Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 20:38
Static task
static1
Behavioral task
behavioral1
Sample
b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe
Resource
win10v2004-20240426-en
General
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Target
b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe
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Size
4.1MB
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MD5
982a5a090ff439f08509d4e1f27262a3
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SHA1
5ac4e3f7d87fc63697f8f0d13d74194d1d3f985a
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SHA256
b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d
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SHA512
32f6d0fc930ddb7b366e52370762cd302f39d2d94220be8f9ae98bef55ee6b657665798cc65bb01c38ab12fc6f3cbb1862a5f1e2e3d23ee08df623eabc8d8a99
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SSDEEP
98304:77sgfTqZm7fywQIpjGUn+cmloZHued8miXbTsPufBvNx:7zgmDywQg+foZ8mw6SX
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/4112-2-0x00000000048A0000-0x000000000518B000-memory.dmp family_glupteba behavioral1/memory/4112-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4112-131-0x00000000048A0000-0x000000000518B000-memory.dmp family_glupteba behavioral1/memory/4112-130-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4080-135-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4112-208-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3916-215-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3916-217-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3916-219-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3916-221-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3916-223-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3916-225-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3916-227-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3916-229-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3916-231-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3916-233-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3916-235-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3916-237-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3916-239-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2880 netsh.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid Process 3916 csrss.exe 5060 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\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.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription 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 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 -
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.
Processes:
b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe -
Drops file in Windows directory 2 IoCs
Processes:
b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exedescription ioc Process File opened for modification C:\Windows\rss b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe File created C:\Windows\rss\csrss.exe b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 1388 powershell.exe 3928 powershell.exe 2756 powershell.exe 4124 powershell.exe 936 powershell.exe 1360 powershell.exe 3892 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid Process 2720 schtasks.exe 4564 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed 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\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed 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,-181 = "Mountain Daylight Time (Mexico)" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.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\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.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\ProxyBypass = "1" 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\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs 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\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeb5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exepowershell.exeb5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 1388 powershell.exe 1388 powershell.exe 4112 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 4112 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 3928 powershell.exe 3928 powershell.exe 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 2756 powershell.exe 2756 powershell.exe 4124 powershell.exe 4124 powershell.exe 4124 powershell.exe 936 powershell.exe 936 powershell.exe 1360 powershell.exe 1360 powershell.exe 3892 powershell.exe 3892 powershell.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 3916 csrss.exe 3916 csrss.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 3916 csrss.exe 3916 csrss.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
powershell.exeb5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exedescription pid Process Token: SeDebugPrivilege 1388 powershell.exe Token: SeDebugPrivilege 4112 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Token: SeImpersonatePrivilege 4112 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Token: SeDebugPrivilege 3928 powershell.exe Token: SeDebugPrivilege 2756 powershell.exe Token: SeDebugPrivilege 4124 powershell.exe Token: SeDebugPrivilege 936 powershell.exe Token: SeDebugPrivilege 1360 powershell.exe Token: SeDebugPrivilege 3892 powershell.exe Token: SeSystemEnvironmentPrivilege 3916 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exeb5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.execmd.execsrss.exedescription pid Process procid_target PID 4112 wrote to memory of 1388 4112 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 88 PID 4112 wrote to memory of 1388 4112 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 88 PID 4112 wrote to memory of 1388 4112 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 88 PID 4080 wrote to memory of 3928 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 98 PID 4080 wrote to memory of 3928 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 98 PID 4080 wrote to memory of 3928 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 98 PID 4080 wrote to memory of 4416 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 100 PID 4080 wrote to memory of 4416 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 100 PID 4416 wrote to memory of 2880 4416 cmd.exe 102 PID 4416 wrote to memory of 2880 4416 cmd.exe 102 PID 4080 wrote to memory of 2756 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 103 PID 4080 wrote to memory of 2756 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 103 PID 4080 wrote to memory of 2756 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 103 PID 4080 wrote to memory of 4124 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 107 PID 4080 wrote to memory of 4124 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 107 PID 4080 wrote to memory of 4124 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 107 PID 4080 wrote to memory of 3916 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 109 PID 4080 wrote to memory of 3916 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 109 PID 4080 wrote to memory of 3916 4080 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 109 PID 3916 wrote to memory of 936 3916 csrss.exe 110 PID 3916 wrote to memory of 936 3916 csrss.exe 110 PID 3916 wrote to memory of 936 3916 csrss.exe 110 PID 3916 wrote to memory of 1360 3916 csrss.exe 116 PID 3916 wrote to memory of 1360 3916 csrss.exe 116 PID 3916 wrote to memory of 1360 3916 csrss.exe 116 PID 3916 wrote to memory of 3892 3916 csrss.exe 118 PID 3916 wrote to memory of 3892 3916 csrss.exe 118 PID 3916 wrote to memory of 3892 3916 csrss.exe 118 PID 3916 wrote to memory of 5060 3916 csrss.exe 120 PID 3916 wrote to memory of 5060 3916 csrss.exe 120 -
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\b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe"C:\Users\Admin\AppData\Local\Temp\b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4112 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1388
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C:\Users\Admin\AppData\Local\Temp\b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe"C:\Users\Admin\AppData\Local\Temp\b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.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:4080 -
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:3928
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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:4416 -
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:2880
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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:2756
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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:4124
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3916 -
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:936
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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:2720
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1564
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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:1360
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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:3892
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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:5060
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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:4564
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5030bccc4c1cf5590d713897b08d9bc00
SHA18fdda9853b32c856f0e949a0d0fdac36dee0d647
SHA25696dfa16d45c408d034fed2069a2f517aa11b7fbf5a4592e8bf7dbff3c3c80008
SHA512022108ee0614dedc96b4c636d349188be662190b55c367b1514d146cb1ffc59d9e7c8b7bdd7afd2f873a2f524cf8de852feb11ed5759d4dca69c6912233de654
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a4ff0b552f51cb4cef7e5b3d74a67fd6
SHA1d786eb629d6f0f0fd7d6df0e6e9b862ce4e5b1f7
SHA2566fa80d1520ec0ccdb79f86833cb242f9225e71d18fea13b2916a009f7944707c
SHA5123852da0d119fc4923e0a5e594d0b52f03ce2abddae7a044fa00a248259afd31f48590f5170aebc5e27e617e261a2deb552e4aa141eaec52dbf25a0510c5a826b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b913b41053551c891aa3b9e45f662176
SHA111300e50cac2f5001339d7b7d3c704ae2c7852ec
SHA25654adb83e9ebd03ecd19f731e76c034e71a08b6af3ef4bdd5820dc76db11b0428
SHA512351f591c2a21ddf357e6b1a25808ca9c7490886c5086db050cb849d6278af661dfaa994cc9c595cfee1e123d1b9497fed0a078f4465ca1acb81db46049cc7e65
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD508b465db3e190db28544ba0b0c6fa9cf
SHA1083d73f6727fb7a415d392c196bccae952eb2f94
SHA2567d808a6fb70055e844a6bacba825bd2aa7258d4bef72796004bfc39184283c4d
SHA512a7083989c9901b22506bbc478e1fea00100565b0e29fdb4c63ca600ffcddea0b21a151600e227b26fb73a5504b87180f7902ff87e4f1ac662c55517efdfe2370
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ae4a196cbb3d7fbe4c20686b3b6a1f4c
SHA1bce4be8deb98850a7dfdc0e1bd8185008c1c8f38
SHA2566118e20317bc8fa1b12bf29c161f953b56a62d5015c44cbd7465c3122f4cf64c
SHA512f0881f1afcbbfaf7f611ef93fcc30b1a32107f7d6a540c268ef375149bf3dc27e6ddd58d257b058ec4f358170443d821da2927621902174cb192db78cd8cb87a
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Filesize
4.1MB
MD5982a5a090ff439f08509d4e1f27262a3
SHA15ac4e3f7d87fc63697f8f0d13d74194d1d3f985a
SHA256b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d
SHA51232f6d0fc930ddb7b366e52370762cd302f39d2d94220be8f9ae98bef55ee6b657665798cc65bb01c38ab12fc6f3cbb1862a5f1e2e3d23ee08df623eabc8d8a99