Analysis
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max time kernel
149s -
max time network
125s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
30-04-2024 20:03
Static task
static1
Behavioral task
behavioral1
Sample
94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe
Resource
win10v2004-20240426-en
General
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Target
94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe
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Size
4.1MB
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MD5
52eb5a5dae741fc0d350c319390808e8
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SHA1
4437ef821f0b9775bea4854a332ea745205137e6
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SHA256
94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89
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SHA512
4aeadf5504c247b6048957b6ca54c5fa0d7ee9b42363154dac89c13239b764918aa653ed50215a1cc68655b54c7ac994fde26d96af8aad6adb9dbc22917ad796
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SSDEEP
98304:nZskg/H735lHbuysRFeUF6V6bbDBSxmwu3Rtil+D9:Zskkz/szhW63DBSERviUD9
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/4080-2-0x0000000003FB0000-0x000000000489B000-memory.dmp family_glupteba behavioral2/memory/4080-3-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/4080-52-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/4080-53-0x0000000003FB0000-0x000000000489B000-memory.dmp family_glupteba behavioral2/memory/4964-126-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2624-154-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2624-205-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2624-206-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2624-207-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2624-208-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2624-209-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2624-210-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2624-211-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2624-212-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2624-213-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2624-214-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2624-215-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2624-216-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4108 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 2624 csrss.exe 4588 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-891789021-684472942-1795878712-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\S-1-5-21-891789021-684472942-1795878712-1000\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 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 -
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 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe File created C:\Windows\rss\csrss.exe 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.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 4184 schtasks.exe 1372 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,-652 = "AUS Central Standard Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.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\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.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,-282 = "Central Europe Standard Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.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\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs 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,-11 = "Azores Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs 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\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3660 powershell.exe 3660 powershell.exe 4080 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 4080 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 2188 powershell.exe 2188 powershell.exe 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 3048 powershell.exe 3048 powershell.exe 1676 powershell.exe 1676 powershell.exe 736 powershell.exe 736 powershell.exe 924 powershell.exe 924 powershell.exe 2256 powershell.exe 2256 powershell.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 2624 csrss.exe 2624 csrss.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 2624 csrss.exe 2624 csrss.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 3660 powershell.exe Token: SeDebugPrivilege 4080 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Token: SeImpersonatePrivilege 4080 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe Token: SeDebugPrivilege 2188 powershell.exe Token: SeDebugPrivilege 3048 powershell.exe Token: SeDebugPrivilege 1676 powershell.exe Token: SeDebugPrivilege 736 powershell.exe Token: SeDebugPrivilege 924 powershell.exe Token: SeDebugPrivilege 2256 powershell.exe Token: SeSystemEnvironmentPrivilege 2624 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 4080 wrote to memory of 3660 4080 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 82 PID 4080 wrote to memory of 3660 4080 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 82 PID 4080 wrote to memory of 3660 4080 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 82 PID 4964 wrote to memory of 2188 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 87 PID 4964 wrote to memory of 2188 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 87 PID 4964 wrote to memory of 2188 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 87 PID 4964 wrote to memory of 3480 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 89 PID 4964 wrote to memory of 3480 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 89 PID 3480 wrote to memory of 4108 3480 cmd.exe 91 PID 3480 wrote to memory of 4108 3480 cmd.exe 91 PID 4964 wrote to memory of 3048 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 92 PID 4964 wrote to memory of 3048 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 92 PID 4964 wrote to memory of 3048 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 92 PID 4964 wrote to memory of 1676 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 94 PID 4964 wrote to memory of 1676 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 94 PID 4964 wrote to memory of 1676 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 94 PID 4964 wrote to memory of 2624 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 96 PID 4964 wrote to memory of 2624 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 96 PID 4964 wrote to memory of 2624 4964 94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe 96 PID 2624 wrote to memory of 736 2624 csrss.exe 97 PID 2624 wrote to memory of 736 2624 csrss.exe 97 PID 2624 wrote to memory of 736 2624 csrss.exe 97 PID 2624 wrote to memory of 924 2624 csrss.exe 103 PID 2624 wrote to memory of 924 2624 csrss.exe 103 PID 2624 wrote to memory of 924 2624 csrss.exe 103 PID 2624 wrote to memory of 2256 2624 csrss.exe 105 PID 2624 wrote to memory of 2256 2624 csrss.exe 105 PID 2624 wrote to memory of 2256 2624 csrss.exe 105 PID 2624 wrote to memory of 4588 2624 csrss.exe 107 PID 2624 wrote to memory of 4588 2624 csrss.exe 107 -
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\94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe"C:\Users\Admin\AppData\Local\Temp\94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4080 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3660
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C:\Users\Admin\AppData\Local\Temp\94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.exe"C:\Users\Admin\AppData\Local\Temp\94a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89.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:4964 -
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:2188
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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:3480 -
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:4108
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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:3048
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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:1676
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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.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2624 -
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:736
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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:4184
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4464
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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:924
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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:2256
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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:4588
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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:1372
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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
MD5b5ea45c363629165353931e8f58342bb
SHA13fdc9be6a1a5449fbdd8e1b9e933c8a9d759a80b
SHA2566efadf06e9f4b2bbd8afd4466ca882d740d3ddf09a7e1a5123cc4513afbcd544
SHA512fd7aa8f55613c26ebda0fbfe2deffa2524b8e8ab07d6620aeea09bf4df24a97b3303425778abad7573f3a3f99d03ebead4a6320c816a972bea9093793e8394c9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50ef098b40d98e67baa4d49a4d49b046f
SHA17f7fc5b24b4ab9cc02aec19ac3a18a8db8769a66
SHA2561935bc50a4613791d86fda42b08a5d3c68234b8ab68dce177d8cf4b879f3c232
SHA51296974075f5e0bea9b075cee944160f7ab0d0cfa1bbf876f29384fb61711a7deae797d4533b42add317f93e99bb067d8e2d4f88d04fab0fbb5e88cf384599a3c3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59583c12105a62a1900268f301886f0b3
SHA196ba04d5b58cd9f742bedd3a58de00abc25bc236
SHA256d244f0fdef2345913f31b917d9e10ccf0c7f4706f7ac49240eecabf96ad5e828
SHA51250738c145cebba2d6c85c800837fd8fbfe5c44e378923e54d96e5f265062cd6045a18e79ec3dd2245459b6ccf5fd959dbf521ce5b5f81ba91ffe5e69cac3b8c9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52055c63407a5ed28f673e9d3a2c4cddb
SHA16c6c390c3bf2964c17a047bf0c731ff8398b2745
SHA25676ac6222ed037850124c86a25bf6901df6762247c6abc7232fe71be69fa08e39
SHA512db277365b020e11d8c4df01ffa81e38f3a5db906c94361a982543099c1e1ac80878b7f748ef1b366a1e151fbce2d090127ed820ac9ae59ddba98ffb1de78632f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f316a9c31ae2794d8251af1ebe00d107
SHA1ead8bc8e9f61f38b415a1c1b8773663eb7222b08
SHA256f7a6a776de96ee0013dbb5ae70cb98b4cfb0276e4b4d2d961232c7ae6387d035
SHA512122881c6da9dbb04324d14ad1add0e4a679c6ae933704999a58100d2379550bdd8d3f74c9fb30655b237c97c65d5984c2465dad28f1bc8f02af0ae115cb6d526
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Filesize
4.1MB
MD552eb5a5dae741fc0d350c319390808e8
SHA14437ef821f0b9775bea4854a332ea745205137e6
SHA25694a8455662b5bb971838e98ddad5b3ca3145ae8e7fbb80fb7837047bfcebca89
SHA5124aeadf5504c247b6048957b6ca54c5fa0d7ee9b42363154dac89c13239b764918aa653ed50215a1cc68655b54c7ac994fde26d96af8aad6adb9dbc22917ad796