Analysis
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max time kernel
150s -
max time network
137s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-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 behavioral2/memory/656-2-0x0000000002E50000-0x000000000373B000-memory.dmp family_glupteba behavioral2/memory/656-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/656-75-0x0000000002E50000-0x000000000373B000-memory.dmp family_glupteba behavioral2/memory/656-73-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3684-136-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4940-202-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4940-215-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4940-219-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4940-222-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4940-225-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4940-229-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4940-233-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4940-238-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4940-241-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4940-245-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4940-249-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4940-254-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4940-257-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 5024 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4940 csrss.exe 3596 injector.exe 4496 windefender.exe 3440 windefender.exe -
resource yara_rule behavioral2/files/0x001a00000002ab26-207.dat upx behavioral2/memory/4496-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3440-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4496-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3440-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3440-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\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\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 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.
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 5108 sc.exe -
pid Process 4444 powershell.exe 4516 powershell.exe 3276 powershell.exe 860 powershell.exe 400 powershell.exe 4204 powershell.exe 5104 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 4936 schtasks.exe 2656 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\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\2a\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.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\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.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,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3141 = "South Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-511 = "Central Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-372 = "Jerusalem Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time" windefender.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,-435 = "Georgian Standard Time" 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\Certificates 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\2a\52C64B7E\@tzres.dll,-51 = "Greenland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-334 = "Jordan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.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\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,-2161 = "Altai Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.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\@tzres.dll,-2161 = "Altai Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.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 -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5104 powershell.exe 5104 powershell.exe 656 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 656 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 4444 powershell.exe 4444 powershell.exe 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 4516 powershell.exe 4516 powershell.exe 3276 powershell.exe 3276 powershell.exe 860 powershell.exe 860 powershell.exe 400 powershell.exe 400 powershell.exe 4204 powershell.exe 4204 powershell.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 4940 csrss.exe 4940 csrss.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 4940 csrss.exe 4940 csrss.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 4940 csrss.exe 4940 csrss.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe 3596 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 5104 powershell.exe Token: SeDebugPrivilege 656 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Token: SeImpersonatePrivilege 656 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe Token: SeDebugPrivilege 4444 powershell.exe Token: SeDebugPrivilege 4516 powershell.exe Token: SeDebugPrivilege 3276 powershell.exe Token: SeDebugPrivilege 860 powershell.exe Token: SeDebugPrivilege 400 powershell.exe Token: SeDebugPrivilege 4204 powershell.exe Token: SeSystemEnvironmentPrivilege 4940 csrss.exe Token: SeSecurityPrivilege 5108 sc.exe Token: SeSecurityPrivilege 5108 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 656 wrote to memory of 5104 656 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 81 PID 656 wrote to memory of 5104 656 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 81 PID 656 wrote to memory of 5104 656 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 81 PID 3684 wrote to memory of 4444 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 86 PID 3684 wrote to memory of 4444 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 86 PID 3684 wrote to memory of 4444 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 86 PID 3684 wrote to memory of 4156 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 88 PID 3684 wrote to memory of 4156 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 88 PID 4156 wrote to memory of 5024 4156 cmd.exe 90 PID 4156 wrote to memory of 5024 4156 cmd.exe 90 PID 3684 wrote to memory of 4516 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 91 PID 3684 wrote to memory of 4516 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 91 PID 3684 wrote to memory of 4516 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 91 PID 3684 wrote to memory of 3276 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 93 PID 3684 wrote to memory of 3276 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 93 PID 3684 wrote to memory of 3276 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 93 PID 3684 wrote to memory of 4940 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 95 PID 3684 wrote to memory of 4940 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 95 PID 3684 wrote to memory of 4940 3684 62b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f.exe 95 PID 4940 wrote to memory of 860 4940 csrss.exe 96 PID 4940 wrote to memory of 860 4940 csrss.exe 96 PID 4940 wrote to memory of 860 4940 csrss.exe 96 PID 4940 wrote to memory of 400 4940 csrss.exe 101 PID 4940 wrote to memory of 400 4940 csrss.exe 101 PID 4940 wrote to memory of 400 4940 csrss.exe 101 PID 4940 wrote to memory of 4204 4940 csrss.exe 104 PID 4940 wrote to memory of 4204 4940 csrss.exe 104 PID 4940 wrote to memory of 4204 4940 csrss.exe 104 PID 4940 wrote to memory of 3596 4940 csrss.exe 106 PID 4940 wrote to memory of 3596 4940 csrss.exe 106 PID 4496 wrote to memory of 3552 4496 windefender.exe 112 PID 4496 wrote to memory of 3552 4496 windefender.exe 112 PID 4496 wrote to memory of 3552 4496 windefender.exe 112 PID 3552 wrote to memory of 5108 3552 cmd.exe 113 PID 3552 wrote to memory of 5108 3552 cmd.exe 113 PID 3552 wrote to memory of 5108 3552 cmd.exe 113 -
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:656 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5104
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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:3684 -
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:4444
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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:4156 -
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:5024
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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:4516
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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:3276
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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:4940 -
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:860
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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:4936
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3144
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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:400
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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:4204
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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:3596
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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:2656
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4496 -
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:3552 -
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:5108
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3440
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
MD5178dbbe3d636982b4b9f4ba8b557ac0b
SHA1eb6540697c71f1b99e03decf5e45b48069dab865
SHA256a352a67ae9aa4c9d7160e84f3e394556f37cde5a936b425b146e88dfe44214a2
SHA51226c9805347fe20fdc487daadfb03df5b2e2611b23056970c6b2e194914e5ccc40f5f83e60567d5828a692ad4ddc3e1de9688e7ac2d135584182c98b849e619f3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54d3ba26c448d71c2e3e87b306feb2fe8
SHA10e65abf61ea55b8bef512e9d9de9f0f5cd7e774f
SHA256b69e1eb8a16b1ca4f17adee4c5978c8233f0271ec2d3dd2b9f2b011837a3cb88
SHA512f3795e0be765789b679f8b64f2cce7c19a46b1f74a001085e3cc8a661fc5119e0dabcf6e5d87f1910d9a4700f62976216f04e175fa32c9b2fd8f1c3d2f21dac6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5807dbb56606a7221967d776df53af2fd
SHA1193b296fafa9b35ccbd52386a949b1e7db40551a
SHA25676b436f6d7503b5e9d42ac8eaf556b72cc40e16f8cd4f2ccc3ed6dc5705195af
SHA512fb089b6bf0beaa2f4c68865e1e7ec6b51693a1bd0974e6ff23034864a0bf9903f3d029cc36d24cdb6cb7e1a4e5ffe730318402d9ac6f6cbc4510a9c0cfa84589
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55ec9efd4f16e8a3a6734e70a506ac57b
SHA14ba2b5844397d185920a58e83dd4100606439d5b
SHA2561168eaadb686d497387f5eed3eec1309b317af66062b117b4b00133f9fe746ee
SHA5125732cda765ffa038e9084dc5eb7ae20c5f66ebe6c6bdf1aa17fd17963043c327e09b9b96e0c7941628e513da9c4cf9b8a81bb325566e26b5487798915cdfc351
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55127d19ad8e809ab8c52cf7e2012635b
SHA19914e7583b8fa19601df5725e189d69048316c5e
SHA256b95bbd86126ac5f04083d7e046d25d7739ff08cdc6c0ef4ae368f0b932c0c593
SHA5121387a7f5e850f4d04f873fef6d2a9822b3ecf70ff4f5d366ced285ae8ce15110ff434fe8275649b5350ba0cf84c4b662c21917de0e99cf0774d01f137426a9e7
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Filesize
4.1MB
MD58f66157297e86c7ac5093624d6725f2e
SHA10e4557927ab4e552abdcd09cd00f416cd11e4344
SHA25662b7f9719e9833c886468e1066c5cd78731942c51915dda411e42d6010be683f
SHA512d0cd8969efc646051eb7fa5b3728ea5c7d4a3747f753ca909877a780171b6d738cbea1e51f434af79cdb02e5de7d728876764bb72418d9966849882bbf15e9e7
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec