Analysis
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max time kernel
150s -
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 04:11
Static task
static1
Behavioral task
behavioral1
Sample
f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe
Resource
win10v2004-20240426-en
General
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Target
f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe
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Size
4.1MB
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MD5
5fe91888334e7f87e9fc44d33eaf9be0
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SHA1
cc472952110df8fc1a27f22f6d1ad3a073dfb568
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SHA256
f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed
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SHA512
52bd3104f5916e0fbba078278e46af0c9553f2d49fc6e09702c9f28d1c6274723a44fc77a37de4a998a34ecb3859127fe1506ef5de5aadaf8b6779d3a93ef933
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SSDEEP
98304:GQAQcsa3GhfWYEvpb4LdECaqY+VYhFzXw/u5g9cAd9nB:GQAQcDPYxuCJe7X5ghfB
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/4604-2-0x0000000004A50000-0x000000000533B000-memory.dmp family_glupteba behavioral2/memory/4604-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4604-62-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4604-89-0x0000000004A50000-0x000000000533B000-memory.dmp family_glupteba behavioral2/memory/4604-120-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4860-146-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4080-200-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4080-212-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4080-215-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4080-218-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4080-222-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4080-228-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4080-232-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4080-235-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4080-238-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4080-242-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4080-248-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4080-251-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4080-254-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3284 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 4080 csrss.exe 2764 injector.exe 3756 windefender.exe 4548 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/3756-205-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4548-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3756-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4548-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4548-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2994005945-4089876968-1367784197-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\S-1-5-21-2994005945-4089876968-1367784197-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe -
Drops file in Windows directory 4 IoCs
Processes:
f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.execsrss.exedescription ioc process File created C:\Windows\rss\csrss.exe f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.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 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 2428 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 4108 powershell.exe 1524 powershell.exe 2344 powershell.exe 988 powershell.exe 3528 powershell.exe 3324 powershell.exe 772 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 3776 schtasks.exe 408 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exewindefender.exef306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs 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\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2872 = "Magallanes Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\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\2a\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.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,-371 = "Jerusalem Daylight Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-32 = "Mid-Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.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\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3141 = "South Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.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,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exef306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exepowershell.exef306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 772 powershell.exe 772 powershell.exe 4604 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4604 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4108 powershell.exe 4108 powershell.exe 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 1524 powershell.exe 1524 powershell.exe 2344 powershell.exe 2344 powershell.exe 988 powershell.exe 988 powershell.exe 3528 powershell.exe 3528 powershell.exe 3324 powershell.exe 3324 powershell.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 4080 csrss.exe 4080 csrss.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 4080 csrss.exe 4080 csrss.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 4080 csrss.exe 4080 csrss.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe 2764 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exef306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 772 powershell.exe Token: SeDebugPrivilege 4604 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Token: SeImpersonatePrivilege 4604 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Token: SeDebugPrivilege 4108 powershell.exe Token: SeDebugPrivilege 1524 powershell.exe Token: SeDebugPrivilege 2344 powershell.exe Token: SeDebugPrivilege 988 powershell.exe Token: SeDebugPrivilege 3528 powershell.exe Token: SeDebugPrivilege 3324 powershell.exe Token: SeSystemEnvironmentPrivilege 4080 csrss.exe Token: SeSecurityPrivilege 2428 sc.exe Token: SeSecurityPrivilege 2428 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exef306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4604 wrote to memory of 772 4604 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4604 wrote to memory of 772 4604 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4604 wrote to memory of 772 4604 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4860 wrote to memory of 4108 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4860 wrote to memory of 4108 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4860 wrote to memory of 4108 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4860 wrote to memory of 660 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe cmd.exe PID 4860 wrote to memory of 660 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe cmd.exe PID 660 wrote to memory of 3284 660 cmd.exe netsh.exe PID 660 wrote to memory of 3284 660 cmd.exe netsh.exe PID 4860 wrote to memory of 1524 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4860 wrote to memory of 1524 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4860 wrote to memory of 1524 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4860 wrote to memory of 2344 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4860 wrote to memory of 2344 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4860 wrote to memory of 2344 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4860 wrote to memory of 4080 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe csrss.exe PID 4860 wrote to memory of 4080 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe csrss.exe PID 4860 wrote to memory of 4080 4860 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe csrss.exe PID 4080 wrote to memory of 988 4080 csrss.exe powershell.exe PID 4080 wrote to memory of 988 4080 csrss.exe powershell.exe PID 4080 wrote to memory of 988 4080 csrss.exe powershell.exe PID 4080 wrote to memory of 3528 4080 csrss.exe powershell.exe PID 4080 wrote to memory of 3528 4080 csrss.exe powershell.exe PID 4080 wrote to memory of 3528 4080 csrss.exe powershell.exe PID 4080 wrote to memory of 3324 4080 csrss.exe powershell.exe PID 4080 wrote to memory of 3324 4080 csrss.exe powershell.exe PID 4080 wrote to memory of 3324 4080 csrss.exe powershell.exe PID 4080 wrote to memory of 2764 4080 csrss.exe injector.exe PID 4080 wrote to memory of 2764 4080 csrss.exe injector.exe PID 3756 wrote to memory of 380 3756 windefender.exe cmd.exe PID 3756 wrote to memory of 380 3756 windefender.exe cmd.exe PID 3756 wrote to memory of 380 3756 windefender.exe cmd.exe PID 380 wrote to memory of 2428 380 cmd.exe sc.exe PID 380 wrote to memory of 2428 380 cmd.exe sc.exe PID 380 wrote to memory of 2428 380 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\f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe"C:\Users\Admin\AppData\Local\Temp\f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4604 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:772 -
C:\Users\Admin\AppData\Local\Temp\f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe"C:\Users\Admin\AppData\Local\Temp\f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.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:4860 -
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:4108 -
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:660 -
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:3284 -
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:1524 -
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:2344 -
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:4080 -
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:988 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3776 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4796
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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:3528 -
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:3324 -
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:2764 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:408 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3756 -
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:380 -
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:2428
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4548
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
MD555785f62cf6714ec543e353cf59ca5e9
SHA113a1552e71daf345842737bc12601c605fd5150e
SHA2564f823e78616edb7feb5d1ed613edb4bfeba2f0023d82949bbfc891ec0618c655
SHA5129e893fa6c518b70de380d865b885417731e28a306ddaf89b1fbfdbb40cb05512a506eb19aead8763fca16d0556a2ddb06ffe2f0158fca6c8c57032287df56d76
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5373ce3586405f1dc89afd9f4983cb9c6
SHA14a9f15cf6923631fd2b9d47d90cce1ba7c7c0f78
SHA25602c5fee78eae79fc02aba30ae1789b70f6200d14c549084e9cc22b5fa2d9283a
SHA512d70750c24c75ff71416b8886d5e9fa71b2eea3ec204cfa23db65f61c9707d064685e8ec1fd5a84b5f82877ed5822ed2e3adb7d691409d8bdfb4aca665236da3b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD553c8a2b2277b6569f3e8c00dacdd3da1
SHA147fae97d9bf75a12ae1cc420fdb2b76127acbbae
SHA2567466704fd06b954a5baccc4624415a43d530448546b53e6e66c995261edfb4bd
SHA512f95b7005573cf90bcd13869e738be96cb5b50765b5ddd733f13ab939016bba10052fa2cd1356719de8a3f92b3a01703412d4c7882eb2d91f777273da131e9922
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b4a1fe7f639df212e43544f6f6d65b85
SHA142b7fe158cc12a48778c4918b43e3933f33549f2
SHA256978dd428121e25411db6d633595aa26b77d5120b8fdc2b18b504e4fc6283b84a
SHA5121acfbe541e605fd1440aa917b13ef6ccaaf688d958f1bad2d258ec87f26c2509b32053472c7c6e0dade2b898b7e75798574fa4f3e05ff9419ddd886a3639e943
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59383110f85efad34eff180eff7d507aa
SHA179e255703549c8605d970328a8f9edb58599bf7b
SHA2566c492fb49d0b39084e5e4ed9bf2313d894d427778d681a64a72130a1e3539149
SHA5127497be27a63f051312b2add211c2f24f474150878775d0f033373a2090c0d5f6e6a275897dc2d75bf33c6308f6c39ee8dffcc4f1ccb0cfc862a38d8cafee746a
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Filesize
4.1MB
MD55fe91888334e7f87e9fc44d33eaf9be0
SHA1cc472952110df8fc1a27f22f6d1ad3a073dfb568
SHA256f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed
SHA51252bd3104f5916e0fbba078278e46af0c9553f2d49fc6e09702c9f28d1c6274723a44fc77a37de4a998a34ecb3859127fe1506ef5de5aadaf8b6779d3a93ef933
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec