Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
16/05/2024, 12:39
Static task
static1
Behavioral task
behavioral1
Sample
62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe
Resource
win10v2004-20240426-en
General
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Target
62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe
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Size
4.1MB
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MD5
8f66157297e86c7ac5093624d6725f2e
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SHA1
0e4557927ab4e552abdcd09cd00f416cd11e4344
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SHA256
62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f
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SHA512
d0cd8969efc646051eb7fa5b3728ea5c7d4a3747f753ca909877a780171b6d738cbea1e51f434af79cdb02e5de7d728876764bb72418d9966849882bbf15e9e7
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SSDEEP
98304:0l9GTbLtL99uWlQGfUFGGhNMfnjCzwWu2csDCx3z+tr:ZT3oWlQMUAMlWxj+tr
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral1/memory/1388-2-0x0000000002D30000-0x000000000361B000-memory.dmp family_glupteba behavioral1/memory/1388-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1388-55-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1388-56-0x0000000002D30000-0x000000000361B000-memory.dmp family_glupteba behavioral1/memory/1664-213-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4440-220-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4440-231-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4440-234-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4440-237-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4440-240-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4440-243-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4440-246-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4440-249-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4440-252-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4440-255-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4440-258-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4440-261-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4440-264-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3224 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4440 csrss.exe 1228 injector.exe 3880 windefender.exe 3464 windefender.exe -
resource yara_rule behavioral1/files/0x0008000000023423-228.dat upx behavioral1/memory/3464-230-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3880-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3880-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3464-233-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3464-239-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe File created C:\Windows\rss\csrss.exe 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1452 sc.exe -
pid Process 372 powershell.exe 2332 powershell.exe 1620 powershell.exe 4552 powershell.exe 2056 powershell.exe 2636 powershell.exe 1056 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2012 schtasks.exe 4808 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.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\CA 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,-462 = "Afghanistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-542 = "Myanmar 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" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.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\@tzres.dll,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.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,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs 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\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates 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\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-622 = "Korea Standard Time" windefender.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,-82 = "Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2631 = "Norfolk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2892 = "Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed 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,-371 = "Jerusalem Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 372 powershell.exe 372 powershell.exe 1388 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 1388 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 2332 powershell.exe 2332 powershell.exe 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 1620 powershell.exe 1620 powershell.exe 4552 powershell.exe 4552 powershell.exe 4552 powershell.exe 2056 powershell.exe 2056 powershell.exe 2636 powershell.exe 2636 powershell.exe 1056 powershell.exe 1056 powershell.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 4440 csrss.exe 4440 csrss.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 4440 csrss.exe 4440 csrss.exe 1228 injector.exe 1228 injector.exe 4440 csrss.exe 4440 csrss.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe 1228 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 372 powershell.exe Token: SeDebugPrivilege 1388 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Token: SeImpersonatePrivilege 1388 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Token: SeDebugPrivilege 2332 powershell.exe Token: SeDebugPrivilege 1620 powershell.exe Token: SeDebugPrivilege 4552 powershell.exe Token: SeDebugPrivilege 2056 powershell.exe Token: SeDebugPrivilege 2636 powershell.exe Token: SeDebugPrivilege 1056 powershell.exe Token: SeSystemEnvironmentPrivilege 4440 csrss.exe Token: SeSecurityPrivilege 1452 sc.exe Token: SeSecurityPrivilege 1452 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1388 wrote to memory of 372 1388 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 88 PID 1388 wrote to memory of 372 1388 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 88 PID 1388 wrote to memory of 372 1388 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 88 PID 1664 wrote to memory of 2332 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 98 PID 1664 wrote to memory of 2332 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 98 PID 1664 wrote to memory of 2332 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 98 PID 1664 wrote to memory of 1608 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 100 PID 1664 wrote to memory of 1608 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 100 PID 1608 wrote to memory of 3224 1608 cmd.exe 102 PID 1608 wrote to memory of 3224 1608 cmd.exe 102 PID 1664 wrote to memory of 1620 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 105 PID 1664 wrote to memory of 1620 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 105 PID 1664 wrote to memory of 1620 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 105 PID 1664 wrote to memory of 4552 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 107 PID 1664 wrote to memory of 4552 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 107 PID 1664 wrote to memory of 4552 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 107 PID 1664 wrote to memory of 4440 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 109 PID 1664 wrote to memory of 4440 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 109 PID 1664 wrote to memory of 4440 1664 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 109 PID 4440 wrote to memory of 2056 4440 csrss.exe 110 PID 4440 wrote to memory of 2056 4440 csrss.exe 110 PID 4440 wrote to memory of 2056 4440 csrss.exe 110 PID 4440 wrote to memory of 2636 4440 csrss.exe 116 PID 4440 wrote to memory of 2636 4440 csrss.exe 116 PID 4440 wrote to memory of 2636 4440 csrss.exe 116 PID 4440 wrote to memory of 1056 4440 csrss.exe 118 PID 4440 wrote to memory of 1056 4440 csrss.exe 118 PID 4440 wrote to memory of 1056 4440 csrss.exe 118 PID 4440 wrote to memory of 1228 4440 csrss.exe 120 PID 4440 wrote to memory of 1228 4440 csrss.exe 120 PID 3880 wrote to memory of 1224 3880 windefender.exe 126 PID 3880 wrote to memory of 1224 3880 windefender.exe 126 PID 3880 wrote to memory of 1224 3880 windefender.exe 126 PID 1224 wrote to memory of 1452 1224 cmd.exe 127 PID 1224 wrote to memory of 1452 1224 cmd.exe 127 PID 1224 wrote to memory of 1452 1224 cmd.exe 127 -
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\62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe"C:\Users\Admin\AppData\Local\Temp\62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1388 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:372
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C:\Users\Admin\AppData\Local\Temp\62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe"C:\Users\Admin\AppData\Local\Temp\62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.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:1664 -
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:2332
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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:1608 -
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:3224
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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:1620
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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:4552
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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:4440 -
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:2056
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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:2012
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2420
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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:2636
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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:1056
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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:1228
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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:4808
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3880 -
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:1224 -
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:1452
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3464
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5315f80424379fa9fa972884c9dc3240f
SHA16ea0923c032bcb1cbd6bc6ffeaf510eb63123012
SHA256e70b65aa4be20b0e2f4fa4cf8747cec7d049911c35d6fcfb61a9cebe484c60ea
SHA5127f609802cbff12b926ac7f251faa47f13111f766baa22fff57c52106c5ba469d281e10ddc058ade8cd1caa3f0d85f127a5aae62d594e0205237a3020013bce79
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD502ee9c6d4676f3f65e652af93dc08b22
SHA143eca459e52418ed4defdcffe5d4bd83e7fe0e8f
SHA2561435629fc7b2c9852add1cd0a3dc7ca0025c6ef65d399c1400d2493f82920af9
SHA5122c3e5284dd8b9c1b1c7b77955664aae5881727f1f35df39bc12f4022b880a53247be84ec5641abc6d8cd54a77b4cf48d70de41587332def996b38298af224fcc
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c4637928cb5db1c2f5b4553c746a5638
SHA10e640198671778998402d0a3b54617dac5057b3a
SHA25602cf1b5fa67f5154d14f361f66912222a4a8882debbf77ec8d238fb90c02364e
SHA512c2dabf7907310e8e737355f31086f4ab1c99ece5b631f79693bfa85da4230686cf955d1e5a8836b93d6e18d25fdfb2ec050f0f221a1b3fe4aded0df8882ca1b9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5873c04b0b66aeb54c38be56d905863bc
SHA1014aa9dfcab656863fa5e80402b5209b68f002ee
SHA256ef22b9eabe16d1f9d82cbc876ce4f7d7e1e8ce1f0ca06a0d3a09a5d84642c3a3
SHA512030048b0beab608a25030cea95d9c0ab3908b1f6eab03f0142c7c784a8038a8021225b8b1ed684a7e6b53246d798e4438e2310ecd4936cb77b988f862d28e14e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e1f854f8713f8f1e98024641dd5a5563
SHA10346c1192dd38b2dd762e3f3944db59480d13f40
SHA256d5a98b08e08934be211c91057593d557eb619096b7f7f2bb94d14abe9319a85d
SHA512b651f415f38def2de131ca70b53896379bf744f789d6c10f8b3429f2ac28b2c11b91bb675282d9bc8dcc0ce31b2f99e794843649f1eeff5ad1be61c1a0d02dfe
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Filesize
4.1MB
MD58f66157297e86c7ac5093624d6725f2e
SHA10e4557927ab4e552abdcd09cd00f416cd11e4344
SHA25662b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f
SHA512d0cd8969efc646051eb7fa5b3728ea5c7d4a3747f753ca909877a780171b6d738cbea1e51f434af79cdb02e5de7d728876764bb72418d9966849882bbf15e9e7
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec