Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 14:03
Static task
static1
Behavioral task
behavioral1
Sample
388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe
Resource
win10v2004-20240426-en
General
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Target
388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe
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Size
4.1MB
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MD5
7614be9a485e807a4162b12c4b88dbd1
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SHA1
a158b0c237b3e8fab7d6c1a8915e6d9e9f77ab28
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SHA256
388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1
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SHA512
435395a68dd33b455930aafc0b2308a0aedcf2beca6f12d75ede5794308370a4d3cee734da1e0b13243e2885c73d1526afb62b78be01e5c705d345b5005a53b6
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SSDEEP
98304:4uOdAWE/bfbxbxBimum48oJjLrUZhWcgWy75MTps2CObMUZCzBSQ:4uOpIddBi3V8Ojm7gWylM939Cd
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/4028-2-0x0000000004A50000-0x000000000533B000-memory.dmp family_glupteba behavioral2/memory/4028-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1528-123-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4028-126-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4028-171-0x0000000004A50000-0x000000000533B000-memory.dmp family_glupteba behavioral2/memory/4028-195-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2460-202-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/2460-213-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/2460-216-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/2460-219-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/2460-222-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/2460-225-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/2460-228-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/2460-231-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/2460-234-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/2460-237-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/2460-240-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/2460-243-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/2460-246-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2436 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 2460 csrss.exe 3944 injector.exe 3580 windefender.exe 1692 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002a9f8-205.dat upx behavioral2/memory/3580-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1692-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3580-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1692-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1692-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\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:
388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe -
Drops file in Windows directory 4 IoCs
Processes:
388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.execsrss.exedescription ioc Process File created C:\Windows\rss\csrss.exe 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid Process 4776 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 228 powershell.exe 4500 powershell.exe 956 powershell.exe 2848 powershell.exe 2740 powershell.exe 3840 powershell.exe 3760 powershell.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 2116 schtasks.exe 888 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.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,-431 = "Iran Daylight Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates 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\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.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,-1872 = "Russia TZ 7 Standard Time" windefender.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,-131 = "US Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.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,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.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\@tzres.dll,-501 = "Nepal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2771 = "Omsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-364 = "Middle East Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.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,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.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\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-511 = "Central Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs 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,-792 = "SA Western Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-631 = "Tokyo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.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,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.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\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exepowershell.exe388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 3840 powershell.exe 3840 powershell.exe 4028 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 4028 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 3760 powershell.exe 3760 powershell.exe 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 228 powershell.exe 228 powershell.exe 4500 powershell.exe 4500 powershell.exe 956 powershell.exe 956 powershell.exe 2848 powershell.exe 2848 powershell.exe 2740 powershell.exe 2740 powershell.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 2460 csrss.exe 2460 csrss.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 2460 csrss.exe 2460 csrss.exe 3944 injector.exe 3944 injector.exe 2460 csrss.exe 2460 csrss.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe 3944 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 3840 powershell.exe Token: SeDebugPrivilege 4028 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Token: SeImpersonatePrivilege 4028 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe Token: SeDebugPrivilege 3760 powershell.exe Token: SeDebugPrivilege 228 powershell.exe Token: SeDebugPrivilege 4500 powershell.exe Token: SeDebugPrivilege 956 powershell.exe Token: SeDebugPrivilege 2848 powershell.exe Token: SeDebugPrivilege 2740 powershell.exe Token: SeSystemEnvironmentPrivilege 2460 csrss.exe Token: SeSecurityPrivilege 4776 sc.exe Token: SeSecurityPrivilege 4776 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 4028 wrote to memory of 3840 4028 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 82 PID 4028 wrote to memory of 3840 4028 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 82 PID 4028 wrote to memory of 3840 4028 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 82 PID 1528 wrote to memory of 3760 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 88 PID 1528 wrote to memory of 3760 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 88 PID 1528 wrote to memory of 3760 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 88 PID 1528 wrote to memory of 788 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 90 PID 1528 wrote to memory of 788 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 90 PID 788 wrote to memory of 2436 788 cmd.exe 92 PID 788 wrote to memory of 2436 788 cmd.exe 92 PID 1528 wrote to memory of 228 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 93 PID 1528 wrote to memory of 228 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 93 PID 1528 wrote to memory of 228 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 93 PID 1528 wrote to memory of 4500 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 95 PID 1528 wrote to memory of 4500 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 95 PID 1528 wrote to memory of 4500 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 95 PID 1528 wrote to memory of 2460 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 97 PID 1528 wrote to memory of 2460 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 97 PID 1528 wrote to memory of 2460 1528 388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe 97 PID 2460 wrote to memory of 956 2460 csrss.exe 98 PID 2460 wrote to memory of 956 2460 csrss.exe 98 PID 2460 wrote to memory of 956 2460 csrss.exe 98 PID 2460 wrote to memory of 2848 2460 csrss.exe 104 PID 2460 wrote to memory of 2848 2460 csrss.exe 104 PID 2460 wrote to memory of 2848 2460 csrss.exe 104 PID 2460 wrote to memory of 2740 2460 csrss.exe 106 PID 2460 wrote to memory of 2740 2460 csrss.exe 106 PID 2460 wrote to memory of 2740 2460 csrss.exe 106 PID 2460 wrote to memory of 3944 2460 csrss.exe 108 PID 2460 wrote to memory of 3944 2460 csrss.exe 108 PID 3580 wrote to memory of 4660 3580 windefender.exe 114 PID 3580 wrote to memory of 4660 3580 windefender.exe 114 PID 3580 wrote to memory of 4660 3580 windefender.exe 114 PID 4660 wrote to memory of 4776 4660 cmd.exe 115 PID 4660 wrote to memory of 4776 4660 cmd.exe 115 PID 4660 wrote to memory of 4776 4660 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\388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe"C:\Users\Admin\AppData\Local\Temp\388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4028 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3840
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C:\Users\Admin\AppData\Local\Temp\388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.exe"C:\Users\Admin\AppData\Local\Temp\388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1.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:1528 -
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:3760
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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:788 -
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:2436
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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:228
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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:4500
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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:2460 -
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:956
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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:2116
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1016
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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:2848
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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:2740
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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:3944
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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:888
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3580 -
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:4660 -
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:4776
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1692
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
MD5abca4e3ce816b88d5777456033a1623f
SHA1d9acc2f583cf13e8dbf0333fa77e0a7002030620
SHA2561bc5afa9944f2d82fc9a72ea501c2660f31aad8b77cef2d4c5097ccb40804833
SHA512ec52f2ba91a3aece7e6ea868c3986f2f6038152ffc3c206207c9883d77404af6cae17b8ea2be7a60ae52ad17a25b8f61e61d66ca893ba6e87c4c272e796c7c3a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56fd7fd7d2187c745d59934adcc483d2a
SHA1bb58cffdd681f7a26ad19028f730037bbf417fe3
SHA2565893edfba1f27c10cff96517217b2abba4af10a7bbbc9ecb5e7d04296ff4cea9
SHA512bac429ada223a29e09e2340b409154dcd4a1c6bc75ae95008e4889f8688838e1e08f7bf94225c8f72994b0fc33f528ba7db408827e39bbbebb6c1525ca8962c5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD596af13909b038fe8e303cee668b1a322
SHA1ce7fe3f14b17e71aa7b9b12f996ce478f993e520
SHA2566e0e64a13c1777daae29866a3ec948118485acc7deb25608cee881ee95b33445
SHA512f2042674aa4f73fd1008ef46696bb0266331cbd3baf795c3ed8e6fd6a0b607b33915b333db94c58e86a5c6a96c21071c729a2d82897af685230cccb62aacbddb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c3f8380ef9f0d1866c76af3fc5fde8e0
SHA1c79a51dcd474decd8f2072a3ac16c874ed63cbd9
SHA2562224786c6c479fb766d25abf2f587e141af3e7ffd19e43be3162506d5393f6d4
SHA512e01fa4d4e760e29df738b557340ddffb58518d4f2231381b9f0d59120498861b2ff47e0a7af9dbc716ffaf0dfce9d92ddb145c1eaa9ba51bc9674d331577c80b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD581f97a5d549d74eb45ca11929a7a3846
SHA18f7b1f5a07d25bb783dcbf94a0f6bb3ca967140c
SHA2568ce4a3e3ff62bf3b7bfeda77e08d803e8e177b4c6af31e6ddd6c2a61058569a4
SHA512f946515f7d090ee757f18b9fca4b4e14d0dcbefb927f34b0b6bc656efc53f0366ed424681341a4b992c6c48dbd92956733a2a834e6e276fc2dc746a1c81ce36b
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Filesize
4.1MB
MD57614be9a485e807a4162b12c4b88dbd1
SHA1a158b0c237b3e8fab7d6c1a8915e6d9e9f77ab28
SHA256388923b1396ae01a11518e8ee062c136e5c1e3bbca7d3d7af1e34cfb185e96e1
SHA512435395a68dd33b455930aafc0b2308a0aedcf2beca6f12d75ede5794308370a4d3cee734da1e0b13243e2885c73d1526afb62b78be01e5c705d345b5005a53b6
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec