Analysis
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max time kernel
150s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
16-05-2024 04:26
Static task
static1
Behavioral task
behavioral1
Sample
73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe
Resource
win10v2004-20240426-en
General
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Target
73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe
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Size
4.1MB
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MD5
d142e671eded49f4bf539b2b1218b313
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SHA1
78661927b47b3a4eb0c091eb325a69b2727c1360
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SHA256
73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b
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SHA512
5a7ad1249fa322ce05a6528f927f424e33d649d0e2cf5f0127eacd6cf02aa420f76ff848469674678cbf1ed220d2155cea580e24acd7c0d31587856f10a21a7e
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SSDEEP
98304:Z96GAmuNBigEkoqfZTwC6uGlBZNljS4jcw:ZI9hoq9wC6uGlB/xgw
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/4628-2-0x0000000002E30000-0x000000000371B000-memory.dmp family_glupteba behavioral2/memory/4628-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4628-65-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4628-83-0x0000000002E30000-0x000000000371B000-memory.dmp family_glupteba behavioral2/memory/2340-121-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2788-195-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2788-207-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2788-210-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2788-216-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2788-220-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2788-223-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2788-227-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2788-232-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2788-235-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2788-239-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2788-242-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2788-248-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2788-251-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 4700 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 2788 csrss.exe 4120 injector.exe 3724 windefender.exe 3548 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002aa58-199.dat upx behavioral2/memory/3724-200-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3548-203-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3724-205-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3548-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3548-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Set value (str) \REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe -
Drops file in Windows directory 4 IoCs
Processes:
csrss.exe73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exedescription ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe File created C:\Windows\rss\csrss.exe 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe File created 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 1744 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 3456 powershell.exe 3052 powershell.exe 2328 powershell.exe 1508 powershell.exe 4612 powershell.exe 2000 powershell.exe 4836 powershell.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target Process procid_target 4228 2328 WerFault.exe 78 -
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 1236 schtasks.exe 2276 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates 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\2a\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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\2a\52C64B7E\@tzres.dll,-571 = "China Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2751 = "Tomsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates 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\2a\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-272 = "Greenwich Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1411 = "Syria Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-562 = "SE Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-231 = "Hawaiian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.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\2a\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exepowershell.exe73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 2328 powershell.exe 2328 powershell.exe 4628 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 4628 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 1508 powershell.exe 1508 powershell.exe 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 4612 powershell.exe 4612 powershell.exe 2000 powershell.exe 2000 powershell.exe 4836 powershell.exe 4836 powershell.exe 3456 powershell.exe 3456 powershell.exe 3052 powershell.exe 3052 powershell.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 2788 csrss.exe 2788 csrss.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 2788 csrss.exe 2788 csrss.exe 4120 injector.exe 4120 injector.exe 2788 csrss.exe 2788 csrss.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe 4120 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 2328 powershell.exe Token: SeDebugPrivilege 4628 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Token: SeImpersonatePrivilege 4628 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe Token: SeDebugPrivilege 1508 powershell.exe Token: SeDebugPrivilege 4612 powershell.exe Token: SeDebugPrivilege 2000 powershell.exe Token: SeDebugPrivilege 4836 powershell.exe Token: SeDebugPrivilege 3456 powershell.exe Token: SeDebugPrivilege 3052 powershell.exe Token: SeSystemEnvironmentPrivilege 2788 csrss.exe Token: SeSecurityPrivilege 1744 sc.exe Token: SeSecurityPrivilege 1744 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 4628 wrote to memory of 2328 4628 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 78 PID 4628 wrote to memory of 2328 4628 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 78 PID 4628 wrote to memory of 2328 4628 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 78 PID 2340 wrote to memory of 1508 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 86 PID 2340 wrote to memory of 1508 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 86 PID 2340 wrote to memory of 1508 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 86 PID 2340 wrote to memory of 3504 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 88 PID 2340 wrote to memory of 3504 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 88 PID 3504 wrote to memory of 4700 3504 cmd.exe 90 PID 3504 wrote to memory of 4700 3504 cmd.exe 90 PID 2340 wrote to memory of 4612 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 91 PID 2340 wrote to memory of 4612 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 91 PID 2340 wrote to memory of 4612 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 91 PID 2340 wrote to memory of 2000 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 93 PID 2340 wrote to memory of 2000 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 93 PID 2340 wrote to memory of 2000 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 93 PID 2340 wrote to memory of 2788 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 95 PID 2340 wrote to memory of 2788 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 95 PID 2340 wrote to memory of 2788 2340 73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe 95 PID 2788 wrote to memory of 4836 2788 csrss.exe 96 PID 2788 wrote to memory of 4836 2788 csrss.exe 96 PID 2788 wrote to memory of 4836 2788 csrss.exe 96 PID 2788 wrote to memory of 3456 2788 csrss.exe 102 PID 2788 wrote to memory of 3456 2788 csrss.exe 102 PID 2788 wrote to memory of 3456 2788 csrss.exe 102 PID 2788 wrote to memory of 3052 2788 csrss.exe 104 PID 2788 wrote to memory of 3052 2788 csrss.exe 104 PID 2788 wrote to memory of 3052 2788 csrss.exe 104 PID 2788 wrote to memory of 4120 2788 csrss.exe 106 PID 2788 wrote to memory of 4120 2788 csrss.exe 106 PID 3724 wrote to memory of 1060 3724 windefender.exe 112 PID 3724 wrote to memory of 1060 3724 windefender.exe 112 PID 3724 wrote to memory of 1060 3724 windefender.exe 112 PID 1060 wrote to memory of 1744 1060 cmd.exe 113 PID 1060 wrote to memory of 1744 1060 cmd.exe 113 PID 1060 wrote to memory of 1744 1060 cmd.exe 113 -
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\73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe"C:\Users\Admin\AppData\Local\Temp\73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4628 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2328 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2328 -s 24803⤵
- Program crash
PID:4228
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C:\Users\Admin\AppData\Local\Temp\73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.exe"C:\Users\Admin\AppData\Local\Temp\73c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b.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:2340 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1508
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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:3504 -
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:4700
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4612
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2000
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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:2788 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4836
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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:1236
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1008
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3456
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3052
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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:4120
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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:2276
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3724 -
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:1060 -
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:1744
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 2328 -ip 23281⤵PID:3348
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3548
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
MD507259fe89eb99d7257eff42eff595790
SHA17f4469ecfc8e9dc8bde486c5f53006ac3ff919e2
SHA256b415499c051b0f653060a6f08c7c97a5357e94fc15562f4c8497d338e6e02b09
SHA51249023f3066dfc099fd1c770cdb00f6133bd80446cd6d32704f16ebf1fff15733b416a35f468a14e821a30981a75cca311039937b30f0daf2c025ca8e66697613
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5176e378b059cb22dc2419b0af2c3bae2
SHA11067d6c4dfddfcded2d16c30c6f8114dd0489fe4
SHA2561ffab390bfa6bbe16c05a65a1b581c398f3265885b006c1405fc7d278ef7c673
SHA512775acca5af44bfe025af5edd5e5d0df3213d57e0636d2f403948554a6858de540f8cdd5259be41b9a7f8873ec2fc596341bac5c65b279effdad8ef67bce2fea7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5abb23548ea26669eb0613b11b82483eb
SHA19fb46d915dff9166fa9a85ce7195fcabc061b54c
SHA25690029c253c590e38ba8c0de2fb9347d28a5fcabed3f8a0d99626f98d17cfdee5
SHA5122018b88331a8f65b8dbc4d908f7acb26c6fea17da77e59b396d62b04c4ce482164e655444018ed0a0f5f2e65893fb265eceabd627cd797f907c1df63fd93f0a0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD571e069c20db224015f6340e2c26438bb
SHA18b1631d123dbfa7050b130df7f3e517c49dfcd87
SHA25636b738a0204742e4953824078a4e6daa82a20c445396da59e05eeaaef0093b80
SHA5126137ca714bcab21e774cdff18d0055b07ce8b1b99e8bb851007f34d703a60de359f64833a71e9dc4c240e3dd2d62c66c37a0fd986f6e79ba0e743c1940b2e6e0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50781b507775baaeaa2a7eedff4e294b2
SHA1dc857e6e2cca98af9f56980f0c82a26176a64951
SHA256c59067962b8698da95b4f7d6fa264df8d6ce630f57bb6d556c41c60f14db14a1
SHA51288affbe4fcc4b3304c3a2566fad18452d70851c7adbae69f795cc6c7b782a3900905d0632dd44eac858bef892efe36b5922ebe4cd42aeee6861d5e30228aa897
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Filesize
4.1MB
MD5d142e671eded49f4bf539b2b1218b313
SHA178661927b47b3a4eb0c091eb325a69b2727c1360
SHA25673c0e967b3fc7caef61bb93b86d3647a8b6d4f6c584dc6230e43d0e1ee5eb24b
SHA5125a7ad1249fa322ce05a6528f927f424e33d649d0e2cf5f0127eacd6cf02aa420f76ff848469674678cbf1ed220d2155cea580e24acd7c0d31587856f10a21a7e
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec