Analysis
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max time kernel
149s -
max time network
144s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
04/05/2024, 14:48
Static task
static1
Behavioral task
behavioral1
Sample
f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe
Resource
win10v2004-20240426-en
General
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Target
f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe
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Size
4.2MB
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MD5
4e4f3b57f27c4777db68b3d7bfde90f7
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SHA1
10a4b635054778bd6187408387f87198b65fa425
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SHA256
f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4
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SHA512
bb572850dcaad0fc9ef0b1b20f87a2e1fcf03cec027d37ad05293e0b0e3cd5cccbf6f2413bcbdb6eb7f467a290b1e5fa767d322dffd495065a4807aa6ed65986
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SSDEEP
98304:XI5uELBTqnVWcXy/Y/HCLJbXTjWr1KExIiCpCM+M:45uELB2ncAy/Y/KhTKzIiCp6M
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/2364-2-0x0000000003F20000-0x000000000480B000-memory.dmp family_glupteba behavioral2/memory/2364-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1324-120-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/2364-134-0x0000000003F20000-0x000000000480B000-memory.dmp family_glupteba behavioral2/memory/2364-132-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/2364-197-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2280-199-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/2280-209-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/2280-212-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/2280-215-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/2280-217-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/2280-221-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/2280-224-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/2280-227-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/2280-229-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/2280-233-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/2280-236-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/2280-239-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/2280-241-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1360 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2280 csrss.exe 4520 injector.exe 4368 windefender.exe 1368 windefender.exe -
resource yara_rule behavioral2/memory/4368-204-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/files/0x000200000002a9fb-205.dat upx behavioral2/memory/4368-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1368-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1368-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1368-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1368-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3062789476-783164490-2318012559-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Set value (str) \REGISTRY\USER\S-1-5-21-3062789476-783164490-2318012559-1000\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.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process 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 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.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe File created C:\Windows\rss\csrss.exe f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.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.
pid Process 2080 sc.exe -
pid Process 5044 powershell.exe 4936 powershell.exe 1896 powershell.exe 1140 powershell.exe 2008 powershell.exe 1884 powershell.exe 2440 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 684 schtasks.exe 4896 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process 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,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-221 = "Alaskan Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs 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,-572 = "China Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-672 = "AUS Eastern 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\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2451 = "Saint Pierre 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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-722 = "Central Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time" windefender.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\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1802 = "Line Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1140 powershell.exe 1140 powershell.exe 2364 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 2364 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 2008 powershell.exe 2008 powershell.exe 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 1884 powershell.exe 1884 powershell.exe 2440 powershell.exe 2440 powershell.exe 5044 powershell.exe 5044 powershell.exe 4936 powershell.exe 4936 powershell.exe 1896 powershell.exe 1896 powershell.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 2280 csrss.exe 2280 csrss.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 2280 csrss.exe 2280 csrss.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 2280 csrss.exe 2280 csrss.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe 4520 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1140 powershell.exe Token: SeDebugPrivilege 2364 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Token: SeImpersonatePrivilege 2364 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe Token: SeDebugPrivilege 2008 powershell.exe Token: SeDebugPrivilege 1884 powershell.exe Token: SeDebugPrivilege 2440 powershell.exe Token: SeDebugPrivilege 5044 powershell.exe Token: SeDebugPrivilege 4936 powershell.exe Token: SeDebugPrivilege 1896 powershell.exe Token: SeSystemEnvironmentPrivilege 2280 csrss.exe Token: SeSecurityPrivilege 2080 sc.exe Token: SeSecurityPrivilege 2080 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2364 wrote to memory of 1140 2364 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 82 PID 2364 wrote to memory of 1140 2364 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 82 PID 2364 wrote to memory of 1140 2364 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 82 PID 1324 wrote to memory of 2008 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 88 PID 1324 wrote to memory of 2008 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 88 PID 1324 wrote to memory of 2008 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 88 PID 1324 wrote to memory of 3528 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 90 PID 1324 wrote to memory of 3528 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 90 PID 3528 wrote to memory of 1360 3528 cmd.exe 92 PID 3528 wrote to memory of 1360 3528 cmd.exe 92 PID 1324 wrote to memory of 1884 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 93 PID 1324 wrote to memory of 1884 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 93 PID 1324 wrote to memory of 1884 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 93 PID 1324 wrote to memory of 2440 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 95 PID 1324 wrote to memory of 2440 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 95 PID 1324 wrote to memory of 2440 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 95 PID 1324 wrote to memory of 2280 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 97 PID 1324 wrote to memory of 2280 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 97 PID 1324 wrote to memory of 2280 1324 f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe 97 PID 2280 wrote to memory of 5044 2280 csrss.exe 98 PID 2280 wrote to memory of 5044 2280 csrss.exe 98 PID 2280 wrote to memory of 5044 2280 csrss.exe 98 PID 2280 wrote to memory of 4936 2280 csrss.exe 104 PID 2280 wrote to memory of 4936 2280 csrss.exe 104 PID 2280 wrote to memory of 4936 2280 csrss.exe 104 PID 2280 wrote to memory of 1896 2280 csrss.exe 106 PID 2280 wrote to memory of 1896 2280 csrss.exe 106 PID 2280 wrote to memory of 1896 2280 csrss.exe 106 PID 2280 wrote to memory of 4520 2280 csrss.exe 108 PID 2280 wrote to memory of 4520 2280 csrss.exe 108 PID 4368 wrote to memory of 3680 4368 windefender.exe 114 PID 4368 wrote to memory of 3680 4368 windefender.exe 114 PID 4368 wrote to memory of 3680 4368 windefender.exe 114 PID 3680 wrote to memory of 2080 3680 cmd.exe 115 PID 3680 wrote to memory of 2080 3680 cmd.exe 115 PID 3680 wrote to memory of 2080 3680 cmd.exe 115 -
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\f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe"C:\Users\Admin\AppData\Local\Temp\f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2364 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1140
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C:\Users\Admin\AppData\Local\Temp\f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.exe"C:\Users\Admin\AppData\Local\Temp\f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4.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:1324 -
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:2008
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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:3528 -
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:1360
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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:1884
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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:2440
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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:2280 -
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:5044
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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:684
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:5000
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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:4936
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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:1896
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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:4520
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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:4896
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4368 -
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:3680 -
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:2080
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1368
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
MD524f4cca7eee2a8b774df08963b9273b0
SHA1fe9a261eb45eb8bb14752c768396e47e5c8ee403
SHA2568d7f55454e8b4857155260ac5bbe1aa69c86a82bf761aeddb1ef41eb0f2137c6
SHA512e6727cca6cef93c44da952455371b4b38341c337eeab60b92d4bdac9e2695e1ea1800851ff48d11d22e274a7c17f696c34eed006c8c995e57e62c374016f0618
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ea2af6fdbb1d6c66a9389ea0d67762db
SHA1bfa4fb19f758f91f58b9529dbe0e513070d17d72
SHA256a49d66e4652c8f2470183db4aaab84482277a7406b87d04fa4d87b789352a9cf
SHA512ec74b1229a68400391b58bd2bcdc50176b0c9a3549f0004fea68e17858c546821074728d23e36351e4df3c3ec6ae7725a82a0f126670a235c6a845647a85e758
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e5123913bd99ebaa5e04e1a5feb0da6c
SHA1e16331acda997d575bf3cf70f9ae50c3e9eea442
SHA2569d54c7bcc4ab21ca1ed1c9871397dbd690127bb245d40651dce4af33c9d88d90
SHA5124a433206f571f5cce8582cdb79297e18126d63da8b08f40cac084e9328ec8b83c46b55402f3a6662b82e52936db3450a91c4fae88d4f91d815c2d8be225f32d8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58c0a50fbd1db017186589cdc918824b8
SHA12e9b83dce9879e17349933983a4dfaae2284fc3c
SHA25668d0194caa0b175c157c66f728d1b254088d6fcfba5affe8533683ae6bb87cda
SHA5120d90ab940e86a2f498f93c231f10062d1a17d76ea0958cc6e8a144b50ddf1373d382016655470eba02ea6e1ce941df6c660e35716885c51b40238c8ce0ee656d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e26661a685bc846134f4b79f84b59247
SHA14c4a939e4e9258808be85c7f292b0acff1401928
SHA256824932cc4a390b954ff0cf0449cf8dd10bb1eb6c8e3b817d58c3539668fb3b40
SHA51278a13efbdf8e0b610290209b81704f4a88749fa92ea4e5032cf6aff54e2970a18ddc68dadcbb3bc7c5e4ff632afbebf4425e1743a897b60f6133f15e364be7af
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Filesize
4.2MB
MD54e4f3b57f27c4777db68b3d7bfde90f7
SHA110a4b635054778bd6187408387f87198b65fa425
SHA256f5fad55768c6ce6286b44a3893f1ccceac42cec21ab58c2052f2c55c73e6d6b4
SHA512bb572850dcaad0fc9ef0b1b20f87a2e1fcf03cec027d37ad05293e0b0e3cd5cccbf6f2413bcbdb6eb7f467a290b1e5fa767d322dffd495065a4807aa6ed65986
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec