Analysis
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max time kernel
149s -
max time network
144s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 11:24
Static task
static1
Behavioral task
behavioral1
Sample
b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe
Resource
win10v2004-20240226-en
General
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Target
b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe
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Size
4.1MB
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MD5
809d48296919decb9e35f37b81569f62
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SHA1
2f0f4c33547ec7f403cbbe7eb58a0fabc28b5ead
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SHA256
b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6
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SHA512
05157c49a30084d497d01820c53f2b252931ea2f5a30a24424274bf94d787e93868132be78b0295006c3a8a3aadd7141b43769dd2aab4f1866a730cb1405af9b
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SSDEEP
98304:1H+PiUxpnK5pcCD6RLXH4DRMjOnEmJ5mWZ44js55cU5wvI2r:1H+PiSfw6Rz4ejOEAZ44S5J5ww2r
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/3440-2-0x0000000004480000-0x0000000004D6B000-memory.dmp family_glupteba behavioral2/memory/3440-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3440-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3440-54-0x0000000004480000-0x0000000004D6B000-memory.dmp family_glupteba behavioral2/memory/3440-51-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2208-125-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3164-203-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3164-213-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3164-215-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3164-217-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3164-219-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3164-221-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3164-223-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3164-225-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3164-227-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3164-229-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3164-231-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3164-233-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3164-235-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 3264 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 3164 csrss.exe 1116 injector.exe 2768 windefender.exe 1976 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002aa1d-206.dat upx behavioral2/memory/2768-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1976-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2768-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1976-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1976-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2551177587-3778486488-1329702901-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\S-1-5-21-2551177587-3778486488-1329702901-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription 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.
Processes:
b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe -
Drops file in Windows directory 4 IoCs
Processes:
b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe File created C:\Windows\rss\csrss.exe b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.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.
Processes:
sc.exepid Process 1624 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 3184 powershell.exe 3712 powershell.exe 3624 powershell.exe 3636 powershell.exe 648 powershell.exe 4024 powershell.exe 3124 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid Process 2936 schtasks.exe 3444 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exewindefender.exeb4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process 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,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-372 = "Jerusalem Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-401 = "Arabic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-661 = "Cen. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time" windefender.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\2a\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-931 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1662 = "Bahia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeb4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exepowershell.exeb4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 3184 powershell.exe 3184 powershell.exe 3440 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 3440 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 3712 powershell.exe 3712 powershell.exe 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 3624 powershell.exe 3624 powershell.exe 3636 powershell.exe 3636 powershell.exe 648 powershell.exe 648 powershell.exe 4024 powershell.exe 4024 powershell.exe 3124 powershell.exe 3124 powershell.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 3164 csrss.exe 3164 csrss.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 3164 csrss.exe 3164 csrss.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 3164 csrss.exe 3164 csrss.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe 1116 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exeb4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 3184 powershell.exe Token: SeDebugPrivilege 3440 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Token: SeImpersonatePrivilege 3440 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Token: SeDebugPrivilege 3712 powershell.exe Token: SeDebugPrivilege 3624 powershell.exe Token: SeDebugPrivilege 3636 powershell.exe Token: SeDebugPrivilege 648 powershell.exe Token: SeDebugPrivilege 4024 powershell.exe Token: SeDebugPrivilege 3124 powershell.exe Token: SeSystemEnvironmentPrivilege 3164 csrss.exe Token: SeSecurityPrivilege 1624 sc.exe Token: SeSecurityPrivilege 1624 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exeb4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 3440 wrote to memory of 3184 3440 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 81 PID 3440 wrote to memory of 3184 3440 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 81 PID 3440 wrote to memory of 3184 3440 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 81 PID 2208 wrote to memory of 3712 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 87 PID 2208 wrote to memory of 3712 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 87 PID 2208 wrote to memory of 3712 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 87 PID 2208 wrote to memory of 2460 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 89 PID 2208 wrote to memory of 2460 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 89 PID 2460 wrote to memory of 3264 2460 cmd.exe 91 PID 2460 wrote to memory of 3264 2460 cmd.exe 91 PID 2208 wrote to memory of 3624 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 92 PID 2208 wrote to memory of 3624 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 92 PID 2208 wrote to memory of 3624 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 92 PID 2208 wrote to memory of 3636 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 94 PID 2208 wrote to memory of 3636 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 94 PID 2208 wrote to memory of 3636 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 94 PID 2208 wrote to memory of 3164 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 96 PID 2208 wrote to memory of 3164 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 96 PID 2208 wrote to memory of 3164 2208 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 96 PID 3164 wrote to memory of 648 3164 csrss.exe 97 PID 3164 wrote to memory of 648 3164 csrss.exe 97 PID 3164 wrote to memory of 648 3164 csrss.exe 97 PID 3164 wrote to memory of 4024 3164 csrss.exe 103 PID 3164 wrote to memory of 4024 3164 csrss.exe 103 PID 3164 wrote to memory of 4024 3164 csrss.exe 103 PID 3164 wrote to memory of 3124 3164 csrss.exe 105 PID 3164 wrote to memory of 3124 3164 csrss.exe 105 PID 3164 wrote to memory of 3124 3164 csrss.exe 105 PID 3164 wrote to memory of 1116 3164 csrss.exe 107 PID 3164 wrote to memory of 1116 3164 csrss.exe 107 PID 2768 wrote to memory of 1568 2768 windefender.exe 113 PID 2768 wrote to memory of 1568 2768 windefender.exe 113 PID 2768 wrote to memory of 1568 2768 windefender.exe 113 PID 1568 wrote to memory of 1624 1568 cmd.exe 114 PID 1568 wrote to memory of 1624 1568 cmd.exe 114 PID 1568 wrote to memory of 1624 1568 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\b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe"C:\Users\Admin\AppData\Local\Temp\b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3440 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3184
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C:\Users\Admin\AppData\Local\Temp\b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe"C:\Users\Admin\AppData\Local\Temp\b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.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:2208 -
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:3712
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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:2460 -
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:3264
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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:3624
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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:3636
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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:3164 -
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:648
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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:2936
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3252
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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:4024
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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:3124
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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:1116
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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:3444
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2768 -
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:1568 -
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:1624
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1976
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
MD51c596eba0e500a2d2b6bc7d7d78cea2c
SHA1035369c503ab5ea4d1d2540687df6004a046f35c
SHA2563c67bccd653ce9b376f4fe2e30067c3e2abd3d8befe02df7c3e78d2c55fceaf7
SHA512c557b89388071815877259c2624e71f0c407f39ee0d2f6321624581020cf473d32d74d86d5c5a55225d1ccf93f8a09a9ed43dafa51fa94072565115791e2d956
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bdf5765c0ff1b402b8ae4e7e7c600342
SHA10d0b0bb272ac08f6c4ee7598bd93d27640f5d755
SHA256487a1d9eb92d436d25f8d8d3ee9fe7cb983fc64b906bb883dd283cad90e4c692
SHA5126817ce7d182c056bf4f4ffd2c6a42af4b00de4624d1f4a696a585786a449cc038343ce9ee7e68ed2cb349d9a2d13489f3de8da098bb79898940fde8269f3175b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5909555a7d5b86a23179d822cd47d1c56
SHA1e1d41d844e6785219293bcc5ddd97dd1661c448c
SHA2564e0d4db16ad8b07bb5dcf9f4686381e4a0588ed8353bcfa0b083fd2f06117ef2
SHA5124537808b4b70d8468a788d60c76e3764d7f723f05400f8a4ac7c3b7ae636f6d78962342a764aec044669bec85adbfa8cd98b3d10782bc141768f283ca6bc7a18
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57fd61444d2e53a8e65ef63d4ab377eb3
SHA1d3316e65c84489e9a52d8d3103e1c26965698a61
SHA25617798cf6c6157c4df24b72708327b6b11eff96df480f6c120533d76a85e7cf55
SHA512fab38083a1db0bab29badf69ce0a129a2273fe89e69b4f6fc89f0d91a36f555ec15e11a7d09e643826ffbffc5340d4b20888e8caa3e6c8d3511e2349f37f3adf
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fe664b7d9b6a775fbf547c723cfa4cc3
SHA145d36c8be159a475fdf050405a7aac4778746e26
SHA256afdca5b83835d4c0bf3612e2255e93e6f25ab739add67b72d430ce4f163c4da5
SHA5121a47030b17e38e49cef001b7a6cb3040a1d2bd4ca73e4534134725e4c8d8eccbbd5dbe11b62ef7f225dfa316b21784646b56bbc663127a8d1d898b690091a75c
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Filesize
4.1MB
MD5809d48296919decb9e35f37b81569f62
SHA12f0f4c33547ec7f403cbbe7eb58a0fabc28b5ead
SHA256b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6
SHA51205157c49a30084d497d01820c53f2b252931ea2f5a30a24424274bf94d787e93868132be78b0295006c3a8a3aadd7141b43769dd2aab4f1866a730cb1405af9b
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec