Analysis
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max time kernel
149s -
max time network
131s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
19/04/2024, 20:10
Static task
static1
Behavioral task
behavioral1
Sample
52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe
Resource
win10v2004-20240412-en
General
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Target
52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe
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Size
4.2MB
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MD5
d809dd868159a87d2ca8c45960ca9c2d
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SHA1
23f225b65d87f8fd30dcd4daec1a6ee8b54693b4
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SHA256
52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe
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SHA512
fddf88e3d40246c0229e42b77fc484d8c87d6758b543db2108698750899c15cb81308d0b7ce6c4ed949116ef293e77d071ce1e095a8dc36944534665ac6613dc
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SSDEEP
98304:500QK3N3Jc8wpX9Ml+P+WnP01raAvqFLRTemOJzdkXGD:7pJcNpX++PyaASVpB6kW
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/4932-2-0x0000000004070000-0x000000000495B000-memory.dmp family_glupteba behavioral2/memory/4932-3-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4932-42-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1960-44-0x0000000004000000-0x00000000048EB000-memory.dmp family_glupteba behavioral2/memory/1960-45-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1960-131-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1960-142-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3304-239-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3304-240-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3304-249-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3304-251-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3304-253-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3304-255-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3304-257-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3304-259-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3304-261-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3304-263-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3304-265-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3304-267-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3304-269-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2460 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3304 csrss.exe 636 injector.exe 4608 windefender.exe 3836 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a974-243.dat upx behavioral2/memory/4608-247-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3836-250-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3836-254-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3836-266-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\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 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.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe File created C:\Windows\rss\csrss.exe 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.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 2216 sc.exe -
Program crash 3 IoCs
pid pid_target Process procid_target 1244 4056 WerFault.exe 79 2676 4932 WerFault.exe 77 692 1960 WerFault.exe 86 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1556 schtasks.exe 2864 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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\26\52C64B7E\@tzres.dll,-172 = "Central Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-691 = "Tasmania Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2751 = "Tomsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1802 = "Line Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.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\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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\26\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-302 = "Romance Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4056 powershell.exe 4056 powershell.exe 4932 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 4932 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 2520 powershell.exe 2520 powershell.exe 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 568 powershell.exe 568 powershell.exe 3396 powershell.exe 3396 powershell.exe 1972 powershell.exe 1972 powershell.exe 3268 powershell.exe 3268 powershell.exe 760 powershell.exe 760 powershell.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 3304 csrss.exe 3304 csrss.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 3304 csrss.exe 3304 csrss.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 636 injector.exe 3304 csrss.exe 3304 csrss.exe 636 injector.exe 636 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4056 powershell.exe Token: SeDebugPrivilege 4932 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Token: SeImpersonatePrivilege 4932 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe Token: SeDebugPrivilege 2520 powershell.exe Token: SeDebugPrivilege 568 powershell.exe Token: SeDebugPrivilege 3396 powershell.exe Token: SeDebugPrivilege 1972 powershell.exe Token: SeDebugPrivilege 3268 powershell.exe Token: SeDebugPrivilege 760 powershell.exe Token: SeSystemEnvironmentPrivilege 3304 csrss.exe Token: SeSecurityPrivilege 2216 sc.exe Token: SeSecurityPrivilege 2216 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4932 wrote to memory of 4056 4932 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 79 PID 4932 wrote to memory of 4056 4932 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 79 PID 4932 wrote to memory of 4056 4932 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 79 PID 1960 wrote to memory of 2520 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 89 PID 1960 wrote to memory of 2520 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 89 PID 1960 wrote to memory of 2520 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 89 PID 1960 wrote to memory of 1500 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 91 PID 1960 wrote to memory of 1500 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 91 PID 1500 wrote to memory of 2460 1500 cmd.exe 93 PID 1500 wrote to memory of 2460 1500 cmd.exe 93 PID 1960 wrote to memory of 568 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 94 PID 1960 wrote to memory of 568 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 94 PID 1960 wrote to memory of 568 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 94 PID 1960 wrote to memory of 3396 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 96 PID 1960 wrote to memory of 3396 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 96 PID 1960 wrote to memory of 3396 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 96 PID 1960 wrote to memory of 3304 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 98 PID 1960 wrote to memory of 3304 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 98 PID 1960 wrote to memory of 3304 1960 52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe 98 PID 3304 wrote to memory of 1972 3304 csrss.exe 101 PID 3304 wrote to memory of 1972 3304 csrss.exe 101 PID 3304 wrote to memory of 1972 3304 csrss.exe 101 PID 3304 wrote to memory of 3268 3304 csrss.exe 107 PID 3304 wrote to memory of 3268 3304 csrss.exe 107 PID 3304 wrote to memory of 3268 3304 csrss.exe 107 PID 3304 wrote to memory of 760 3304 csrss.exe 109 PID 3304 wrote to memory of 760 3304 csrss.exe 109 PID 3304 wrote to memory of 760 3304 csrss.exe 109 PID 3304 wrote to memory of 636 3304 csrss.exe 111 PID 3304 wrote to memory of 636 3304 csrss.exe 111 PID 4608 wrote to memory of 5096 4608 windefender.exe 117 PID 4608 wrote to memory of 5096 4608 windefender.exe 117 PID 4608 wrote to memory of 5096 4608 windefender.exe 117 PID 5096 wrote to memory of 2216 5096 cmd.exe 118 PID 5096 wrote to memory of 2216 5096 cmd.exe 118 PID 5096 wrote to memory of 2216 5096 cmd.exe 118 -
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\52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe"C:\Users\Admin\AppData\Local\Temp\52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4932 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4056 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4056 -s 25803⤵
- Program crash
PID:1244
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C:\Users\Admin\AppData\Local\Temp\52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.exe"C:\Users\Admin\AppData\Local\Temp\52bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe.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:1960 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2520
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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:1500 -
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:2460
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:568
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3396
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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:3304 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1972
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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:1556
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2860
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3268
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:760
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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:636
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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:2864
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4608 -
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:5096 -
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:2216
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1960 -s 6283⤵
- Program crash
PID:692
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 9842⤵
- Program crash
PID:2676
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4056 -ip 40561⤵PID:3660
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4932 -ip 49321⤵PID:1412
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 1960 -ip 19601⤵PID:1200
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3836
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD551f96306bd55e0e5daaf343149e36b2f
SHA187c087c81f8d374f1a8fb2344eebc5d8e14526e8
SHA256a9c8f86f7855b5b7aeee18e4903735d31f6089be88ffc4570602ac39e6d70f16
SHA512d3cf76e6a22430429181bf93d89b65d38cc2ea6e65959ed91678a3853d95c817b3914cc05084295189240f619eb058ed4db5376f6b06c13c1ac0aada37032c3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53a9a59df538521a35b5bbaff6ded5da2
SHA13838d6a6bfae916c9263261934e3fe0024693f9e
SHA25682405826b14171f4206c2dfef53744661603c9d2a91baa3f9507f77b5c5c8bfa
SHA512fceaa7be06c92fca0a9bc6743fa2a91afb79b7d0b507920d893b9d97fae1627a798cf49fa88f15a27f0c95160bd473b9a6196c9188d9fe5bd016a4961c5d212c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bc8cceb746f861111a55b0f27f1b665e
SHA1523b02a05471d3cab76e6728df9ff9029b055473
SHA25611a8cf86ad05bb881d1dc5ec3e518d890d66e036a75835371ed01561af2794dc
SHA512d691a81ec5fdf10ec70105100fb3fa65948556f3591ef9ac1ef123cbee02d366421f159aaaa040108cfb0ef2ed90509568b852e738895ab3ab1e3738a4884e17
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5db9321f03938956692e706927a930720
SHA174cb4deacc4e790700aa67921de6e8ddb721f125
SHA256746126738b908b15d9aba3fe6fec8f6156fb36a60498b3dead23a1ab9631ff7b
SHA512c290bdb7b3598fd81b407c04f700911198397f8f6df15642b96c698db3cd337a965d9816660581d949fd3317eb6e1d9c31290277afe9465de02d375004b76c3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54e087e1cedc626813300122595088d29
SHA1ca5437e3fdb765210184c3f2bd6b1236e5a0b600
SHA25630bbc4eb0688d4da401af2115c75e72017cd28b2428cea3b6c13c0574b495821
SHA51241b590a6aaca97370da1b4e422d8350b378006e77f570fe682ca00726f84b967b474dde45ed762f607b0f56445396b6d54a601ee98b2751c430bf81200002691
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Filesize
4.2MB
MD5d809dd868159a87d2ca8c45960ca9c2d
SHA123f225b65d87f8fd30dcd4daec1a6ee8b54693b4
SHA25652bc3b802cfdb6fd6aa22731f69d3262df8fecddfe59593a338b6cf9cf56cafe
SHA512fddf88e3d40246c0229e42b77fc484d8c87d6758b543db2108698750899c15cb81308d0b7ce6c4ed949116ef293e77d071ce1e095a8dc36944534665ac6613dc
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec