Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
28/04/2024, 11:53
Static task
static1
Behavioral task
behavioral1
Sample
4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe
Resource
win10v2004-20240426-en
General
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Target
4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe
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Size
4.2MB
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MD5
f3919446f89a8b9dc4035f4ad1a1a7a5
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SHA1
5aeb012f5dfb0c1e7d6381fd62aca301abd0ba70
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SHA256
4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1
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SHA512
82acd6c273541a25042da4a3e5959a3096395e0b588c1c7aa34d1a7e82931f4b23294e4f87c31427c5d153b25c0132b2448b36f24f30e2ba00fcc9e6ea9df051
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SSDEEP
98304:AmzEVzSqSKvhGfCRRAYEemfBF+/eISc+EV6Wh9Npj16ZSvtZHZH:+xzpGf6+3fBMKo6wNr2SvtXH
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/4244-2-0x0000000003F20000-0x000000000480B000-memory.dmp family_glupteba behavioral2/memory/4244-3-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/4244-87-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/4244-120-0x0000000003F20000-0x000000000480B000-memory.dmp family_glupteba behavioral2/memory/1408-125-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/420-149-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/420-197-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/420-204-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/420-206-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/420-208-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/420-210-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/420-212-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/420-214-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/420-216-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/420-218-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/420-220-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/420-222-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/420-224-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4220 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 420 csrss.exe 4412 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-734199974-1358367239-436541239-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\S-1-5-21-734199974-1358367239-436541239-1000\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 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe File opened for modification C:\Windows\rss 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.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 1592 schtasks.exe 1540 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.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,-191 = "Mountain Daylight Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.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" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.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,-502 = "Nepal Standard Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3208 powershell.exe 3208 powershell.exe 4244 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 4244 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 5072 powershell.exe 5072 powershell.exe 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 4756 powershell.exe 4756 powershell.exe 3888 powershell.exe 3888 powershell.exe 2092 powershell.exe 2092 powershell.exe 5004 powershell.exe 5004 powershell.exe 5000 powershell.exe 5000 powershell.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 420 csrss.exe 420 csrss.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 420 csrss.exe 420 csrss.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe 4412 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 3208 powershell.exe Token: SeDebugPrivilege 4244 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Token: SeImpersonatePrivilege 4244 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe Token: SeDebugPrivilege 5072 powershell.exe Token: SeDebugPrivilege 4756 powershell.exe Token: SeDebugPrivilege 3888 powershell.exe Token: SeDebugPrivilege 2092 powershell.exe Token: SeDebugPrivilege 5004 powershell.exe Token: SeDebugPrivilege 5000 powershell.exe Token: SeSystemEnvironmentPrivilege 420 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 4244 wrote to memory of 3208 4244 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 82 PID 4244 wrote to memory of 3208 4244 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 82 PID 4244 wrote to memory of 3208 4244 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 82 PID 1408 wrote to memory of 5072 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 87 PID 1408 wrote to memory of 5072 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 87 PID 1408 wrote to memory of 5072 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 87 PID 1408 wrote to memory of 4836 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 89 PID 1408 wrote to memory of 4836 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 89 PID 4836 wrote to memory of 4220 4836 cmd.exe 91 PID 4836 wrote to memory of 4220 4836 cmd.exe 91 PID 1408 wrote to memory of 4756 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 92 PID 1408 wrote to memory of 4756 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 92 PID 1408 wrote to memory of 4756 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 92 PID 1408 wrote to memory of 3888 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 94 PID 1408 wrote to memory of 3888 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 94 PID 1408 wrote to memory of 3888 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 94 PID 1408 wrote to memory of 420 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 96 PID 1408 wrote to memory of 420 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 96 PID 1408 wrote to memory of 420 1408 4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe 96 PID 420 wrote to memory of 2092 420 csrss.exe 97 PID 420 wrote to memory of 2092 420 csrss.exe 97 PID 420 wrote to memory of 2092 420 csrss.exe 97 PID 420 wrote to memory of 5004 420 csrss.exe 102 PID 420 wrote to memory of 5004 420 csrss.exe 102 PID 420 wrote to memory of 5004 420 csrss.exe 102 PID 420 wrote to memory of 5000 420 csrss.exe 105 PID 420 wrote to memory of 5000 420 csrss.exe 105 PID 420 wrote to memory of 5000 420 csrss.exe 105 PID 420 wrote to memory of 4412 420 csrss.exe 107 PID 420 wrote to memory of 4412 420 csrss.exe 107 -
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\4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe"C:\Users\Admin\AppData\Local\Temp\4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4244 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3208
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C:\Users\Admin\AppData\Local\Temp\4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.exe"C:\Users\Admin\AppData\Local\Temp\4486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1.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:1408 -
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:5072
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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:4836 -
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:4220
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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:4756
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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:3888
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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:420 -
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:2092
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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:1540
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2932
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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:5004
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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:5000
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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:4412
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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:1592
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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
MD5ad1c62dd24541a2c07996100ae0d48eb
SHA16f51e4c94610d916033ce33f9176974bc2fe6fbb
SHA256c7f61f567dc8ee98fb3294298f07aecc4da83150387a2975e6af0616aaa0526a
SHA512167acf9c5431e7fb1a22bbf2b44034df5a5a1b066c7f1bdc9e678e13e66ae923c010c430fc8388e927415c39d99e083f503f359d8a5048ad70aa6310d7bc5837
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5697ee7b8b327f98c2e6909017db02ba5
SHA162575638bf02b92e977d362a5fd51b06b2ff1f3d
SHA25656dd6223c7cc559af5d7ad8ebd0b339499f1f22c0f8b8e2ea251805fb72b5551
SHA5126bd073774fe7f3884872ee12754bea3cdee8c3edb95d4080284104c392b1493a5c50e0112989ab9c15773825133d0dae43cbfd52ea6f76f624ab3ae45744051c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52844bda4777e284c0e5861ae1e180a1a
SHA1abda7f7f5e8b909dfe77df137d749d291180127b
SHA2568ad7eea768dad0985e189b4c4ee0376137b580b6b574074ab3500b96b79b6a8a
SHA5128c6d52a8fc130e7a5c56a99b42d769a0efb4423f17255f733ec33aa5ae3d8cccca5e657d5d56b5f886d056bd94be6e9cfed342b2728056a3d75941ce26e2474d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52deb9215b0289dae23d260cbe9d2d4fb
SHA1fd7ba597bf44575a1f808953e3cecfc386f66ab3
SHA25673d7e2909d576a1289c8dffe47234d0dd8cb38b6da032061a89b096fc84030ff
SHA5127bb093749130e5367ba79afb06e630b2a641db9de06fdadc9eafb056a86fd4901e9cc12dda1eb2b2e98a1e61b56271db9ed1626674e451847144a525db8d6f34
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD566a4639fcd08257e2a31205410bd1b99
SHA1450fc426049da22b309ce3600fa012aa03574397
SHA25698b21347aed16e409792830cc5ecc7131e484591fb82a3cf2d0b4615b053b2d4
SHA512170d7314001e9bfc41a645a38cc219120998af2fbfa3ee4afcfc0ea12d7e84e6d1d4895e901ed370c394f17d9449743b89cad5caeeb661308fa7e57635638be1
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Filesize
4.2MB
MD5f3919446f89a8b9dc4035f4ad1a1a7a5
SHA15aeb012f5dfb0c1e7d6381fd62aca301abd0ba70
SHA2564486a612069791e66e8e88818ccf5d1c5274a70e332d97dab2a3aa8347021fe1
SHA51282acd6c273541a25042da4a3e5959a3096395e0b588c1c7aa34d1a7e82931f4b23294e4f87c31427c5d153b25c0132b2448b36f24f30e2ba00fcc9e6ea9df051