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Analysis
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max time kernel
132s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
25/04/2024, 15:48
Static task
static1
Behavioral task
behavioral1
Sample
28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe
Resource
win10v2004-20240226-en
General
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Target
28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe
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Size
4.1MB
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MD5
31d17088ef03d6c5513fbf7d8cb310f8
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SHA1
3fc3147d7ec3850b04a86e096af35a7b5d4fbe64
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SHA256
28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8
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SHA512
5fb0ec09b35ce41d427a8ef4a0cfff8c5369ec48678ae3f0dd5745273275182cc4db79ddc386292090ab89bd80f60dcadb11580adb6c36da014d26ef8eed638d
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SSDEEP
98304:ixMvDlpZvb8ZK6Pm1OqC68DUZP3t+NAeQDD60jtf0ZJUQwpesMAQ2H/nDr:iOpbkK6P76wCP3t+NMK0jtGJUQwpe8nv
Malware Config
Signatures
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Glupteba payload 14 IoCs
resource yara_rule behavioral1/memory/468-2-0x0000000005140000-0x0000000005A2B000-memory.dmp family_glupteba behavioral1/memory/468-3-0x0000000000400000-0x0000000003005000-memory.dmp family_glupteba behavioral1/memory/468-10-0x0000000000400000-0x0000000003005000-memory.dmp family_glupteba behavioral1/memory/468-28-0x0000000005140000-0x0000000005A2B000-memory.dmp family_glupteba behavioral1/memory/468-47-0x0000000000400000-0x0000000003005000-memory.dmp family_glupteba behavioral1/memory/468-61-0x0000000000400000-0x0000000003005000-memory.dmp family_glupteba behavioral1/memory/2664-63-0x0000000000400000-0x0000000003005000-memory.dmp family_glupteba behavioral1/memory/2664-92-0x0000000000400000-0x0000000003005000-memory.dmp family_glupteba behavioral1/memory/2664-99-0x0000000003560000-0x0000000003961000-memory.dmp family_glupteba behavioral1/memory/2664-123-0x0000000000400000-0x0000000003005000-memory.dmp family_glupteba behavioral1/memory/2664-158-0x0000000000400000-0x0000000003005000-memory.dmp family_glupteba behavioral1/memory/2100-192-0x0000000000400000-0x0000000003005000-memory.dmp family_glupteba behavioral1/memory/2100-256-0x0000000000400000-0x0000000003005000-memory.dmp family_glupteba behavioral1/memory/2100-265-0x0000000000400000-0x0000000003005000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2296 netsh.exe -
Executes dropped EXE 1 IoCs
pid Process 2100 csrss.exe -
resource yara_rule behavioral1/files/0x0004000000000733-264.dat upx behavioral1/memory/1548-270-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.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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Drops file in System32 directory 6 IoCs
description ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe File created C:\Windows\rss\csrss.exe 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4396 sc.exe -
Program crash 4 IoCs
pid pid_target Process procid_target 5016 468 WerFault.exe 91 2180 468 WerFault.exe 91 3988 2664 WerFault.exe 103 4876 2664 WerFault.exe 103 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1132 schtasks.exe 2920 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe -
Suspicious behavior: EnumeratesProcesses 33 IoCs
pid Process 32 powershell.exe 32 powershell.exe 32 powershell.exe 468 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 468 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 4660 powershell.exe 4660 powershell.exe 4660 powershell.exe 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 1664 powershell.exe 1664 powershell.exe 1664 powershell.exe 212 powershell.exe 212 powershell.exe 212 powershell.exe 1340 powershell.exe 1340 powershell.exe 1340 powershell.exe 4120 powershell.exe 4120 powershell.exe 4120 powershell.exe 3160 powershell.exe 3160 powershell.exe 3160 powershell.exe -
Suspicious use of AdjustPrivilegeToken 9 IoCs
description pid Process Token: SeDebugPrivilege 32 powershell.exe Token: SeDebugPrivilege 468 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Token: SeImpersonatePrivilege 468 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe Token: SeDebugPrivilege 4660 powershell.exe Token: SeDebugPrivilege 1664 powershell.exe Token: SeDebugPrivilege 212 powershell.exe Token: SeDebugPrivilege 1340 powershell.exe Token: SeDebugPrivilege 4120 powershell.exe Token: SeDebugPrivilege 3160 powershell.exe -
Suspicious use of WriteProcessMemory 28 IoCs
description pid Process procid_target PID 468 wrote to memory of 32 468 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 93 PID 468 wrote to memory of 32 468 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 93 PID 468 wrote to memory of 32 468 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 93 PID 2664 wrote to memory of 4660 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 110 PID 2664 wrote to memory of 4660 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 110 PID 2664 wrote to memory of 4660 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 110 PID 2664 wrote to memory of 3556 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 112 PID 2664 wrote to memory of 3556 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 112 PID 3556 wrote to memory of 2296 3556 cmd.exe 114 PID 3556 wrote to memory of 2296 3556 cmd.exe 114 PID 2664 wrote to memory of 1664 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 115 PID 2664 wrote to memory of 1664 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 115 PID 2664 wrote to memory of 1664 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 115 PID 2664 wrote to memory of 212 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 117 PID 2664 wrote to memory of 212 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 117 PID 2664 wrote to memory of 212 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 117 PID 2664 wrote to memory of 2100 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 119 PID 2664 wrote to memory of 2100 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 119 PID 2664 wrote to memory of 2100 2664 28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe 119 PID 2100 wrote to memory of 1340 2100 csrss.exe 124 PID 2100 wrote to memory of 1340 2100 csrss.exe 124 PID 2100 wrote to memory of 1340 2100 csrss.exe 124 PID 2100 wrote to memory of 4120 2100 csrss.exe 130 PID 2100 wrote to memory of 4120 2100 csrss.exe 130 PID 2100 wrote to memory of 4120 2100 csrss.exe 130 PID 2100 wrote to memory of 3160 2100 csrss.exe 132 PID 2100 wrote to memory of 3160 2100 csrss.exe 132 PID 2100 wrote to memory of 3160 2100 csrss.exe 132 -
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\28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe"C:\Users\Admin\AppData\Local\Temp\28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:468 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:32
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C:\Users\Admin\AppData\Local\Temp\28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.exe"C:\Users\Admin\AppData\Local\Temp\28e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8.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:2664 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4660
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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:3556 -
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:2296
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1664
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:212
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2100 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1340
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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:2920
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:408
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4120
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3160
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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⤵PID:3168
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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:1132
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵PID:1548
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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⤵PID:4220
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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
PID:4396
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2664 -s 7603⤵
- Program crash
PID:3988
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2664 -s 7963⤵
- Program crash
PID:4876
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 468 -s 8602⤵
- Program crash
PID:5016
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 468 -s 9042⤵
- Program crash
PID:2180
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 468 -ip 4681⤵PID:2016
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 468 -ip 4681⤵PID:1688
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3696 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:81⤵PID:3076
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2664 -ip 26641⤵PID:3468
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2664 -ip 26641⤵PID:2672
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵PID:4960
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56356a706cf2fa7d8a1b7980a61205201
SHA1f8717c6bc70e6a06a8f7a14b223df7849b70e3f2
SHA25625e49275a7b447812e9dcc411e93b6ad7ad5711127d983b2a0ea0c3434490942
SHA5126b95bc8e6f1b2a8e64881ac6b94fa376b71a7a578f5bc2fb9d86f734bf8fcd46555a2593393aef891f4eaaec1a1c61a9cba9ccd0cf8da463c31ff80a657c8447
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a9fb4ccb07658acff84fea670d02fdc7
SHA1b7621106d600b022ed425103e1a33ca1217eb509
SHA2560e0074fc527882046e7010e1cf45fffea10d7c5de44d5905121629ecc428b3c6
SHA51297629658330777b0360c43e9d112cf01371d33a6bdb6c0794a9345f0bc7656c48a1b6c3a48d4cded1178de46f5679e3506a9ce76b07ba2480222950d27ed21c7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e94c146771bb625d750965dce410137e
SHA17c7171b800c734ca23a26cb1068f36734589b324
SHA256a37a7098de0f3007fb8217b55eb87a9c92ba26d54f53d70a667efbdaf082e77a
SHA5121a8fb3449a7337c09da63b587d0df54392f2bde350817c2665ccb0404c8218dc75350fcf82ef95efeefe1875242d2f6f24dea4902aa319dcd7e746f04e4e5346
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58f6d23eca0835e492f049a436862f435
SHA1917612ce9ef306c54939d91220a060d3c9e9652b
SHA2565e2bd001071a9dc2ca8e2d627fb74d1f680ee491bdc37022d81f793ec6deb256
SHA5123a70eba6fe330be21d764528d685c93f533b16f600d3542b8d05eb486b1a7680ad337c764398ac9cf2344ae22daad220581d858dcd9ade721bcc54578d2b2e8c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59f0f5cb9b8e2d500ce23c8a9586f06b2
SHA1a80dab871ac20036dd1bcb4ed8be5c2bae48177e
SHA256df395e4b2977f4495ffe2ef4dee5cad2ca58974a4903d6c89bacaeba54469d67
SHA512657173c36b3d4818dfe374be8b39a2bacf1504544630cc87390daddbbc9853af93f5d14a1d87079732879b00d8f10a00760e5b1aac076289f53eef07b5e6e630
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Filesize
4.1MB
MD531d17088ef03d6c5513fbf7d8cb310f8
SHA13fc3147d7ec3850b04a86e096af35a7b5d4fbe64
SHA25628e4a736a9983b42e063afff254532385000466b50968f29651fe432450cf5e8
SHA5125fb0ec09b35ce41d427a8ef4a0cfff8c5369ec48678ae3f0dd5745273275182cc4db79ddc386292090ab89bd80f60dcadb11580adb6c36da014d26ef8eed638d
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec