Analysis
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max time kernel
150s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
27/04/2024, 08:32
Static task
static1
Behavioral task
behavioral1
Sample
74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe
Resource
win10v2004-20240419-en
General
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Target
74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe
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Size
4.1MB
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MD5
47a2afd8a01fcefc793e5454ee48081d
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SHA1
b197eecceec80ed8ab4405b84a51d6dc973f52c0
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SHA256
74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a
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SHA512
34397172680fbace67e0a7a68b684eb6380c683c9af619c64afb2c01008e2a7c3e32a67da01e3cd1338be290db476ca59607543c0e29cda3155ba1d107ec8898
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SSDEEP
98304:pBrcvoQ3bpeAYFyI5s2iXAaDVcYvvxcUB482tlsgYA74K:pBQ8JjsJRJcupcUK8wlX7x
Malware Config
Signatures
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Glupteba payload 15 IoCs
resource yara_rule behavioral2/memory/2844-2-0x00000000050D0000-0x00000000059BB000-memory.dmp family_glupteba behavioral2/memory/2844-3-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral2/memory/2844-50-0x00000000050D0000-0x00000000059BB000-memory.dmp family_glupteba behavioral2/memory/2844-49-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral2/memory/2672-74-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral2/memory/2672-124-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral2/memory/4716-152-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral2/memory/4716-205-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral2/memory/4716-206-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral2/memory/4716-207-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral2/memory/4716-208-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral2/memory/4716-209-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral2/memory/4716-210-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral2/memory/4716-211-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba behavioral2/memory/4716-212-0x0000000000400000-0x0000000002EDF000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4828 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 4716 csrss.exe 4268 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-293923083-2364846840-4256557006-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\S-1-5-21-293923083-2364846840-4256557006-1000\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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
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 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe File created C:\Windows\rss\csrss.exe 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2828 schtasks.exe 4828 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,-2491 = "Aus Central W. Daylight Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.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" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.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\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3292 powershell.exe 3292 powershell.exe 2844 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 2844 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 2196 powershell.exe 2196 powershell.exe 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 536 powershell.exe 536 powershell.exe 4992 powershell.exe 4992 powershell.exe 3160 powershell.exe 3160 powershell.exe 2476 powershell.exe 2476 powershell.exe 4624 powershell.exe 4624 powershell.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4716 csrss.exe 4716 csrss.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4716 csrss.exe 4716 csrss.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe 4268 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 3292 powershell.exe Token: SeDebugPrivilege 2844 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Token: SeImpersonatePrivilege 2844 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe Token: SeDebugPrivilege 2196 powershell.exe Token: SeDebugPrivilege 536 powershell.exe Token: SeDebugPrivilege 4992 powershell.exe Token: SeDebugPrivilege 3160 powershell.exe Token: SeDebugPrivilege 2476 powershell.exe Token: SeDebugPrivilege 4624 powershell.exe Token: SeSystemEnvironmentPrivilege 4716 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2844 wrote to memory of 3292 2844 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 82 PID 2844 wrote to memory of 3292 2844 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 82 PID 2844 wrote to memory of 3292 2844 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 82 PID 2672 wrote to memory of 2196 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 87 PID 2672 wrote to memory of 2196 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 87 PID 2672 wrote to memory of 2196 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 87 PID 2672 wrote to memory of 724 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 89 PID 2672 wrote to memory of 724 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 89 PID 724 wrote to memory of 4828 724 cmd.exe 91 PID 724 wrote to memory of 4828 724 cmd.exe 91 PID 2672 wrote to memory of 536 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 92 PID 2672 wrote to memory of 536 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 92 PID 2672 wrote to memory of 536 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 92 PID 2672 wrote to memory of 4992 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 94 PID 2672 wrote to memory of 4992 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 94 PID 2672 wrote to memory of 4992 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 94 PID 2672 wrote to memory of 4716 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 96 PID 2672 wrote to memory of 4716 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 96 PID 2672 wrote to memory of 4716 2672 74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe 96 PID 4716 wrote to memory of 3160 4716 csrss.exe 97 PID 4716 wrote to memory of 3160 4716 csrss.exe 97 PID 4716 wrote to memory of 3160 4716 csrss.exe 97 PID 4716 wrote to memory of 2476 4716 csrss.exe 103 PID 4716 wrote to memory of 2476 4716 csrss.exe 103 PID 4716 wrote to memory of 2476 4716 csrss.exe 103 PID 4716 wrote to memory of 4624 4716 csrss.exe 105 PID 4716 wrote to memory of 4624 4716 csrss.exe 105 PID 4716 wrote to memory of 4624 4716 csrss.exe 105 PID 4716 wrote to memory of 4268 4716 csrss.exe 107 PID 4716 wrote to memory of 4268 4716 csrss.exe 107 -
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\74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe"C:\Users\Admin\AppData\Local\Temp\74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2844 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3292
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C:\Users\Admin\AppData\Local\Temp\74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.exe"C:\Users\Admin\AppData\Local\Temp\74716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a.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:2672 -
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:2196
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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:724 -
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:4828
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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:536
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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:4992
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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.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4716 -
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: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:2828
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2580
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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:2476
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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:4624
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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:4268
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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:4828
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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
MD5bb3243381fee82b9d0a3031ffa56d4bf
SHA1c4b9d9bce24e78847e419448ad051f15709aa12d
SHA256f899c11895763d217cc3d5fd5f715e97fae01b743f3be00d80df1b83e456aede
SHA512f485f375c057004db46d607eab7e13e7a7e111a7fbddc3ba384e2660e3c5edf928c7b92fdfb8b25c40491ac8a761a9fb45ecb89dbc75a648a0e6dd2e6bdee29b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD540bcd8bba813c91abe724089da23459e
SHA1b9fd6979c8b9a37439ce0f42fc973c3bb612f187
SHA256fda7449bb9e80fc00b0703644243da775cc4b7470bb6bdfa261c0eefcd090eaf
SHA512efcff840fc89bd41c46f733edea77ebb56f8f1b8ef79952dc899feccded4e6cc726d1dc76c13e58bbdda5a6619dbeba618bb072c5f5ce77850f1dd31ed1c16bd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD518249bc6924be31669e8e83a692fd001
SHA173eec172b5e6ae31bb5b1a7b317d3a86de25421c
SHA256b4b8f74747350ad9edde6426c7ef975aebcd0f4f04ae23cd5bc6bdb0e9e356a9
SHA512ef0c37782154485517354a461b96717a599ddd0014c77d3638bc31df8f0774caa84f1a9544f91dfc4e98ff62171629e36b80bc7760080e63a7f8bedc5bfde372
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57e9ef8206b0eedff3d1a0359f6106495
SHA1655803346866cffbc93711373e988a0897464642
SHA256d1b173bbc674805a24858f20c69439f415d7258e474478f8c8a9459132c51fe0
SHA5124cab13d0d331636a954e95905ddae1c276f6bc8e5e0c9954a726c7372c0aa823917385a5f20fee8b378a63f07e58bfa7f295b0e0b9424610a28fe1243b58a4f9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f720ec365c7caa299cb94d87417ed231
SHA1656db7300255f06efeae759015f9eacb2ae469fb
SHA256e64fea4c20dcda6f38bf2b06c49831441c18a8fb04a61125c63d47b8b1a07402
SHA51213e6f527947f887df1dd17e67caaa310e9abe7b391d58e56d52000a18187397abb80c0f076dac5084970acda69026d42ce4f94b53aba21ae52e02cc3c8d03156
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Filesize
4.1MB
MD547a2afd8a01fcefc793e5454ee48081d
SHA1b197eecceec80ed8ab4405b84a51d6dc973f52c0
SHA25674716c16f59741280b9b0b795b6bb1b5a14982b205988d9943ba41d3f528bc1a
SHA51234397172680fbace67e0a7a68b684eb6380c683c9af619c64afb2c01008e2a7c3e32a67da01e3cd1338be290db476ca59607543c0e29cda3155ba1d107ec8898