Analysis
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max time kernel
150s -
max time network
130s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
18-05-2024 08:24
Static task
static1
Behavioral task
behavioral1
Sample
281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe
Resource
win10v2004-20240508-en
General
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Target
281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe
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Size
4.1MB
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MD5
6eda20e70933326bf41ba9903d8d8933
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SHA1
3888cb5ddf8c004c230192b027eb17fbabcb71cf
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SHA256
281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517
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SHA512
e00ed9d954c00764a3271cf38a5300dffceb0f9b1606223ac2fb43a50eac94be761f42bb03cb7465ff4495d0518a6f00878bc89ba1000c64242795b740ca696e
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SSDEEP
98304:ocO3d23DP4WvcTQUVFyLidGODnX7vlp0fAiBu1UOo5GU75c1WMsxi:ocO3d2wQ4Q8FyLwnXJ+AxvtU75c1js0
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/1736-2-0x0000000004C30000-0x000000000551B000-memory.dmp family_glupteba behavioral2/memory/1736-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1736-77-0x0000000004C30000-0x000000000551B000-memory.dmp family_glupteba behavioral2/memory/1736-75-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4480-123-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/1736-126-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3132-200-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3132-210-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3132-212-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3132-217-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3132-220-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3132-222-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3132-224-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3132-229-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3132-232-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3132-234-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3132-236-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3132-241-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1760 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3132 csrss.exe 848 injector.exe 1444 windefender.exe 4136 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa40-203.dat upx behavioral2/memory/1444-204-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4136-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1444-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4136-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4136-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\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 opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe -
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 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe File created C:\Windows\rss\csrss.exe 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.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 5108 sc.exe -
pid Process 3836 powershell.exe 4808 powershell.exe 5104 powershell.exe 3320 powershell.exe 2980 powershell.exe 3312 powershell.exe 3380 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 4744 schtasks.exe 2144 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,-2532 = "Chatham Islands Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs 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,-1871 = "Russia TZ 7 Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates 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,-142 = "Canada Central Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.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\@tzres.dll,-11 = "Azores Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1971 = "Belarus 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,-82 = "Atlantic Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1502 = "Turkey Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.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,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3836 powershell.exe 3836 powershell.exe 1736 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 1736 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 4808 powershell.exe 4808 powershell.exe 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 5104 powershell.exe 5104 powershell.exe 3320 powershell.exe 3320 powershell.exe 2980 powershell.exe 2980 powershell.exe 3312 powershell.exe 3312 powershell.exe 3380 powershell.exe 3380 powershell.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 3132 csrss.exe 3132 csrss.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 3132 csrss.exe 3132 csrss.exe 848 injector.exe 848 injector.exe 3132 csrss.exe 3132 csrss.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe 848 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3836 powershell.exe Token: SeDebugPrivilege 1736 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Token: SeImpersonatePrivilege 1736 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Token: SeDebugPrivilege 4808 powershell.exe Token: SeDebugPrivilege 5104 powershell.exe Token: SeDebugPrivilege 3320 powershell.exe Token: SeDebugPrivilege 2980 powershell.exe Token: SeDebugPrivilege 3312 powershell.exe Token: SeDebugPrivilege 3380 powershell.exe Token: SeSystemEnvironmentPrivilege 3132 csrss.exe Token: SeSecurityPrivilege 5108 sc.exe Token: SeSecurityPrivilege 5108 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1736 wrote to memory of 3836 1736 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 81 PID 1736 wrote to memory of 3836 1736 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 81 PID 1736 wrote to memory of 3836 1736 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 81 PID 4480 wrote to memory of 4808 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 87 PID 4480 wrote to memory of 4808 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 87 PID 4480 wrote to memory of 4808 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 87 PID 4480 wrote to memory of 2312 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 89 PID 4480 wrote to memory of 2312 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 89 PID 2312 wrote to memory of 1760 2312 cmd.exe 91 PID 2312 wrote to memory of 1760 2312 cmd.exe 91 PID 4480 wrote to memory of 5104 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 92 PID 4480 wrote to memory of 5104 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 92 PID 4480 wrote to memory of 5104 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 92 PID 4480 wrote to memory of 3320 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 94 PID 4480 wrote to memory of 3320 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 94 PID 4480 wrote to memory of 3320 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 94 PID 4480 wrote to memory of 3132 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 96 PID 4480 wrote to memory of 3132 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 96 PID 4480 wrote to memory of 3132 4480 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 96 PID 3132 wrote to memory of 2980 3132 csrss.exe 97 PID 3132 wrote to memory of 2980 3132 csrss.exe 97 PID 3132 wrote to memory of 2980 3132 csrss.exe 97 PID 3132 wrote to memory of 3312 3132 csrss.exe 102 PID 3132 wrote to memory of 3312 3132 csrss.exe 102 PID 3132 wrote to memory of 3312 3132 csrss.exe 102 PID 3132 wrote to memory of 3380 3132 csrss.exe 105 PID 3132 wrote to memory of 3380 3132 csrss.exe 105 PID 3132 wrote to memory of 3380 3132 csrss.exe 105 PID 3132 wrote to memory of 848 3132 csrss.exe 107 PID 3132 wrote to memory of 848 3132 csrss.exe 107 PID 1444 wrote to memory of 3948 1444 windefender.exe 113 PID 1444 wrote to memory of 3948 1444 windefender.exe 113 PID 1444 wrote to memory of 3948 1444 windefender.exe 113 PID 3948 wrote to memory of 5108 3948 cmd.exe 114 PID 3948 wrote to memory of 5108 3948 cmd.exe 114 PID 3948 wrote to memory of 5108 3948 cmd.exe 114 -
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\281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe"C:\Users\Admin\AppData\Local\Temp\281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1736 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3836
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C:\Users\Admin\AppData\Local\Temp\281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe"C:\Users\Admin\AppData\Local\Temp\281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.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:4480 -
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:4808
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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:2312 -
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:1760
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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:5104
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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:3320
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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:3132 -
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:2980
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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:4744
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:344
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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:3312
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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:3380
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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:848
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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:2144
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1444 -
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:3948 -
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:5108
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4136
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
MD555e438af229eb17f567d952a0cfd3f2b
SHA19786ef4dd0930dc0c24e57aefb8d20c1f51265a9
SHA2564e90df53c5d5f6bf37c166d24c36f356c18fccf77e86f3a52777c255d3566e4a
SHA512488cf87ee65ab5dc1177d4b9c6efb36f2a1f61f95b2bdf40d84c117168bd61f33f220dc07c70e4a872d9b7c53e82722a346a02d615ac0ddc5653f55140ad36b4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e76765026768f4937cd6af571b6391bd
SHA140e362e5e0f116c321a4e2c1b4a1e3de6441bc75
SHA25675df350510c3ca00c915a7315920ddd9ccfd2d61cb392d8eebfe9424864473de
SHA512293d4c0045011a2f6c13babbb157ef0f007b5c41239d51703322492d0519ebfbde10ce4a5cdb918490dd3039ec5d05c18a714fd6a2443e9b67d7b1d340af36d0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50014d5d84f4d9280fb000e88cd736ed7
SHA1a4c1eb116ecb9fd595d8897326e28ca3c978ea2e
SHA2561fc4f262af8f62f9ebe840023e46eb8e69e360f7df4f397d1e61ee02b4725574
SHA5129576c6dde2d938069bf6dc44590d852fc38c0f64f109f458eb9130dc15b663c5900a7b333bb5d8f6fd26c1330c1c9a6babc3f53ec110c7b28c7c66ea560fef51
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53396db69e042380b86a0e1822fd04e6d
SHA188a4129ecd176962f871467bd3f2c932d0ee9e05
SHA256b2a06fb7f67f2aa0cbbef7833cf752a09622e37fb334c78a748061f8ae93d976
SHA512b2c548f5aae401499c002f0ac58cacf74b63f9e990ed0ee181f925678c09c1857597371134840066b51768c8181736e42ed67381e66b4e591af48dc685121206
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a647244b86a0718ea12bf8593324bc1e
SHA11b16aba8b988217612904ab4197873c9935a36f8
SHA2564f00bf1fa0b212b5267afdb0db7787658aacf75c8e1b28c32d78f2af54a0f62e
SHA512849536457fff9c93eb288e04ded17c05576e9bee64df8636561ed0a4c221e3ee6c8344eba068f68b11979af14b4f31a86870d202671cdddece41d32ad94c6aeb
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Filesize
4.1MB
MD56eda20e70933326bf41ba9903d8d8933
SHA13888cb5ddf8c004c230192b027eb17fbabcb71cf
SHA256281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517
SHA512e00ed9d954c00764a3271cf38a5300dffceb0f9b1606223ac2fb43a50eac94be761f42bb03cb7465ff4495d0518a6f00878bc89ba1000c64242795b740ca696e
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec