Analysis
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max time kernel
150s -
max time network
132s -
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, 19:53
Static task
static1
Behavioral task
behavioral1
Sample
98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe
Resource
win10v2004-20240412-en
General
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Target
98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe
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Size
4.2MB
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MD5
415fb81fc68d3b8991f1e9cc5bba4455
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SHA1
e17f10033b114c0cf0e77750ad79c1382c8b0aa4
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SHA256
98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a
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SHA512
e3103302bc8c9c8c22de19521963c04ebb8c7e355992532687b1711258d02d646a60f7055b4c54034a0024ccca82e23c88f41a915b2529957ea3316d68ef7d05
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SSDEEP
98304:J00QK3N3Jc8wpX9Ml+P+WnP01raAvqFLRTemOJzdkXGl:LpJcNpX++PyaASVpB6kg
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/1896-2-0x0000000004150000-0x0000000004A3B000-memory.dmp family_glupteba behavioral2/memory/1896-3-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2312-53-0x0000000003F60000-0x000000000484B000-memory.dmp family_glupteba behavioral2/memory/2312-56-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1896-55-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2312-145-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3896-246-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3896-250-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3896-255-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3896-257-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3896-259-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3896-261-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3896-263-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3896-265-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3896-267-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3896-269-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3896-271-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3896-273-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3896-275-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4864 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3896 csrss.exe 4420 injector.exe 380 windefender.exe 3484 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa41-249.dat upx behavioral2/memory/380-254-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3484-256-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3484-260-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3484-266-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2718508534-2116753757-2794822388-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Set value (str) \REGISTRY\USER\S-1-5-21-2718508534-2116753757-2794822388-1000\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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
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 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe File created C:\Windows\rss\csrss.exe 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.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 4700 sc.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 1436 1896 WerFault.exe 79 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 848 schtasks.exe 896 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,-792 = "SA Western Standard Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\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\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,-2841 = "Saratov Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-161 = "Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-622 = "Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs 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\26\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.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\26\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.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\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-364 = "Middle East Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2591 = "Tocantins Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs 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\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2772 = "Omsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 988 powershell.exe 988 powershell.exe 1896 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 1896 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 524 powershell.exe 524 powershell.exe 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 3088 powershell.exe 3088 powershell.exe 2200 powershell.exe 2200 powershell.exe 2216 powershell.exe 2216 powershell.exe 3368 powershell.exe 3368 powershell.exe 3124 powershell.exe 3124 powershell.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 3896 csrss.exe 3896 csrss.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 3896 csrss.exe 3896 csrss.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 3896 csrss.exe 3896 csrss.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe 4420 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 988 powershell.exe Token: SeDebugPrivilege 1896 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Token: SeImpersonatePrivilege 1896 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe Token: SeDebugPrivilege 524 powershell.exe Token: SeDebugPrivilege 3088 powershell.exe Token: SeDebugPrivilege 2200 powershell.exe Token: SeDebugPrivilege 2216 powershell.exe Token: SeDebugPrivilege 3368 powershell.exe Token: SeDebugPrivilege 3124 powershell.exe Token: SeSystemEnvironmentPrivilege 3896 csrss.exe Token: SeSecurityPrivilege 4700 sc.exe Token: SeSecurityPrivilege 4700 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1896 wrote to memory of 988 1896 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 81 PID 1896 wrote to memory of 988 1896 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 81 PID 1896 wrote to memory of 988 1896 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 81 PID 2312 wrote to memory of 524 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 89 PID 2312 wrote to memory of 524 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 89 PID 2312 wrote to memory of 524 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 89 PID 2312 wrote to memory of 3268 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 91 PID 2312 wrote to memory of 3268 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 91 PID 3268 wrote to memory of 4864 3268 cmd.exe 93 PID 3268 wrote to memory of 4864 3268 cmd.exe 93 PID 2312 wrote to memory of 3088 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 94 PID 2312 wrote to memory of 3088 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 94 PID 2312 wrote to memory of 3088 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 94 PID 2312 wrote to memory of 2200 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 96 PID 2312 wrote to memory of 2200 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 96 PID 2312 wrote to memory of 2200 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 96 PID 2312 wrote to memory of 3896 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 98 PID 2312 wrote to memory of 3896 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 98 PID 2312 wrote to memory of 3896 2312 98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe 98 PID 3896 wrote to memory of 2216 3896 csrss.exe 99 PID 3896 wrote to memory of 2216 3896 csrss.exe 99 PID 3896 wrote to memory of 2216 3896 csrss.exe 99 PID 3896 wrote to memory of 3368 3896 csrss.exe 104 PID 3896 wrote to memory of 3368 3896 csrss.exe 104 PID 3896 wrote to memory of 3368 3896 csrss.exe 104 PID 3896 wrote to memory of 3124 3896 csrss.exe 107 PID 3896 wrote to memory of 3124 3896 csrss.exe 107 PID 3896 wrote to memory of 3124 3896 csrss.exe 107 PID 3896 wrote to memory of 4420 3896 csrss.exe 109 PID 3896 wrote to memory of 4420 3896 csrss.exe 109 PID 380 wrote to memory of 1108 380 windefender.exe 118 PID 380 wrote to memory of 1108 380 windefender.exe 118 PID 380 wrote to memory of 1108 380 windefender.exe 118 PID 1108 wrote to memory of 4700 1108 cmd.exe 119 PID 1108 wrote to memory of 4700 1108 cmd.exe 119 PID 1108 wrote to memory of 4700 1108 cmd.exe 119 -
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\98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe"C:\Users\Admin\AppData\Local\Temp\98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1896 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:988
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C:\Users\Admin\AppData\Local\Temp\98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.exe"C:\Users\Admin\AppData\Local\Temp\98d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a.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:2312 -
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:524
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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:3268 -
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:4864
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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:3088
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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:2200
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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:3896 -
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:2216
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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:848
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1056
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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:3368
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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:3124
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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:4420
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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:896
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:380 -
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:1108 -
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:4700
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1896 -s 7202⤵
- Program crash
PID:1436
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1896 -ip 18961⤵PID:4700
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3484
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
MD5bd072ce349f6ab9152583cfb4ffe9cb5
SHA1ea0fa6eea84775e15a7ec9c9d4e81446ebcef696
SHA25679b1da8544e7c02d50b802e69b052bebb74f757ab2f01d4001cd1c7110de8ccc
SHA512168ddd42d444d92077841417d320f9be2f313e559e4a4b9883152a831e96f868a9af67a70c7a6ed5c4288fd00fbd2a62d8a5e31ff9b21ba92d928d710e95ba1f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57b80e6a70e8e3e31a121aee033a351e3
SHA1a981e4b93e94e95831382b2ea4dbc4364f51d3ea
SHA256800f2e46a3b0a90f5dfac20dd6e00a46564a9fe186cb2f21a34c5578a3ef8ae4
SHA512961f3f76fa5ee802fdace39cbeecbe0c9e5b150768114c5675bbfee741344528ce6e672e7f0e2f271e9c1b772829aa703ae0774a3a0dc4b3898dda31fcd1ef18
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55e696e7afd6a23e263975c8ec3ad9300
SHA13a846dcbd9020e69efbc0834989c2929a20a8d9e
SHA25648407be7a1ec0139a8d9da4c3f9dddd9f09ddc942f7f6ee7774cc8b68044ebfb
SHA5121cc7dbe80620337e42c0066fba56e3e479224c831f817e64689684e95d1385b04ddcfa7db278bb27380902dea5177452b7469ef6738b7aa488699b73921b45ea
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD546269523be19ad4d69f838030c574d51
SHA160ae5f94e46246107977e07176b9d85b04f3f40b
SHA256cc21220ecf71baa0ab42808e0e709c56a6274075de9d497aec856713ee7bb06d
SHA512c533882c654442dd4393f92c86a17cacf83e83d448c9b5942f879475432a04ec8311c9c279b717e62045c1fea17bbdd4fa1ffaf73f0b330e37da08abcc4f63ed
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fa9f2e0b1b4bfde999a26677d0ecdf17
SHA1483d96d289f8b2168ebe78c26e01779282258fa3
SHA256f4fe7130e23be132792d8c7f1b075f29453fdabf3cc9d0697edb8d37ea5f9387
SHA5121ea8ae8258112199dcebd2265006194b45fb254cad062b56479b1b55414d410397be3e30f0e0ecddc531f972b062137cdf8e7aee77c4c768fa37f571d771119f
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Filesize
4.2MB
MD5415fb81fc68d3b8991f1e9cc5bba4455
SHA1e17f10033b114c0cf0e77750ad79c1382c8b0aa4
SHA25698d34dba0ceaa1c2b49eeab0f748708ec9d4d1decc7cc6ef7e6c46659bbe408a
SHA512e3103302bc8c9c8c22de19521963c04ebb8c7e355992532687b1711258d02d646a60f7055b4c54034a0024ccca82e23c88f41a915b2529957ea3316d68ef7d05
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec