Analysis
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max time kernel
149s -
max time network
133s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
16-05-2024 10:20
Static task
static1
Behavioral task
behavioral1
Sample
3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe
Resource
win10v2004-20240508-en
General
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Target
3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe
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Size
4.1MB
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MD5
37661e453fc7647eddf5f9e9b3778aa0
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SHA1
ed7b3cc6d552c45befdbfc0fcf158ee591645d57
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SHA256
3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7
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SHA512
fcd7ffd51ebcfaa445ac08aa8201a7103df03036e0ec8b24a5dbf806232ac3a44cb107b3db1d3916746790eb6969d4179afb0ce618649c3ca651ab4f477e6f8d
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SSDEEP
98304:dBH5QtHgtXZGwxAeX68LG3wNCsYjHyiS0gsLIyJOWEFSdaDQG3a9ntG:dBZQtHgtXlxHq4G3ixkyiJTOnSQDy9ng
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/4068-2-0x0000000002EB0000-0x000000000379B000-memory.dmp family_glupteba behavioral2/memory/4068-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4068-51-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4068-52-0x0000000002EB0000-0x000000000379B000-memory.dmp family_glupteba behavioral2/memory/2472-124-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2472-200-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-206-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2472-207-0x0000000002A30000-0x0000000002E2B000-memory.dmp family_glupteba behavioral2/memory/4660-217-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-219-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-222-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-225-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-229-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-231-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-234-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-237-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-241-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-243-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-246-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 1860 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 4660 csrss.exe 4624 injector.exe 1316 windefender.exe 1372 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000400000002aa74-210.dat upx behavioral2/memory/1316-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1316-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1372-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1372-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (str) \REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe -
Drops file in Windows directory 4 IoCs
Processes:
3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe File created C:\Windows\rss\csrss.exe 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.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 1432 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 5100 powershell.exe 1908 powershell.exe 2452 powershell.exe 396 powershell.exe 3040 powershell.exe 2240 powershell.exe 4836 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 4776 schtasks.exe 3896 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exe3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exewindefender.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-462 = "Afghanistan 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,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1411 = "Syria Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs 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\2a\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.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\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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,-441 = "Arabian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-351 = "FLE Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.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,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1892 = "Russia TZ 3 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-302 = "Romance Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exepowershell.exe3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 2452 powershell.exe 2452 powershell.exe 4068 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 4068 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 396 powershell.exe 396 powershell.exe 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 3040 powershell.exe 3040 powershell.exe 2240 powershell.exe 2240 powershell.exe 4836 powershell.exe 4836 powershell.exe 5100 powershell.exe 5100 powershell.exe 1908 powershell.exe 1908 powershell.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4660 csrss.exe 4660 csrss.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4660 csrss.exe 4660 csrss.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4660 csrss.exe 4660 csrss.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe 4624 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 2452 powershell.exe Token: SeDebugPrivilege 4068 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Token: SeImpersonatePrivilege 4068 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe Token: SeDebugPrivilege 396 powershell.exe Token: SeDebugPrivilege 3040 powershell.exe Token: SeDebugPrivilege 2240 powershell.exe Token: SeDebugPrivilege 4836 powershell.exe Token: SeDebugPrivilege 5100 powershell.exe Token: SeDebugPrivilege 1908 powershell.exe Token: SeSystemEnvironmentPrivilege 4660 csrss.exe Token: SeSecurityPrivilege 1432 sc.exe Token: SeSecurityPrivilege 1432 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 4068 wrote to memory of 2452 4068 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 81 PID 4068 wrote to memory of 2452 4068 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 81 PID 4068 wrote to memory of 2452 4068 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 81 PID 2472 wrote to memory of 396 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 86 PID 2472 wrote to memory of 396 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 86 PID 2472 wrote to memory of 396 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 86 PID 2472 wrote to memory of 536 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 88 PID 2472 wrote to memory of 536 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 88 PID 536 wrote to memory of 1860 536 cmd.exe 90 PID 536 wrote to memory of 1860 536 cmd.exe 90 PID 2472 wrote to memory of 3040 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 91 PID 2472 wrote to memory of 3040 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 91 PID 2472 wrote to memory of 3040 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 91 PID 2472 wrote to memory of 2240 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 93 PID 2472 wrote to memory of 2240 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 93 PID 2472 wrote to memory of 2240 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 93 PID 2472 wrote to memory of 4660 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 95 PID 2472 wrote to memory of 4660 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 95 PID 2472 wrote to memory of 4660 2472 3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe 95 PID 4660 wrote to memory of 4836 4660 csrss.exe 96 PID 4660 wrote to memory of 4836 4660 csrss.exe 96 PID 4660 wrote to memory of 4836 4660 csrss.exe 96 PID 4660 wrote to memory of 5100 4660 csrss.exe 101 PID 4660 wrote to memory of 5100 4660 csrss.exe 101 PID 4660 wrote to memory of 5100 4660 csrss.exe 101 PID 4660 wrote to memory of 1908 4660 csrss.exe 104 PID 4660 wrote to memory of 1908 4660 csrss.exe 104 PID 4660 wrote to memory of 1908 4660 csrss.exe 104 PID 4660 wrote to memory of 4624 4660 csrss.exe 106 PID 4660 wrote to memory of 4624 4660 csrss.exe 106 PID 1316 wrote to memory of 4876 1316 windefender.exe 117 PID 1316 wrote to memory of 4876 1316 windefender.exe 117 PID 1316 wrote to memory of 4876 1316 windefender.exe 117 PID 4876 wrote to memory of 1432 4876 cmd.exe 118 PID 4876 wrote to memory of 1432 4876 cmd.exe 118 PID 4876 wrote to memory of 1432 4876 cmd.exe 118 -
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\3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe"C:\Users\Admin\AppData\Local\Temp\3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4068 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2452
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C:\Users\Admin\AppData\Local\Temp\3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.exe"C:\Users\Admin\AppData\Local\Temp\3a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7.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:2472 -
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:396
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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:536 -
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:1860
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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:3040
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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:2240
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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:4660 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4836
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4776
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3892
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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:5100
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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:1908
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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:4624
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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:3896
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1316 -
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:4876 -
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:1432
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1372
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
MD574a5a744087cdd23f809562428b67caf
SHA184d10a14737a064f31a670e289d98bfd832e72f6
SHA256ebe58f8b30d5b09d25ae6af24d87a1c45dbd028ddafc25c9774840f151c05769
SHA512fde7ba475731e53bc1326b6b9dfa9f960b17895ece383c5fc4713809ae174539b0c3309ab731e963fb59065b4629ebe0bcc13043df15bf0d943ce5f79cddfd17
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ab0334580951647271493082023e63eb
SHA1c791e4b36c8c1188f5fb6b3ca624915f93fa5d51
SHA256784b518ba7602e8f438e697a5a9949874cfcdf0eb44b0d3b07f35459adcffbdd
SHA5125d234d8eb1ee9ba434ca41b6904a032ef1cd08e9a2250407e243c00d0379bbec61f4981cbb810e52f2a11ef6d6c0fa4d75964179afef0abd4f37e0904ba5d579
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b31b9144239fd64793c0d646719fb486
SHA12fe3fc43703c0c4e7fc7ddcfb79ada61e12154e9
SHA256c607d2142a540cf7b3e47f55e18c4410d573b0f42e0b4116d082370feb75788f
SHA51260bfdd95159c00e3010f5d456383fc1c9f7cee391e96f6414461485712c7d1f0794203770b312fdd0e9ed364f4f8c351f4669c500fdf41c07941e1bcba4c235a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a1face9d3ab399a1b3ac9d3f37c94249
SHA114d97b58e8e72c56e5718e5ab5df4e2d3df11ca6
SHA2560b6bd6922ca914f95d2893988fc29a5516e91f1bb40dd44b02c22897fac31841
SHA512cc812d046438470cc1159e9631ad57ac4e9c9fecf57ee01c1c8e6a64b0540f65099338c6720b6f53d50d9f90b95129e67d61e43553b380c484653f5660db5c9b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54b3052101f32061748bb57eb494f6b47
SHA1e6eee647c585de6547989f672f49119f2676ff56
SHA2562ab784ad5a25a1fd858cc438b7954227e39b9b4500b94706e71ee1c795acfb94
SHA51242061563c04be31325e94de42dda8365e6020457e072211f51178e30e36936cc91647197e911cc8cca788b9511506f877c9ba57a8769d0c558b7a3814a0e570c
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Filesize
4.1MB
MD537661e453fc7647eddf5f9e9b3778aa0
SHA1ed7b3cc6d552c45befdbfc0fcf158ee591645d57
SHA2563a4298139a4b2c70379737b8abfdae93c44a3650d205c0773c3e6e69c78ef5b7
SHA512fcd7ffd51ebcfaa445ac08aa8201a7103df03036e0ec8b24a5dbf806232ac3a44cb107b3db1d3916746790eb6969d4179afb0ce618649c3ca651ab4f477e6f8d
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec