Analysis
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max time kernel
150s -
max time network
155s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
09-04-2024 16:29
Static task
static1
Behavioral task
behavioral1
Sample
a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe
Resource
win10v2004-20240226-en
General
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Target
a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe
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Size
4.2MB
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MD5
0199dfb09c2c2eb3af4f9e8efb6dadca
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SHA1
e8cad6ebd8d4817bdb5c3bd6119ee92273482a71
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SHA256
a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7
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SHA512
2b9e7d1288709f71409317b49011f0f864d4d5b70768d631153bfe38192589f8b182a57ffdcd24c8858ef7f11c0a50f7b682fcf6b13e6691284bd8104718d659
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SSDEEP
98304:Cq77jqY634qYqqku+lyD9j83bmq6chkYsndCeM49l0PC8vwYt3LS/Hh+:Cg7jqGqHumyZj83bqlTnjD0P2G3Ig
Malware Config
Signatures
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Glupteba payload 21 IoCs
resource yara_rule behavioral2/memory/3460-2-0x0000000005380000-0x0000000005C6B000-memory.dmp family_glupteba behavioral2/memory/3460-3-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba behavioral2/memory/3460-24-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba behavioral2/memory/3460-52-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba behavioral2/memory/3460-54-0x0000000005380000-0x0000000005C6B000-memory.dmp family_glupteba behavioral2/memory/1436-56-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba behavioral2/memory/1436-85-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba behavioral2/memory/1436-103-0x0000000004E40000-0x000000000523A000-memory.dmp family_glupteba behavioral2/memory/1436-117-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba behavioral2/memory/1436-125-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba behavioral2/memory/1436-144-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba behavioral2/memory/1436-151-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba behavioral2/memory/1520-185-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba behavioral2/memory/1520-241-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba behavioral2/memory/1520-252-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba behavioral2/memory/1520-258-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba behavioral2/memory/1520-260-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba behavioral2/memory/1520-262-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba behavioral2/memory/1520-264-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba behavioral2/memory/1520-266-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba behavioral2/memory/1520-268-0x0000000000400000-0x0000000003105000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1160 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1520 csrss.exe 4944 injector.exe 4104 windefender.exe 1528 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a817-251.dat upx behavioral2/memory/4104-257-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1528-259-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1528-263-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-647252928-2816094679-1307623958-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\S-1-5-21-647252928-2816094679-1307623958-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File 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 -
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 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4436 sc.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 4316 schtasks.exe 3972 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1411 = "Syria Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-261 = "GMT Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.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\22\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1892 = "Russia TZ 3 Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-722 = "Central Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4840 powershell.exe 4840 powershell.exe 3460 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 3460 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 2620 powershell.exe 2620 powershell.exe 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 4588 powershell.exe 4588 powershell.exe 2728 powershell.exe 2728 powershell.exe 1100 powershell.exe 1100 powershell.exe 1412 powershell.exe 1412 powershell.exe 2032 powershell.exe 2032 powershell.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 1520 csrss.exe 1520 csrss.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 1520 csrss.exe 1520 csrss.exe 4944 injector.exe 4944 injector.exe 1520 csrss.exe 1520 csrss.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe 4944 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4840 powershell.exe Token: SeDebugPrivilege 3460 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Token: SeImpersonatePrivilege 3460 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe Token: SeDebugPrivilege 2620 powershell.exe Token: SeDebugPrivilege 4588 powershell.exe Token: SeDebugPrivilege 2728 powershell.exe Token: SeDebugPrivilege 1100 powershell.exe Token: SeDebugPrivilege 1412 powershell.exe Token: SeDebugPrivilege 2032 powershell.exe Token: SeSystemEnvironmentPrivilege 1520 csrss.exe Token: SeSecurityPrivilege 4436 sc.exe Token: SeSecurityPrivilege 4436 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3460 wrote to memory of 4840 3460 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 81 PID 3460 wrote to memory of 4840 3460 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 81 PID 3460 wrote to memory of 4840 3460 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 81 PID 1436 wrote to memory of 2620 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 86 PID 1436 wrote to memory of 2620 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 86 PID 1436 wrote to memory of 2620 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 86 PID 1436 wrote to memory of 456 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 88 PID 1436 wrote to memory of 456 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 88 PID 456 wrote to memory of 1160 456 cmd.exe 90 PID 456 wrote to memory of 1160 456 cmd.exe 90 PID 1436 wrote to memory of 4588 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 91 PID 1436 wrote to memory of 4588 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 91 PID 1436 wrote to memory of 4588 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 91 PID 1436 wrote to memory of 2728 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 93 PID 1436 wrote to memory of 2728 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 93 PID 1436 wrote to memory of 2728 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 93 PID 1436 wrote to memory of 1520 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 95 PID 1436 wrote to memory of 1520 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 95 PID 1436 wrote to memory of 1520 1436 a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe 95 PID 1520 wrote to memory of 1100 1520 csrss.exe 96 PID 1520 wrote to memory of 1100 1520 csrss.exe 96 PID 1520 wrote to memory of 1100 1520 csrss.exe 96 PID 1520 wrote to memory of 1412 1520 csrss.exe 102 PID 1520 wrote to memory of 1412 1520 csrss.exe 102 PID 1520 wrote to memory of 1412 1520 csrss.exe 102 PID 1520 wrote to memory of 2032 1520 csrss.exe 104 PID 1520 wrote to memory of 2032 1520 csrss.exe 104 PID 1520 wrote to memory of 2032 1520 csrss.exe 104 PID 1520 wrote to memory of 4944 1520 csrss.exe 106 PID 1520 wrote to memory of 4944 1520 csrss.exe 106 PID 4104 wrote to memory of 1540 4104 windefender.exe 112 PID 4104 wrote to memory of 1540 4104 windefender.exe 112 PID 4104 wrote to memory of 1540 4104 windefender.exe 112 PID 1540 wrote to memory of 4436 1540 cmd.exe 113 PID 1540 wrote to memory of 4436 1540 cmd.exe 113 PID 1540 wrote to memory of 4436 1540 cmd.exe 113 -
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\a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe"C:\Users\Admin\AppData\Local\Temp\a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3460 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4840
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C:\Users\Admin\AppData\Local\Temp\a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.exe"C:\Users\Admin\AppData\Local\Temp\a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7.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:1436 -
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:2620
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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:456 -
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:1160
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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:4588
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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:2728
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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:1520 -
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:1100
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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:3972
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4976
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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:1412
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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:2032
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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:4944
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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:4316
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4104 -
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:1540 -
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:4436
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1528
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
MD5bb242cffa9634d36342e15c63bdf3dae
SHA189a8a8ca63c5a48cb019cd30eec23f6d0a63527a
SHA256952a2e5b943b0d75789d10b467ce1431130f444ac2102a221eb4f3c7d4bc03fb
SHA512869975c805f09bbe2cab749051432e7e918ea94f0f1968468445cc35d346170ab51c923db01c52d2abd9903d1cfecdec039fa97bbbe7f6d811a5d32a419ccf2f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54fd1a82fa53d3910250b8c3527686d7a
SHA13a68fbd47b84748f2e6f1c4d48120a229615a52c
SHA256617161917a5b92e0ec5e67e06204554f35e62af1507662606af83143df3e75e2
SHA512896b470f22ffeb376c1f2dc2b3bdade1542ad971a0bcd829ee4f81d560a3b2fb15a332a731e39ed0a3a56e31169594e40ec15659632103c7f295909bef0e0aef
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ed969748d4d1852b4959ab9ae0a6d7a4
SHA164112b91eee6555d37a8b21bf9f187782b1e2c85
SHA2566e2e1c358cb8cd8d927a2f3a2c343fddc513a070399d99c4225146bf664726d4
SHA5121f9d5110e0417ccdea87557d6e46f9277910c30f26631af83f687499db2c10d1bb6131585dae1e956f7f86368042b52330fec8be08fbf1d2611f407761173d0e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57b806007fd12959b767f06fc9ef31a11
SHA13a9661f824829b33ca88928e3bd2f6f62c702b29
SHA2560c959152df545155aa7bc4d20036a7ef4af80914afdb7731fd7927782416c45c
SHA512f88813840b94cdd8be810a01d013f408a4672fc088411fbd1a31a51a68d67993e06a0a26fa69a3a6884cb0fb7954e2bb05f4e6ba397eca5eb84de9efebda9c3c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD532350138efa9ee311e6a017aef5fc1cd
SHA1ce01e82842f469a5b97a91f6f5e1c04db64df607
SHA25618b8fd94c84cc1bc97519ebdd73d3ac8188a18d694b15e965af2b024e8e1fb89
SHA512a8e60af1d95f1045ce0ddd33316c3a2055e7a7a59f75a8216225e1a082150772e303c4b7815e98057882c999ce068936cc2c53d6e59a9562d3031f326d18cea2
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Filesize
4.2MB
MD50199dfb09c2c2eb3af4f9e8efb6dadca
SHA1e8cad6ebd8d4817bdb5c3bd6119ee92273482a71
SHA256a3d6c15439eec7c90f015deab3e2fc930df70ab90630ad5a6c1a6bbebd3bc8b7
SHA5122b9e7d1288709f71409317b49011f0f864d4d5b70768d631153bfe38192589f8b182a57ffdcd24c8858ef7f11c0a50f7b682fcf6b13e6691284bd8104718d659
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec