Analysis
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max time kernel
150s -
max time network
145s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-04-2024 09:23
Static task
static1
Behavioral task
behavioral1
Sample
ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe
Resource
win10v2004-20240412-en
General
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Target
ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe
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Size
4.2MB
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MD5
04c0284fe58351a338541e5e6cbba064
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SHA1
fa3fd26d02c3ccd68df60fe4a28ba69c626da566
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SHA256
ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb
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SHA512
9c3b51c762b65e9cff2f2e8d5d6a7a30b6b19b568dfe9d3dd2ea7ffcf0290f1cc6beab3e7a87c6dfab1bd2714fbff7d0a813b9f67c56444718d4b116f1a51585
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SSDEEP
98304:1IBNXOOfwLGhP6KRoj027D5HGyNAiNcOh9MZ99WifgA28ff94Zn:cjfa7j0YDNAHCC9Miz28ffE
Malware Config
Signatures
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Glupteba payload 21 IoCs
Processes:
resource yara_rule behavioral2/memory/840-2-0x0000000005390000-0x0000000005C7B000-memory.dmp family_glupteba behavioral2/memory/840-3-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/2132-53-0x0000000005250000-0x0000000005B3B000-memory.dmp family_glupteba behavioral2/memory/2132-55-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/840-67-0x0000000005390000-0x0000000005C7B000-memory.dmp family_glupteba behavioral2/memory/840-81-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/2132-137-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/2132-206-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/2332-240-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/2332-251-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/2332-255-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/2332-259-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/2332-263-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/2332-267-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/2332-271-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/2332-275-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/2332-279-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/2332-283-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/2332-287-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/2332-291-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/2332-295-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3572 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 2332 csrss.exe 3804 injector.exe 1920 windefender.exe 1164 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/1920-248-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1164-253-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1164-261-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe -
Drops file in Windows directory 4 IoCs
Processes:
ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.execsrss.exedescription ioc process File opened for modification C:\Windows\rss ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe File created C:\Windows\rss\csrss.exe ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.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.
Processes:
sc.exepid process 1264 sc.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 4652 schtasks.exe 660 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exeea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exewindefender.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-442 = "Arabian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.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\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.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,-12 = "Azores Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.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,-501 = "Nepal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.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\26\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.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\26\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-162 = "Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exepowershell.exeea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 424 powershell.exe 424 powershell.exe 840 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe 840 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe 1932 powershell.exe 1932 powershell.exe 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe 2872 powershell.exe 2872 powershell.exe 3752 powershell.exe 3752 powershell.exe 2820 powershell.exe 2820 powershell.exe 4276 powershell.exe 4276 powershell.exe 4796 powershell.exe 4796 powershell.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 2332 csrss.exe 2332 csrss.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 2332 csrss.exe 2332 csrss.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 2332 csrss.exe 2332 csrss.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe 3804 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exeea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 424 powershell.exe Token: SeDebugPrivilege 840 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Token: SeImpersonatePrivilege 840 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe Token: SeDebugPrivilege 1932 powershell.exe Token: SeDebugPrivilege 2872 powershell.exe Token: SeDebugPrivilege 3752 powershell.exe Token: SeDebugPrivilege 2820 powershell.exe Token: SeDebugPrivilege 4276 powershell.exe Token: SeDebugPrivilege 4796 powershell.exe Token: SeSystemEnvironmentPrivilege 2332 csrss.exe Token: SeSecurityPrivilege 1264 sc.exe Token: SeSecurityPrivilege 1264 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exeea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 840 wrote to memory of 424 840 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe powershell.exe PID 840 wrote to memory of 424 840 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe powershell.exe PID 840 wrote to memory of 424 840 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe powershell.exe PID 2132 wrote to memory of 1932 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe powershell.exe PID 2132 wrote to memory of 1932 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe powershell.exe PID 2132 wrote to memory of 1932 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe powershell.exe PID 2132 wrote to memory of 4192 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe cmd.exe PID 2132 wrote to memory of 4192 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe cmd.exe PID 4192 wrote to memory of 3572 4192 cmd.exe netsh.exe PID 4192 wrote to memory of 3572 4192 cmd.exe netsh.exe PID 2132 wrote to memory of 2872 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe powershell.exe PID 2132 wrote to memory of 2872 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe powershell.exe PID 2132 wrote to memory of 2872 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe powershell.exe PID 2132 wrote to memory of 3752 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe powershell.exe PID 2132 wrote to memory of 3752 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe powershell.exe PID 2132 wrote to memory of 3752 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe powershell.exe PID 2132 wrote to memory of 2332 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe csrss.exe PID 2132 wrote to memory of 2332 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe csrss.exe PID 2132 wrote to memory of 2332 2132 ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe csrss.exe PID 2332 wrote to memory of 2820 2332 csrss.exe powershell.exe PID 2332 wrote to memory of 2820 2332 csrss.exe powershell.exe PID 2332 wrote to memory of 2820 2332 csrss.exe powershell.exe PID 2332 wrote to memory of 4276 2332 csrss.exe powershell.exe PID 2332 wrote to memory of 4276 2332 csrss.exe powershell.exe PID 2332 wrote to memory of 4276 2332 csrss.exe powershell.exe PID 2332 wrote to memory of 4796 2332 csrss.exe powershell.exe PID 2332 wrote to memory of 4796 2332 csrss.exe powershell.exe PID 2332 wrote to memory of 4796 2332 csrss.exe powershell.exe PID 2332 wrote to memory of 3804 2332 csrss.exe injector.exe PID 2332 wrote to memory of 3804 2332 csrss.exe injector.exe PID 1920 wrote to memory of 728 1920 windefender.exe cmd.exe PID 1920 wrote to memory of 728 1920 windefender.exe cmd.exe PID 1920 wrote to memory of 728 1920 windefender.exe cmd.exe PID 728 wrote to memory of 1264 728 cmd.exe sc.exe PID 728 wrote to memory of 1264 728 cmd.exe sc.exe PID 728 wrote to memory of 1264 728 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\ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe"C:\Users\Admin\AppData\Local\Temp\ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:840 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:424
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C:\Users\Admin\AppData\Local\Temp\ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.exe"C:\Users\Admin\AppData\Local\Temp\ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb.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:2132 -
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:1932
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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:4192 -
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:3572
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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:2872
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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:3752
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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:2332 -
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:2820
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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:4652
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4584
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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:4276
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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:4796
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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:3804
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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:660
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1920 -
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:728 -
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:1264
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1164
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
MD596aee8102aefa4e3fad4d7432fde8755
SHA1b0718f5465709dceb163605cdb6e4f70a3386e20
SHA2569d098a3c2da53e1ea7a573c2cb8116165e111615e4cf1ebf3321fa5e1ba1cf1d
SHA5128861233a04caabfb44dfd51acd4b3f6d87c8a9ed49a450b43fe514ac7b0a306098bb48a6403c92a9651d97bbf8a244ad1ce03306d4b065bf38231989dc34af79
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b1cf5b62c9e144c4a5ce1fdacf880324
SHA1bcbe7d48115d47e07194f074293adb5fbb34b7ae
SHA25687549ba4ddbe4eeb8379b668843934c819012e692b7ddae03023c6050bbcde38
SHA5125f53e7667959c1253890d92bea6daa02b3b67543d27ea3dc9882998d2d55677e1b07f2d8cf3a6809f4158184ddc547117ede1e56f2f85ca76154fff750216df7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e164923ea6a2680a2a72f37aa2bdedf5
SHA1531f9a89a9db845b92ec236b97d336230c890bea
SHA256eec59b8062b5a8639afebea0e6d26eac2610eff2895f884082119993a8138462
SHA512c87cd0d35e44d3ca5017870bf6e581876e4628a2df22b6cb8b1a2b11ea8b5bc6e56f2bb98303753fbcfe435ec103be6ce4bac168d86ac5464a723d20a1da346d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ecd0be47ae8f7a609417fe5df9dca106
SHA1abb9dc440df5c5b41661c0a8123cd3976a4c0bc2
SHA25605d7c1de13bc7c4da42a340648cacad5e17b72bb23f0586cd61050594dc850e9
SHA512b41f767ce42efbd51f3a8dcc7ea5c022f77e9adb3f8626c4130808150cb884ec18315f8e8377899de6200da3daf882014277944e37933222d46f660940e85b9e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e7085c22e664fd442cde99c40ebb014c
SHA11ead0c1387dce5f11f82f6672f6f940dad3a45cd
SHA2563f9b606f4b81e46092cf6748d10c852fe6333b63f3b0c9492e1d6c228fff9cf0
SHA51228c1316c687025ecab36e6923efdf5b01dd216159a83369aee2b9f66890ed34264812c1522e0563302c3a1fdad0e2215c407483b21aaf4652ccbb20327bac64a
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Filesize
4.2MB
MD504c0284fe58351a338541e5e6cbba064
SHA1fa3fd26d02c3ccd68df60fe4a28ba69c626da566
SHA256ea5d8260b854616bf0ec45828e2c5a636338fc8c8f4023598913f7357909b5eb
SHA5129c3b51c762b65e9cff2f2e8d5d6a7a30b6b19b568dfe9d3dd2ea7ffcf0290f1cc6beab3e7a87c6dfab1bd2714fbff7d0a813b9f67c56444718d4b116f1a51585
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec