
fce68dc66174f9872477e5a04aa9dd88fe426ff1298449d8e5e901a035652555f848f7787676a08b06bc2e15758a5eed863fd9a7c708aed5acf3a1b007f835eb
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SSDEEP
98304:sQJMl/iXMhTmfDhNRe9xfYVEx7xkD10HZd3scl3XzHAtmo0FM:nb8hTmbBIxHPR3rn3oKM
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/4948-2-0x0000000004CA0000-0x000000000558B000-memory.dmp family_glupteba behavioral1/memory/4948-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4948-4-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/4948-48-0x0000000004CA0000-0x000000000558B000-memory.dmp family_glupteba behavioral1/memory/4948-49-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4948-46-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/4428-81-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/4428-133-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1756-160-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1756-218-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1756-228-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1756-229-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1756-232-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1756-234-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1756-236-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1756-238-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1756-240-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1756-242-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1756-244-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 4844 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 1756 csrss.exe 5012 injector.exe 224 windefender.exe 4908 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral1/memory/224-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4908-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/224-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4908-230-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4908-233-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Set value (str) \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\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.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process 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 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 -
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.
Processes:
c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe -
Drops file in Windows directory 4 IoCs
Processes:
c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.execsrss.exedescription ioc process File opened for modification C:\Windows\rss c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe File created C:\Windows\rss\csrss.exe c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.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.
Processes:
sc.exepid process 4892 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 3540 powershell.exe 1060 powershell.exe 2304 powershell.exe 1728 powershell.exe 4892 powershell.exe 3068 powershell.exe 2736 powershell.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 900 3540 WerFault.exe powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 4588 schtasks.exe 1056 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exewindefender.exec1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process 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\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.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,-72 = "Newfoundland Standard Time" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-221 = "Alaskan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3052 = "Qyzylorda 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,-1502 = "Turkey Standard Time" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.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,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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,-121 = "SA Pacific 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\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1412 = "Syria 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" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs 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,-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,-42 = "E. South America Standard Time" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight 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,-222 = "Alaskan Standard Time" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-721 = "Central Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2632 = "Norfolk Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exec1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exepowershell.exec1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 3540 powershell.exe 3540 powershell.exe 3540 powershell.exe 4948 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe 4948 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe 1060 powershell.exe 1060 powershell.exe 1060 powershell.exe 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe 2304 powershell.exe 2304 powershell.exe 2304 powershell.exe 1728 powershell.exe 1728 powershell.exe 1728 powershell.exe 4892 powershell.exe 4892 powershell.exe 4892 powershell.exe 3068 powershell.exe 3068 powershell.exe 3068 powershell.exe 2736 powershell.exe 2736 powershell.exe 2736 powershell.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 1756 csrss.exe 1756 csrss.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 1756 csrss.exe 1756 csrss.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 1756 csrss.exe 1756 csrss.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exec1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 3540 powershell.exe Token: SeDebugPrivilege 4948 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Token: SeImpersonatePrivilege 4948 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe Token: SeDebugPrivilege 1060 powershell.exe Token: SeDebugPrivilege 2304 powershell.exe Token: SeDebugPrivilege 1728 powershell.exe Token: SeDebugPrivilege 4892 powershell.exe Token: SeDebugPrivilege 3068 powershell.exe Token: SeDebugPrivilege 2736 powershell.exe Token: SeSystemEnvironmentPrivilege 1756 csrss.exe Token: SeSecurityPrivilege 4892 sc.exe Token: SeSecurityPrivilege 4892 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exec1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4948 wrote to memory of 3540 4948 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe powershell.exe PID 4948 wrote to memory of 3540 4948 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe powershell.exe PID 4948 wrote to memory of 3540 4948 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe powershell.exe PID 4428 wrote to memory of 1060 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe powershell.exe PID 4428 wrote to memory of 1060 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe powershell.exe PID 4428 wrote to memory of 1060 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe powershell.exe PID 4428 wrote to memory of 3680 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe cmd.exe PID 4428 wrote to memory of 3680 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe cmd.exe PID 3680 wrote to memory of 4844 3680 cmd.exe netsh.exe PID 3680 wrote to memory of 4844 3680 cmd.exe netsh.exe PID 4428 wrote to memory of 2304 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe powershell.exe PID 4428 wrote to memory of 2304 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe powershell.exe PID 4428 wrote to memory of 2304 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe powershell.exe PID 4428 wrote to memory of 1728 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe powershell.exe PID 4428 wrote to memory of 1728 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe powershell.exe PID 4428 wrote to memory of 1728 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe powershell.exe PID 4428 wrote to memory of 1756 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe csrss.exe PID 4428 wrote to memory of 1756 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe csrss.exe PID 4428 wrote to memory of 1756 4428 c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe csrss.exe PID 1756 wrote to memory of 4892 1756 csrss.exe powershell.exe PID 1756 wrote to memory of 4892 1756 csrss.exe powershell.exe PID 1756 wrote to memory of 4892 1756 csrss.exe powershell.exe PID 1756 wrote to memory of 3068 1756 csrss.exe powershell.exe PID 1756 wrote to memory of 3068 1756 csrss.exe powershell.exe PID 1756 wrote to memory of 3068 1756 csrss.exe powershell.exe PID 1756 wrote to memory of 2736 1756 csrss.exe powershell.exe PID 1756 wrote to memory of 2736 1756 csrss.exe powershell.exe PID 1756 wrote to memory of 2736 1756 csrss.exe powershell.exe PID 1756 wrote to memory of 5012 1756 csrss.exe injector.exe PID 1756 wrote to memory of 5012 1756 csrss.exe injector.exe PID 224 wrote to memory of 1148 224 windefender.exe cmd.exe PID 224 wrote to memory of 1148 224 windefender.exe cmd.exe PID 224 wrote to memory of 1148 224 windefender.exe cmd.exe PID 1148 wrote to memory of 4892 1148 cmd.exe sc.exe PID 1148 wrote to memory of 4892 1148 cmd.exe sc.exe PID 1148 wrote to memory of 4892 1148 cmd.exe sc.exe -
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\c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe"C:\Users\Admin\AppData\Local\Temp\c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4948 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3540 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3540 -s 25483⤵
- Program crash
PID:900 -
C:\Users\Admin\AppData\Local\Temp\c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.exe"C:\Users\Admin\AppData\Local\Temp\c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb.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:4428 -
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:1060 -
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:3680 -
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:4844 -
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:2304 -
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:1728 -
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:1756 -
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:4892 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4588 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:388
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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:3068 -
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:2736 -
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:5012 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:1056 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:224 -
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:1148 -
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:4892
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4184,i,9746875443948590908,1444894342962555245,262144 --variations-seed-version --mojo-platform-channel-handle=4232 /prefetch:81⤵PID:1884
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3540 -ip 35401⤵PID:1952
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4908
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5da2c2fc941e3c197f49e10e50afe18eb
SHA1c6dec0d6c1fd2e44e1f6276069ae246d54a1cd89
SHA2560388249bca656395dfabd7fefaab1f0b828ccde6e9554a276d0ca1e7a09e0faf
SHA512e0ca4cf8d1d73a70c3a26e6673932a880830288d46744192a72564d5d2d7921b18cac65fe85ea6031b18bc43d8826f0b64ca4889ec632bf53870b9038edc7689
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53919522250d975caef7a328b3bf7cd93
SHA12cca5900ed48faefadea35e98ba2ea5d640addeb
SHA256ad446833b83fc41f451719ea4fc452b8c7972ae4694efa96b966f77ee7943b1a
SHA512ab776a67287807e63e7057b9191f8c721a7e1af3fcdc19432283c86e4fb29131d4837161527b14b83d3f88f0c6bcf52d65580d97c64b3dfcff1ff3e654cd9f18
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58b916617041c9a8a5ec94e555fa4e610
SHA1ede152c86b4b81d6236204ac92db1e9112d80013
SHA256039db64b3a7067322ba9e641747b70587b2a59f6aa957f9d86ca8cb0473783f8
SHA5126b3be3e2c163bfeab91ae3cb260b952a808787fdf202277ad7e0e49450f90330e62837b21cfa006d599e98d13b23d70b4cc1171451b45694deb8530cab980403
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55d61ba8cd57922aae6dcf19609bb1b1a
SHA1a7425dfc5cc6a2c0c9d5b0db986fc0bbe5d290c7
SHA256a7585c9aef1c8254f518990c452a30ebfd2885664548c6b1c8310d53ccc25dec
SHA5126f7cc5a8ae0f2aa606f2fb1d63ef07c2fd2404b3440b43de3b26f56b33e77ddb48390b688339db0b188c0f4fe11dbf6f6875a7ad7601851ccf6c7ed19b966ffd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5462e25903733778a16df25f09e831641
SHA1ddb10a8130be7cafdc259321d6290d42fbee55e7
SHA256ec8719613471c22495b57a5f387862b572ca9a6b7598fb0a6327c5cbbc7c2870
SHA512bdc4addfe801ca61e5be9ad03c7f5219b0585b7e8260593de3ea2e635e6745254fbc3bc118dae2145d3a5b63e54f05d1331377b1cd4a01bb08e24bead85a36e5
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Filesize
4.1MB
MD55f3d0bee1362c6d0a99faf39ef80c1dd
SHA1aa6b423c2293a29d08922f9414e7b6f1eb3e21ff
SHA256c1e2d1b2a3eaedda7957f1b5332c3023f114a99d51fe37f5a384923b92db40bb
SHA512fce68dc66174f9872477e5a04aa9dd88fe426ff1298449d8e5e901a035652555f848f7787676a08b06bc2e15758a5eed863fd9a7c708aed5acf3a1b007f835eb
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec