Analysis
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max time kernel
149s -
max time network
142s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
27-04-2024 22:25
Static task
static1
Behavioral task
behavioral1
Sample
185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe
Resource
win10v2004-20240426-en
General
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Target
185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe
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Size
4.2MB
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MD5
8e5c6d736faa3afaeb3ec4362a7b763e
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SHA1
0b3a10e74e1a0f2b0a0e701782a325842145b961
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SHA256
185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5
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SHA512
e33c6cb3cc1348827e17d12ca2e492472e94cf3a38e7bf4c4737ec0b2abda4b27dbc4acbd3f12d7654551d4bb173334054394e6ff88ae0fbd200057e49b0c322
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SSDEEP
98304:3amOmyh13YwSD+iffg9rOMOczucEEdNxQlfwo87Elwi0PG16:3Ty8Jy4o9ecZxQhwo8IinPG16
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/4488-2-0x0000000003F20000-0x000000000480B000-memory.dmp family_glupteba behavioral2/memory/4488-3-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/4488-88-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/4488-120-0x0000000003F20000-0x000000000480B000-memory.dmp family_glupteba behavioral2/memory/572-147-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2172-151-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2172-199-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2172-208-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2172-211-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2172-214-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2172-217-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2172-220-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2172-223-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2172-226-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2172-229-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2172-232-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2172-235-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2172-238-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 1504 netsh.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid process 2172 csrss.exe 776 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\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 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 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 -
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:
185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe -
Drops file in Windows directory 2 IoCs
Processes:
185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exedescription ioc process File opened for modification C:\Windows\rss 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe File created C:\Windows\rss\csrss.exe 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.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 692 schtasks.exe 2628 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exe185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.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,-452 = "Caucasus Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.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\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.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\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.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,-2141 = "Transbaikal Daylight Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.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" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs 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,-181 = "Mountain Daylight Time (Mexico)" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.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\IntranetName = "1" powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exepowershell.exe185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4532 powershell.exe 4532 powershell.exe 4488 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe 4488 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe 4492 powershell.exe 4492 powershell.exe 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe 2368 powershell.exe 2368 powershell.exe 752 powershell.exe 752 powershell.exe 3044 powershell.exe 3044 powershell.exe 832 powershell.exe 832 powershell.exe 2556 powershell.exe 2556 powershell.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 2172 csrss.exe 2172 csrss.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 2172 csrss.exe 2172 csrss.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe 776 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
powershell.exe185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exedescription pid process Token: SeDebugPrivilege 4532 powershell.exe Token: SeDebugPrivilege 4488 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Token: SeImpersonatePrivilege 4488 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe Token: SeDebugPrivilege 4492 powershell.exe Token: SeDebugPrivilege 2368 powershell.exe Token: SeDebugPrivilege 752 powershell.exe Token: SeDebugPrivilege 3044 powershell.exe Token: SeDebugPrivilege 832 powershell.exe Token: SeDebugPrivilege 2556 powershell.exe Token: SeSystemEnvironmentPrivilege 2172 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.execmd.execsrss.exedescription pid process target process PID 4488 wrote to memory of 4532 4488 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe powershell.exe PID 4488 wrote to memory of 4532 4488 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe powershell.exe PID 4488 wrote to memory of 4532 4488 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe powershell.exe PID 572 wrote to memory of 4492 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe powershell.exe PID 572 wrote to memory of 4492 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe powershell.exe PID 572 wrote to memory of 4492 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe powershell.exe PID 572 wrote to memory of 1728 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe cmd.exe PID 572 wrote to memory of 1728 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe cmd.exe PID 1728 wrote to memory of 1504 1728 cmd.exe netsh.exe PID 1728 wrote to memory of 1504 1728 cmd.exe netsh.exe PID 572 wrote to memory of 2368 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe powershell.exe PID 572 wrote to memory of 2368 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe powershell.exe PID 572 wrote to memory of 2368 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe powershell.exe PID 572 wrote to memory of 752 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe powershell.exe PID 572 wrote to memory of 752 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe powershell.exe PID 572 wrote to memory of 752 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe powershell.exe PID 572 wrote to memory of 2172 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe csrss.exe PID 572 wrote to memory of 2172 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe csrss.exe PID 572 wrote to memory of 2172 572 185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe csrss.exe PID 2172 wrote to memory of 3044 2172 csrss.exe powershell.exe PID 2172 wrote to memory of 3044 2172 csrss.exe powershell.exe PID 2172 wrote to memory of 3044 2172 csrss.exe powershell.exe PID 2172 wrote to memory of 832 2172 csrss.exe powershell.exe PID 2172 wrote to memory of 832 2172 csrss.exe powershell.exe PID 2172 wrote to memory of 832 2172 csrss.exe powershell.exe PID 2172 wrote to memory of 2556 2172 csrss.exe powershell.exe PID 2172 wrote to memory of 2556 2172 csrss.exe powershell.exe PID 2172 wrote to memory of 2556 2172 csrss.exe powershell.exe PID 2172 wrote to memory of 776 2172 csrss.exe injector.exe PID 2172 wrote to memory of 776 2172 csrss.exe injector.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\185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe"C:\Users\Admin\AppData\Local\Temp\185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4488 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4532
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C:\Users\Admin\AppData\Local\Temp\185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.exe"C:\Users\Admin\AppData\Local\Temp\185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5.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:572 -
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:4492
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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:1728 -
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:1504
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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:2368
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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:752
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2172 -
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:3044
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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:692
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1736
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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:832
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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:2556
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeC:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:776
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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:2628
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59a0e18049cdc65c1677e4efdcb2b16c0
SHA1ff543aafa209cfee05e0e17eb82794b2fe3c673c
SHA256acc5db40246f04e562b62afa389667471108be5ab573a760a8c8a1e0a2150fb7
SHA51221a936c6fa5611f309e9df70e91058c62893161b1f62cc3430f1cf467b38a30a9f2bf4acc16904d67bb9ddf2a99ba4129353501e09c0e9ba0e4bcc2e31453de9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59fa08a8f23f9b833114268689678f769
SHA1f248addd01d9f7fd24f9bc002e03a476a132817b
SHA2568ace73c1aec9cda1eefd9c190891f57316f9773fdf432dc0eae112f13d2c9109
SHA512fc0ec8fc53048865f69102ed14ed9c8b19776c3913c2c371a793ba99dea1b691cacbf3f0cc4b507b11f17b5483f893a4e8b57f888c5a74d498c11781b4d8811d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD561cefafc19d3265e01170157563d8f83
SHA1149c292f56fef54701498d5874326af952c1a2f2
SHA25612a30d3c9f512fdd3c684db01dcadfe53d74ad5c2ee04f8bc0767d47e87e03a2
SHA512639e57c6501daccc044c5ed9d0c536c0b7aa63c43ee7b777b9bdb08479ee251b29dbcf698a4a2e653735b2c97bf6f3b038caf8326d34c8d9789a67f6c40e0ef5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD522126bcf12b71481422c8c6b0c93e690
SHA1f41a8ac36252a8ff8abd32f34a30dd8ad49f3bba
SHA2562a70fd5af107492be8352f83dee9477ef84d2642a5c15050e2e821b37893dc21
SHA512814e55834e6cf9869a5f1a59a08699c244f7c907c43a30f7a174f6c21be7a22e8afead10013b53b0eab6f4675f78368899bb3d44d680d34b04484bfbe58adff8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d2eee75f025afb1aae2de0b602dd41ec
SHA1b25f1049eb2a8599eb9fda7c16835c10a3189c72
SHA256d71e80613e653abe28dbae7e0e02e05136b8cbeb6aec96406834b1083f6d6b88
SHA5125b1b9c3cb5f5e5c856f75b4e121b0b27790d158568ce894ecb7397675b4ded1838ee3adec36b0f510a8d4b7459e2a566263f621229f1aca8912e8951b18914cd
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Filesize
4.2MB
MD58e5c6d736faa3afaeb3ec4362a7b763e
SHA10b3a10e74e1a0f2b0a0e701782a325842145b961
SHA256185d9c8b9a62d60137a95278bcb1d5170001a6f2075358916ac4228d260f19f5
SHA512e33c6cb3cc1348827e17d12ca2e492472e94cf3a38e7bf4c4737ec0b2abda4b27dbc4acbd3f12d7654551d4bb173334054394e6ff88ae0fbd200057e49b0c322