Analysis
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max time kernel
150s -
max time network
152s -
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 10:05
Static task
static1
Behavioral task
behavioral1
Sample
8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe
Resource
win10v2004-20240412-en
General
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Target
8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe
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Size
4.2MB
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MD5
ae81d80c135ec01e89844a4b84cb484c
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SHA1
594de20a6c6f589715580ec6d5a92d708c582918
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SHA256
8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e
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SHA512
e1e734af45bb2b3deab39dfab295454afda106397865169df8554be0d285109b33d6a4b7b4bd1c6a638cd91748137e988e57e83dd110623ba3e3db6e4a402f0e
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SSDEEP
98304:RVZ8YaHLZbdTGPWbzvCz1SbsIN2xntSV3Lk4gGf7SZ7O3TWurK:RVdUTGUCz4L243Lk4Du1OjWv
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/4864-2-0x0000000005420000-0x0000000005D0B000-memory.dmp family_glupteba behavioral2/memory/4864-3-0x0000000000400000-0x000000000300C000-memory.dmp family_glupteba behavioral2/memory/4864-50-0x0000000000400000-0x000000000300C000-memory.dmp family_glupteba behavioral2/memory/4864-52-0x0000000005420000-0x0000000005D0B000-memory.dmp family_glupteba behavioral2/memory/1388-54-0x0000000000400000-0x000000000300C000-memory.dmp family_glupteba behavioral2/memory/1388-87-0x0000000000400000-0x000000000300C000-memory.dmp family_glupteba behavioral2/memory/1388-114-0x0000000003780000-0x0000000003B82000-memory.dmp family_glupteba behavioral2/memory/1388-136-0x0000000000400000-0x000000000300C000-memory.dmp family_glupteba behavioral2/memory/1388-144-0x0000000000400000-0x000000000300C000-memory.dmp family_glupteba behavioral2/memory/2376-179-0x0000000000400000-0x000000000300C000-memory.dmp family_glupteba behavioral2/memory/2376-243-0x0000000000400000-0x000000000300C000-memory.dmp family_glupteba behavioral2/memory/2376-252-0x0000000000400000-0x000000000300C000-memory.dmp family_glupteba behavioral2/memory/2376-254-0x0000000000400000-0x000000000300C000-memory.dmp family_glupteba behavioral2/memory/2376-256-0x0000000000400000-0x000000000300C000-memory.dmp family_glupteba behavioral2/memory/2376-258-0x0000000000400000-0x000000000300C000-memory.dmp family_glupteba behavioral2/memory/2376-260-0x0000000000400000-0x000000000300C000-memory.dmp family_glupteba behavioral2/memory/2376-262-0x0000000000400000-0x000000000300C000-memory.dmp family_glupteba behavioral2/memory/2376-264-0x0000000000400000-0x000000000300C000-memory.dmp family_glupteba behavioral2/memory/2376-266-0x0000000000400000-0x000000000300C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 2956 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 2376 csrss.exe 4628 injector.exe 276 windefender.exe 4512 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/276-251-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4512-253-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4512-257-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4512-263-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
csrss.exe8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.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\"" csrss.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\"" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
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:
8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe -
Drops file in Windows directory 4 IoCs
Processes:
8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.execsrss.exedescription ioc process File opened for modification C:\Windows\rss 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe File created C:\Windows\rss\csrss.exe 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.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 4508 sc.exe -
Program crash 6 IoCs
Processes:
WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exepid pid_target process target process 1764 4864 WerFault.exe 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe 3784 4864 WerFault.exe 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe 3456 4864 WerFault.exe 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe 1744 1388 WerFault.exe 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe 1352 1388 WerFault.exe 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe 3516 1388 WerFault.exe 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.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 4332 schtasks.exe 4644 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exe8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exepowershell.exepowershell.exepowershell.exewindefender.exepowershell.exedescription ioc process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.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\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time" windefender.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\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-602 = "Taipei Standard 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\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs 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\26\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2842 = "Saratov 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" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-351 = "FLE Daylight Time" windefender.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\@tzres.dll,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-52 = "Greenland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.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\26\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-491 = "India Daylight 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)" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.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\26\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-241 = "Samoa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exepowershell.exe8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4888 powershell.exe 4888 powershell.exe 4864 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe 4864 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe 5008 powershell.exe 5008 powershell.exe 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe 4080 powershell.exe 4080 powershell.exe 2120 powershell.exe 2120 powershell.exe 1848 powershell.exe 1848 powershell.exe 4420 powershell.exe 4420 powershell.exe 5060 powershell.exe 5060 powershell.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 2376 csrss.exe 2376 csrss.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 2376 csrss.exe 2376 csrss.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 2376 csrss.exe 2376 csrss.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe 4628 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 4888 powershell.exe Token: SeDebugPrivilege 4864 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Token: SeImpersonatePrivilege 4864 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe Token: SeDebugPrivilege 5008 powershell.exe Token: SeDebugPrivilege 4080 powershell.exe Token: SeDebugPrivilege 2120 powershell.exe Token: SeDebugPrivilege 1848 powershell.exe Token: SeDebugPrivilege 4420 powershell.exe Token: SeDebugPrivilege 5060 powershell.exe Token: SeSystemEnvironmentPrivilege 2376 csrss.exe Token: SeSecurityPrivilege 4508 sc.exe Token: SeSecurityPrivilege 4508 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4864 wrote to memory of 4888 4864 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe powershell.exe PID 4864 wrote to memory of 4888 4864 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe powershell.exe PID 4864 wrote to memory of 4888 4864 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe powershell.exe PID 1388 wrote to memory of 5008 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe powershell.exe PID 1388 wrote to memory of 5008 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe powershell.exe PID 1388 wrote to memory of 5008 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe powershell.exe PID 1388 wrote to memory of 3044 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe cmd.exe PID 1388 wrote to memory of 3044 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe cmd.exe PID 3044 wrote to memory of 2956 3044 cmd.exe netsh.exe PID 3044 wrote to memory of 2956 3044 cmd.exe netsh.exe PID 1388 wrote to memory of 4080 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe powershell.exe PID 1388 wrote to memory of 4080 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe powershell.exe PID 1388 wrote to memory of 4080 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe powershell.exe PID 1388 wrote to memory of 2120 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe powershell.exe PID 1388 wrote to memory of 2120 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe powershell.exe PID 1388 wrote to memory of 2120 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe powershell.exe PID 1388 wrote to memory of 2376 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe csrss.exe PID 1388 wrote to memory of 2376 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe csrss.exe PID 1388 wrote to memory of 2376 1388 8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe csrss.exe PID 2376 wrote to memory of 1848 2376 csrss.exe powershell.exe PID 2376 wrote to memory of 1848 2376 csrss.exe powershell.exe PID 2376 wrote to memory of 1848 2376 csrss.exe powershell.exe PID 2376 wrote to memory of 4420 2376 csrss.exe powershell.exe PID 2376 wrote to memory of 4420 2376 csrss.exe powershell.exe PID 2376 wrote to memory of 4420 2376 csrss.exe powershell.exe PID 2376 wrote to memory of 5060 2376 csrss.exe powershell.exe PID 2376 wrote to memory of 5060 2376 csrss.exe powershell.exe PID 2376 wrote to memory of 5060 2376 csrss.exe powershell.exe PID 2376 wrote to memory of 4628 2376 csrss.exe injector.exe PID 2376 wrote to memory of 4628 2376 csrss.exe injector.exe PID 276 wrote to memory of 1368 276 windefender.exe cmd.exe PID 276 wrote to memory of 1368 276 windefender.exe cmd.exe PID 276 wrote to memory of 1368 276 windefender.exe cmd.exe PID 1368 wrote to memory of 4508 1368 cmd.exe sc.exe PID 1368 wrote to memory of 4508 1368 cmd.exe sc.exe PID 1368 wrote to memory of 4508 1368 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\8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe"C:\Users\Admin\AppData\Local\Temp\8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4864 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4888 -
C:\Users\Admin\AppData\Local\Temp\8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.exe"C:\Users\Admin\AppData\Local\Temp\8a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e.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:1388 -
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:5008 -
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:3044 -
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:2956 -
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:4080 -
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:2120 -
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:2376 -
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:1848 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4332 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3636
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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:4420 -
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:5060 -
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:4628 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4644 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:276 -
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:1368 -
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:4508 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1388 -s 8483⤵
- Program crash
PID:1744 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1388 -s 8883⤵
- Program crash
PID:1352 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1388 -s 8923⤵
- Program crash
PID:3516 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4864 -s 8482⤵
- Program crash
PID:1764 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4864 -s 8882⤵
- Program crash
PID:3784 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4864 -s 9362⤵
- Program crash
PID:3456
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4864 -ip 48641⤵PID:2328
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4864 -ip 48641⤵PID:3488
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4864 -ip 48641⤵PID:2092
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1388 -ip 13881⤵PID:4124
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1388 -ip 13881⤵PID:2112
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 1388 -ip 13881⤵PID:244
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4512
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52ebb7c1014e0d9b5a8c2ad2c1dc8d575
SHA1a7a04e2fb69c8747999ef13a4734268b2957b3a0
SHA2563210bf8fd92125bb2919a63969eb8cb08f74dbfdac1539ef526157a70418ed58
SHA5127c692d2558ab38af6fd161951856f8abcc1ebdf3cef74bf0e120bd3bc3e44ec1f53ebdb07b49d908c338ae61b9390d56d469a72817579dd84cd93ad841ce731b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a4154b48d9dc435e509a259cb6751194
SHA1e63cef55538571565a4c61d32bef3a75d729b166
SHA2563bf419cf2836d9b6b43dbdc301210e4de7aafd6647f0944e922f7bfb51baa079
SHA5127df6b4e4aace9648d51ebaf0038e62eb2c64c90633d771ee9678bb522df9455a7d915da428cc904c2c619841d01ed5dece6e6b8bb4ca03040ceb0389d7dda92d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57baa2fc23139ef661d6beb95e79149e7
SHA121aa3ef92a4fd7a1cafaa0ea30c1429abf2dee3f
SHA256660ad014c3f00e9ce8c112d8c9238272682ac2234d44b7df99918bd41ccba20f
SHA5120a0f1bd2a80439e8cc0e3b9ee968a979e7ea6c0d96c641b91da0bba104ba62167a5a705adb2178b9a2967804ba7a38f603fae3306c01d17d484a0c8a2ea127ab
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59ccd240d9968b35abcbc6eda09e84c86
SHA1734128ebbbe42b59a54f5b341ccc0431bca3f5b1
SHA256e81056665c971787825f99e3568cdec33be749398f5dcd1ae2c2ba04fc689d5d
SHA5121611e41991f42c0b51e6046281af15c911c7fb18f2111cd872bb4fd35ea8c60d2bd31908ca5b6998b8dbff1e5fd75464f3f777a82aa3e717a160c4f15c2cd0e1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b1afd3c88ee01e7af7663a6d1f56668a
SHA1e8a500387da086d524aebfd629f3a938ebd6c0b3
SHA256eaa3931c0dc58187dda3ed83a39eaf947f9daaac396c621c6ca8e5f737e7b8b8
SHA5122b7a0a359a14a3e391efe6bf2959632146479c889a1d8b0a24cbc89b466054fdde94cd8ab9f57cbfe0b05f3066d50cd83ffe40a71a6d9765e647353e31bfe4b9
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Filesize
4.2MB
MD5ae81d80c135ec01e89844a4b84cb484c
SHA1594de20a6c6f589715580ec6d5a92d708c582918
SHA2568a33e1b1d7417046932129e91d19d570bfe93e7f1c449e72a1b8a0a48b1add6e
SHA512e1e734af45bb2b3deab39dfab295454afda106397865169df8554be0d285109b33d6a4b7b4bd1c6a638cd91748137e988e57e83dd110623ba3e3db6e4a402f0e
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec