Analysis
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max time kernel
149s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
12-04-2024 23:21
Static task
static1
Behavioral task
behavioral1
Sample
bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe
Resource
win10v2004-20240412-en
General
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Target
bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe
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Size
4.2MB
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MD5
88c9cb2995c96df8d838a12ea9ce4dd0
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SHA1
bd9036aafaf4bc173d3094eb37c52bef4b6d0b9e
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SHA256
bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60
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SHA512
aaf43c0182a621c6677f2f613ed31cd187849c89793d06f91326d39ac99178662daca987a8a03bcd7a2dcb6f10b8e61570b3d9c2d218e05a1194b2e1bd50eb7f
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SSDEEP
98304:mxYk/Wd4gprCGADohyqBdv1Fi5ytzZrDpDNU:YnWmu2kBdS54nBNU
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/4920-2-0x0000000005430000-0x0000000005D1B000-memory.dmp family_glupteba behavioral2/memory/4920-3-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral2/memory/4920-50-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral2/memory/4920-52-0x0000000005430000-0x0000000005D1B000-memory.dmp family_glupteba behavioral2/memory/2064-55-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral2/memory/2064-115-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral2/memory/2064-147-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral2/memory/4400-238-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral2/memory/4400-247-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral2/memory/4400-254-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral2/memory/4400-257-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral2/memory/4400-260-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral2/memory/4400-263-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral2/memory/4400-266-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral2/memory/4400-270-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral2/memory/4400-273-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral2/memory/4400-275-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral2/memory/4400-278-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3560 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 4400 csrss.exe 4080 injector.exe 3200 windefender.exe 3772 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/3200-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3772-256-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3772-262-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe -
Drops file in Windows directory 4 IoCs
Processes:
bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.execsrss.exedescription ioc process File opened for modification C:\Windows\rss bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe File created C:\Windows\rss\csrss.exe bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.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 1380 sc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 4176 schtasks.exe 4976 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2511 = "Lord Howe 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\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\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\trust\CRLs 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,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1802 = "Line Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.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" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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\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,-32 = "Mid-Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2161 = "Altai 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,-411 = "E. Africa Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-691 = "Tasmania Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exebfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exepowershell.exebfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4628 powershell.exe 4628 powershell.exe 4920 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 4920 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 3296 powershell.exe 3296 powershell.exe 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 2532 powershell.exe 2532 powershell.exe 3520 powershell.exe 3520 powershell.exe 4960 powershell.exe 4960 powershell.exe 2244 powershell.exe 2244 powershell.exe 4488 powershell.exe 4488 powershell.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4400 csrss.exe 4400 csrss.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4400 csrss.exe 4400 csrss.exe 4080 injector.exe 4080 injector.exe 4400 csrss.exe 4400 csrss.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe 4080 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exebfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 4628 powershell.exe Token: SeDebugPrivilege 4920 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Token: SeImpersonatePrivilege 4920 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Token: SeDebugPrivilege 3296 powershell.exe Token: SeDebugPrivilege 2532 powershell.exe Token: SeDebugPrivilege 3520 powershell.exe Token: SeDebugPrivilege 4960 powershell.exe Token: SeDebugPrivilege 2244 powershell.exe Token: SeDebugPrivilege 4488 powershell.exe Token: SeSystemEnvironmentPrivilege 4400 csrss.exe Token: SeSecurityPrivilege 1380 sc.exe Token: SeSecurityPrivilege 1380 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exebfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4920 wrote to memory of 4628 4920 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 4920 wrote to memory of 4628 4920 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 4920 wrote to memory of 4628 4920 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 2064 wrote to memory of 3296 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 2064 wrote to memory of 3296 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 2064 wrote to memory of 3296 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 2064 wrote to memory of 2580 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe cmd.exe PID 2064 wrote to memory of 2580 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe cmd.exe PID 2580 wrote to memory of 3560 2580 cmd.exe netsh.exe PID 2580 wrote to memory of 3560 2580 cmd.exe netsh.exe PID 2064 wrote to memory of 2532 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 2064 wrote to memory of 2532 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 2064 wrote to memory of 2532 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 2064 wrote to memory of 3520 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 2064 wrote to memory of 3520 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 2064 wrote to memory of 3520 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 2064 wrote to memory of 4400 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe csrss.exe PID 2064 wrote to memory of 4400 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe csrss.exe PID 2064 wrote to memory of 4400 2064 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe csrss.exe PID 4400 wrote to memory of 4960 4400 csrss.exe powershell.exe PID 4400 wrote to memory of 4960 4400 csrss.exe powershell.exe PID 4400 wrote to memory of 4960 4400 csrss.exe powershell.exe PID 4400 wrote to memory of 2244 4400 csrss.exe powershell.exe PID 4400 wrote to memory of 2244 4400 csrss.exe powershell.exe PID 4400 wrote to memory of 2244 4400 csrss.exe powershell.exe PID 4400 wrote to memory of 4488 4400 csrss.exe powershell.exe PID 4400 wrote to memory of 4488 4400 csrss.exe powershell.exe PID 4400 wrote to memory of 4488 4400 csrss.exe powershell.exe PID 4400 wrote to memory of 4080 4400 csrss.exe injector.exe PID 4400 wrote to memory of 4080 4400 csrss.exe injector.exe PID 3200 wrote to memory of 4880 3200 windefender.exe cmd.exe PID 3200 wrote to memory of 4880 3200 windefender.exe cmd.exe PID 3200 wrote to memory of 4880 3200 windefender.exe cmd.exe PID 4880 wrote to memory of 1380 4880 cmd.exe sc.exe PID 4880 wrote to memory of 1380 4880 cmd.exe sc.exe PID 4880 wrote to memory of 1380 4880 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\bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe"C:\Users\Admin\AppData\Local\Temp\bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4920 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4628 -
C:\Users\Admin\AppData\Local\Temp\bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe"C:\Users\Admin\AppData\Local\Temp\bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.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:2064 -
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:3296 -
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:2580 -
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:3560 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2532 -
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:3520 -
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:4400 -
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:4960 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4176 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1028
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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:2244 -
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:4488 -
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:4080 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4976 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3200 -
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:4880 -
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:1380
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3772
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5defb69ab9e18b70ddd1587ccf34ed7d5
SHA1ad40db52e5e9a0f5e608388f99292576182ece66
SHA256545683920bd1790858c74591d42e75aae1734c00af59743004c532c68f70827b
SHA5121f10b7ab2fa7dbf76bfc8f8106b19d5c1bfda5b1acd191788c9480f96809677d4e3af85185824cd26cef6af3dda7cb0ef65b9e8bb536c7d61a503998809ed10e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cf9f2493e376446d0ba81d4e3fceccdb
SHA154cbe2996c61c44dfa5ab0dc00d3172b02929249
SHA2566e17efc41e8e6c750e75447dc5eca907374468b385c3269f6b6ff88d85510e01
SHA5129de783a627c0fab75538610e601cd0d8574ca24808ea91ae1476129c1acae8b4c53a8ffaa9ec1c855a39c6c0a0384a08ccc9d5d520d227811c5884a974d78681
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d1cde1e5e60cf08468fc10fda161e6d7
SHA1cdca9e5368b0bce946cafa18c3b0dea930c80a42
SHA2565963c0adb837b8b146a240fd2047513163748e9c2b4c9e808cf51fc996d9dcad
SHA512d857a6bf6b589b0b9d95650d25b626b19e347dc3fe8c72afb639f442f1e856f9193dd095db64c632e6d1b108a0a1585924e7ec398b469dee545403548f9d2b5e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ae02ca31dc4ddf5c1a97d95eaa04fec2
SHA1a951aa84b60ef4c7a7e0d90a7bb2ed8ac49d2fab
SHA256b7b7d91d07e544592c9e52cf2ba9fec82d400b7c59484defbd087d17bfb8b229
SHA512f560b7af46162456498eb7a52c96174c924480e414fba15db7505e9fbe56b71adc00bc112c483480aa3ef700c57c4d1736d69776c9843c470c207df5d7dd47f9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c3d04443558cc9549c90f25d081b2b78
SHA1512ecdf1ee54f7cd6aaf821b9db8266e2e51c993
SHA256166b077b9e5945bedf19287f60f86e8f071de8ef788934c2a4082422aacd95ee
SHA512fbaa3ea48a7a51b7dca2dabc0535ea7915009808ec1c8676fe2f1874c6c327353b6c3a4005d024143655f136a284e025edbbbe19ded134e021c6ac9cf826c0f5
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Filesize
4.2MB
MD588c9cb2995c96df8d838a12ea9ce4dd0
SHA1bd9036aafaf4bc173d3094eb37c52bef4b6d0b9e
SHA256bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60
SHA512aaf43c0182a621c6677f2f613ed31cd187849c89793d06f91326d39ac99178662daca987a8a03bcd7a2dcb6f10b8e61570b3d9c2d218e05a1194b2e1bd50eb7f
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec