Analysis
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max time kernel
150s -
max time network
148s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 14:04
Static task
static1
Behavioral task
behavioral1
Sample
73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe
Resource
win10v2004-20240508-en
General
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Target
73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe
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Size
4.1MB
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MD5
afef614a66fc7228f3bb0ee0b9dd7eae
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SHA1
c1b376558271f3a1cccdd599b3969db5b4edf2e5
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SHA256
73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d
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SHA512
86b741838132a101e15a84100e6766655889e0c6e429d11ad233ff9aac7ce66b9566e5e7651d990278dc8ee779c69d6697bfae3bc43c195ebd9984e64aef87e3
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SSDEEP
98304:IuOdAWE/bfbxbxBimum48oJjLrUZhWcgWy75MTps2CObMUZCzBSe:IuOpIddBi3V8Ojm7gWylM939CD
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/856-2-0x0000000004870000-0x000000000515B000-memory.dmp family_glupteba behavioral2/memory/856-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/856-108-0x0000000004870000-0x000000000515B000-memory.dmp family_glupteba behavioral2/memory/856-106-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/932-123-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/856-191-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3828-199-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3828-210-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3828-213-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3828-216-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3828-219-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3828-222-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3828-225-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3828-228-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3828-231-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3828-234-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3828-237-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3828-240-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3828-243-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 560 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3828 csrss.exe 4892 injector.exe 4860 windefender.exe 2152 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa1d-204.dat upx behavioral2/memory/4860-203-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2152-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4860-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2152-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2152-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2551177587-3778486488-1329702901-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2551177587-3778486488-1329702901-1000\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 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe File created C:\Windows\rss\csrss.exe 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3624 sc.exe -
pid Process 2936 powershell.exe 4472 powershell.exe 2680 powershell.exe 3972 powershell.exe 1412 powershell.exe 800 powershell.exe 1956 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 4728 schtasks.exe 2752 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-302 = "Romance Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-261 = "GMT Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs 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\2a\52C64B7E\@tzres.dll,-911 = "Mauritius Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\2a\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2181 = "Astrakhan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-732 = "Fiji Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time" windefender.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" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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\2a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2680 powershell.exe 2680 powershell.exe 856 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 856 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 3972 powershell.exe 3972 powershell.exe 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 1412 powershell.exe 1412 powershell.exe 800 powershell.exe 800 powershell.exe 1956 powershell.exe 1956 powershell.exe 2936 powershell.exe 2936 powershell.exe 4472 powershell.exe 4472 powershell.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 3828 csrss.exe 3828 csrss.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 3828 csrss.exe 3828 csrss.exe 4892 injector.exe 4892 injector.exe 3828 csrss.exe 3828 csrss.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2680 powershell.exe Token: SeDebugPrivilege 856 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Token: SeImpersonatePrivilege 856 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe Token: SeDebugPrivilege 3972 powershell.exe Token: SeDebugPrivilege 1412 powershell.exe Token: SeDebugPrivilege 800 powershell.exe Token: SeDebugPrivilege 1956 powershell.exe Token: SeDebugPrivilege 2936 powershell.exe Token: SeDebugPrivilege 4472 powershell.exe Token: SeSystemEnvironmentPrivilege 3828 csrss.exe Token: SeSecurityPrivilege 3624 sc.exe Token: SeSecurityPrivilege 3624 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 856 wrote to memory of 2680 856 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 81 PID 856 wrote to memory of 2680 856 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 81 PID 856 wrote to memory of 2680 856 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 81 PID 932 wrote to memory of 3972 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 87 PID 932 wrote to memory of 3972 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 87 PID 932 wrote to memory of 3972 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 87 PID 932 wrote to memory of 2440 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 89 PID 932 wrote to memory of 2440 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 89 PID 2440 wrote to memory of 560 2440 cmd.exe 91 PID 2440 wrote to memory of 560 2440 cmd.exe 91 PID 932 wrote to memory of 1412 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 92 PID 932 wrote to memory of 1412 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 92 PID 932 wrote to memory of 1412 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 92 PID 932 wrote to memory of 800 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 94 PID 932 wrote to memory of 800 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 94 PID 932 wrote to memory of 800 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 94 PID 932 wrote to memory of 3828 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 96 PID 932 wrote to memory of 3828 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 96 PID 932 wrote to memory of 3828 932 73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe 96 PID 3828 wrote to memory of 1956 3828 csrss.exe 97 PID 3828 wrote to memory of 1956 3828 csrss.exe 97 PID 3828 wrote to memory of 1956 3828 csrss.exe 97 PID 3828 wrote to memory of 2936 3828 csrss.exe 103 PID 3828 wrote to memory of 2936 3828 csrss.exe 103 PID 3828 wrote to memory of 2936 3828 csrss.exe 103 PID 3828 wrote to memory of 4472 3828 csrss.exe 105 PID 3828 wrote to memory of 4472 3828 csrss.exe 105 PID 3828 wrote to memory of 4472 3828 csrss.exe 105 PID 3828 wrote to memory of 4892 3828 csrss.exe 107 PID 3828 wrote to memory of 4892 3828 csrss.exe 107 PID 4860 wrote to memory of 3872 4860 windefender.exe 113 PID 4860 wrote to memory of 3872 4860 windefender.exe 113 PID 4860 wrote to memory of 3872 4860 windefender.exe 113 PID 3872 wrote to memory of 3624 3872 cmd.exe 114 PID 3872 wrote to memory of 3624 3872 cmd.exe 114 PID 3872 wrote to memory of 3624 3872 cmd.exe 114 -
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\73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe"C:\Users\Admin\AppData\Local\Temp\73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:856 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2680
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C:\Users\Admin\AppData\Local\Temp\73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.exe"C:\Users\Admin\AppData\Local\Temp\73fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d.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:932 -
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:3972
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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:2440 -
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:560
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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:1412
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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:800
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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:3828 -
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:1956
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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:4728
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4568
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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:2936
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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:4472
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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:4892
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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:2752
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4860 -
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:3872 -
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:3624
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2152
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD562f6907c619a9df4cdc2f8577a94d230
SHA173759a5c40255876d922573b614b81e2d0937a72
SHA25698e2c8bcf9c4b834c8619c4129449ff667a045cc904d8c2d0d997151b0756a7a
SHA512c66d517e2e64ac92dcca4dc8300790b3d3d42fb03205e1393bf4247a1e8678a7692bb5b56f001313b95ce5e525a0e5f33d7eed67f06fae1014f6c9050beaab05
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a20cdb0ccfa33e1c86796d938314d041
SHA1d485a0ab922803bc10d845279f45d9160efdcb7e
SHA256713a68eb94452c010621c65fcb87e311712c1fde0d7c93bff557dc26273dcd14
SHA5125404f6646138c77890f867af19528d42760284cd425772f0449a4e392f0c6247cb93d965b0d1ce2099a1a057393a25fff15c9a8b6fe34cc68bb6cfb0021ee80b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5420035d49778ed801eae5ad8e6250951
SHA1e1e38c24a37b1998246b4f88ca87eb1c7ea8b572
SHA2564eca53efcfa6bc39eea7a448cd8b99ce529a7f85146832eec1a0c44e719a32a6
SHA512ffd8c3e66cea736796156a19f22064e6b4d6eaf4303961c309b8de8fba83db37dcfe7be737d9033e6f8f59a352945ade92dc19ed804d3782f040c20cab728093
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fb1b1c6e3221a03c82d166069855d078
SHA19e1e66a4fbc4ef1b5f7e2d063df989067d76d117
SHA256293d59cd88036ae7dec5af1262c4512205d0bd71dec70bd53d0ac733a2234516
SHA512f93f544aa012d455ca69001d04e582ae2dc9e5a0a3612245874d70eecbbb3dc574fafb689f404be53ecd7d5938d378ddfe5f6cc3a6e4de938e34bad0b8e46c21
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD524c829be92a3fce97f1ffcfd83b62af6
SHA19a24b3b715b55bd46f4245cf37305645da61766c
SHA256fa0f5db7f1e32370b741ad642bf71c95876466c69df153945823241dc52a32ca
SHA51266f86845368821aba235e5ae566e0075966f0546c191523f6035cbf21f7586aee04d8cdcadfce7184c6581c5d98d4479e75aac09f55a5c6eb2ad51505fee6e00
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Filesize
4.1MB
MD5afef614a66fc7228f3bb0ee0b9dd7eae
SHA1c1b376558271f3a1cccdd599b3969db5b4edf2e5
SHA25673fa526574b5a3a96e7dd50eaa5bc01c9ea58a089763ca8c426c418468bb879d
SHA51286b741838132a101e15a84100e6766655889e0c6e429d11ad233ff9aac7ce66b9566e5e7651d990278dc8ee779c69d6697bfae3bc43c195ebd9984e64aef87e3
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec