Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 11:35
Static task
static1
Behavioral task
behavioral1
Sample
3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe
Resource
win10v2004-20240426-en
General
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Target
3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe
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Size
4.1MB
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MD5
101d98cc0ec6265841faf046352bc801
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SHA1
d12c29e4cbee86f5e472482695f299419974c6bc
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SHA256
3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c
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SHA512
58e31a137c78c617c7b64ede12472cee9c127792e75f44ad8ddda11302fe503c01837afdc5bffef32498f3df63d3b1134aad4b0de17635003d2365ace73eab10
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SSDEEP
98304:ek/C6baF9NNXYvR+SQPyohxfWe3/GY9pAEj66:en6bazjovoyoHfX3/GYHV
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/4736-2-0x0000000004450000-0x0000000004D3B000-memory.dmp family_glupteba behavioral1/memory/4736-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4736-57-0x0000000004450000-0x0000000004D3B000-memory.dmp family_glupteba behavioral1/memory/4736-58-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4736-56-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/1856-137-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/1724-220-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/1724-229-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/1724-231-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/1724-233-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/1724-235-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/1724-237-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/1724-239-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/1724-241-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/1724-243-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/1724-245-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/1724-247-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/1724-249-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/1724-251-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 3244 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 1724 csrss.exe 5036 injector.exe 2400 windefender.exe 4844 windefender.exe -
Processes:
resource yara_rule behavioral1/files/0x0012000000023484-223.dat upx behavioral1/memory/2400-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4844-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2400-228-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4844-230-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4844-234-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Set value (str) \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\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\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.
Processes:
3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe -
Drops file in Windows directory 4 IoCs
Processes:
3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.execsrss.exedescription ioc Process File created C:\Windows\rss\csrss.exe 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.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 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid Process 648 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4980 powershell.exe 1728 powershell.exe 2472 powershell.exe 944 powershell.exe 2092 powershell.exe 3300 powershell.exe 4544 powershell.exe -
Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target Process procid_target 524 4736 WerFault.exe 82 4360 1856 WerFault.exe 91 -
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 4336 schtasks.exe 4860 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exepowershell.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-362 = "GTB Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 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,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-511 = "Central Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2631 = "Norfolk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1502 = "Turkey Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" 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,-1021 = "Bangladesh Daylight Time" 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exepowershell.exe3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 2092 powershell.exe 2092 powershell.exe 4736 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 4736 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 3300 powershell.exe 3300 powershell.exe 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 4544 powershell.exe 4544 powershell.exe 4980 powershell.exe 4980 powershell.exe 1728 powershell.exe 1728 powershell.exe 1728 powershell.exe 2472 powershell.exe 2472 powershell.exe 2472 powershell.exe 944 powershell.exe 944 powershell.exe 944 powershell.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 1724 csrss.exe 1724 csrss.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 1724 csrss.exe 1724 csrss.exe 5036 injector.exe 5036 injector.exe 1724 csrss.exe 1724 csrss.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe 5036 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 2092 powershell.exe Token: SeDebugPrivilege 4736 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Token: SeImpersonatePrivilege 4736 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe Token: SeDebugPrivilege 3300 powershell.exe Token: SeDebugPrivilege 4544 powershell.exe Token: SeDebugPrivilege 4980 powershell.exe Token: SeDebugPrivilege 1728 powershell.exe Token: SeDebugPrivilege 2472 powershell.exe Token: SeDebugPrivilege 944 powershell.exe Token: SeSystemEnvironmentPrivilege 1724 csrss.exe Token: SeSecurityPrivilege 648 sc.exe Token: SeSecurityPrivilege 648 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 4736 wrote to memory of 2092 4736 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 86 PID 4736 wrote to memory of 2092 4736 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 86 PID 4736 wrote to memory of 2092 4736 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 86 PID 1856 wrote to memory of 3300 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 95 PID 1856 wrote to memory of 3300 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 95 PID 1856 wrote to memory of 3300 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 95 PID 1856 wrote to memory of 1948 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 102 PID 1856 wrote to memory of 1948 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 102 PID 1948 wrote to memory of 3244 1948 cmd.exe 104 PID 1948 wrote to memory of 3244 1948 cmd.exe 104 PID 1856 wrote to memory of 4544 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 105 PID 1856 wrote to memory of 4544 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 105 PID 1856 wrote to memory of 4544 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 105 PID 1856 wrote to memory of 4980 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 107 PID 1856 wrote to memory of 4980 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 107 PID 1856 wrote to memory of 4980 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 107 PID 1856 wrote to memory of 1724 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 111 PID 1856 wrote to memory of 1724 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 111 PID 1856 wrote to memory of 1724 1856 3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe 111 PID 1724 wrote to memory of 1728 1724 csrss.exe 114 PID 1724 wrote to memory of 1728 1724 csrss.exe 114 PID 1724 wrote to memory of 1728 1724 csrss.exe 114 PID 1724 wrote to memory of 2472 1724 csrss.exe 120 PID 1724 wrote to memory of 2472 1724 csrss.exe 120 PID 1724 wrote to memory of 2472 1724 csrss.exe 120 PID 1724 wrote to memory of 944 1724 csrss.exe 122 PID 1724 wrote to memory of 944 1724 csrss.exe 122 PID 1724 wrote to memory of 944 1724 csrss.exe 122 PID 1724 wrote to memory of 5036 1724 csrss.exe 124 PID 1724 wrote to memory of 5036 1724 csrss.exe 124 PID 2400 wrote to memory of 5004 2400 windefender.exe 130 PID 2400 wrote to memory of 5004 2400 windefender.exe 130 PID 2400 wrote to memory of 5004 2400 windefender.exe 130 PID 5004 wrote to memory of 648 5004 cmd.exe 131 PID 5004 wrote to memory of 648 5004 cmd.exe 131 PID 5004 wrote to memory of 648 5004 cmd.exe 131 -
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\3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe"C:\Users\Admin\AppData\Local\Temp\3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4736 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2092
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C:\Users\Admin\AppData\Local\Temp\3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.exe"C:\Users\Admin\AppData\Local\Temp\3c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c.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:1856 -
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:3300
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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:1948 -
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:3244
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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:4544
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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:4980
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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:1724 -
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:1728
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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:4336
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3572
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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:2472
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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:944
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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:5036
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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:4860
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2400 -
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:5004 -
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:648
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1856 -s 8963⤵
- Program crash
PID:4360
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4736 -s 7602⤵
- Program crash
PID:524
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4736 -ip 47361⤵PID:3676
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1856 -ip 18561⤵PID:4208
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4844
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5763e3293d2e709de486fd20cd478c893
SHA1dc41f9b7754e45d7d30093c2d564bfa3460ddc48
SHA256566fd5033baf4547712a675c192aa3a412614de508d1ef535600b41eff24ef22
SHA512b309fbae6bd606ba7244cf9386af3601805adbc9f801102369f6648b98d5b8dc838fe4949fd97b139f620557ce0468ef31922a676ce2a8a980dddab49ceb55e3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5017ec854833d4ad74eae2c507d9f59dd
SHA1fec21faed1563f17f641f0b40836d0b35c83c605
SHA2568f97a6ab428ba36efbe348b6c1bbbf8b63d589281c8f7e1909e82754e81e3dcf
SHA512cb89c0abdb232f9642f1ec057a18b7a3dc99abf0b1859174f1c3503bd925e248f6a9acbbddae136b0a3c60f376131f51f2f8ba9d1f76fb599f6feb345df1c3bc
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d60e829b82bb987fe2cf53add3346ad8
SHA164b13b32d41e7cbb104c06a407da837acb4377c3
SHA256a6bafcbd47a07d1e7e9e3c656b7d157deca160429463ee62ff5b2851b695cc81
SHA5121f5366075c149bff77997a08d40a61303645756e5113b7f287f0d9f356e7f4cd294db6c50d79e38e0ad4c9f6e21ca7e4d966b815db63dda208a6c8fe48fb1196
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD543a9881d7a0a7d7d3ba3f479a622d29c
SHA1bef2cd839c1d6e406b15ee58e697b48723360277
SHA256bb3318bdf1db459153dadc6c413063217ce7d7c32a6d8b54b22ce95d0dfe4c07
SHA512354d2bc1f6e88047514e29713e177041c2642a8d64c64f94127a992eb0b6cd628fccf366ee5709ce838f564d94a82d9ec9edf1cf8536423e3464cb69dc197677
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD570abd24ddaffe4c425bbb55593f7a935
SHA1ee05478c723b52cf4b361cd9d4dedc13a2667ffb
SHA25678511437dfc2002e728de55749ca2cf018a3ea03f31b5a70eca24e37df254041
SHA512a73e9e00e571af4b079d708206573a66f5ebf3ae0b9bce6c941fc740c2855412aa16d1616567ee33aa29bab2bcd3321813704499cf2c8f7df0e124d1f1d98022
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Filesize
4.1MB
MD5101d98cc0ec6265841faf046352bc801
SHA1d12c29e4cbee86f5e472482695f299419974c6bc
SHA2563c3b300d6c2a97b2c54ed7e7304102cfd9aee91d31fea20503e04bb46b7b021c
SHA51258e31a137c78c617c7b64ede12472cee9c127792e75f44ad8ddda11302fe503c01837afdc5bffef32498f3df63d3b1134aad4b0de17635003d2365ace73eab10
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec