Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
20-05-2024 05:06
Static task
static1
Behavioral task
behavioral1
Sample
b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe
Resource
win7-20240508-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/4296-2-0x00000000044D0000-0x0000000004DBB000-memory.dmp family_glupteba behavioral2/memory/4296-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4296-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4296-57-0x00000000044D0000-0x0000000004DBB000-memory.dmp family_glupteba behavioral2/memory/4296-54-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1696-134-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2768-218-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2768-228-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2768-230-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2768-232-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2768-234-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2768-236-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2768-238-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2768-240-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2768-242-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2768-244-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2768-246-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2768-248-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2768-250-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3908 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 2768 csrss.exe 1536 injector.exe 1068 windefender.exe 3536 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/1068-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3536-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1068-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3536-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3536-233-0x0000000000400000-0x00000000008DF000-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-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\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:
csrss.exeb4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exedescription ioc process File opened for modification C:\Windows\windefender.exe csrss.exe 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 -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 2168 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 1260 powershell.exe 1020 powershell.exe 1160 powershell.exe 4892 powershell.exe 2932 powershell.exe 3772 powershell.exe 4912 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 3064 schtasks.exe 2072 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.exeb4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs 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\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-511 = "Central Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1502 = "Turkey Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-962 = "Paraguay Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-11 = "Azores Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-231 = "Hawaiian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\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\2a\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight 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,-562 = "SE Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.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,-91 = "Pacific SA Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeb4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exepowershell.exeb4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 2932 powershell.exe 2932 powershell.exe 4296 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 4296 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 3772 powershell.exe 3772 powershell.exe 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 4912 powershell.exe 4912 powershell.exe 1260 powershell.exe 1260 powershell.exe 1020 powershell.exe 1020 powershell.exe 1160 powershell.exe 1160 powershell.exe 4892 powershell.exe 4892 powershell.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 2768 csrss.exe 2768 csrss.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 2768 csrss.exe 2768 csrss.exe 1536 injector.exe 1536 injector.exe 2768 csrss.exe 2768 csrss.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe 1536 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exeb4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 2932 powershell.exe Token: SeDebugPrivilege 4296 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Token: SeImpersonatePrivilege 4296 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Token: SeDebugPrivilege 3772 powershell.exe Token: SeDebugPrivilege 4912 powershell.exe Token: SeDebugPrivilege 1260 powershell.exe Token: SeDebugPrivilege 1020 powershell.exe Token: SeDebugPrivilege 1160 powershell.exe Token: SeDebugPrivilege 4892 powershell.exe Token: SeSystemEnvironmentPrivilege 2768 csrss.exe Token: SeSecurityPrivilege 2168 sc.exe Token: SeSecurityPrivilege 2168 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exeb4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4296 wrote to memory of 2932 4296 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe powershell.exe PID 4296 wrote to memory of 2932 4296 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe powershell.exe PID 4296 wrote to memory of 2932 4296 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe powershell.exe PID 1696 wrote to memory of 3772 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe powershell.exe PID 1696 wrote to memory of 3772 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe powershell.exe PID 1696 wrote to memory of 3772 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe powershell.exe PID 1696 wrote to memory of 1940 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe cmd.exe PID 1696 wrote to memory of 1940 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe cmd.exe PID 1940 wrote to memory of 3908 1940 cmd.exe netsh.exe PID 1940 wrote to memory of 3908 1940 cmd.exe netsh.exe PID 1696 wrote to memory of 4912 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe powershell.exe PID 1696 wrote to memory of 4912 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe powershell.exe PID 1696 wrote to memory of 4912 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe powershell.exe PID 1696 wrote to memory of 1260 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe powershell.exe PID 1696 wrote to memory of 1260 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe powershell.exe PID 1696 wrote to memory of 1260 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe powershell.exe PID 1696 wrote to memory of 2768 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe csrss.exe PID 1696 wrote to memory of 2768 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe csrss.exe PID 1696 wrote to memory of 2768 1696 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe csrss.exe PID 2768 wrote to memory of 1020 2768 csrss.exe powershell.exe PID 2768 wrote to memory of 1020 2768 csrss.exe powershell.exe PID 2768 wrote to memory of 1020 2768 csrss.exe powershell.exe PID 2768 wrote to memory of 1160 2768 csrss.exe powershell.exe PID 2768 wrote to memory of 1160 2768 csrss.exe powershell.exe PID 2768 wrote to memory of 1160 2768 csrss.exe powershell.exe PID 2768 wrote to memory of 4892 2768 csrss.exe powershell.exe PID 2768 wrote to memory of 4892 2768 csrss.exe powershell.exe PID 2768 wrote to memory of 4892 2768 csrss.exe powershell.exe PID 2768 wrote to memory of 1536 2768 csrss.exe injector.exe PID 2768 wrote to memory of 1536 2768 csrss.exe injector.exe PID 1068 wrote to memory of 2524 1068 windefender.exe cmd.exe PID 1068 wrote to memory of 2524 1068 windefender.exe cmd.exe PID 1068 wrote to memory of 2524 1068 windefender.exe cmd.exe PID 2524 wrote to memory of 2168 2524 cmd.exe sc.exe PID 2524 wrote to memory of 2168 2524 cmd.exe sc.exe PID 2524 wrote to memory of 2168 2524 cmd.exe sc.exe -
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:4296 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2932 -
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:1696 -
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:3772 -
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:1940 -
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:3908 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4912 -
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:1260 -
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:2768 -
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:1020 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3064 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:432
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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:1160 -
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:4892 -
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:1536 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:2072 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1068 -
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:2524 -
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:2168
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3536
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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5921edea47b18777c69937528b1cb9328
SHA197ac54f354c7f277a09582dea36389c34c97631f
SHA25676a8a6ec019fdd7cef0f872000929cefef52c38370aa193ddf582f81047e090d
SHA512ba1bd4ee7fcf40adeacb74b449718e26dffe111230f58930588a251ffc96abdea068393b0f84612c8eec4afa2b2b8ebcb1ce3684639f00cab365dbdda52d87fb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD584151e628321a50a5f75ca09ce0cdf27
SHA163dcdf2b58f170129e6c75f16786e3d0c88341ce
SHA2568b0f628a420495ae0bbe6671572f53c3adbce7c4c464da5d84a3a630cbcdbb95
SHA5129a8d5737158be501bba44b27975a9cd0c30555a5763b9571508fd6b8ff821fc91f3a412b3748cf05b0a35676aae6b51fb3ed1a35e78a7051baf2e4966b83a8ab
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58511e22badec7b333c5088348572ef1e
SHA1c7e683d3634080ef2f91d508695afbb958038540
SHA2564db35c14ab8dc1c1c3e033a28aa3265c5cae790274df40ea0fd9fbf909cf6365
SHA51242324dc6201de9e00baef38f5c678e892332caf7bebf329d269768c16e7dfcdb1020c496f31ee1c22e97d8200744643c2768e677012b4173a6d62d04ff1dbc23
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b5273322bd38b2cf278ca585dcd3569a
SHA11b94f0e857ac847609c0da70afb673982850a788
SHA25625e17d0a6f509a6d9db7ab5d758917f5d7ecea198d7b7424c104676f267685b4
SHA5124e3c4c03ed8cd761341234dac47b4b986b2587cc11a8e97708db62c8220211cd0613483afa8d931bd6ab59367980d58e6c6aac493b7346e49c07dbae025e19d2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a4134095fe5465f33f87cd739158d2ba
SHA1ef43f701ec45ad914532f9b9172dad2e1bae5fd4
SHA25652f9463c017f9f15795530039bb629640ae41e0829c09ed9cbdd14c28694df01
SHA5120ac8fd51ea83612c3ce1fc7d27739f9edd838b50641f260a0ee5268d4f410542655660d1708e80ed79dd1fb7f6207bc2698cc7afea5d136bb26d15f018ecbc99
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Filesize
4.1MB
MD5809d48296919decb9e35f37b81569f62
SHA12f0f4c33547ec7f403cbbe7eb58a0fabc28b5ead
SHA256b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6
SHA51205157c49a30084d497d01820c53f2b252931ea2f5a30a24424274bf94d787e93868132be78b0295006c3a8a3aadd7141b43769dd2aab4f1866a730cb1405af9b
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec