Analysis
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max time kernel
150s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
25-04-2024 12:49
Static task
static1
Behavioral task
behavioral1
Sample
27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe
Resource
win10v2004-20240226-en
General
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Target
27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe
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Size
4.2MB
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MD5
06fde9329ba637a126edd0face3dc26e
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SHA1
c4a933b6490857cee424ab6712c59b6977154ca2
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SHA256
27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570
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SHA512
9f14af6ac0f23249f92157e0edf9b6a87d63d0340a24e92aff71820aac041dc45df1c0fae4b4870a1eb7b09c2a698241ea61af6e8bdead2cbcef5414ffeeadcb
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SSDEEP
98304:JlPNnLMcliXgk6mZUGEiVLqbbhuqLV4AlEjP7K:JlP9LMc0wkDbEiV0LVIm
Malware Config
Signatures
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Glupteba payload 20 IoCs
Processes:
resource yara_rule behavioral2/memory/1144-2-0x00000000053D0000-0x0000000005CBB000-memory.dmp family_glupteba behavioral2/memory/1144-3-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/1144-51-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/1144-53-0x00000000053D0000-0x0000000005CBB000-memory.dmp family_glupteba behavioral2/memory/2456-55-0x0000000005150000-0x0000000005A3B000-memory.dmp family_glupteba behavioral2/memory/2456-56-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2456-89-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2456-112-0x0000000003730000-0x0000000003B38000-memory.dmp family_glupteba behavioral2/memory/2456-139-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2456-149-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2888-184-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2888-249-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2888-257-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2888-258-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2888-260-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2888-262-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2888-264-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2888-266-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2888-269-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2888-270-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 1064 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 2888 csrss.exe 2556 injector.exe 3032 windefender.exe 3440 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/3032-256-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3440-259-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3440-263-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\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 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 File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log 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:
27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe -
Drops file in Windows directory 4 IoCs
Processes:
27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.execsrss.exedescription ioc process File opened for modification C:\Windows\rss 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe File created C:\Windows\rss\csrss.exe 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.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 4280 sc.exe -
Program crash 3 IoCs
Processes:
WerFault.exeWerFault.exeWerFault.exepid pid_target process target process 3168 1144 WerFault.exe 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe 1788 1144 WerFault.exe 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe 2032 1144 WerFault.exe 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.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 2032 schtasks.exe 1268 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exewindefender.exe27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard 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,-2511 = "Lord Howe Daylight Time" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.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,-435 = "Georgian Standard Time" windefender.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\@tzres.dll,-691 = "Tasmania Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA 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\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-82 = "Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.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,-981 = "Kamchatka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-631 = "Tokyo 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" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates 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,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.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\26\52C64B7E\@tzres.dll,-401 = "Arabic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exepowershell.exe27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 5012 powershell.exe 5012 powershell.exe 1144 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe 1144 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe 4260 powershell.exe 4260 powershell.exe 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe 3516 powershell.exe 3516 powershell.exe 1444 powershell.exe 1444 powershell.exe 1684 powershell.exe 1684 powershell.exe 3604 powershell.exe 3604 powershell.exe 2008 powershell.exe 2008 powershell.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2888 csrss.exe 2888 csrss.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2888 csrss.exe 2888 csrss.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2888 csrss.exe 2888 csrss.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe 2556 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 5012 powershell.exe Token: SeDebugPrivilege 1144 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Token: SeImpersonatePrivilege 1144 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe Token: SeDebugPrivilege 4260 powershell.exe Token: SeDebugPrivilege 3516 powershell.exe Token: SeDebugPrivilege 1444 powershell.exe Token: SeDebugPrivilege 1684 powershell.exe Token: SeDebugPrivilege 3604 powershell.exe Token: SeDebugPrivilege 2008 powershell.exe Token: SeSystemEnvironmentPrivilege 2888 csrss.exe Token: SeSecurityPrivilege 4280 sc.exe Token: SeSecurityPrivilege 4280 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 1144 wrote to memory of 5012 1144 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe powershell.exe PID 1144 wrote to memory of 5012 1144 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe powershell.exe PID 1144 wrote to memory of 5012 1144 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe powershell.exe PID 2456 wrote to memory of 4260 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe powershell.exe PID 2456 wrote to memory of 4260 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe powershell.exe PID 2456 wrote to memory of 4260 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe powershell.exe PID 2456 wrote to memory of 4872 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe cmd.exe PID 2456 wrote to memory of 4872 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe cmd.exe PID 4872 wrote to memory of 1064 4872 cmd.exe netsh.exe PID 4872 wrote to memory of 1064 4872 cmd.exe netsh.exe PID 2456 wrote to memory of 3516 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe powershell.exe PID 2456 wrote to memory of 3516 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe powershell.exe PID 2456 wrote to memory of 3516 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe powershell.exe PID 2456 wrote to memory of 1444 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe powershell.exe PID 2456 wrote to memory of 1444 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe powershell.exe PID 2456 wrote to memory of 1444 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe powershell.exe PID 2456 wrote to memory of 2888 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe csrss.exe PID 2456 wrote to memory of 2888 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe csrss.exe PID 2456 wrote to memory of 2888 2456 27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe csrss.exe PID 2888 wrote to memory of 1684 2888 csrss.exe powershell.exe PID 2888 wrote to memory of 1684 2888 csrss.exe powershell.exe PID 2888 wrote to memory of 1684 2888 csrss.exe powershell.exe PID 2888 wrote to memory of 3604 2888 csrss.exe powershell.exe PID 2888 wrote to memory of 3604 2888 csrss.exe powershell.exe PID 2888 wrote to memory of 3604 2888 csrss.exe powershell.exe PID 2888 wrote to memory of 2008 2888 csrss.exe powershell.exe PID 2888 wrote to memory of 2008 2888 csrss.exe powershell.exe PID 2888 wrote to memory of 2008 2888 csrss.exe powershell.exe PID 2888 wrote to memory of 2556 2888 csrss.exe injector.exe PID 2888 wrote to memory of 2556 2888 csrss.exe injector.exe PID 3032 wrote to memory of 3396 3032 windefender.exe cmd.exe PID 3032 wrote to memory of 3396 3032 windefender.exe cmd.exe PID 3032 wrote to memory of 3396 3032 windefender.exe cmd.exe PID 3396 wrote to memory of 4280 3396 cmd.exe sc.exe PID 3396 wrote to memory of 4280 3396 cmd.exe sc.exe PID 3396 wrote to memory of 4280 3396 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\27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe"C:\Users\Admin\AppData\Local\Temp\27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1144 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5012 -
C:\Users\Admin\AppData\Local\Temp\27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.exe"C:\Users\Admin\AppData\Local\Temp\27e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570.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:2456 -
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:4260 -
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:4872 -
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:1064 -
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:3516 -
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:1444 -
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:2888 -
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:1684 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:2032 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4620
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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:3604 -
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:2008 -
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:2556 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:1268 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3032 -
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:3396 -
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:4280 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 9882⤵
- Program crash
PID:3168 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 9722⤵
- Program crash
PID:1788 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 9522⤵
- Program crash
PID:2032
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1144 -ip 11441⤵PID:3180
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1144 -ip 11441⤵PID:3448
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1144 -ip 11441⤵PID:3920
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3440
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
MD547de6db215c6d2d61b85d77b1384e776
SHA14e59300b6f1743b9b206eced17cc81cd66c98abb
SHA25663a9bc5ddb612a54e279b8039c89f6892c179785c85d48711dc58ccef7f6407e
SHA512f760778d8601d400d9eddedf03ae149dcfef0be4d9a5d27d4418f592dd967c2ed190aa8912ffa532ffa0aa0eee8cd7a2fa2499d1b30ef3bdd2450f004ef697b7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58a084d8658bba0573529961c69df5d7c
SHA1d384552f98f95b53418508edfd8ddf3a21ca0da1
SHA256b75bca86ab7134ed0b61eb1137d521eb521b434cd6c5be5fba3fe41b8a6c87e8
SHA512aaf6c207d5b99e2684d81c54b49a968e962cb986859aef975da0877dcac782aba5b99ca95d47ccaf8fb4ec72270a86debe3b42cb08979d3df5c3b9e033524be6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e6a4ce0877a35643953dc9412f19da2a
SHA16a3af27ef8a1495fbb582078533b0410df00b951
SHA2567b8da24fccf1994d8e0637c9ae47860c4a0dc3f171c84f0def2ef900f3194710
SHA51204b618919c2ec539d017cad4ec88cd1ef749bde0ce2b0b9f1f57668b4baae60a4129ab7d2ac75c893d9a60d2993afb14d54282fd8d89f02ad4fc9da4b48eca5a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5df38877d33bceef72958241144011c82
SHA17492721853174d4469f7ad963d705151b8107f53
SHA2560bb68bbb684dc54c5b8fdabf953a975e7d61f570c02658bbc18700a0a5ccedef
SHA512a3efcaa7f69b9f12604cd50fabca9a66ceac6bb4f402a1890c42d55f5c0e6b409507aec5c0bd834241f45461da896fd90b1b149623a2abe9cda604043683a3c3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56bf526025413967ae8119352be4261bb
SHA1d2ed0a4ddf73ddbce337eefcfaf489b86c0a2821
SHA25660a277e5bc9e2b48c662b8009f415c7ab629ade16db5406a9fedd66f4673c0c4
SHA512c0fabd848fc6f8c63bea8e7228f2d4ff1af960a7732a45e2f813a58d6cacc4ed7e9c5f45c48b8e2a594919eea7f7312d77bb81838858fa04937b18ef64e54c97
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Filesize
4.2MB
MD506fde9329ba637a126edd0face3dc26e
SHA1c4a933b6490857cee424ab6712c59b6977154ca2
SHA25627e8af88f2dcbd8524cde08aaf09a357c2ee3a4ce1e4f34c2a295df820c58570
SHA5129f14af6ac0f23249f92157e0edf9b6a87d63d0340a24e92aff71820aac041dc45df1c0fae4b4870a1eb7b09c2a698241ea61af6e8bdead2cbcef5414ffeeadcb
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec