Analysis
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max time kernel
150s -
max time network
140s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
09-05-2024 19:18
Static task
static1
Behavioral task
behavioral1
Sample
e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe
Resource
win10v2004-20240508-en
General
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Target
e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe
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Size
4.1MB
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MD5
dee362007009b1225368f3ee43f5d978
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SHA1
e478b2a57e1a3db831e2e188c1ce417b7d6f197c
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SHA256
e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1
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SHA512
67d8b1d309657225c71253b9188f7bbe43f7976d23e76af2fb997edf37ee1c1683dce85da8740a4bfc435463447dfa17a4d6f539c463cc777a99c6a283785c8e
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SSDEEP
98304:npLl5dh/cY//0ytMliSDJIrO0tWgVy355J08nZmlsCR:pLlNLHtGNcOLFp5JFwlsCR
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/1776-2-0x0000000005030000-0x000000000591B000-memory.dmp family_glupteba behavioral2/memory/1776-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1776-50-0x0000000000400000-0x0000000002EDD000-memory.dmp family_glupteba behavioral2/memory/1776-99-0x0000000005030000-0x000000000591B000-memory.dmp family_glupteba behavioral2/memory/4464-89-0x0000000000400000-0x0000000002EDD000-memory.dmp family_glupteba behavioral2/memory/1776-127-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4464-129-0x0000000000400000-0x0000000002EDD000-memory.dmp family_glupteba behavioral2/memory/2772-173-0x0000000000400000-0x0000000002EDD000-memory.dmp family_glupteba behavioral2/memory/2772-204-0x0000000000400000-0x0000000002EDD000-memory.dmp family_glupteba behavioral2/memory/2772-216-0x0000000000400000-0x0000000002EDD000-memory.dmp family_glupteba behavioral2/memory/2772-220-0x0000000000400000-0x0000000002EDD000-memory.dmp family_glupteba behavioral2/memory/2772-224-0x0000000000400000-0x0000000002EDD000-memory.dmp family_glupteba behavioral2/memory/2772-228-0x0000000000400000-0x0000000002EDD000-memory.dmp family_glupteba behavioral2/memory/2772-232-0x0000000000400000-0x0000000002EDD000-memory.dmp family_glupteba behavioral2/memory/2772-236-0x0000000000400000-0x0000000002EDD000-memory.dmp family_glupteba behavioral2/memory/2772-240-0x0000000000400000-0x0000000002EDD000-memory.dmp family_glupteba behavioral2/memory/2772-244-0x0000000000400000-0x0000000002EDD000-memory.dmp family_glupteba behavioral2/memory/2772-248-0x0000000000400000-0x0000000002EDD000-memory.dmp family_glupteba behavioral2/memory/2772-252-0x0000000000400000-0x0000000002EDD000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2080 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2772 csrss.exe 3428 injector.exe 3752 windefender.exe 1300 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa1f-207.dat upx behavioral2/memory/3752-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1300-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3752-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1300-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1300-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2551177587-3778486488-1329702901-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Set value (str) \REGISTRY\USER\S-1-5-21-2551177587-3778486488-1329702901-1000\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 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe File created C:\Windows\rss\csrss.exe e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.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 2624 sc.exe -
pid Process 4052 powershell.exe 3752 powershell.exe 2000 powershell.exe 2896 powershell.exe 792 powershell.exe 2392 powershell.exe 1288 powershell.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 3884 schtasks.exe 1880 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,-1971 = "Belarus Daylight Time" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-721 = "Central Pacific Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs 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,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.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,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.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\@tzres.dll,-161 = "Central Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-221 = "Alaskan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight 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" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1411 = "Syria Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.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,-241 = "Samoa 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" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1471 = "Magadan Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs 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,-82 = "Atlantic Standard Time" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4052 powershell.exe 4052 powershell.exe 1776 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 1776 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 3752 powershell.exe 3752 powershell.exe 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 2000 powershell.exe 2000 powershell.exe 2896 powershell.exe 2896 powershell.exe 792 powershell.exe 792 powershell.exe 2392 powershell.exe 2392 powershell.exe 1288 powershell.exe 1288 powershell.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 2772 csrss.exe 2772 csrss.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 2772 csrss.exe 2772 csrss.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 2772 csrss.exe 2772 csrss.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe 3428 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4052 powershell.exe Token: SeDebugPrivilege 1776 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Token: SeImpersonatePrivilege 1776 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe Token: SeDebugPrivilege 3752 powershell.exe Token: SeDebugPrivilege 2000 powershell.exe Token: SeDebugPrivilege 2896 powershell.exe Token: SeDebugPrivilege 792 powershell.exe Token: SeDebugPrivilege 2392 powershell.exe Token: SeDebugPrivilege 1288 powershell.exe Token: SeSystemEnvironmentPrivilege 2772 csrss.exe Token: SeSecurityPrivilege 2624 sc.exe Token: SeSecurityPrivilege 2624 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1776 wrote to memory of 4052 1776 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 78 PID 1776 wrote to memory of 4052 1776 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 78 PID 1776 wrote to memory of 4052 1776 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 78 PID 4464 wrote to memory of 3752 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 83 PID 4464 wrote to memory of 3752 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 83 PID 4464 wrote to memory of 3752 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 83 PID 4464 wrote to memory of 684 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 85 PID 4464 wrote to memory of 684 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 85 PID 684 wrote to memory of 2080 684 cmd.exe 87 PID 684 wrote to memory of 2080 684 cmd.exe 87 PID 4464 wrote to memory of 2000 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 88 PID 4464 wrote to memory of 2000 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 88 PID 4464 wrote to memory of 2000 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 88 PID 4464 wrote to memory of 2896 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 90 PID 4464 wrote to memory of 2896 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 90 PID 4464 wrote to memory of 2896 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 90 PID 4464 wrote to memory of 2772 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 92 PID 4464 wrote to memory of 2772 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 92 PID 4464 wrote to memory of 2772 4464 e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe 92 PID 2772 wrote to memory of 792 2772 csrss.exe 93 PID 2772 wrote to memory of 792 2772 csrss.exe 93 PID 2772 wrote to memory of 792 2772 csrss.exe 93 PID 2772 wrote to memory of 2392 2772 csrss.exe 98 PID 2772 wrote to memory of 2392 2772 csrss.exe 98 PID 2772 wrote to memory of 2392 2772 csrss.exe 98 PID 2772 wrote to memory of 1288 2772 csrss.exe 101 PID 2772 wrote to memory of 1288 2772 csrss.exe 101 PID 2772 wrote to memory of 1288 2772 csrss.exe 101 PID 2772 wrote to memory of 3428 2772 csrss.exe 103 PID 2772 wrote to memory of 3428 2772 csrss.exe 103 PID 3752 wrote to memory of 1992 3752 windefender.exe 109 PID 3752 wrote to memory of 1992 3752 windefender.exe 109 PID 3752 wrote to memory of 1992 3752 windefender.exe 109 PID 1992 wrote to memory of 2624 1992 cmd.exe 110 PID 1992 wrote to memory of 2624 1992 cmd.exe 110 PID 1992 wrote to memory of 2624 1992 cmd.exe 110 -
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\e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe"C:\Users\Admin\AppData\Local\Temp\e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1776 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4052
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C:\Users\Admin\AppData\Local\Temp\e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.exe"C:\Users\Admin\AppData\Local\Temp\e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1.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:4464 -
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:3752
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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:684 -
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:2080
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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:2000
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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:2896
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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:2772 -
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:792
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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:3884
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3536
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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:2392
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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:1288
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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:3428
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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:1880
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3752 -
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:1992 -
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:2624
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1300
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
MD5bf9aa174a08388bc7c28ccaa9ed0eb4a
SHA19c73a04ce12d3bcebd11093393dae4db14c0f901
SHA2563cf56d0a08d858b2dd1eabd4cd91b1dc7f7a651ba993663186cfea48d59bc36a
SHA512701cb559d622abf478267912f007d973d5c3989c6d7edb28d5a32063e9b7130a6f691aeda4fcad16aac1e46db241ea0ab1597d959c7d6ced5423ccf40d853276
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f7eda1f85416c778025504e5d0fe0e4d
SHA1639fdb726c10c68dabb18cd5a2438016d26c1167
SHA2560b4caf94a49f63bc771da521f92f2a705eb24e822261a3ca34c17a69d0f26284
SHA51264c4fff12febe5647702887a85126d664fabb6d5e255e9e800a5d202eb1803a22ac091e4be686e550daeeaecb3f36f8113f4fed98fbfe2681f75a697380d4430
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d3b06ab0811ab6e55f556341b0caec72
SHA1dd647e07b2861a100982fab4806a63e6df8efd89
SHA2561fe58640f167fa3d67ae428c2fd1c3910f35b9b33324390f2ff97e17b782023c
SHA512ae9a0442095ad92ebf4d613d3caf26d9ba4624f1c17a57488a94dcf265c7f5f7493c758bdcc53f70dd20f71e6d3dcfa09fe9e47d0e9d40c46991a1fbe565ff51
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52b923a581841b72f8819aeca3de4c26c
SHA195e54cebdb390a0c9f7538a3d2710d0a0a9e8ea8
SHA256565688346950dc2accece75129dee6e924e1fc8d1e323d1c65a74bb9e90155c4
SHA5129057da380c201c5397ca98a9c5173a3a558b55ddb89231e221abf1a8f0373e995eeff79ead31d85f8736520a4ff549db073aade73553ca2fae313796f1c23333
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5497873df6bba8d1f7390d8abd2602b17
SHA19ae4cd1ee1bd3917c0e8e8600c2a753b8b9e0a9d
SHA256b7722f936cf38bdffe5c0fa83b0f7ad46261c3820c53d1887f397b026bbadab2
SHA5124cea03e9108403163dfcc536535c844030ad7a08571dd8f6dda226a4932cb71b509a371e651b04d3f85b06c559fb74256e3050bf95fa61a9d22c90452f018f44
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Filesize
4.1MB
MD5dee362007009b1225368f3ee43f5d978
SHA1e478b2a57e1a3db831e2e188c1ce417b7d6f197c
SHA256e5abf996f36ed6a82e19c80efc9dcf594166577caed14569c14c8dee1ed3c4b1
SHA51267d8b1d309657225c71253b9188f7bbe43f7976d23e76af2fb997edf37ee1c1683dce85da8740a4bfc435463447dfa17a4d6f539c463cc777a99c6a283785c8e
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec