Analysis
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max time kernel
150s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
20-04-2024 08:36
Static task
static1
Behavioral task
behavioral1
Sample
1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe
Resource
win10v2004-20240412-en
General
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Target
1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe
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Size
4.2MB
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MD5
f52c6b12e3c4d29c8e2687fe392978a9
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SHA1
6a4f10ec80c7e827b77fb381f00ef36bf6bba5ae
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SHA256
1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e
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SHA512
578002f102951ec164fbf2fb0d600b0f318888ded70103bc3c1b91b6ce9b2232d70bf5b65dd38e3071e9db48dc2155895986ee68e03e508c4bbc9709a60c1a8b
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SSDEEP
98304:KS8Tc81AzKVcNOUNHF6RiNP154spKvDdhObEo7QvVY0ryRAf1Tp7OR/:LEcJzF4UNHqA/dsmoVS4YAf19M
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/2896-2-0x0000000004070000-0x000000000495B000-memory.dmp family_glupteba behavioral2/memory/2896-3-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2896-50-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/2896-53-0x0000000004070000-0x000000000495B000-memory.dmp family_glupteba behavioral2/memory/1872-54-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1872-126-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1872-180-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4984-240-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4984-247-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4984-257-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4984-260-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4984-263-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4984-266-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4984-269-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4984-272-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4984-275-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4984-278-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4984-281-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4984-284-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/4984-287-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3076 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4984 csrss.exe 1280 injector.exe 1976 windefender.exe 2716 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9d0-250.dat upx behavioral2/memory/1976-255-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2716-259-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2716-265-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\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 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3844 sc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4656 schtasks.exe 4416 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-251 = "Dateline Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.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\26\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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\26\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\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\26\52C64B7E\@tzres.dll,-162 = "Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs 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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4464 powershell.exe 4464 powershell.exe 2896 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 2896 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 4416 powershell.exe 4416 powershell.exe 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 4564 powershell.exe 4564 powershell.exe 1428 powershell.exe 1428 powershell.exe 4948 powershell.exe 4948 powershell.exe 5052 powershell.exe 5052 powershell.exe 4740 powershell.exe 4740 powershell.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 4984 csrss.exe 4984 csrss.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 4984 csrss.exe 4984 csrss.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 4984 csrss.exe 4984 csrss.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe 1280 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4464 powershell.exe Token: SeDebugPrivilege 2896 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Token: SeImpersonatePrivilege 2896 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe Token: SeDebugPrivilege 4416 powershell.exe Token: SeDebugPrivilege 4564 powershell.exe Token: SeDebugPrivilege 1428 powershell.exe Token: SeDebugPrivilege 4948 powershell.exe Token: SeDebugPrivilege 5052 powershell.exe Token: SeDebugPrivilege 4740 powershell.exe Token: SeSystemEnvironmentPrivilege 4984 csrss.exe Token: SeSecurityPrivilege 3844 sc.exe Token: SeSecurityPrivilege 3844 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2896 wrote to memory of 4464 2896 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 79 PID 2896 wrote to memory of 4464 2896 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 79 PID 2896 wrote to memory of 4464 2896 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 79 PID 1872 wrote to memory of 4416 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 84 PID 1872 wrote to memory of 4416 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 84 PID 1872 wrote to memory of 4416 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 84 PID 1872 wrote to memory of 3804 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 86 PID 1872 wrote to memory of 3804 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 86 PID 3804 wrote to memory of 3076 3804 cmd.exe 88 PID 3804 wrote to memory of 3076 3804 cmd.exe 88 PID 1872 wrote to memory of 4564 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 89 PID 1872 wrote to memory of 4564 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 89 PID 1872 wrote to memory of 4564 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 89 PID 1872 wrote to memory of 1428 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 91 PID 1872 wrote to memory of 1428 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 91 PID 1872 wrote to memory of 1428 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 91 PID 1872 wrote to memory of 4984 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 93 PID 1872 wrote to memory of 4984 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 93 PID 1872 wrote to memory of 4984 1872 1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe 93 PID 4984 wrote to memory of 4948 4984 csrss.exe 94 PID 4984 wrote to memory of 4948 4984 csrss.exe 94 PID 4984 wrote to memory of 4948 4984 csrss.exe 94 PID 4984 wrote to memory of 5052 4984 csrss.exe 100 PID 4984 wrote to memory of 5052 4984 csrss.exe 100 PID 4984 wrote to memory of 5052 4984 csrss.exe 100 PID 4984 wrote to memory of 4740 4984 csrss.exe 102 PID 4984 wrote to memory of 4740 4984 csrss.exe 102 PID 4984 wrote to memory of 4740 4984 csrss.exe 102 PID 4984 wrote to memory of 1280 4984 csrss.exe 104 PID 4984 wrote to memory of 1280 4984 csrss.exe 104 PID 1976 wrote to memory of 864 1976 windefender.exe 110 PID 1976 wrote to memory of 864 1976 windefender.exe 110 PID 1976 wrote to memory of 864 1976 windefender.exe 110 PID 864 wrote to memory of 3844 864 cmd.exe 111 PID 864 wrote to memory of 3844 864 cmd.exe 111 PID 864 wrote to memory of 3844 864 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\1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe"C:\Users\Admin\AppData\Local\Temp\1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2896 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4464
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C:\Users\Admin\AppData\Local\Temp\1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.exe"C:\Users\Admin\AppData\Local\Temp\1cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e.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:1872 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4416
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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:3804 -
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:3076
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4564
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1428
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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:4984 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4948
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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:4656
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:5000
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5052
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4740
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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:1280
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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:4416
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1976 -
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:864 -
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:3844
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2716
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
MD58baf0b244e03755e8a0ec400d9ac43ea
SHA11a0943a4d37ef6f4aeaeed24c8e057d4513c3c53
SHA25698169d0f97b90314a9117bb2152303834ddd319744ec8d8660383579b8fb0de9
SHA512914bd20c65238033f61f7bb7fbb56535144b40512b6e863774830c371aaa26e56166aa1f8c1919bf38c8afe568a481f3683834a24d8581f98a5f8bddb7e4c72e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59f6a851e61f8028ce9ca55b59e426ba0
SHA19d5a746f0d82ee9a20a9c298f92eca0ecee41189
SHA25672916e35cd6f6be2e7e1865b3c8897766a5ae8de8f856e8957d68917f3f9ca6c
SHA512c22e4625a057a1fc24c0381bfed674ac2ea3a275437ab3f193772d982ebee2330e4d66e3642972425f88786010f53c1b4e4ff190e920dc2c66471ae541500483
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5139668ef00d9a2fa42d50bff9a607453
SHA1c9dd8b063f8cfbe5578229a554b9a914f6244e5c
SHA256ad0e55ee3e7f77cead40661638a94848f0758d672a151611c03cb9760ecf1b1a
SHA512fbf2d66a0b7e5250e7d18013144cfd37960c7682b3efea18cc347e6fec62c4ab3282079d002d96c8611f32eb0b5679aa50482ccde4c188fb7bdcf01a02a17956
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD501f285f573b92036f18cb89edd4d8c1c
SHA175146b302ed130bff983c7dd0a3753cb5110dce3
SHA2562b7b551fae47efdcf54b12fe6e26996da64d60ae50592bb8a80f2158543ca743
SHA512ae3c78581149758659b1486d2a07ef750921f7aac2e9132f0d655a3a539b5294470e0e5b6da34ce649b13dc11cd5e4d9891298edd173cafef6fc178340c837ee
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59ea3aff272d28c20189f2fce547085eb
SHA1cecf5f18901e4c3ff87be6dd6b813a72ac268c56
SHA25657f045383d7e5f1a0bfe0a00e523012d97ea3e4ddecbd8490bbfeb4dabbde600
SHA51215b629269c96b8adc70ce1ac8506fbfbbb765145f147babdd7847754970dcd194baf816c8a45afe9a0459fc989511490f272c0cc7da4fbfa6348b6a264065e05
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c6f60b269a09a0399c41bea24653dfa8
SHA137f4e336fec3664853b3ca49e46230472a29ac1d
SHA256f221900db9b00a986a377e99ba7d95d79b339403c7aca914ffc57268c58a42ef
SHA512f80b46cfe4d84254856b4cc98a1139d5d61aa069d05df1d159b9bfb21ec77168bd37260618681a1c8ee4f1b30511b83d6f4bc25ab04e95f69b2f612b87a019b2
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Filesize
4.2MB
MD5f52c6b12e3c4d29c8e2687fe392978a9
SHA16a4f10ec80c7e827b77fb381f00ef36bf6bba5ae
SHA2561cea9a5cf0e8b62af174f98eeb7289cefa778f4cc1e024d775abb75f932e7e2e
SHA512578002f102951ec164fbf2fb0d600b0f318888ded70103bc3c1b91b6ce9b2232d70bf5b65dd38e3071e9db48dc2155895986ee68e03e508c4bbc9709a60c1a8b
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec