Analysis
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max time kernel
150s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
18-05-2024 15:13
Static task
static1
Behavioral task
behavioral1
Sample
27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe
Resource
win10v2004-20240508-en
General
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Target
27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe
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Size
4.1MB
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MD5
bf3d3db27d2fbeba30c96f1cecd11082
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SHA1
dd65e4b3b84a90eef38e5d5e112ede52ac9c6862
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SHA256
27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9
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SHA512
d088d88ea98aaed4d317b2f646a2f42cdc82ba9868731d9a66b88ef2fafd5060d530a37e24b2e58cfb1919be83a1e35e96b13b410c92369b5b175bca1b34f7d4
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SSDEEP
98304:r3/aXnuKq8lIi6YuYM5DOP1Yy/qFVYXqnggvBm2Aw6XSjras4uEiZDLpDRiiTH:r3/aer8lIiPc9ySnggpxAJiIuBVpFiib
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/4076-2-0x0000000004980000-0x000000000526B000-memory.dmp family_glupteba behavioral2/memory/4076-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4076-98-0x0000000004980000-0x000000000526B000-memory.dmp family_glupteba behavioral2/memory/4076-97-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/3440-124-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/4076-169-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2660-199-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2660-210-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2660-213-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2660-216-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2660-219-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2660-222-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2660-225-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2660-228-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2660-231-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2660-234-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2660-237-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2660-240-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2660-243-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3152 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2660 csrss.exe 1380 injector.exe 4936 windefender.exe 752 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa27-203.dat upx behavioral2/memory/4936-204-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/752-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4936-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/752-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/752-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\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 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 -
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 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe File created C:\Windows\rss\csrss.exe 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.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 1664 sc.exe -
pid Process 1364 powershell.exe 1932 powershell.exe 4496 powershell.exe 2300 powershell.exe 4988 powershell.exe 2036 powershell.exe 3648 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 2812 schtasks.exe 4764 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2181 = "Astrakhan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.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,-462 = "Afghanistan Standard Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates 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,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-162 = "Central 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" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.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,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\UNCAsIntranet = "1" 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,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.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,-11 = "Azores Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates 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,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs 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\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1364 powershell.exe 1364 powershell.exe 4076 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 4076 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 1932 powershell.exe 1932 powershell.exe 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 4496 powershell.exe 4496 powershell.exe 2300 powershell.exe 2300 powershell.exe 4988 powershell.exe 4988 powershell.exe 2036 powershell.exe 2036 powershell.exe 3648 powershell.exe 3648 powershell.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 2660 csrss.exe 2660 csrss.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 2660 csrss.exe 2660 csrss.exe 1380 injector.exe 1380 injector.exe 2660 csrss.exe 2660 csrss.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe 1380 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1364 powershell.exe Token: SeDebugPrivilege 4076 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Token: SeImpersonatePrivilege 4076 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe Token: SeDebugPrivilege 1932 powershell.exe Token: SeDebugPrivilege 4496 powershell.exe Token: SeDebugPrivilege 2300 powershell.exe Token: SeDebugPrivilege 4988 powershell.exe Token: SeDebugPrivilege 2036 powershell.exe Token: SeDebugPrivilege 3648 powershell.exe Token: SeSystemEnvironmentPrivilege 2660 csrss.exe Token: SeSecurityPrivilege 1664 sc.exe Token: SeSecurityPrivilege 1664 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4076 wrote to memory of 1364 4076 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 79 PID 4076 wrote to memory of 1364 4076 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 79 PID 4076 wrote to memory of 1364 4076 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 79 PID 3440 wrote to memory of 1932 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 84 PID 3440 wrote to memory of 1932 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 84 PID 3440 wrote to memory of 1932 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 84 PID 3440 wrote to memory of 388 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 86 PID 3440 wrote to memory of 388 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 86 PID 388 wrote to memory of 3152 388 cmd.exe 88 PID 388 wrote to memory of 3152 388 cmd.exe 88 PID 3440 wrote to memory of 4496 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 89 PID 3440 wrote to memory of 4496 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 89 PID 3440 wrote to memory of 4496 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 89 PID 3440 wrote to memory of 2300 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 91 PID 3440 wrote to memory of 2300 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 91 PID 3440 wrote to memory of 2300 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 91 PID 3440 wrote to memory of 2660 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 93 PID 3440 wrote to memory of 2660 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 93 PID 3440 wrote to memory of 2660 3440 27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe 93 PID 2660 wrote to memory of 4988 2660 csrss.exe 94 PID 2660 wrote to memory of 4988 2660 csrss.exe 94 PID 2660 wrote to memory of 4988 2660 csrss.exe 94 PID 2660 wrote to memory of 2036 2660 csrss.exe 99 PID 2660 wrote to memory of 2036 2660 csrss.exe 99 PID 2660 wrote to memory of 2036 2660 csrss.exe 99 PID 2660 wrote to memory of 3648 2660 csrss.exe 102 PID 2660 wrote to memory of 3648 2660 csrss.exe 102 PID 2660 wrote to memory of 3648 2660 csrss.exe 102 PID 2660 wrote to memory of 1380 2660 csrss.exe 104 PID 2660 wrote to memory of 1380 2660 csrss.exe 104 PID 4936 wrote to memory of 876 4936 windefender.exe 110 PID 4936 wrote to memory of 876 4936 windefender.exe 110 PID 4936 wrote to memory of 876 4936 windefender.exe 110 PID 876 wrote to memory of 1664 876 cmd.exe 111 PID 876 wrote to memory of 1664 876 cmd.exe 111 PID 876 wrote to memory of 1664 876 cmd.exe 111 -
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\27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe"C:\Users\Admin\AppData\Local\Temp\27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4076 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1364
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C:\Users\Admin\AppData\Local\Temp\27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.exe"C:\Users\Admin\AppData\Local\Temp\27fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9.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:3440 -
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:1932
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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:388 -
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:3152
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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:4496
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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:2300
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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:2660 -
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:4988
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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:2812
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2032
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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:2036
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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:3648
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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:1380
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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:4764
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4936 -
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:876 -
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:1664
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:752
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD563b0ddf6fde4c43169db056561edc407
SHA1a7add44d50fc6c8f1ba890df68a22087f8464ce2
SHA2568bb7cfc0e28e88061325e50f113cad0c97d9d5bf845601455061997e39e26b35
SHA512ad75a1f7a368216395f5a8ee043c8b8250f15932bdd11ace17042e8a2f3242330c6408972b2a92ab33a2dd2d6704929d1267f1b97caa69277afaaebc2d872327
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56b8f69db55dc6ca5fd7568c2a4b9dfc6
SHA19f3bb4b4190c40871cf676075eac1c4a1bb9f53c
SHA256970e2f3a1817c62f91b79bc5c3e077ebf0854842211e5c850a95a5ec0b559173
SHA5129151b5c052afbdfc871ba5dc8c74e8d8dbb9a5f645c879e94af66c58df0739421533dde84db31e071f3f2c15a49d60043b46d469b4088fdd486f276449bf46b6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD540660fff26956ef0c908ec842c10c450
SHA1ba277d500ec5cf96cc0dc1b850e8bf4603c292a9
SHA256523de4c4d023b7d9f0fb97fca312b3a7ffde8ee82eab1eeae216fd8677f3de38
SHA512c08cb33e3d7372d51c6904e4e5b3105781dc0b5b58c191c8c7f7d8a4f23f8d526d7d433900a610b1443b4dc716bd3d8d533059ee8f9391b13af6d48022c21e23
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ff7dab87a5528ef249c670c619ce3e82
SHA133a8b643ed2f31e08808101873c59352209bcf2d
SHA2568c32da1e63eb8044878bb297e1cb25440a6573c1869a8ef8d4485081666c5614
SHA5124cf718532f6cd79e3428cc9230740d4d206ba5f70e4d253d91929108a5291038ce85f2c32403d60bf6e9cf52216ce9fe7b7bbc378e07754dd0bc3afc4ab1ce1f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e03df5c845effd143a9b28778bc599b2
SHA1d0eee3be0d9f812719c31eac4f672b92aede39a3
SHA2562f7de287788546cac84c8557cf32fa54dfd412a6cd04245b343058e86c694dd3
SHA512156bdb6912f8aedc1918698db95d194d6f255fb563a1c93b0f3a8d895809f0079755c28ec5a35ed8ace91f33c531892a6b40889c39bb003ce24e85650aa4132e
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Filesize
4.1MB
MD5bf3d3db27d2fbeba30c96f1cecd11082
SHA1dd65e4b3b84a90eef38e5d5e112ede52ac9c6862
SHA25627fa2fd55937f927eacfc94f12fc165c3adbf57b549ec9d063b0ffcf6bf8daa9
SHA512d088d88ea98aaed4d317b2f646a2f42cdc82ba9868731d9a66b88ef2fafd5060d530a37e24b2e58cfb1919be83a1e35e96b13b410c92369b5b175bca1b34f7d4
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec