Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
20-05-2024 04:46
Static task
static1
Behavioral task
behavioral1
Sample
58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe
Resource
win10v2004-20240508-en
General
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Target
58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe
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Size
4.1MB
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MD5
b2373e36467f1af28c33cc1d9bf7bfe3
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SHA1
72c4e7a9c41c07ff2c2cedbab9cd344160ead3d8
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SHA256
58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd
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SHA512
fe917a13107aee2a1c304d0f7af43e3d6d21d0a3665151201c5a8ee349f6c127a6ff9839af19c596697f6e5f6d1a9c13aa7f56e08ee08dc8c7fc2371d1b30b8d
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SSDEEP
98304:vquwTfmIkbquibhaubey8xw4weLmAcL8k4+6XNB3Rebmbqb0O:ALmIkbquibpii2yAk4+2fEKmbh
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/4080-2-0x0000000002E40000-0x000000000372B000-memory.dmp family_glupteba behavioral2/memory/4080-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4080-52-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4080-53-0x0000000002E40000-0x000000000372B000-memory.dmp family_glupteba behavioral2/memory/3944-55-0x0000000002A70000-0x0000000002E74000-memory.dmp family_glupteba behavioral2/memory/3944-127-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4348-206-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4348-216-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4348-217-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4348-219-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4348-221-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4348-223-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4348-225-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4348-227-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4348-229-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4348-231-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4348-233-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4348-235-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4348-237-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 2608 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 4348 csrss.exe 3276 injector.exe 4136 windefender.exe 2132 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/4136-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2132-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4136-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2132-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2132-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
csrss.exe58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3062789476-783164490-2318012559-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-3062789476-783164490-2318012559-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.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 opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe 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:
58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe -
Drops file in Windows directory 4 IoCs
Processes:
58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.execsrss.exedescription ioc process File created C:\Windows\rss\csrss.exe 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 2312 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 4936 powershell.exe 4144 powershell.exe 1160 powershell.exe 4356 powershell.exe 4796 powershell.exe 1436 powershell.exe 2496 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 1784 schtasks.exe 4856 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exepowershell.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.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\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-771 = "Montevideo 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\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1471 = "Magadan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA 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\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar 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" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.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,-2452 = "Saint Pierre Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.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,-449 = "Azerbaijan Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-722 = "Central Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exepowershell.exe58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4936 powershell.exe 4936 powershell.exe 4080 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe 4080 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe 4144 powershell.exe 4144 powershell.exe 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe 1160 powershell.exe 1160 powershell.exe 4356 powershell.exe 4356 powershell.exe 4796 powershell.exe 4796 powershell.exe 1436 powershell.exe 1436 powershell.exe 2496 powershell.exe 2496 powershell.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 4348 csrss.exe 4348 csrss.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 4348 csrss.exe 4348 csrss.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 4348 csrss.exe 3276 injector.exe 4348 csrss.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 4936 powershell.exe Token: SeDebugPrivilege 4080 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Token: SeImpersonatePrivilege 4080 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe Token: SeDebugPrivilege 4144 powershell.exe Token: SeDebugPrivilege 1160 powershell.exe Token: SeDebugPrivilege 4356 powershell.exe Token: SeDebugPrivilege 4796 powershell.exe Token: SeDebugPrivilege 1436 powershell.exe Token: SeDebugPrivilege 2496 powershell.exe Token: SeSystemEnvironmentPrivilege 4348 csrss.exe Token: SeSecurityPrivilege 2312 sc.exe Token: SeSecurityPrivilege 2312 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4080 wrote to memory of 4936 4080 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe powershell.exe PID 4080 wrote to memory of 4936 4080 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe powershell.exe PID 4080 wrote to memory of 4936 4080 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe powershell.exe PID 3944 wrote to memory of 4144 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe powershell.exe PID 3944 wrote to memory of 4144 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe powershell.exe PID 3944 wrote to memory of 4144 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe powershell.exe PID 3944 wrote to memory of 3704 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe cmd.exe PID 3944 wrote to memory of 3704 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe cmd.exe PID 3704 wrote to memory of 2608 3704 cmd.exe netsh.exe PID 3704 wrote to memory of 2608 3704 cmd.exe netsh.exe PID 3944 wrote to memory of 1160 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe powershell.exe PID 3944 wrote to memory of 1160 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe powershell.exe PID 3944 wrote to memory of 1160 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe powershell.exe PID 3944 wrote to memory of 4356 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe powershell.exe PID 3944 wrote to memory of 4356 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe powershell.exe PID 3944 wrote to memory of 4356 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe powershell.exe PID 3944 wrote to memory of 4348 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe csrss.exe PID 3944 wrote to memory of 4348 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe csrss.exe PID 3944 wrote to memory of 4348 3944 58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe csrss.exe PID 4348 wrote to memory of 4796 4348 csrss.exe powershell.exe PID 4348 wrote to memory of 4796 4348 csrss.exe powershell.exe PID 4348 wrote to memory of 4796 4348 csrss.exe powershell.exe PID 4348 wrote to memory of 1436 4348 csrss.exe powershell.exe PID 4348 wrote to memory of 1436 4348 csrss.exe powershell.exe PID 4348 wrote to memory of 1436 4348 csrss.exe powershell.exe PID 4348 wrote to memory of 2496 4348 csrss.exe powershell.exe PID 4348 wrote to memory of 2496 4348 csrss.exe powershell.exe PID 4348 wrote to memory of 2496 4348 csrss.exe powershell.exe PID 4348 wrote to memory of 3276 4348 csrss.exe injector.exe PID 4348 wrote to memory of 3276 4348 csrss.exe injector.exe PID 4136 wrote to memory of 2596 4136 windefender.exe cmd.exe PID 4136 wrote to memory of 2596 4136 windefender.exe cmd.exe PID 4136 wrote to memory of 2596 4136 windefender.exe cmd.exe PID 2596 wrote to memory of 2312 2596 cmd.exe sc.exe PID 2596 wrote to memory of 2312 2596 cmd.exe sc.exe PID 2596 wrote to memory of 2312 2596 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\58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe"C:\Users\Admin\AppData\Local\Temp\58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4080 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4936 -
C:\Users\Admin\AppData\Local\Temp\58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.exe"C:\Users\Admin\AppData\Local\Temp\58b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd.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:3944 -
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:4144 -
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:3704 -
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:2608 -
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:1160 -
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:4356 -
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:4348 -
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:4796 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:1784 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3544
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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:1436 -
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:2496 -
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:3276 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4856 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4136 -
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:2596 -
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:2312
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2132
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
MD57cff6f3f295a715618ce4a7b3761bed5
SHA1d10335745a7b6f5f01e08bbb31f90f51f15bd246
SHA25632b6305c8af02238931b175c4cee303861cb4fcacb88c854bf0ed9dfe73171a5
SHA5123263a8e1537499037b4fcd939d331ffa86d98a594e8f624405755b1f5a83f95a6653864fa71960c8aa766af4f499e2f52c127c5f9b6bc671495effe0243469e7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51e3c4aa85e6f663943e60330d2b2fbaf
SHA169c07306028ce1a23f4eb431f6805feedd7dd5bc
SHA2560f897cd557d543c7b387ba6025a4c38f598669a834e3ad7ce551373c21044579
SHA51298ab97e88a5789a7f5dbcf8bb8920b4b304b3380debbb188619e5b7236b12981684ed6c917ca65411f0a88211bccb163655810c3702eb8292b945b9998338f8f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ae2f3692be810451592b8a24f2d0db93
SHA1458b3a5dfe31c7a433311b4110c62c47ef76b9bc
SHA256cba95fb6a5e8fa305227f328f071efe99273b62e20a8f4e78f9f183b77625a18
SHA5123fa368780113bca82b71af143abf8a640dbee6f00afccc3a476656d61676ff70c64d6f649cb67cd3f4c713e8b5ecb7a7d564a3df72a271c1eb9d5dbfff0a90b1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD506dd72bba09df5e84604051d78b7089c
SHA1dc461414bc482256df1f8c000c940a86d917b4aa
SHA256f286b77a49b6bb384fa2ad560c0675d7778a6f7a9f7c441cb33ad08d978df86c
SHA512e1e1de2f25268cb070ee441c5974c937fa5db4b8c63aafba59812e54664f8be9b7fd7fee73a7c3063855a94e6354ae23612ae7bfb191144a811b9cc68545430d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55cb333e0ffcb756cb70aa7c17978b5be
SHA1220fd2d242cdaaf91779d2b4615c6586100e2b89
SHA256ed7decb1a46f1cdd2c932a681fa5b60109f3b72b568471c9c96da81582136acb
SHA5123bad1e2c5daf2d7bb3c94c29993f51f5b4a2318698d3b4e04cc7d66d0bd89bbe275cb1c9d139f168626f73d25a67cc730b0a8ec06276517c3c125658ee39f260
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Filesize
4.1MB
MD5b2373e36467f1af28c33cc1d9bf7bfe3
SHA172c4e7a9c41c07ff2c2cedbab9cd344160ead3d8
SHA25658b4f0839d798e4131c0abbd4a8b0591eea5a60303f909a7843be22d01dc7fbd
SHA512fe917a13107aee2a1c304d0f7af43e3d6d21d0a3665151201c5a8ee349f6c127a6ff9839af19c596697f6e5f6d1a9c13aa7f56e08ee08dc8c7fc2371d1b30b8d
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec