Analysis
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max time kernel
150s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
16/05/2024, 23:42
Static task
static1
Behavioral task
behavioral1
Sample
43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe
Resource
win10v2004-20240226-en
General
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Target
43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe
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Size
4.1MB
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MD5
3583ebd00db887c8d1c14dbe4979e1e2
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SHA1
2ac2d5e7861669f4f1fd94b2ee371c440148323a
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SHA256
43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0
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SHA512
ec3ff6649419aa372737a24a3a4d59ab83e9d655acf8a6e4016cb33aa23838132c463eb8060df7ff2260b4a8d93f9c54cc3dca52d034e8c24c7015d255d6f708
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SSDEEP
98304:ieUiHluf0rQLB7qDC2cDnv7XkMmFoNL2AuFwfBpDq4kblyNxxbhOzhGB:igHncLBP5HkIsFwf3u4kByfxbhOG
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/4608-2-0x0000000002E20000-0x000000000370B000-memory.dmp family_glupteba behavioral2/memory/4608-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4608-118-0x0000000002E20000-0x000000000370B000-memory.dmp family_glupteba behavioral2/memory/4608-116-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4292-122-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1268-198-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1268-200-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1268-202-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1268-204-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1268-206-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1268-208-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1268-210-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1268-212-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1268-214-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1268-216-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1268-218-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1268-220-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1268-222-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4948 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 1268 csrss.exe 3820 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Set value (str) \REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000\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 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 -
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 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe File created C:\Windows\rss\csrss.exe 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe -
pid Process 4420 powershell.exe 3124 powershell.exe 2916 powershell.exe 3740 powershell.exe 4264 powershell.exe 4728 powershell.exe 3904 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 4108 schtasks.exe 2432 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process 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,-772 = "Montevideo Standard Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs 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\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\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,-105 = "Central Brazilian Standard Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.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,-362 = "GTB Standard Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed 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,-2772 = "Omsk Standard Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.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,-592 = "Malay Peninsula Standard Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.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,-292 = "Central European Standard Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4420 powershell.exe 4420 powershell.exe 4608 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 4608 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 3124 powershell.exe 3124 powershell.exe 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 2916 powershell.exe 2916 powershell.exe 3740 powershell.exe 3740 powershell.exe 4264 powershell.exe 4264 powershell.exe 4728 powershell.exe 4728 powershell.exe 3904 powershell.exe 3904 powershell.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 1268 csrss.exe 1268 csrss.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 1268 csrss.exe 1268 csrss.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe 3820 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 4420 powershell.exe Token: SeDebugPrivilege 4608 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Token: SeImpersonatePrivilege 4608 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe Token: SeDebugPrivilege 3124 powershell.exe Token: SeDebugPrivilege 2916 powershell.exe Token: SeDebugPrivilege 3740 powershell.exe Token: SeDebugPrivilege 4264 powershell.exe Token: SeDebugPrivilege 4728 powershell.exe Token: SeDebugPrivilege 3904 powershell.exe Token: SeSystemEnvironmentPrivilege 1268 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 4608 wrote to memory of 4420 4608 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 81 PID 4608 wrote to memory of 4420 4608 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 81 PID 4608 wrote to memory of 4420 4608 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 81 PID 4292 wrote to memory of 3124 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 88 PID 4292 wrote to memory of 3124 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 88 PID 4292 wrote to memory of 3124 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 88 PID 4292 wrote to memory of 4744 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 91 PID 4292 wrote to memory of 4744 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 91 PID 4744 wrote to memory of 4948 4744 cmd.exe 93 PID 4744 wrote to memory of 4948 4744 cmd.exe 93 PID 4292 wrote to memory of 2916 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 96 PID 4292 wrote to memory of 2916 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 96 PID 4292 wrote to memory of 2916 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 96 PID 4292 wrote to memory of 3740 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 98 PID 4292 wrote to memory of 3740 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 98 PID 4292 wrote to memory of 3740 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 98 PID 4292 wrote to memory of 1268 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 100 PID 4292 wrote to memory of 1268 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 100 PID 4292 wrote to memory of 1268 4292 43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe 100 PID 1268 wrote to memory of 4264 1268 csrss.exe 101 PID 1268 wrote to memory of 4264 1268 csrss.exe 101 PID 1268 wrote to memory of 4264 1268 csrss.exe 101 PID 1268 wrote to memory of 4728 1268 csrss.exe 106 PID 1268 wrote to memory of 4728 1268 csrss.exe 106 PID 1268 wrote to memory of 4728 1268 csrss.exe 106 PID 1268 wrote to memory of 3904 1268 csrss.exe 109 PID 1268 wrote to memory of 3904 1268 csrss.exe 109 PID 1268 wrote to memory of 3904 1268 csrss.exe 109 PID 1268 wrote to memory of 3820 1268 csrss.exe 111 PID 1268 wrote to memory of 3820 1268 csrss.exe 111 -
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\43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe"C:\Users\Admin\AppData\Local\Temp\43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4608 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4420
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C:\Users\Admin\AppData\Local\Temp\43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe"C:\Users\Admin\AppData\Local\Temp\43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.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:4292 -
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:3124
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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:4744 -
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:4948
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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:2916
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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:3740
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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:1268 -
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:4264
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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:2432
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:492
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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:4728
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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:3904
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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:3820
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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:4108
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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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD583f7c67f7e5158bf19e0fd3121a8541c
SHA155c2b0b60d37135fdf0d93d62b74c1068401a217
SHA256fcb6563ff58644852b62a585768aaf15f8e939531f049e6038ce21b23c3137ea
SHA51286a70be6aa2600f1f0d1ec9e5633b3a2af08c6bf957c41a6157ea37226ac6df5118e571d8348463c77a374654601b9733f28a6f43b2c580602be3e70658783cf
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50d6b66db3259fb57b474612c239e3957
SHA167f5ae5656e6821e955398cecad99ba332e72761
SHA2561196a7ca599c4652eb6f2a3fe582e2545fc5db92cc243742926604a971ad80f0
SHA51268c3ce727eb5b3aa0105ee7616c3cb7b8dc2c48b383e069a6c09a4962edb6f155887242ad1a9908af98e49444f41deb0418a2d88e4739a8276fef9367070ce24
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a37ef0a645657fbe9e501be53f1a005c
SHA15670e8ffe26264a2f157954f85bab4159e9164b7
SHA2561de6d25ef55bf28d9959c5b52ba41eddd3ebee282204481f1620f0e8108ee4e6
SHA512905565a676edb016859d49c960f36f6ec809e823f3440b732806b439814b38657ae514a7ddd9a68d2f47c7bf5462cb8732cbf00c6fb303b69de9d701ca889307
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c65bd4f7dbe55da0e0af17d5af95be1c
SHA1d3b48aa760b0031e672153d2f398ceff315d4974
SHA2563723a45aa34f075dbe0c48a9a94eaba02f9d2dd5fa096736b899a3352639fe25
SHA512d263af1b0b1932d363e3c10d16fadc83f18f27c2d84b32ab92281fa21d50fe3a0e8480c77cd002d8727f52ff3e36a2ffc4a800f06affd6d07b295a414730af80
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5eee9c66898d4112a5ae5e4f8568af5ff
SHA114adcc191301ef997bcdc0ad9f7ed86277d86fb7
SHA256baadefb45a7a2e3d91fd7a9504067bd2afaeda6e6cde2ed1f61125077771d604
SHA512077c19b01b439702d86941a8ae993783af34a758281bf2d9125fe434be4c10752a99d87059b0994e8fef8d1376bafd645f456fdab46820f1f7fe6617c38ff5ec
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Filesize
4.1MB
MD53583ebd00db887c8d1c14dbe4979e1e2
SHA12ac2d5e7861669f4f1fd94b2ee371c440148323a
SHA25643230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0
SHA512ec3ff6649419aa372737a24a3a4d59ab83e9d655acf8a6e4016cb33aa23838132c463eb8060df7ff2260b4a8d93f9c54cc3dca52d034e8c24c7015d255d6f708