Analysis
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max time kernel
150s -
max time network
155s -
platform
windows11-21h2_x64 -
resource
win11-20240319-en -
resource tags
arch:x64arch:x86image:win11-20240319-enlocale:en-usos:windows11-21h2-x64system -
submitted
27/03/2024, 16:48
Static task
static1
Behavioral task
behavioral1
Sample
a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe
Resource
win10v2004-20240226-en
General
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Target
a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe
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Size
4.1MB
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MD5
b0e6833b5b1a140bd74b8de788f8b631
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SHA1
17d5330eb426fe9fb9bdeccd1d7bd5208acdb773
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SHA256
a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee
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SHA512
4158bd48eca3d4e16896b3f5302321da0ab73db4ad4e23e93c0e0702e61edcc2fa361f68e49b09b32b8820d62024326b8993191908c2c5029b1e4bb07774bdba
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SSDEEP
98304:A2w6smPz2ESXip8Qe6pOnhP/maq5821Ptw/6vAnaohZ6W:b5qE/8QbGhHmhZ6DtZ3
Malware Config
Signatures
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Glupteba payload 22 IoCs
resource yara_rule behavioral2/memory/872-2-0x00000000030D0000-0x00000000039BB000-memory.dmp family_glupteba behavioral2/memory/872-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/872-45-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/872-53-0x00000000030D0000-0x00000000039BB000-memory.dmp family_glupteba behavioral2/memory/908-55-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/872-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/908-88-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/908-99-0x0000000002A80000-0x0000000002E7E000-memory.dmp family_glupteba behavioral2/memory/908-112-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/908-145-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4436-148-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4436-204-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4436-240-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4436-250-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4436-252-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4436-256-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4436-258-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4436-261-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4436-264-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4436-267-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4436-270-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4436-274-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3740 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4436 csrss.exe 648 injector.exe 1232 windefender.exe 1768 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a797-244.dat upx behavioral2/memory/1232-249-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1768-253-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1768-259-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1233663403-1277323514-675434005-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Set value (str) \REGISTRY\USER\S-1-5-21-1233663403-1277323514-675434005-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File 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.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.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 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 248 sc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2732 schtasks.exe 5056 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1471 = "Magadan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-931 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.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\22\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-562 = "SE Asia Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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\22\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs 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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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\22\52C64B7E\@tzres.dll,-1662 = "Bahia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3816 powershell.exe 3816 powershell.exe 872 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 872 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 2896 powershell.exe 2896 powershell.exe 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 3880 powershell.exe 3880 powershell.exe 1524 powershell.exe 1524 powershell.exe 3604 powershell.exe 3604 powershell.exe 4672 powershell.exe 4672 powershell.exe 1656 powershell.exe 1656 powershell.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 4436 csrss.exe 4436 csrss.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 4436 csrss.exe 4436 csrss.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 4436 csrss.exe 4436 csrss.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe 648 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3816 powershell.exe Token: SeDebugPrivilege 872 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Token: SeImpersonatePrivilege 872 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe Token: SeDebugPrivilege 2896 powershell.exe Token: SeDebugPrivilege 3880 powershell.exe Token: SeDebugPrivilege 1524 powershell.exe Token: SeDebugPrivilege 3604 powershell.exe Token: SeDebugPrivilege 4672 powershell.exe Token: SeDebugPrivilege 1656 powershell.exe Token: SeSystemEnvironmentPrivilege 4436 csrss.exe Token: SeSecurityPrivilege 248 sc.exe Token: SeSecurityPrivilege 248 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 872 wrote to memory of 3816 872 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 78 PID 872 wrote to memory of 3816 872 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 78 PID 872 wrote to memory of 3816 872 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 78 PID 908 wrote to memory of 2896 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 83 PID 908 wrote to memory of 2896 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 83 PID 908 wrote to memory of 2896 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 83 PID 908 wrote to memory of 1268 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 85 PID 908 wrote to memory of 1268 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 85 PID 1268 wrote to memory of 3740 1268 cmd.exe 87 PID 1268 wrote to memory of 3740 1268 cmd.exe 87 PID 908 wrote to memory of 3880 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 88 PID 908 wrote to memory of 3880 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 88 PID 908 wrote to memory of 3880 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 88 PID 908 wrote to memory of 1524 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 90 PID 908 wrote to memory of 1524 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 90 PID 908 wrote to memory of 1524 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 90 PID 908 wrote to memory of 4436 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 92 PID 908 wrote to memory of 4436 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 92 PID 908 wrote to memory of 4436 908 a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe 92 PID 4436 wrote to memory of 3604 4436 csrss.exe 93 PID 4436 wrote to memory of 3604 4436 csrss.exe 93 PID 4436 wrote to memory of 3604 4436 csrss.exe 93 PID 4436 wrote to memory of 4672 4436 csrss.exe 99 PID 4436 wrote to memory of 4672 4436 csrss.exe 99 PID 4436 wrote to memory of 4672 4436 csrss.exe 99 PID 4436 wrote to memory of 1656 4436 csrss.exe 101 PID 4436 wrote to memory of 1656 4436 csrss.exe 101 PID 4436 wrote to memory of 1656 4436 csrss.exe 101 PID 4436 wrote to memory of 648 4436 csrss.exe 103 PID 4436 wrote to memory of 648 4436 csrss.exe 103 PID 1232 wrote to memory of 384 1232 windefender.exe 109 PID 1232 wrote to memory of 384 1232 windefender.exe 109 PID 1232 wrote to memory of 384 1232 windefender.exe 109 PID 384 wrote to memory of 248 384 cmd.exe 110 PID 384 wrote to memory of 248 384 cmd.exe 110 PID 384 wrote to memory of 248 384 cmd.exe 110 -
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\a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe"C:\Users\Admin\AppData\Local\Temp\a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:872 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3816
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C:\Users\Admin\AppData\Local\Temp\a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.exe"C:\Users\Admin\AppData\Local\Temp\a6d6db330de2463e562342bcc2527e50cc8425adb7bdc1e9a6df70bc17fc0aee.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:908 -
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:2896
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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:1268 -
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:3740
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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:3880
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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:1524
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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:4436 -
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:3604
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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:2732
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1192
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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:4672
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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:1656
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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:648
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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:5056
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1232 -
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:384 -
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:248
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1768
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
MD5b89639de0c453186b010462c442e0c8f
SHA1c6737591c0403c14b26afa32fbe3898b222884be
SHA2567fb76ef489b0dfc5ca63bc341594829eddda3c368fb66cca5521085c85b0729a
SHA5128d2fb5abf6aeb6b79846cd34a79b852cbe2f29be0e53b63f74175bb1c57fe905ef00502e7cd5a5215a802c69f733eef07d109ccdb2170495ae1a6d76dd981d84
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bfe9bfaec2e54ec3bd0c39d373690221
SHA1fe9be0429d027a7572d14f9b7832877db8a9f972
SHA25668216f6db28e5e10f0e4a813a49e189e6f602f0aa7fed771acfa6a2cc80a52e5
SHA51265a813c862aa1b393bf3ba455a162c10613b63dd2dcf012694a675bdfe3f98c44141bc62fb333bec55a0fd111217c332a930c216e22ce4e4f5a7b2590171f64c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5dbb0c6d76796ef78c1bdf180c914c700
SHA1f5c6cc34e38bbf8e69777e304d63a16255c46150
SHA256557aed26dbb829afc98cdf31c6e0a0ebcf892f36d387cab081bb474be054f9f0
SHA512f2a51216d0fafea13377cdfbd606c02670d5976dc50f984b4ea0c5672a61371d61a7c1b100c4dd1c5bfe11eba3f458a431635ecfcc7cff2c04453cb38ad514fe
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bcfb361d3ad171c8b002ae03f391a744
SHA123f6b69b601d020933865a33d6b5021fc0e6158b
SHA256a4b55fbb49db9532fae6b3fee387831148004a0c4ea1915c51ac7c1763023c59
SHA512a0bf7e6bfafaf83723e60469e176a2a894a0163a1db5f1a207ec67774781467a17f88d80e90dc295de09cfad6b43dad42594f4e34f75fac6e45648d435a92a19
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58474dfbaeffb15ab283eb1758d44bdef
SHA1a54416edaa97e9a04276dd8d622968a1c73329ab
SHA256f80357b066612545d18f8e2ad4cf5cf12b5eebb2980caf91f0b983ddccdeaad4
SHA51267a1f2b546b9d20908a69bf3abe758c6ef0cd43e3c3db58d3c8c6b34e8ac1ed406c22490010884914c02d8af1a64e6f6d3c9e9f688ee8fe2224a32cc877f4acd
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Filesize
1.2MB
MD56147ee1303d2b5a74f2e15fb7ba21fc7
SHA1f88ab0c46e4ce3161bd41f94f019fa9caf68d40f
SHA2568bf0ec4ea0db4906198718b6af70ce4f601cfc3481a103ecbae9a29520485beb
SHA51273b8c85cc3264b264eee738042c4f821b51ad7052b867994d14f7a61791d0c7a6b56a40da7bc18780edc38263d8e978b0e8813682d20eed2662d1058c766ee73
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Filesize
1.4MB
MD5873e2bd90ce7a718885c219ff60543b9
SHA154832f5a56ae435f9e3f009d99f8af8c639c6d72
SHA256d77dff2fb702d87a8031173259536bf6cf1051154d1ca3dcc9aa729f3e724b04
SHA5125a6b60a6071113312390bab8444fc96a38b9b97285af1da9e074ff02918f0bed9e0de0c1940a529cba122cbaa0fe38a56bcfcdf1386445213e251b3616379362
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec