Analysis
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max time kernel
149s -
max time network
137s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
17-05-2024 13:06
Static task
static1
Behavioral task
behavioral1
Sample
b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe
Resource
win10v2004-20240426-en
General
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Target
b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe
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Size
4.1MB
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MD5
4a7ff395bc9a1a3102e533972a2119bf
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SHA1
393e50006c8d709bf9724a37e6bcffca33fdf78c
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SHA256
b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5
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SHA512
9304b8ba94516b92d5360f3e8aec3acc2bd74d0e748fe67a06101f155cd30adaf83d8ef83ae2cf76b299c3e6b7ece0fb1f49b705921760bdbc71307551f96864
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SSDEEP
98304:vhzlfCz+ccJ0CpUiRHjJlGcG1klIkRd3fLKEvd:Zz9CiccJ0CpfGcGG1DfLT
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/424-2-0x0000000004DA0000-0x000000000568B000-memory.dmp family_glupteba behavioral2/memory/424-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/424-52-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/424-63-0x0000000004DA0000-0x000000000568B000-memory.dmp family_glupteba behavioral2/memory/424-122-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/540-121-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/540-185-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3128-202-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3128-208-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3128-217-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3128-221-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3128-225-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3128-229-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3128-233-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3128-237-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3128-241-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3128-245-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3128-249-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3128-253-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4636 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3128 csrss.exe 900 injector.exe 2560 windefender.exe 644 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa17-207.dat upx behavioral2/memory/2560-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/644-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2560-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/644-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/644-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File 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 -
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 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe File created C:\Windows\rss\csrss.exe b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe File created 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 1836 sc.exe -
pid Process 4404 powershell.exe 2668 powershell.exe 1360 powershell.exe 1916 powershell.exe 2892 powershell.exe 2160 powershell.exe 4896 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 1108 schtasks.exe 5060 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-532 = "Sri Lanka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-631 = "Tokyo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.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,-231 = "Hawaiian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.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\CRLs 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\@tzres.dll,-362 = "GTB Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2411 = "Marquesas Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.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,-3141 = "South Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2632 = "Norfolk Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-351 = "FLE Daylight 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\@tzres.dll,-461 = "Afghanistan 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\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2892 powershell.exe 2892 powershell.exe 424 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 424 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 2160 powershell.exe 2160 powershell.exe 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 4896 powershell.exe 4896 powershell.exe 4404 powershell.exe 4404 powershell.exe 2668 powershell.exe 2668 powershell.exe 1360 powershell.exe 1360 powershell.exe 1916 powershell.exe 1916 powershell.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 3128 csrss.exe 3128 csrss.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 3128 csrss.exe 3128 csrss.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 3128 csrss.exe 3128 csrss.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe 900 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2892 powershell.exe Token: SeDebugPrivilege 424 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe Token: SeImpersonatePrivilege 424 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe Token: SeDebugPrivilege 2160 powershell.exe Token: SeDebugPrivilege 4896 powershell.exe Token: SeDebugPrivilege 4404 powershell.exe Token: SeDebugPrivilege 2668 powershell.exe Token: SeDebugPrivilege 1360 powershell.exe Token: SeDebugPrivilege 1916 powershell.exe Token: SeSystemEnvironmentPrivilege 3128 csrss.exe Token: SeSecurityPrivilege 1836 sc.exe Token: SeSecurityPrivilege 1836 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 424 wrote to memory of 2892 424 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 82 PID 424 wrote to memory of 2892 424 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 82 PID 424 wrote to memory of 2892 424 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 82 PID 540 wrote to memory of 2160 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 110 PID 540 wrote to memory of 2160 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 110 PID 540 wrote to memory of 2160 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 110 PID 540 wrote to memory of 4980 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 89 PID 540 wrote to memory of 4980 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 89 PID 4980 wrote to memory of 4636 4980 cmd.exe 91 PID 4980 wrote to memory of 4636 4980 cmd.exe 91 PID 540 wrote to memory of 4896 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 92 PID 540 wrote to memory of 4896 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 92 PID 540 wrote to memory of 4896 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 92 PID 540 wrote to memory of 4404 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 94 PID 540 wrote to memory of 4404 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 94 PID 540 wrote to memory of 4404 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 94 PID 540 wrote to memory of 3128 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 96 PID 540 wrote to memory of 3128 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 96 PID 540 wrote to memory of 3128 540 b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe 96 PID 3128 wrote to memory of 2668 3128 csrss.exe 97 PID 3128 wrote to memory of 2668 3128 csrss.exe 97 PID 3128 wrote to memory of 2668 3128 csrss.exe 97 PID 3128 wrote to memory of 1360 3128 csrss.exe 103 PID 3128 wrote to memory of 1360 3128 csrss.exe 103 PID 3128 wrote to memory of 1360 3128 csrss.exe 103 PID 3128 wrote to memory of 1916 3128 csrss.exe 105 PID 3128 wrote to memory of 1916 3128 csrss.exe 105 PID 3128 wrote to memory of 1916 3128 csrss.exe 105 PID 3128 wrote to memory of 900 3128 csrss.exe 107 PID 3128 wrote to memory of 900 3128 csrss.exe 107 PID 2560 wrote to memory of 3876 2560 windefender.exe 113 PID 2560 wrote to memory of 3876 2560 windefender.exe 113 PID 2560 wrote to memory of 3876 2560 windefender.exe 113 PID 3876 wrote to memory of 1836 3876 cmd.exe 114 PID 3876 wrote to memory of 1836 3876 cmd.exe 114 PID 3876 wrote to memory of 1836 3876 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\b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe"C:\Users\Admin\AppData\Local\Temp\b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:424 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2892
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C:\Users\Admin\AppData\Local\Temp\b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.exe"C:\Users\Admin\AppData\Local\Temp\b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5.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:540 -
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:2160
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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:4980 -
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:4636
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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:4896
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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:4404
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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:3128 -
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:2668
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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:1108
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2088
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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:1360
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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:1916
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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:900
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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:5060 -
C:\Windows\System32\Conhost.exe\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV15⤵PID:2160
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2560 -
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:3876 -
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:1836
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:644
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
MD580cf17d5707f613f7b261a3d788cafa3
SHA1dfd057aff22f0823aba27dcf134c7804d218a5c7
SHA25603009c0d838eb2f2d98c05447916e1b01a7a5f1ddedd12d6a19dc8b7f732be18
SHA512ce19ea682ace88dc59f4d735f92d22d45a938cccc432b5a04876c8ce3d0b5f02477080e12a4a33878310d1449548e568c1a5721e2050385bc736f71ead077b29
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53969dd13bf4d6a814deb6cffb0c506aa
SHA10e84ee648067d29d38d39d56516ab780362abaa2
SHA256a069938aab593c3f6aa0ca9b7bdd5e1f8313bbd346b5166825613eb149bdfcdf
SHA51217c8069737f53ed484814b262350d0d7793e2a30e2cf0052ec5c202de29c9711fe1069bc3293c272cebbd107bb5d723c60d6084d059eb5c89586c3dc0c5c57f4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5dd793179d2f002bc5fa1e04b70212dcf
SHA19a3f0d8551068d8a9ee01b92ea8c1e2441c42205
SHA2564a2d0d01aa8fa6d171e4cd8cd8166afc34a247c567229d3e8b96e13388780b82
SHA512245578925f3f26c512c1072ced240b79a779a7c2b0106967e4aa293cf0ec417ccf7925330cd2428c90ee28f33ddca22ee65842acf875c96d995a1a540466eae1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD503a7aeef1a25c786f9f9a3eacbb6561a
SHA14bc2714476f264129636d7c4a291eb6d9cf03a4c
SHA2566e1e14872d68470b5f4cd07057cbf107185d3c25acdb0c68279b2700da360504
SHA512058fd89c6572d97c69d4a00e323eaff672d550d4654bc83797f80be9a0557cda0cac670e7c679d7b988af63f29237c57cebeff14dece173f918b68b143f4c88a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d651fe9134e8333992992622d9470dbf
SHA17dfef87b0e259a2daca38b659833f008caffe694
SHA256ce05f2e4b9688c56e9ada858d62354c8afbbc9ae861b20703a4417d38b7dc10c
SHA512faa3d36907df3b3b42af8361b8c73fe2e663b9333bbc66e5deecdd7db818f136166b3e59b1075b2da0cff009039945ecc7da8910ca3c480e31968d25eeb8628a
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Filesize
4.1MB
MD54a7ff395bc9a1a3102e533972a2119bf
SHA1393e50006c8d709bf9724a37e6bcffca33fdf78c
SHA256b09388d90b0f89d3b615ef80eb5c1dc65aa1d2c6af24d7d736c8f7ed8c851ac5
SHA5129304b8ba94516b92d5360f3e8aec3acc2bd74d0e748fe67a06101f155cd30adaf83d8ef83ae2cf76b299c3e6b7ece0fb1f49b705921760bdbc71307551f96864
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec