Analysis
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max time kernel
150s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
18-05-2024 15:21
Static task
static1
Behavioral task
behavioral1
Sample
493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe
Resource
win10v2004-20240508-en
General
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Target
493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe
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Size
4.1MB
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MD5
ac233c7c3f8ae883227a86303784b263
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SHA1
5ea4bfbee38f8457bda16b350dd12b47a22dbbf5
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SHA256
493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e
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SHA512
ebc113f38a85d933a6fea5e86043ec1099bb3964169e31656419f6645bf279efa846f96d9bb47a0d20af0b9bd42250ecbba7337069747b444f733d678d1e7162
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SSDEEP
98304:L3/aXnuKq8lIi6YuYM5DOP1Yy/qFVYXqnggvBm2Aw6XSjras4uEiZDLpDRiiTm:L3/aer8lIiPc9ySnggpxAJiIuBVpFiiy
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/3692-2-0x0000000004940000-0x000000000522B000-memory.dmp family_glupteba behavioral2/memory/3692-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3692-73-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/3692-93-0x0000000004940000-0x000000000522B000-memory.dmp family_glupteba behavioral2/memory/1424-114-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/1424-120-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/3692-123-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3880-169-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/3880-185-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/3880-187-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/3880-190-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/3880-193-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/3880-197-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/3880-199-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/3880-202-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/3880-205-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/3880-209-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/3880-211-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/3880-214-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/3880-217-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2504 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3880 csrss.exe 472 injector.exe 3112 windefender.exe 3964 windefender.exe -
resource yara_rule behavioral2/files/0x001b00000002ab25-178.dat upx behavioral2/memory/3112-179-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3964-182-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3112-184-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3964-188-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3964-194-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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 6 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 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 -
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 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe File created C:\Windows\rss\csrss.exe 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3080 sc.exe -
pid Process 3024 powershell.exe 1584 powershell.exe 3904 powershell.exe 2160 powershell.exe 3236 powershell.exe 3604 powershell.exe 3160 powershell.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 3176 3904 WerFault.exe 80 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3944 schtasks.exe 1660 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,-2611 = "Bougainville Daylight Time" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-11 = "Azores Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.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,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates 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,-448 = "Azerbaijan Daylight 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\CA\CTLs 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,-891 = "Morocco Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.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,-272 = "Greenwich Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-334 = "Jordan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.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" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.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\TrustedPeople 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,-201 = "US Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.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" 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs 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,-622 = "Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-741 = "New Zealand Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3904 powershell.exe 3904 powershell.exe 3692 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 3692 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 2160 powershell.exe 2160 powershell.exe 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 3236 powershell.exe 3236 powershell.exe 3604 powershell.exe 3604 powershell.exe 3024 powershell.exe 3024 powershell.exe 1584 powershell.exe 1584 powershell.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 3880 csrss.exe 3880 csrss.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 3880 csrss.exe 3880 csrss.exe 472 injector.exe 472 injector.exe 3880 csrss.exe 3880 csrss.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe 472 injector.exe -
Suspicious use of AdjustPrivilegeToken 11 IoCs
description pid Process Token: SeDebugPrivilege 3904 powershell.exe Token: SeDebugPrivilege 3692 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Token: SeImpersonatePrivilege 3692 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe Token: SeDebugPrivilege 2160 powershell.exe Token: SeDebugPrivilege 3236 powershell.exe Token: SeDebugPrivilege 3604 powershell.exe Token: SeDebugPrivilege 3024 powershell.exe Token: SeDebugPrivilege 1584 powershell.exe Token: SeSystemEnvironmentPrivilege 3880 csrss.exe Token: SeSecurityPrivilege 3080 sc.exe Token: SeSecurityPrivilege 3080 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3692 wrote to memory of 3904 3692 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 80 PID 3692 wrote to memory of 3904 3692 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 80 PID 3692 wrote to memory of 3904 3692 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 80 PID 1424 wrote to memory of 2160 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 89 PID 1424 wrote to memory of 2160 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 89 PID 1424 wrote to memory of 2160 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 89 PID 1424 wrote to memory of 4608 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 91 PID 1424 wrote to memory of 4608 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 91 PID 4608 wrote to memory of 2504 4608 cmd.exe 93 PID 4608 wrote to memory of 2504 4608 cmd.exe 93 PID 1424 wrote to memory of 3236 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 94 PID 1424 wrote to memory of 3236 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 94 PID 1424 wrote to memory of 3236 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 94 PID 1424 wrote to memory of 3604 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 96 PID 1424 wrote to memory of 3604 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 96 PID 1424 wrote to memory of 3604 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 96 PID 1424 wrote to memory of 3880 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 98 PID 1424 wrote to memory of 3880 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 98 PID 1424 wrote to memory of 3880 1424 493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe 98 PID 3880 wrote to memory of 3160 3880 csrss.exe 99 PID 3880 wrote to memory of 3160 3880 csrss.exe 99 PID 3880 wrote to memory of 3160 3880 csrss.exe 99 PID 3880 wrote to memory of 3024 3880 csrss.exe 105 PID 3880 wrote to memory of 3024 3880 csrss.exe 105 PID 3880 wrote to memory of 3024 3880 csrss.exe 105 PID 3880 wrote to memory of 1584 3880 csrss.exe 107 PID 3880 wrote to memory of 1584 3880 csrss.exe 107 PID 3880 wrote to memory of 1584 3880 csrss.exe 107 PID 3880 wrote to memory of 472 3880 csrss.exe 109 PID 3880 wrote to memory of 472 3880 csrss.exe 109 PID 3112 wrote to memory of 2520 3112 windefender.exe 115 PID 3112 wrote to memory of 2520 3112 windefender.exe 115 PID 3112 wrote to memory of 2520 3112 windefender.exe 115 PID 2520 wrote to memory of 3080 2520 cmd.exe 116 PID 2520 wrote to memory of 3080 2520 cmd.exe 116 PID 2520 wrote to memory of 3080 2520 cmd.exe 116 -
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\493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe"C:\Users\Admin\AppData\Local\Temp\493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3692 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3904 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3904 -s 25843⤵
- Program crash
PID:3176
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C:\Users\Admin\AppData\Local\Temp\493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe"C:\Users\Admin\AppData\Local\Temp\493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.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:1424 -
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:2160
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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:4608 -
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:2504
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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:3236
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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:3604
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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:3880 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
PID:3160
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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:1660
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2140
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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:3024
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1584
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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:472
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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:3944
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3112 -
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:2520 -
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:3080
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3904 -ip 39041⤵PID:1008
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3964
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
MD5612ad335eef82714ca5dfa2409163055
SHA115b3ca2dc6bd1a8b527040f3f454917ea7f76814
SHA256dbb0b92c5cebd596388ea368d36ee092161243d00bd99ba844440100dbcc441c
SHA512eae4392b44eb79767335d58c962fa5a74b5c7ee8fe59046bbad937bcf62993c0c227a3d3112f4e4e7767afa62b8f555d11f02d4cbb58db5652ce192f66e69b98
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e158c5a329fcf5a13fa30e5c5a0a4b83
SHA1ed8832cc11642db64d9e344415d5abb95e2736a2
SHA256b13a4660bbb2f188cb6532d665ae06c24101b7864bbac6feb2a9f40d89eed018
SHA51237eb8b417de8170240cc8b760902098c5f2d6f7831164865683fe19d1db734197a93d5b2b61fcff096366dd617fe1ace58136e41259cfe869cee1ee8a7feb98c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5795123c844557458a9a7e672dcd2a7bf
SHA1bf13120228ee5f9a9a1274fb8848ecbc0e4e90d9
SHA25638246d099f3659a89bfdc73ffe78615e0ed7331424a839cf5f12741b6c8d9554
SHA512a29f32fa414e10a5a470563387cfe1f6b89e20009f8fc27b3918f117b00acdb0c2a9db54809997753efd7c2cc83abc65e3036cd4ad55d9e739928e1e0d30fac8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bec11df1cfc40c081cdf87e6e31940c2
SHA12b4ab3d0a69ce15ce2be46a406fad81783ef6354
SHA25685a146b0cac1c368b44308cafe435b23fb351c6f75052ad102a469e5cd9501b0
SHA512c744f5bfeaabcfc9f803dcdd75d9aad528427e74dac55593df86b2a716caa1db6cc78da16282856bbd4e207ae7378c740b6ab81abe10e5655f0cdfbe7dda67e3
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Filesize
4.1MB
MD5ac233c7c3f8ae883227a86303784b263
SHA15ea4bfbee38f8457bda16b350dd12b47a22dbbf5
SHA256493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e
SHA512ebc113f38a85d933a6fea5e86043ec1099bb3964169e31656419f6645bf279efa846f96d9bb47a0d20af0b9bd42250ecbba7337069747b444f733d678d1e7162
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec