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Analysis
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max time kernel
149s -
max time network
148s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
01/05/2024, 16:29
Static task
static1
Behavioral task
behavioral1
Sample
17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe
Resource
win10v2004-20240419-en
General
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Target
17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe
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Size
4.2MB
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MD5
bcd023b39f1143fb8a92f7c3f8ef9d35
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SHA1
1bebb58a15d5ce9290a29c58a179439649bf582b
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SHA256
17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe
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SHA512
4801b6c94b106afe728ba76b3cc049d03a6a269efb8a88c8b848a8309cb269ccd974057c9d0a95fb3f337a72fd2908ab0c0b49d17741ad4a69b130dbe1512003
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SSDEEP
98304:l/JQ0p3x8E8SPoR4RNZx2D64gtjtYEI4STUr/55MSjo:l/JQ0pqEXPoR4RvU1gjYEIpeBOd
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/1448-2-0x0000000005120000-0x0000000005A0B000-memory.dmp family_glupteba behavioral2/memory/1448-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1448-50-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1448-89-0x0000000005120000-0x0000000005A0B000-memory.dmp family_glupteba behavioral2/memory/4604-88-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1448-121-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4604-128-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1960-150-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1960-204-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1960-215-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1960-218-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1960-222-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1960-226-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1960-230-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1960-234-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1960-238-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1960-242-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1960-246-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1960-251-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4896 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1960 csrss.exe 4184 injector.exe 4064 windefender.exe 576 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9eb-209.dat upx behavioral2/memory/4064-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4064-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/576-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/576-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe File created C:\Windows\rss\csrss.exe 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.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 912 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 5044 schtasks.exe 5004 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.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,-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,-622 = "Korea Standard Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-722 = "Central Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight 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,-2611 = "Bougainville Daylight Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-241 = "Samoa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight 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" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.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" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates 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,-364 = "Middle East Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2492 powershell.exe 2492 powershell.exe 1448 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 1448 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 2072 powershell.exe 2072 powershell.exe 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 2676 powershell.exe 2676 powershell.exe 3928 powershell.exe 3928 powershell.exe 2144 powershell.exe 2144 powershell.exe 4580 powershell.exe 4580 powershell.exe 3528 powershell.exe 3528 powershell.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 1960 csrss.exe 1960 csrss.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 1960 csrss.exe 1960 csrss.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 1960 csrss.exe 1960 csrss.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe 4184 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2492 powershell.exe Token: SeDebugPrivilege 1448 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Token: SeImpersonatePrivilege 1448 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe Token: SeDebugPrivilege 2072 powershell.exe Token: SeDebugPrivilege 2676 powershell.exe Token: SeDebugPrivilege 3928 powershell.exe Token: SeDebugPrivilege 2144 powershell.exe Token: SeDebugPrivilege 4580 powershell.exe Token: SeDebugPrivilege 3528 powershell.exe Token: SeSystemEnvironmentPrivilege 1960 csrss.exe Token: SeSecurityPrivilege 912 sc.exe Token: SeSecurityPrivilege 912 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1448 wrote to memory of 2492 1448 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 79 PID 1448 wrote to memory of 2492 1448 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 79 PID 1448 wrote to memory of 2492 1448 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 79 PID 4604 wrote to memory of 2072 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 84 PID 4604 wrote to memory of 2072 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 84 PID 4604 wrote to memory of 2072 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 84 PID 4604 wrote to memory of 3852 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 86 PID 4604 wrote to memory of 3852 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 86 PID 3852 wrote to memory of 4896 3852 cmd.exe 88 PID 3852 wrote to memory of 4896 3852 cmd.exe 88 PID 4604 wrote to memory of 2676 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 89 PID 4604 wrote to memory of 2676 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 89 PID 4604 wrote to memory of 2676 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 89 PID 4604 wrote to memory of 3928 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 91 PID 4604 wrote to memory of 3928 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 91 PID 4604 wrote to memory of 3928 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 91 PID 4604 wrote to memory of 1960 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 93 PID 4604 wrote to memory of 1960 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 93 PID 4604 wrote to memory of 1960 4604 17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe 93 PID 1960 wrote to memory of 2144 1960 csrss.exe 94 PID 1960 wrote to memory of 2144 1960 csrss.exe 94 PID 1960 wrote to memory of 2144 1960 csrss.exe 94 PID 1960 wrote to memory of 4580 1960 csrss.exe 100 PID 1960 wrote to memory of 4580 1960 csrss.exe 100 PID 1960 wrote to memory of 4580 1960 csrss.exe 100 PID 1960 wrote to memory of 3528 1960 csrss.exe 102 PID 1960 wrote to memory of 3528 1960 csrss.exe 102 PID 1960 wrote to memory of 3528 1960 csrss.exe 102 PID 1960 wrote to memory of 4184 1960 csrss.exe 104 PID 1960 wrote to memory of 4184 1960 csrss.exe 104 PID 4064 wrote to memory of 3100 4064 windefender.exe 110 PID 4064 wrote to memory of 3100 4064 windefender.exe 110 PID 4064 wrote to memory of 3100 4064 windefender.exe 110 PID 3100 wrote to memory of 912 3100 cmd.exe 111 PID 3100 wrote to memory of 912 3100 cmd.exe 111 PID 3100 wrote to memory of 912 3100 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\17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe"C:\Users\Admin\AppData\Local\Temp\17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1448 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2492
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C:\Users\Admin\AppData\Local\Temp\17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.exe"C:\Users\Admin\AppData\Local\Temp\17d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe.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:4604 -
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:2072
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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:3852 -
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:4896
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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:2676
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3928
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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:1960 -
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:2144
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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:5004
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4204
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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:4580
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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:3528
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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:4184
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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:5044
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4064 -
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:3100 -
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:912
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:576
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
MD5b02e4ea5dee585100e12c53820e398ac
SHA1e394004b8b530a0500294fce0b3c0bbf39792b7c
SHA256bac8ccce8efe13b30617f847bec159642cc00a34f7dc0c4eeb076d62a65c0c70
SHA512f3d8b14cead4585c38e82b75b5f5fe22242f9f33b72ca1d428114be180fc7aa9688e41314a9f6328d1e20ca1e3fa1e9ce53bbf65f3c7de77bb26eff8db654e48
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5998c5bb7890abc422878a3b2090c895c
SHA1855a6457b3a59d5a6db7f463bd6169e0bdd978ee
SHA256d29a73b36cef8734b86c8c85d234569591204725c3f991b99194b9322aeef4e7
SHA512ce812a7d39d005ee9d77f696e8b4aad936f8c972fe1e09c82af91ac38512c0cc938f9db91276a9313008746db7e567d429d50d85322460966d5583958b33e5d6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54d6fe1d8baefe50058bd4ffe5c250f8b
SHA1069f81ef4f15255d59c3d17993eb209c901dcc69
SHA256b091348e825acdf98e5b81419f9a110d5b8da885f6e40f27d7ffa5a77c0e9887
SHA512242a300a7cb522997a425ecf206d086ce2116413b21dc9e0ef316c6c08df6dc7117f8528079c7ed52f7fdbc12ecf134f0249c6c9456d0cafddbdce45804141ae
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50c2f89a981293c3dbe78f42fabc8980f
SHA1fc17ba3352322942819c78d3875bf3e600f2dfa6
SHA256825721ceb69146ffd3e43c3a6182bbea5852148f73896ac0605f74cb69c69d61
SHA512223331dadd21cfcab8878454c5f1b0d7848711d90a23f1f44787fbfcb710b4afd347524dc424fb025a6b8da47eb6b9cd9ed78e623eb187bfaa2a8287216bcd6f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD512efe3258877d92fc796c7f24532478b
SHA108d3579b07133b789aa3efd818027f89e28a0788
SHA2565f1bbb96d0c86149d3b4a1d374c4b91b102aad377d4cee2ed7c914c1b19d213f
SHA51230b1b2d22b5850ae5e3d740c95b233f83df39d3c71cf86230140e4ebce068d03eca4a624b8ffe5c966ddbafd2a851e4bd143e2439ccc8a7c583d78602e1b65b2
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Filesize
4.2MB
MD5bcd023b39f1143fb8a92f7c3f8ef9d35
SHA11bebb58a15d5ce9290a29c58a179439649bf582b
SHA25617d50afa15010ac32d812c5dcf92ecc7ea092b211dbaf615cff598b23443d3fe
SHA5124801b6c94b106afe728ba76b3cc049d03a6a269efb8a88c8b848a8309cb269ccd974057c9d0a95fb3f337a72fd2908ab0c0b49d17741ad4a69b130dbe1512003
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec