Resubmissions
12/03/2025, 21:02
250312-zvs1kaszf1 1001/12/2023, 00:39
231201-az4kesdd2t 1014/07/2023, 01:04
230714-be4kcsbg44 1014/07/2023, 00:46
230714-a4m38sce8w 1014/07/2023, 00:15
230714-akchdsbf65 10Analysis
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max time kernel
299s -
max time network
278s -
platform
windows11-21h2_x64 -
resource
win11-20250217-en -
resource tags
arch:x64arch:x86image:win11-20250217-enlocale:en-usos:windows11-21h2-x64system -
submitted
12/03/2025, 21:02
Static task
static1
Behavioral task
behavioral1
Sample
27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe
Resource
win11-20250217-en
General
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Target
27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe
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Size
4.1MB
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MD5
a49b82957f9728361ef050399b1201e1
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SHA1
fb8fadf9edf93404cf5296e021788fe0319b3f51
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SHA256
27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303
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SHA512
2c054945c291cc3a9d2e0fa8f2d4aa0d0faf8164e1b227c7831e0e7d733ec2bd40989618706041b1a797aa7250781b93026fd1ebbbd14c3d6adbb37b1ac60b56
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SSDEEP
98304:39Zizxyr+yMV/mMXcm0UGc/CU5/uqvcHXM/fnEtY7OVaXxdW4cFpabf:NgAMoM+E7x/EVaXxdWZLy
Malware Config
Signatures
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Glupteba family
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Glupteba payload 34 IoCs
resource yara_rule behavioral1/memory/3152-2-0x0000000005390000-0x0000000005C7B000-memory.dmp family_glupteba behavioral1/memory/3152-3-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral1/memory/3152-50-0x0000000005390000-0x0000000005C7B000-memory.dmp family_glupteba behavioral1/memory/3152-60-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral1/memory/3152-72-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4084-123-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-192-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-199-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-201-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-203-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-205-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-207-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-209-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-211-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-213-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-215-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-217-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-219-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-221-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-223-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-225-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-227-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-229-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-231-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-233-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-235-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-237-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-239-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-241-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-243-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-245-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-247-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-249-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba behavioral1/memory/4568-251-0x0000000000400000-0x0000000002F2E000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2768 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 4568 csrss.exe 2288 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3835819470-2031661444-2626789713-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\S-1-5-21-3835819470-2031661444-2626789713-1000\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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe File created C:\Windows\rss\csrss.exe 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe -
pid Process 3968 powershell.exe 4168 powershell.exe 3128 powershell.exe 2352 powershell.exe 4396 powershell.exe 4380 powershell.exe 2720 powershell.exe -
Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe -
System Location Discovery: System Language Discovery 1 TTPs 10 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrss.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.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\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.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\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates 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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates 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\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4072 schtasks.exe 8 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3968 powershell.exe 3968 powershell.exe 3152 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 3152 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 4168 powershell.exe 4168 powershell.exe 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 3128 powershell.exe 3128 powershell.exe 2352 powershell.exe 2352 powershell.exe 4396 powershell.exe 4396 powershell.exe 4380 powershell.exe 4380 powershell.exe 2720 powershell.exe 2720 powershell.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 4568 csrss.exe 4568 csrss.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 4568 csrss.exe 4568 csrss.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 3968 powershell.exe Token: SeDebugPrivilege 3152 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Token: SeImpersonatePrivilege 3152 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe Token: SeDebugPrivilege 4168 powershell.exe Token: SeDebugPrivilege 3128 powershell.exe Token: SeDebugPrivilege 2352 powershell.exe Token: SeDebugPrivilege 4396 powershell.exe Token: SeDebugPrivilege 4380 powershell.exe Token: SeDebugPrivilege 2720 powershell.exe Token: SeSystemEnvironmentPrivilege 4568 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 3152 wrote to memory of 3968 3152 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 84 PID 3152 wrote to memory of 3968 3152 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 84 PID 3152 wrote to memory of 3968 3152 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 84 PID 4084 wrote to memory of 4168 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 89 PID 4084 wrote to memory of 4168 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 89 PID 4084 wrote to memory of 4168 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 89 PID 4084 wrote to memory of 1652 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 91 PID 4084 wrote to memory of 1652 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 91 PID 1652 wrote to memory of 2768 1652 cmd.exe 93 PID 1652 wrote to memory of 2768 1652 cmd.exe 93 PID 4084 wrote to memory of 3128 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 94 PID 4084 wrote to memory of 3128 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 94 PID 4084 wrote to memory of 3128 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 94 PID 4084 wrote to memory of 2352 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 96 PID 4084 wrote to memory of 2352 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 96 PID 4084 wrote to memory of 2352 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 96 PID 4084 wrote to memory of 4568 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 98 PID 4084 wrote to memory of 4568 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 98 PID 4084 wrote to memory of 4568 4084 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe 98 PID 4568 wrote to memory of 4396 4568 csrss.exe 99 PID 4568 wrote to memory of 4396 4568 csrss.exe 99 PID 4568 wrote to memory of 4396 4568 csrss.exe 99 PID 4568 wrote to memory of 4380 4568 csrss.exe 105 PID 4568 wrote to memory of 4380 4568 csrss.exe 105 PID 4568 wrote to memory of 4380 4568 csrss.exe 105 PID 4568 wrote to memory of 2720 4568 csrss.exe 107 PID 4568 wrote to memory of 2720 4568 csrss.exe 107 PID 4568 wrote to memory of 2720 4568 csrss.exe 107 PID 4568 wrote to memory of 2288 4568 csrss.exe 109 PID 4568 wrote to memory of 2288 4568 csrss.exe 109 -
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\27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe"C:\Users\Admin\AppData\Local\Temp\27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3152 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3968
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C:\Users\Admin\AppData\Local\Temp\27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe"C:\Users\Admin\AppData\Local\Temp\27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303.exe"2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4084 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4168
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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:1652 -
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
- Event Triggered Execution: Netsh Helper DLL
PID:2768
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3128
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2352
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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.
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4568 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4396
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Scheduled Task/Job: Scheduled Task
PID:4072
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3804
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4380
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2720
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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:2288
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Scheduled Task/Job: Scheduled Task
PID:8
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
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
MD5f4ed2f539987722d5e9bd9821d9a1431
SHA1627ea3baa997117df56bdc9af02d99f78e6d9f2d
SHA2569dce51d08b5ce373817c77fd49093b747a0d6d0df40a1c27c38f34fb3910576d
SHA512fa825e51f6257359ac4d89a48afbe800998a550e3921fc9d3c0b05fb023a37f77177d50866d7bbf338d185ba6cc61550f8604d40736e3d4c790c0bc3d444ffe9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58fb396ad719075a03f09bbb7a5497a18
SHA1692b20637afcfadc634c511ac477439f9ee4ef2b
SHA2565f3f562e736f4e9b35872272c4e723a2af9edae3ca9521a5a8d4d5c2264a5830
SHA512e55ff4a76d67e29bdb35b177ad98da4ca78a6e1cab87f2c229b1fa44297bd794c9db15867094200590edf14835a8a532e22b00a8943cebeb6c2be7ad2457c656
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD598387df991a04d8318347aa8c4060b16
SHA1acc639b86562b91d8bbebadbdade07c47f63247e
SHA256dff98f32b59599add076da0b1436150f146ba86753ef187604620f22f06a1531
SHA5129514f56412d6b4893e3da576c19d342749b0c8be53f8117d00aa6ced0620bf5f4fdeaf2004e61827e71d8e0814198518f404b657c1cce892edda7d68382bbbc3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50ddd9ea8cbb0f515819ed2e421ab090e
SHA1bc2326e6b578c409e2f45857dd4a5dfb91ac03a0
SHA2562da54ec6853bfd4ff98fb5c4173d64aed203ecde1e83a6b2b708b37ac75839cf
SHA512112d374523dc279bde833e5dcbb0113a3293147e6b63eb6745ac55ae05f9a8aa6d4541f675e54a580f5c5c033a5b1aa13673511e18eddf5d6d2a6c36497bce69
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ba15cfcbc958ed475298e2251370b589
SHA1e29880daca23454098144386b34f203f79e0fdbb
SHA2563dc1e4b43833c27ac422a84be21befd18bb53ba694ba01530c07e84c877d7bd2
SHA512d6f7e314f5685a3a18a4a76e6eaec538d1abd0efd7e189c4c68b89b91d3b3fb2bb557c71f5f2aee8ddf4b284db21ef1f9cec0b6326894b1f9bc4654d1deb0f86
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Filesize
4.1MB
MD5a49b82957f9728361ef050399b1201e1
SHA1fb8fadf9edf93404cf5296e021788fe0319b3f51
SHA25627f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303
SHA5122c054945c291cc3a9d2e0fa8f2d4aa0d0faf8164e1b227c7831e0e7d733ec2bd40989618706041b1a797aa7250781b93026fd1ebbbd14c3d6adbb37b1ac60b56