Analysis
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max time kernel
149s -
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
15-05-2024 15:21
Static task
static1
Behavioral task
behavioral1
Sample
b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe
Resource
win10v2004-20240426-en
General
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Target
b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe
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Size
4.1MB
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MD5
6279216e2228696ce7ff2398f88b02bf
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SHA1
70b0fe2d0f9b10829fc10cd4be39394330501695
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SHA256
b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3
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SHA512
a50a70b89f61b04f5e6afa3920c3e3eeef50808d3c0c607e8c528a17925761c7cbd65ada9632d53c7ca470693ddca81ea59e3832664ebe7093918f830b9493b5
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SSDEEP
98304:KoJ/zNpfNOjfVFQ/nccBDV6mYf0gdQtHi3wo8k3cC1G76/iJ:KgrNPOj9FQvccBDkmyddxD3VFiJ
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/692-2-0x0000000004DF0000-0x00000000056DB000-memory.dmp family_glupteba behavioral2/memory/692-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/692-52-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/692-53-0x0000000004DF0000-0x00000000056DB000-memory.dmp family_glupteba behavioral2/memory/692-81-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1340-80-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/1340-127-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3544-162-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3544-204-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3544-215-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3544-218-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3544-221-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3544-224-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3544-227-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3544-230-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3544-233-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3544-236-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3544-239-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3544-242-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2924 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3544 csrss.exe 1892 injector.exe 1612 windefender.exe 3344 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa1a-207.dat upx behavioral2/memory/1612-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3344-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1612-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3344-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3344-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\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 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe File created C:\Windows\rss\csrss.exe b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.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 1336 sc.exe -
pid Process 4580 powershell.exe 652 powershell.exe 3156 powershell.exe 428 powershell.exe 852 powershell.exe 1796 powershell.exe 1868 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 4968 schtasks.exe 408 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process 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,-161 = "Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-911 = "Mauritius Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs 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,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-562 = "SE Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.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\@tzres.dll,-362 = "GTB Standard 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" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-572 = "China Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2772 = "Omsk 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,-121 = "SA Pacific Daylight Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2182 = "Astrakhan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1471 = "Magadan Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 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,-32 = "Mid-Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs 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\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 852 powershell.exe 852 powershell.exe 692 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 692 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 1796 powershell.exe 1796 powershell.exe 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 1868 powershell.exe 1868 powershell.exe 4580 powershell.exe 4580 powershell.exe 652 powershell.exe 652 powershell.exe 3156 powershell.exe 3156 powershell.exe 428 powershell.exe 428 powershell.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 3544 csrss.exe 3544 csrss.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 3544 csrss.exe 3544 csrss.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 3544 csrss.exe 3544 csrss.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 852 powershell.exe Token: SeDebugPrivilege 692 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Token: SeImpersonatePrivilege 692 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe Token: SeDebugPrivilege 1796 powershell.exe Token: SeDebugPrivilege 1868 powershell.exe Token: SeDebugPrivilege 4580 powershell.exe Token: SeDebugPrivilege 652 powershell.exe Token: SeDebugPrivilege 3156 powershell.exe Token: SeDebugPrivilege 428 powershell.exe Token: SeSystemEnvironmentPrivilege 3544 csrss.exe Token: SeSecurityPrivilege 1336 sc.exe Token: SeSecurityPrivilege 1336 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 692 wrote to memory of 852 692 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 82 PID 692 wrote to memory of 852 692 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 82 PID 692 wrote to memory of 852 692 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 82 PID 1340 wrote to memory of 1796 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 87 PID 1340 wrote to memory of 1796 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 87 PID 1340 wrote to memory of 1796 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 87 PID 1340 wrote to memory of 3828 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 89 PID 1340 wrote to memory of 3828 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 89 PID 3828 wrote to memory of 2924 3828 cmd.exe 91 PID 3828 wrote to memory of 2924 3828 cmd.exe 91 PID 1340 wrote to memory of 1868 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 92 PID 1340 wrote to memory of 1868 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 92 PID 1340 wrote to memory of 1868 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 92 PID 1340 wrote to memory of 4580 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 94 PID 1340 wrote to memory of 4580 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 94 PID 1340 wrote to memory of 4580 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 94 PID 1340 wrote to memory of 3544 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 96 PID 1340 wrote to memory of 3544 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 96 PID 1340 wrote to memory of 3544 1340 b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe 96 PID 3544 wrote to memory of 652 3544 csrss.exe 97 PID 3544 wrote to memory of 652 3544 csrss.exe 97 PID 3544 wrote to memory of 652 3544 csrss.exe 97 PID 3544 wrote to memory of 3156 3544 csrss.exe 102 PID 3544 wrote to memory of 3156 3544 csrss.exe 102 PID 3544 wrote to memory of 3156 3544 csrss.exe 102 PID 3544 wrote to memory of 428 3544 csrss.exe 105 PID 3544 wrote to memory of 428 3544 csrss.exe 105 PID 3544 wrote to memory of 428 3544 csrss.exe 105 PID 3544 wrote to memory of 1892 3544 csrss.exe 107 PID 3544 wrote to memory of 1892 3544 csrss.exe 107 PID 1612 wrote to memory of 2264 1612 windefender.exe 113 PID 1612 wrote to memory of 2264 1612 windefender.exe 113 PID 1612 wrote to memory of 2264 1612 windefender.exe 113 PID 2264 wrote to memory of 1336 2264 cmd.exe 114 PID 2264 wrote to memory of 1336 2264 cmd.exe 114 PID 2264 wrote to memory of 1336 2264 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\b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe"C:\Users\Admin\AppData\Local\Temp\b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:692 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:852
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C:\Users\Admin\AppData\Local\Temp\b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.exe"C:\Users\Admin\AppData\Local\Temp\b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3.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:1340 -
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:1796
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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:3828 -
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:2924
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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:1868
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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:4580
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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:3544 -
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:652
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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:4968
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4892
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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:3156
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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:428
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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:1892
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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:408
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1612 -
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:2264 -
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:1336
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3344
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
MD5a1bdf59edc590eb0abe460119866f044
SHA1936415cc014d6febf5c34980699f27b34743c013
SHA256d702dfe2dc1f5e0a9883f3ca5ddd8039abeda02fd5b93dc92e830b2a8a2105c3
SHA512d3f6ffe7401a590df00395e39ab79dcf2ed4de6f87b423236edb8314dc803e510a4716b197a0e458864cc4df63897cf177f30db4da45322055ba82180757bb6c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59caa24fb0c427c59c73e15297a584095
SHA1b0927fdbc7e72a4ad5d46bd28124f226306dc2e6
SHA25669f8bd3e038794c6fb283cdfc081c56ac5c0cc25d56116bbf85a93dc67ffbbb8
SHA512f661d03ef791dc19d4a5f030cafafa829c846cf5ea6cc93f58abc46ccf340ccd443cff8da0c7de0de84d8483e33fde156ea27a9176bf1ded05990edec6c669df
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59addb0e1beaefcf043fad242be53971b
SHA130dcbc2161d74b57192bab9c007133d3022c991d
SHA25626d5a4a60cb653a7766be9f91a4bf14202b843c22c2a739091982c79850d0133
SHA512413cdb9be890d560fbf2d999d6633128350a06f40c9e895f8511fdde6cef520d3597b2fc488bf773fe9813d32be88e2cbbfba954ac3bf0bbf8c5b2fc35acc28d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56d937c182375ab069cf2dd051b4a243b
SHA19e000f26241043c3cb1d38991c3876145683fda0
SHA2569ccfcaa584ade8438b77b3b026f40b7dab558714c9536c8d1a17df37deaa604a
SHA512b1b335c142e5f49a6db3dd3bd8453e1a57aa3868690b24e19b6204a0a74258327a646745199b63c8248e1cf0e7e504e3a5191903168fcbc0cd9094b06fa4d29f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e2148006f71db0c00ebedce4cd74ae2a
SHA17ef9dd61bac4dd5d5c193f7fb480b6771060f929
SHA256986f7582d7339d967dca704f456939339d92a32a724fd869e3d0096d05c00b5c
SHA512fc5a24a6b282b22990b1d3fe9b4099e2529663c1771d026c0cd0d2893fe51d61d860d1fd42e7a14ccd6e85edd4174079ff7df1aa91a08a288196fc82288c01d3
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Filesize
4.1MB
MD56279216e2228696ce7ff2398f88b02bf
SHA170b0fe2d0f9b10829fc10cd4be39394330501695
SHA256b4b5fa43d2a42aece620df3061766d81d5c600e8e5bb16bbe63f2f1188e309e3
SHA512a50a70b89f61b04f5e6afa3920c3e3eeef50808d3c0c607e8c528a17925761c7cbd65ada9632d53c7ca470693ddca81ea59e3832664ebe7093918f830b9493b5
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec