Analysis
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max time kernel
150s -
max time network
145s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
11/04/2024, 04:34
Static task
static1
Behavioral task
behavioral1
Sample
d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe
Resource
win10v2004-20231215-en
General
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Target
d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe
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Size
4.2MB
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MD5
b7cf5bfd6800b6da4e8a4574f1545ff6
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SHA1
a4ad3d7ab7099b8713dff5caef627bd2e67fc73b
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SHA256
d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0
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SHA512
18db551f1d921c2c7f80fe7dd2a20bd7c0aebee8f736fe15739fa5487bae7b5cd82dddfb4fec65cd5aaabbd975270c24a0202e21e5f8bb6f8d6453b8cc83b3b6
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SSDEEP
98304:GN82p1RaOBrZprThm2bJPX/vLZtLQqJmAlvHFH02ncDWTfHpY:+MStpnhFVxbz9J5TfH6
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/1740-2-0x0000000005360000-0x0000000005C4B000-memory.dmp family_glupteba behavioral2/memory/1740-3-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba behavioral2/memory/5032-53-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba behavioral2/memory/5032-64-0x0000000005210000-0x0000000005AFB000-memory.dmp family_glupteba behavioral2/memory/1740-96-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba behavioral2/memory/5032-126-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba behavioral2/memory/5032-144-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba behavioral2/memory/3508-238-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba behavioral2/memory/3508-248-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba behavioral2/memory/3508-251-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba behavioral2/memory/3508-254-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba behavioral2/memory/3508-257-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba behavioral2/memory/3508-260-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba behavioral2/memory/3508-263-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba behavioral2/memory/3508-266-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba behavioral2/memory/3508-269-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba behavioral2/memory/3508-272-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba behavioral2/memory/3508-275-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba behavioral2/memory/3508-278-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba behavioral2/memory/3508-281-0x0000000000400000-0x000000000310A000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3864 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3508 csrss.exe 2336 injector.exe 1528 windefender.exe 3864 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a776-241.dat upx behavioral2/memory/1528-245-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3864-249-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3864-255-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\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 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe File created C:\Windows\rss\csrss.exe d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.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 2900 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 4264 schtasks.exe 4548 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2411 = "Marquesas Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time" windefender.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\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\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,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-911 = "Mauritius Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4832 powershell.exe 4832 powershell.exe 1740 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 1740 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 2344 powershell.exe 2344 powershell.exe 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 2888 powershell.exe 2888 powershell.exe 4080 powershell.exe 4080 powershell.exe 2440 powershell.exe 2440 powershell.exe 1904 powershell.exe 1904 powershell.exe 2412 powershell.exe 2412 powershell.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 3508 csrss.exe 3508 csrss.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 3508 csrss.exe 3508 csrss.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 3508 csrss.exe 3508 csrss.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe 2336 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4832 powershell.exe Token: SeDebugPrivilege 1740 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Token: SeImpersonatePrivilege 1740 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe Token: SeDebugPrivilege 2344 powershell.exe Token: SeDebugPrivilege 2888 powershell.exe Token: SeDebugPrivilege 4080 powershell.exe Token: SeDebugPrivilege 2440 powershell.exe Token: SeDebugPrivilege 1904 powershell.exe Token: SeDebugPrivilege 2412 powershell.exe Token: SeSystemEnvironmentPrivilege 3508 csrss.exe Token: SeSecurityPrivilege 2900 sc.exe Token: SeSecurityPrivilege 2900 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1740 wrote to memory of 4832 1740 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 77 PID 1740 wrote to memory of 4832 1740 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 77 PID 1740 wrote to memory of 4832 1740 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 77 PID 5032 wrote to memory of 2344 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 82 PID 5032 wrote to memory of 2344 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 82 PID 5032 wrote to memory of 2344 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 82 PID 5032 wrote to memory of 3660 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 84 PID 5032 wrote to memory of 3660 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 84 PID 3660 wrote to memory of 3864 3660 cmd.exe 110 PID 3660 wrote to memory of 3864 3660 cmd.exe 110 PID 5032 wrote to memory of 2888 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 87 PID 5032 wrote to memory of 2888 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 87 PID 5032 wrote to memory of 2888 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 87 PID 5032 wrote to memory of 4080 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 89 PID 5032 wrote to memory of 4080 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 89 PID 5032 wrote to memory of 4080 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 89 PID 5032 wrote to memory of 3508 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 91 PID 5032 wrote to memory of 3508 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 91 PID 5032 wrote to memory of 3508 5032 d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe 91 PID 3508 wrote to memory of 2440 3508 csrss.exe 92 PID 3508 wrote to memory of 2440 3508 csrss.exe 92 PID 3508 wrote to memory of 2440 3508 csrss.exe 92 PID 3508 wrote to memory of 1904 3508 csrss.exe 98 PID 3508 wrote to memory of 1904 3508 csrss.exe 98 PID 3508 wrote to memory of 1904 3508 csrss.exe 98 PID 3508 wrote to memory of 2412 3508 csrss.exe 100 PID 3508 wrote to memory of 2412 3508 csrss.exe 100 PID 3508 wrote to memory of 2412 3508 csrss.exe 100 PID 3508 wrote to memory of 2336 3508 csrss.exe 102 PID 3508 wrote to memory of 2336 3508 csrss.exe 102 PID 1528 wrote to memory of 436 1528 windefender.exe 108 PID 1528 wrote to memory of 436 1528 windefender.exe 108 PID 1528 wrote to memory of 436 1528 windefender.exe 108 PID 436 wrote to memory of 2900 436 cmd.exe 109 PID 436 wrote to memory of 2900 436 cmd.exe 109 PID 436 wrote to memory of 2900 436 cmd.exe 109 -
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\d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe"C:\Users\Admin\AppData\Local\Temp\d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1740 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4832
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C:\Users\Admin\AppData\Local\Temp\d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.exe"C:\Users\Admin\AppData\Local\Temp\d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0.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:5032 -
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:2344
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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:3660 -
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:3864
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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:2888
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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:4080
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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:3508 -
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:2440
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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:4264
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2660
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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:1904
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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:2412
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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:2336
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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:4548
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1528 -
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:436 -
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:2900
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3864
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
MD598c6485035ddaacd6afabf7b72112fa5
SHA1b27c6fa066e6355b187429a252d3cd9605dc2ab0
SHA256bc492e28f90f213d21316107bd02255b2bb95bcd58b4d9a644ba2cdf0c8bd8b7
SHA5124d610507bb81c07fe4591a636cfce0e26c9325779619d0ddd086cab75a8c8623c80ea381ced30790c1072772029f7a11bef05d0112d515fa9f1d819653057ca4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD522f983deab3e00624e3112292400eb3b
SHA17c16c1264e3da6daef3b782f071c8e763dc0c05c
SHA256f41479914443bb0fd49f69af3d38801f74146ac7cb290078b72665ad3ea0e8f9
SHA5125fe53a71fafea663372fb5c73bcb413028dc91edf53629cadabc8bd47aaa0d4a5bf816a91e229f626cc2767f5db8a8225d6f5fdc85c86b77b60005254c440953
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e1406710d7e1789044f22d22062ee2c2
SHA18b4b0ff8bd625c6d196013bfca318b92fa749fb0
SHA25670132615c34609eadd637a2026cf93b1345ee9d8f17e40d0a179c4ee7ef27666
SHA512b890f1c9028f327bf49facb918ae36bbe0d1cf74efe1d641871c34bd6086fc73258db026736d70dae21e52eb8a2b788514c3c77288d11d6759297c9f49664a31
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b8bc88838bf1de538f173a7341d9ebcf
SHA11abf188568d505c4bc23035a59a0f7e6f1570563
SHA2569ba852cb29b27cc208a677e88461f669ea2f3c802e058a7926602094a75cbe9f
SHA5121c5a93e4db843709b2b1c4d87d5959a32a5c4eeaccb05acc53c30b588711bb6f6571a6955ddaf6da6be9b8bc3317f19691f58a3ae2e28f78ed499c11db66d939
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ed56e7fe7b5c3540970781976ccb5d11
SHA1b69ca69c610a12f0f728aa1d1c58792fad8ae822
SHA256234c29657502a659eab11a182932c1ae5324d4038edcc80f1f2c991d736e8091
SHA51273ac2f9974bae6136fa34b29c3664b2b99edc57ee4c612b42c96dd45bc2d1463a35283065b1615ccb742a001c583c58e85c2a2cf1d74b504a573102718226f24
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Filesize
4.2MB
MD5b7cf5bfd6800b6da4e8a4574f1545ff6
SHA1a4ad3d7ab7099b8713dff5caef627bd2e67fc73b
SHA256d6336d8e78363e4454bc05171325227362478b3ca8a00e97e9dbb74db1f8a0b0
SHA51218db551f1d921c2c7f80fe7dd2a20bd7c0aebee8f736fe15739fa5487bae7b5cd82dddfb4fec65cd5aaabbd975270c24a0202e21e5f8bb6f8d6453b8cc83b3b6
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec