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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
15/04/2024, 15:54
Static task
static1
Behavioral task
behavioral1
Sample
7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe
Resource
win10v2004-20240412-en
General
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Target
7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe
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Size
4.2MB
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MD5
8287d0fec3e8bda28acb3c46164c40d8
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SHA1
e527c223a10c6c34917d98f5c1302439d644ccc0
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SHA256
7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6
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SHA512
84873e0d65c0d9d65f69b0b4d63843a244f475d1216ef3483e422f9858f4950e20916a552fe760c3afbcb805213608cc4bc759cb2b4bf16b303dc040c621d7bb
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SSDEEP
98304:6uyrGypqI+jQNI2yZdVf1PPEbZeKJfOVA1nr687HqeK:urGyDNIhzK8AxHKp
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/1436-2-0x0000000005370000-0x0000000005C5B000-memory.dmp family_glupteba behavioral2/memory/1436-3-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4988-44-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4988-45-0x0000000005230000-0x0000000005B1B000-memory.dmp family_glupteba behavioral2/memory/1436-81-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4988-132-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4988-143-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4744-237-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4744-248-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4744-251-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4744-254-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4744-260-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4744-264-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4744-268-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4744-272-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4744-276-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4744-280-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4744-284-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4744-288-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/4744-292-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2532 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4744 csrss.exe 4084 injector.exe 1012 windefender.exe 2056 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa05-241.dat upx behavioral2/memory/1012-246-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2056-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2056-258-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2056-270-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.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 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 -
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 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3476 sc.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2188 4112 WerFault.exe 81 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4560 schtasks.exe 1604 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-651 = "AUS Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1022 = "Bangladesh Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-241 = "Samoa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs 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 powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2411 = "Marquesas Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2591 = "Tocantins Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\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\@tzres.dll,-364 = "Middle East Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4112 powershell.exe 4112 powershell.exe 1436 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 1436 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 3376 powershell.exe 3376 powershell.exe 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 2260 powershell.exe 2260 powershell.exe 4044 powershell.exe 4044 powershell.exe 4276 powershell.exe 4276 powershell.exe 2768 powershell.exe 2768 powershell.exe 464 powershell.exe 464 powershell.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4744 csrss.exe 4744 csrss.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4744 csrss.exe 4744 csrss.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4744 csrss.exe 4744 csrss.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe 4084 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4112 powershell.exe Token: SeDebugPrivilege 1436 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Token: SeImpersonatePrivilege 1436 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe Token: SeDebugPrivilege 3376 powershell.exe Token: SeDebugPrivilege 2260 powershell.exe Token: SeDebugPrivilege 4044 powershell.exe Token: SeDebugPrivilege 4276 powershell.exe Token: SeDebugPrivilege 2768 powershell.exe Token: SeDebugPrivilege 464 powershell.exe Token: SeSystemEnvironmentPrivilege 4744 csrss.exe Token: SeSecurityPrivilege 3476 sc.exe Token: SeSecurityPrivilege 3476 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1436 wrote to memory of 4112 1436 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 81 PID 1436 wrote to memory of 4112 1436 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 81 PID 1436 wrote to memory of 4112 1436 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 81 PID 4988 wrote to memory of 3376 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 89 PID 4988 wrote to memory of 3376 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 89 PID 4988 wrote to memory of 3376 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 89 PID 4988 wrote to memory of 4960 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 91 PID 4988 wrote to memory of 4960 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 91 PID 4960 wrote to memory of 2532 4960 cmd.exe 93 PID 4960 wrote to memory of 2532 4960 cmd.exe 93 PID 4988 wrote to memory of 2260 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 94 PID 4988 wrote to memory of 2260 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 94 PID 4988 wrote to memory of 2260 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 94 PID 4988 wrote to memory of 4044 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 96 PID 4988 wrote to memory of 4044 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 96 PID 4988 wrote to memory of 4044 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 96 PID 4988 wrote to memory of 4744 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 98 PID 4988 wrote to memory of 4744 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 98 PID 4988 wrote to memory of 4744 4988 7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe 98 PID 4744 wrote to memory of 4276 4744 csrss.exe 99 PID 4744 wrote to memory of 4276 4744 csrss.exe 99 PID 4744 wrote to memory of 4276 4744 csrss.exe 99 PID 4744 wrote to memory of 2768 4744 csrss.exe 105 PID 4744 wrote to memory of 2768 4744 csrss.exe 105 PID 4744 wrote to memory of 2768 4744 csrss.exe 105 PID 4744 wrote to memory of 464 4744 csrss.exe 107 PID 4744 wrote to memory of 464 4744 csrss.exe 107 PID 4744 wrote to memory of 464 4744 csrss.exe 107 PID 4744 wrote to memory of 4084 4744 csrss.exe 109 PID 4744 wrote to memory of 4084 4744 csrss.exe 109 PID 1012 wrote to memory of 4548 1012 windefender.exe 115 PID 1012 wrote to memory of 4548 1012 windefender.exe 115 PID 1012 wrote to memory of 4548 1012 windefender.exe 115 PID 4548 wrote to memory of 3476 4548 cmd.exe 116 PID 4548 wrote to memory of 3476 4548 cmd.exe 116 PID 4548 wrote to memory of 3476 4548 cmd.exe 116 -
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\7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe"C:\Users\Admin\AppData\Local\Temp\7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1436 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4112 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4112 -s 23203⤵
- Program crash
PID:2188
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C:\Users\Admin\AppData\Local\Temp\7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.exe"C:\Users\Admin\AppData\Local\Temp\7cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6.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:4988 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3376
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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:4960 -
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:2532
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2260
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4044
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4744 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4276
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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:4560
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3556
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2768
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:464
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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:4084
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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:1604
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1012 -
C:\Windows\SysWOW64\cmd.execmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)5⤵
- Suspicious use of WriteProcessMemory
PID:4548 -
C:\Windows\SysWOW64\sc.exesc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)6⤵
- Launches sc.exe
- Suspicious use of AdjustPrivilegeToken
PID:3476
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4112 -ip 41121⤵PID:4712
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2056
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
MD5b4304cc8f136e6deb6cedcf27a370b64
SHA1f385a456d77324ce9be4a50682d7bc6ad4ec4a44
SHA2569cceed97702df761df2508d228d164bbbd7282725c93af3103743a8acedb9d4c
SHA5122757cee57f851353de69b1131090ae72c671c4bea2d4ffb6f660c81b3d020ca58365315d41e1416ff92aaa0a0c70e5ee7f5b5b9ce81b90d255c33e5a68563859
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58b2086d9873bcfcdc0b14422601b64dd
SHA19a5afd93be22a0d4c5b52428fdf24797078ce2a5
SHA256aeae847a8be29861a6f253b2817070affc7549bc3295fc9080bec0bbfb72923c
SHA512a970231c9de8977c5bee0a6635b0a557d4869877f9da67fb3a6d69f8ee4b1a03ccff99145895acae22e1d5eac5c5fee209e18d3fd5d304d6e1ebfd904769c7ff
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c5d09d12ccc697e1daca273cd704bc32
SHA1a57928909a6884881b41d6152f3dc1dcb6c8d492
SHA256f9aa4c5814fb3b807eaa30bb44d8d55336a725577b40154c5f45f97a1a718609
SHA512b47d6e060e7beafdc1ad792ca9bb027d0b9d07eb1b15afd7b069cfcbbd8bbd58476f1412d98a73c2252e895dd29460f621b718ae4a57dfd1a521f1f07c6cc737
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD585d4f745862869805de9323dae780124
SHA143fb63806fe18755d0abf820720f17cd045185ca
SHA25628d7d25d21a6e2dce0a7226961463204fd22cfca995d87ff576e386a2623cb26
SHA51276707d66e7c98ccfdb1bd7173d77e98495fcd060f8edd785529dc67ee3576719a4609bb07307b94bf525acc873a702bea57b78e31b7ee189b99ddc10d4c0d685
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53427bf3c90cc8936199bd45e18c3ca44
SHA181211e14d24443f7c9206fbfe56587a261f8d715
SHA256b3457f5ae938dc813639d1aba58374cdd7e66331e27bf220c9b04a64bf1438dc
SHA512ad5414d1678ee1f47474101b0c5b6884257fe2cd37ea7d3849895465506fb1bfeff869794bf60bc41c74ce306f6bb0a749f42cd465e05a5c1b2f2ec4d28c3160
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Filesize
4.2MB
MD58287d0fec3e8bda28acb3c46164c40d8
SHA1e527c223a10c6c34917d98f5c1302439d644ccc0
SHA2567cbfd5f601ef487ec7e0225602223bc0e46accf9ef3d8476d607dc583fa743c6
SHA51284873e0d65c0d9d65f69b0b4d63843a244f475d1216ef3483e422f9858f4950e20916a552fe760c3afbcb805213608cc4bc759cb2b4bf16b303dc040c621d7bb
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec