Analysis
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max time kernel
150s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
15/04/2024, 15:25
Static task
static1
Behavioral task
behavioral1
Sample
c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe
Resource
win10v2004-20240412-en
General
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Target
c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe
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Size
4.2MB
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MD5
55276425408b8b4398f5c710fc283b52
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SHA1
2fd9ba2f237f5c022925abab22e05a5cfd0bf1fb
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SHA256
c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9
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SHA512
4c53243289dbfeda0e4faa799619ac0742495154a13bba1ae5ff02371fd07459ee4056c82e3236bde8f6305467b131a340bb6742ea3f3fc7c8e7466c5e3d2d6d
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SSDEEP
98304:axHJmYSDqVSQeMaGGeRVYv8zXkXo8rHLtDyi48:uUMVyMMeRP7kXhr0i48
Malware Config
Signatures
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Glupteba payload 22 IoCs
resource yara_rule behavioral1/memory/3804-2-0x0000000005310000-0x0000000005BFB000-memory.dmp family_glupteba behavioral1/memory/3804-3-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba behavioral1/memory/3804-25-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba behavioral1/memory/3804-50-0x0000000005310000-0x0000000005BFB000-memory.dmp family_glupteba behavioral1/memory/3804-57-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba behavioral1/memory/3704-60-0x0000000005170000-0x0000000005A5B000-memory.dmp family_glupteba behavioral1/memory/3704-61-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba behavioral1/memory/3704-94-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba behavioral1/memory/3704-110-0x0000000004D60000-0x0000000005161000-memory.dmp family_glupteba behavioral1/memory/3704-123-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba behavioral1/memory/3704-127-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba behavioral1/memory/3704-159-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba behavioral1/memory/3568-226-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba behavioral1/memory/3568-263-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba behavioral1/memory/3568-271-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba behavioral1/memory/3568-273-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba behavioral1/memory/3568-275-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba behavioral1/memory/3568-277-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba behavioral1/memory/3568-279-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba behavioral1/memory/3568-281-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba behavioral1/memory/3568-283-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba behavioral1/memory/3568-285-0x0000000000400000-0x000000000310D000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3604 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3568 csrss.exe 5116 injector.exe 2652 windefender.exe 4116 windefender.exe -
resource yara_rule behavioral1/files/0x000800000002340f-266.dat upx behavioral1/memory/2652-270-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4116-272-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4116-276-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4092317236-2027488869-1227795436-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-4092317236-2027488869-1227795436-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.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.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process 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 File created 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 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe File created C:\Windows\rss\csrss.exe c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4612 sc.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 488 3804 WerFault.exe 84 3900 3704 WerFault.exe 95 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1732 schtasks.exe 5036 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\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\26\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\26\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-241 = "Samoa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-511 = "Central Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-251 = "Dateline Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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\26\52C64B7E\@tzres.dll,-721 = "Central Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1804 powershell.exe 1804 powershell.exe 3804 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 3804 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 4884 powershell.exe 4884 powershell.exe 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 4032 powershell.exe 4032 powershell.exe 4800 powershell.exe 4800 powershell.exe 2396 powershell.exe 2396 powershell.exe 4508 powershell.exe 4508 powershell.exe 656 powershell.exe 656 powershell.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 3568 csrss.exe 3568 csrss.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 3568 csrss.exe 3568 csrss.exe 5116 injector.exe 5116 injector.exe 3568 csrss.exe 3568 csrss.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1804 powershell.exe Token: SeDebugPrivilege 3804 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Token: SeImpersonatePrivilege 3804 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe Token: SeDebugPrivilege 4884 powershell.exe Token: SeDebugPrivilege 4032 powershell.exe Token: SeDebugPrivilege 4800 powershell.exe Token: SeDebugPrivilege 2396 powershell.exe Token: SeDebugPrivilege 4508 powershell.exe Token: SeDebugPrivilege 656 powershell.exe Token: SeSystemEnvironmentPrivilege 3568 csrss.exe Token: SeSecurityPrivilege 4612 sc.exe Token: SeSecurityPrivilege 4612 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3804 wrote to memory of 1804 3804 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 91 PID 3804 wrote to memory of 1804 3804 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 91 PID 3804 wrote to memory of 1804 3804 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 91 PID 3704 wrote to memory of 4884 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 98 PID 3704 wrote to memory of 4884 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 98 PID 3704 wrote to memory of 4884 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 98 PID 3704 wrote to memory of 4000 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 101 PID 3704 wrote to memory of 4000 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 101 PID 4000 wrote to memory of 3604 4000 cmd.exe 103 PID 4000 wrote to memory of 3604 4000 cmd.exe 103 PID 3704 wrote to memory of 4032 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 104 PID 3704 wrote to memory of 4032 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 104 PID 3704 wrote to memory of 4032 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 104 PID 3704 wrote to memory of 4800 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 106 PID 3704 wrote to memory of 4800 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 106 PID 3704 wrote to memory of 4800 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 106 PID 3704 wrote to memory of 3568 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 110 PID 3704 wrote to memory of 3568 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 110 PID 3704 wrote to memory of 3568 3704 c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe 110 PID 3568 wrote to memory of 2396 3568 csrss.exe 113 PID 3568 wrote to memory of 2396 3568 csrss.exe 113 PID 3568 wrote to memory of 2396 3568 csrss.exe 113 PID 3568 wrote to memory of 4508 3568 csrss.exe 119 PID 3568 wrote to memory of 4508 3568 csrss.exe 119 PID 3568 wrote to memory of 4508 3568 csrss.exe 119 PID 3568 wrote to memory of 656 3568 csrss.exe 121 PID 3568 wrote to memory of 656 3568 csrss.exe 121 PID 3568 wrote to memory of 656 3568 csrss.exe 121 PID 3568 wrote to memory of 5116 3568 csrss.exe 123 PID 3568 wrote to memory of 5116 3568 csrss.exe 123 PID 2652 wrote to memory of 2972 2652 windefender.exe 129 PID 2652 wrote to memory of 2972 2652 windefender.exe 129 PID 2652 wrote to memory of 2972 2652 windefender.exe 129 PID 2972 wrote to memory of 4612 2972 cmd.exe 130 PID 2972 wrote to memory of 4612 2972 cmd.exe 130 PID 2972 wrote to memory of 4612 2972 cmd.exe 130 -
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\c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe"C:\Users\Admin\AppData\Local\Temp\c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3804 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1804
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C:\Users\Admin\AppData\Local\Temp\c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.exe"C:\Users\Admin\AppData\Local\Temp\c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9.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:3704 -
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:4884
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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:4000 -
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:3604
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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:4032
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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:4800
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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.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3568 -
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:2396
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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:1732
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4940
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4508
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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:656
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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:5116
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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:5036
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2652 -
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:2972 -
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:4612
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3704 -s 8763⤵
- Program crash
PID:3900
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3804 -s 9162⤵
- Program crash
PID:488
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3804 -ip 38041⤵PID:4796
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3704 -ip 37041⤵PID:4124
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4116
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55d9719948fc9d4c286769fb98462c1e1
SHA17571e149501f3a7faa0f8063c8d82c2ab2bd6c9d
SHA256f715e26affe4421e31075ff78420700f188805f7ca9663bc2aea61dcc9276d9b
SHA512694ce20fdc5a3d42b62a5ee3b9e62a94d1cef7fe69e73b383cf7766c84a66431963820c110fb7778ee7370bb86e4faaa287c2ad2364d9ee03dc59f6958e48721
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d3c4b7a393093f046c52c4e396b7ec2d
SHA17e344b56b2773a792f42c8372be795034315885f
SHA256aa363aa445aa2da16e7fe52ea48dab854a097b7d27b2f5367c411403391fe099
SHA512328df56f96c2a4d514a1a65d2f9fd78d7e3ef4be7aac8a37c0a52128eb8972b6fe25dc1c3fc1fafda29ceaa56928a9f35d8cc05c6083ccdaad977b3ecf19190e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD580d76d5f06c27217a8ffabe224fdaec6
SHA1b3c2c9388ef5ff548d2c5de617586b218765d58d
SHA256071e44a903c13575606de3937cb52b3a46b88d4c1e970d0aca8309cf5d04a53f
SHA51209565fe35886b09e36ed001e7f32baccb0eb3fa39b24c4f7b47df20c820e0c549a4aeaef21c908a02ec780bfa934452e86f97bdf2d1484f176690530a02400ee
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD563bd360b8ccaf4c99382075808d3ec6a
SHA1c714c657bf973ca49c1b0b70fdd831e126a86692
SHA256c22ce30db54b29cd95c4b5a073757471fbd192d7979b41b87f2c230c332a54ef
SHA51235fac8a3aea69ecc25184b15ef99de47e00b44157e79518125076ef15bb44f72b2efccf8c8ab250f86ff3c5c29497477d0b49aef4825ac119c29e335a675e0d1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f7d0998df76af9988e06b24b119e201f
SHA1743344ebc14c66ee7569d81c30e23d12f621e9dc
SHA256d6478b27d09ad75868be35314bbe2c68877af6f67b7df9ca184437fe74acf91f
SHA512e254eb361eea3f11dd85437bd060c282c1fc9fae17113e3620026fd00a442f7acf17be7f5eb093113667c6111ee2fbcd616b3fa884456fa9d651d6f6b0ddd9ba
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Filesize
4.2MB
MD555276425408b8b4398f5c710fc283b52
SHA12fd9ba2f237f5c022925abab22e05a5cfd0bf1fb
SHA256c51934c26ab53f26f0c3d16e8c707d3f31a2092375a272f022bf85c83fe2ddd9
SHA5124c53243289dbfeda0e4faa799619ac0742495154a13bba1ae5ff02371fd07459ee4056c82e3236bde8f6305467b131a340bb6742ea3f3fc7c8e7466c5e3d2d6d
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec