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Analysis
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max time kernel
149s -
max time network
145s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
07/05/2024, 00:00
Static task
static1
Behavioral task
behavioral1
Sample
855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe
Resource
win10v2004-20240419-en
General
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Target
855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe
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Size
4.2MB
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MD5
fe3ca9dc00fbde5426e984a237d24f85
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SHA1
e97b84051cc370adf813445915359fceb4bb1644
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SHA256
855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546
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SHA512
58b5bb64baf3149bcbe9dd3ffbf39636c76f8cf4c41f73c1f8bc7a0833ff3f8fd52f52c1e4b90c8376e6554f7f84fc7a60015efd9086c9be8bb36c452a592312
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SSDEEP
98304:YaQpezkUMTE1jG98FBE9/5ssyESeegfnf4lyOj6mN9jOyo0hkLNp:YJpe4BEU98Fs/etESKJ46WSV7
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/756-2-0x0000000003F20000-0x000000000480B000-memory.dmp family_glupteba behavioral2/memory/756-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/756-71-0x0000000000400000-0x0000000001DFA000-memory.dmp family_glupteba behavioral2/memory/756-78-0x0000000003F20000-0x000000000480B000-memory.dmp family_glupteba behavioral2/memory/756-127-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4232-126-0x0000000000400000-0x0000000001DFA000-memory.dmp family_glupteba behavioral2/memory/1736-196-0x0000000000400000-0x0000000001DFA000-memory.dmp family_glupteba behavioral2/memory/1736-213-0x0000000000400000-0x0000000001DFA000-memory.dmp family_glupteba behavioral2/memory/1736-216-0x0000000000400000-0x0000000001DFA000-memory.dmp family_glupteba behavioral2/memory/1736-220-0x0000000000400000-0x0000000001DFA000-memory.dmp family_glupteba behavioral2/memory/1736-224-0x0000000000400000-0x0000000001DFA000-memory.dmp family_glupteba behavioral2/memory/1736-230-0x0000000000400000-0x0000000001DFA000-memory.dmp family_glupteba behavioral2/memory/1736-233-0x0000000000400000-0x0000000001DFA000-memory.dmp family_glupteba behavioral2/memory/1736-236-0x0000000000400000-0x0000000001DFA000-memory.dmp family_glupteba behavioral2/memory/1736-240-0x0000000000400000-0x0000000001DFA000-memory.dmp family_glupteba behavioral2/memory/1736-246-0x0000000000400000-0x0000000001DFA000-memory.dmp family_glupteba behavioral2/memory/1736-249-0x0000000000400000-0x0000000001DFA000-memory.dmp family_glupteba behavioral2/memory/1736-252-0x0000000000400000-0x0000000001DFA000-memory.dmp family_glupteba behavioral2/memory/1736-256-0x0000000000400000-0x0000000001DFA000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2664 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1736 csrss.exe 4760 injector.exe 3992 windefender.exe 1252 windefender.exe -
resource yara_rule behavioral2/files/0x001a00000002ab24-205.dat upx behavioral2/memory/3992-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1252-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3992-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1252-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1252-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 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 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe File created C:\Windows\rss\csrss.exe 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.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 960 sc.exe -
pid Process 2044 powershell.exe 2520 powershell.exe 4724 powershell.exe 2548 powershell.exe 1808 powershell.exe 4496 powershell.exe 1704 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 3272 schtasks.exe 1892 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,-491 = "India Daylight Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-442 = "Arabian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2531 = "Chatham Islands 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" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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,-461 = "Afghanistan Daylight Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2872 = "Magallanes Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.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\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-631 = "Tokyo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-682 = "E. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-962 = "Paraguay Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.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\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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\@tzres.dll,-462 = "Afghanistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-251 = "Dateline Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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\2a\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4496 powershell.exe 4496 powershell.exe 756 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 756 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 1704 powershell.exe 1704 powershell.exe 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 2044 powershell.exe 2044 powershell.exe 2520 powershell.exe 2520 powershell.exe 4724 powershell.exe 4724 powershell.exe 2548 powershell.exe 2548 powershell.exe 1808 powershell.exe 1808 powershell.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 1736 csrss.exe 1736 csrss.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 1736 csrss.exe 1736 csrss.exe 4760 injector.exe 4760 injector.exe 1736 csrss.exe 1736 csrss.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe 4760 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4496 powershell.exe Token: SeDebugPrivilege 756 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Token: SeImpersonatePrivilege 756 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe Token: SeDebugPrivilege 1704 powershell.exe Token: SeDebugPrivilege 2044 powershell.exe Token: SeDebugPrivilege 2520 powershell.exe Token: SeDebugPrivilege 4724 powershell.exe Token: SeDebugPrivilege 2548 powershell.exe Token: SeDebugPrivilege 1808 powershell.exe Token: SeSystemEnvironmentPrivilege 1736 csrss.exe Token: SeSecurityPrivilege 960 sc.exe Token: SeSecurityPrivilege 960 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 756 wrote to memory of 4496 756 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 81 PID 756 wrote to memory of 4496 756 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 81 PID 756 wrote to memory of 4496 756 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 81 PID 4232 wrote to memory of 1704 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 86 PID 4232 wrote to memory of 1704 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 86 PID 4232 wrote to memory of 1704 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 86 PID 4232 wrote to memory of 4732 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 88 PID 4232 wrote to memory of 4732 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 88 PID 4732 wrote to memory of 2664 4732 cmd.exe 90 PID 4732 wrote to memory of 2664 4732 cmd.exe 90 PID 4232 wrote to memory of 2044 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 91 PID 4232 wrote to memory of 2044 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 91 PID 4232 wrote to memory of 2044 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 91 PID 4232 wrote to memory of 2520 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 93 PID 4232 wrote to memory of 2520 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 93 PID 4232 wrote to memory of 2520 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 93 PID 4232 wrote to memory of 1736 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 95 PID 4232 wrote to memory of 1736 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 95 PID 4232 wrote to memory of 1736 4232 855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe 95 PID 1736 wrote to memory of 4724 1736 csrss.exe 96 PID 1736 wrote to memory of 4724 1736 csrss.exe 96 PID 1736 wrote to memory of 4724 1736 csrss.exe 96 PID 1736 wrote to memory of 2548 1736 csrss.exe 101 PID 1736 wrote to memory of 2548 1736 csrss.exe 101 PID 1736 wrote to memory of 2548 1736 csrss.exe 101 PID 1736 wrote to memory of 1808 1736 csrss.exe 104 PID 1736 wrote to memory of 1808 1736 csrss.exe 104 PID 1736 wrote to memory of 1808 1736 csrss.exe 104 PID 1736 wrote to memory of 4760 1736 csrss.exe 106 PID 1736 wrote to memory of 4760 1736 csrss.exe 106 PID 3992 wrote to memory of 3556 3992 windefender.exe 112 PID 3992 wrote to memory of 3556 3992 windefender.exe 112 PID 3992 wrote to memory of 3556 3992 windefender.exe 112 PID 3556 wrote to memory of 960 3556 cmd.exe 113 PID 3556 wrote to memory of 960 3556 cmd.exe 113 PID 3556 wrote to memory of 960 3556 cmd.exe 113 -
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\855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe"C:\Users\Admin\AppData\Local\Temp\855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:756 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4496
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C:\Users\Admin\AppData\Local\Temp\855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.exe"C:\Users\Admin\AppData\Local\Temp\855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546.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:4232 -
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:1704
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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:4732 -
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:2664
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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:2044
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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:2520
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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:1736 -
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:4724
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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:1892
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3368
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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:2548
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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:1808
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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:4760
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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:3272
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3992 -
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:3556 -
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:960
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1252
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52c578e3125fb896dfbfcd3fa90d2ae1e
SHA16ba292a47fabd1e6dad4bed591783b5fada754ed
SHA256c1cccfdfb5ca928d8ed53728de26e50d90235d1b640cc45231ad045ec24d9dd3
SHA5124271a7c9fad51795573f53ec898ca15efdad8b6c45664e5aa30300b7d42d96a09a7033ac51c5ad4bee59c0318f135d2e4b8a96f830192162418e74fc6cea198a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b8f4645f845ad0d70098583fe2ec04d7
SHA16add887639bb67e410eb5687e9113b866d3304da
SHA2569b8bf245cb68a02ac4cc76070b87747f141e9c9326ff9314e48690f04b398d7a
SHA51276c287b1e9b8984e28fc22a6eb29b88f5d37ce92b544c0cc00081c69067ab5366e11a90a094f6b0f35472fadb788a5b2a21975d5afe72cc3b56abdd5c49a1944
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD547b4300ef7385819758b55a76ac282ed
SHA1a6bde3c7bc8df69500bbffa74126e07c4296f6fd
SHA25626f60666b55928b50c5c3500526afebe9991b5d140a1052c0f3eec21ba133b23
SHA512716963f223f0ff58ed31f7a16ceb6fb658958a0f75a0df6204afa8a2257e5a982408d3501d9a5dae418c742bcbd59dc110766a54aecb4c67e78aa4714d050a4b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57bd7c2aa31dfd92a5623b7e8396a3f66
SHA117cc62b712efa5ad7a29ef1dc98e3952e95ce9a9
SHA256a4b3a553be66940ff439b813b9180abb206e2f1b44a0285a4ca6d52e3afae0ac
SHA512ca226047da0b0538ec6cd24dbc0f343883c37a612c5b07cfed3f96d8d01a233feaec9b17860598c6211e0f3af041f963a308d5c33a09886d467f3fe3d39a83a3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59635f9931961d5a38c070dd17f3eea46
SHA17cdfb24e29ad8e28778d7bd27644011aa6ecd1c1
SHA2567f2ebb04bc819793b76877b6774c9db14585d9dba54e3a8b16acf860bc1aaefa
SHA5123de04f411dc3294f4549983d85963bfd9efdc2d40ee2a7bfb3bdccae7dbecbafec396759a1b4ede4b9daed2d00e3cf38a904ea4c8df05dd156a697775e42f173
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Filesize
4.2MB
MD5fe3ca9dc00fbde5426e984a237d24f85
SHA1e97b84051cc370adf813445915359fceb4bb1644
SHA256855889dfe236c5154210dd39981f2aea3bfc305dc9534571b61da07eb2cb8546
SHA51258b5bb64baf3149bcbe9dd3ffbf39636c76f8cf4c41f73c1f8bc7a0833ff3f8fd52f52c1e4b90c8376e6554f7f84fc7a60015efd9086c9be8bb36c452a592312
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec