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Analysis
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max time kernel
150s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
19/05/2024, 01:57
Static task
static1
Behavioral task
behavioral1
Sample
4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe
Resource
win10v2004-20240426-en
General
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Target
4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe
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Size
4.1MB
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MD5
38fda2f226ac96c605fb2a29d14356f7
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SHA1
389be5db2734f23c29de5da81c24a122d2849871
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SHA256
4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332
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SHA512
95f59cd4bb7b523a3e7b4bd1a8e99acdda020443ac83dad90080e30077504a5cb3c4523f535f728fdb729b0908363775490702c3a83a4243f58b8de5ff3cbf8d
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SSDEEP
98304:8rbgSYZm0VZ47d2LjXdY+WeqK35WW/TEhU3Gu22Q:8rcnZFqd2LRPP3hYhQZQ
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/1832-2-0x0000000004540000-0x0000000004E2B000-memory.dmp family_glupteba behavioral2/memory/1832-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1832-73-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/1832-79-0x0000000004540000-0x0000000004E2B000-memory.dmp family_glupteba behavioral2/memory/1832-122-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2476-121-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/2476-194-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/4604-202-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/4604-213-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/4604-216-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/4604-219-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/4604-223-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/4604-229-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/4604-233-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/4604-236-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/4604-239-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/4604-243-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/4604-249-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/4604-252-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/4604-255-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1340 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4604 csrss.exe 2320 injector.exe 4916 windefender.exe 1512 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9ef-205.dat upx behavioral2/memory/4916-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4916-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1512-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1512-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\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 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe File created C:\Windows\rss\csrss.exe 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.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 3380 sc.exe -
pid Process 420 powershell.exe 2452 powershell.exe 480 powershell.exe 1732 powershell.exe 3376 powershell.exe 2396 powershell.exe 3784 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 4348 schtasks.exe 4592 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe 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\@tzres.dll,-1662 = "Bahia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-161 = "Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-82 = "Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs 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\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2182 = "Astrakhan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3784 powershell.exe 3784 powershell.exe 1832 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 1832 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 420 powershell.exe 420 powershell.exe 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 2452 powershell.exe 2452 powershell.exe 480 powershell.exe 480 powershell.exe 1732 powershell.exe 1732 powershell.exe 3376 powershell.exe 3376 powershell.exe 2396 powershell.exe 2396 powershell.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 4604 csrss.exe 4604 csrss.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 4604 csrss.exe 4604 csrss.exe 2320 injector.exe 2320 injector.exe 4604 csrss.exe 4604 csrss.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe 2320 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3784 powershell.exe Token: SeDebugPrivilege 1832 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Token: SeImpersonatePrivilege 1832 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe Token: SeDebugPrivilege 420 powershell.exe Token: SeDebugPrivilege 2452 powershell.exe Token: SeDebugPrivilege 480 powershell.exe Token: SeDebugPrivilege 1732 powershell.exe Token: SeDebugPrivilege 3376 powershell.exe Token: SeDebugPrivilege 2396 powershell.exe Token: SeSystemEnvironmentPrivilege 4604 csrss.exe Token: SeSecurityPrivilege 3380 sc.exe Token: SeSecurityPrivilege 3380 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1832 wrote to memory of 3784 1832 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 79 PID 1832 wrote to memory of 3784 1832 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 79 PID 1832 wrote to memory of 3784 1832 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 79 PID 2476 wrote to memory of 420 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 84 PID 2476 wrote to memory of 420 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 84 PID 2476 wrote to memory of 420 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 84 PID 2476 wrote to memory of 900 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 86 PID 2476 wrote to memory of 900 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 86 PID 900 wrote to memory of 1340 900 cmd.exe 88 PID 900 wrote to memory of 1340 900 cmd.exe 88 PID 2476 wrote to memory of 2452 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 89 PID 2476 wrote to memory of 2452 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 89 PID 2476 wrote to memory of 2452 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 89 PID 2476 wrote to memory of 480 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 91 PID 2476 wrote to memory of 480 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 91 PID 2476 wrote to memory of 480 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 91 PID 2476 wrote to memory of 4604 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 93 PID 2476 wrote to memory of 4604 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 93 PID 2476 wrote to memory of 4604 2476 4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe 93 PID 4604 wrote to memory of 1732 4604 csrss.exe 94 PID 4604 wrote to memory of 1732 4604 csrss.exe 94 PID 4604 wrote to memory of 1732 4604 csrss.exe 94 PID 4604 wrote to memory of 3376 4604 csrss.exe 100 PID 4604 wrote to memory of 3376 4604 csrss.exe 100 PID 4604 wrote to memory of 3376 4604 csrss.exe 100 PID 4604 wrote to memory of 2396 4604 csrss.exe 102 PID 4604 wrote to memory of 2396 4604 csrss.exe 102 PID 4604 wrote to memory of 2396 4604 csrss.exe 102 PID 4604 wrote to memory of 2320 4604 csrss.exe 104 PID 4604 wrote to memory of 2320 4604 csrss.exe 104 PID 4916 wrote to memory of 2480 4916 windefender.exe 110 PID 4916 wrote to memory of 2480 4916 windefender.exe 110 PID 4916 wrote to memory of 2480 4916 windefender.exe 110 PID 2480 wrote to memory of 3380 2480 cmd.exe 111 PID 2480 wrote to memory of 3380 2480 cmd.exe 111 PID 2480 wrote to memory of 3380 2480 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\4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe"C:\Users\Admin\AppData\Local\Temp\4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1832 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3784
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C:\Users\Admin\AppData\Local\Temp\4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.exe"C:\Users\Admin\AppData\Local\Temp\4d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332.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:2476 -
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:420
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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:900 -
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:1340
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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:2452
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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:480
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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:4604 -
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:1732
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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:4348
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4684
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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:3376
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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:2396
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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:2320
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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:4592
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4916 -
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:2480 -
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:3380
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1512
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
MD5d334aef36e496073e27c016cf37a2af3
SHA1b34389fc3e94044bb5ca3c06411b8f2c32649cca
SHA2565ec3127d8a01832761342b566a5af0df95589c4aa6ad4757ded67932bb9eb83c
SHA512a56749417cd80b9e7f79248b1ca4fefe8e36e92c408f04af9f301306d790e4231ad4140c85e7bc393f56c93fd1ac4a06bb5cfbc6c42884fa54b614edf0790927
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a7e001408659e03062632fb3f0b7a750
SHA198096284fe35ebf19d74b08cc9740287622d57a9
SHA256c0e85912a8feb1ad24cafe53d6b02bc07606e18f15f41c67679f27be9f03b95a
SHA5128874acf4c506716fa25682ca9392004f96d1311ab4cc317d2279ee4428e9a4b78bace017d09d95a92474fca917e5bd4668fda5485ed0eec1878303ef0aa9d1a4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57a5edc29fe79f0d36b1ca6e726556f4d
SHA170fd48009b1986351b311df617e3a4c9751f0119
SHA25619076c6c206e183bb9771488e4984b9e6fd0d732a156b1376f8b498057795dba
SHA512397e3d21947aee7eba1593f98a192112849f3217a0acfea0629eb268d7e1806d4aae9d138cf7a55fbcd683953c5ac0542589f6cf2201dcfb9c2ca38308daa18c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52098e941827d189770207994ce9eb4ad
SHA1f2d8e8e0409f7c65ab785a6576d0a3c1058d88b6
SHA2566da79f9916b3d9473cd3ddc392cf6efd05830a298ae608b065bb9a33e51d77e4
SHA5121a5c1b55972f857a6d15b50f95d1d244ef952ff2e77de95c21fad4a980d278b2f5b40a9dd4867450385a53165d81162a6507a836dc1d28938dccaf1f86f29c18
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a8a8053b6f736fe8ac1b7432a71af33b
SHA137abf4b45ce069ad6aa436c3817e21c6fa29c7f7
SHA256ab8a7715c84adb6e0be006ed0b70e7c239bf18277cfc3128ff7f70ef0d8d47c8
SHA512f01319cde385ffc10ebaaf7937882c4d0513692ed55494d10c4ea4c0c239070f6978f566cc42e0cd8ea260af0c178478c65361859e4eff78c8e3f1e245651a03
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Filesize
4.1MB
MD538fda2f226ac96c605fb2a29d14356f7
SHA1389be5db2734f23c29de5da81c24a122d2849871
SHA2564d818a84b90145961b5dec224a5b6ff9ac64f1fe4f2f9b9fb3b3ab52c7521332
SHA51295f59cd4bb7b523a3e7b4bd1a8e99acdda020443ac83dad90080e30077504a5cb3c4523f535f728fdb729b0908363775490702c3a83a4243f58b8de5ff3cbf8d
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec