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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
22/04/2024, 07:43
Static task
static1
Behavioral task
behavioral1
Sample
a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe
Resource
win10v2004-20240412-en
General
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Target
a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe
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Size
4.2MB
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MD5
f050cdc7baaf85ee9a4487cb94b418ed
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SHA1
186dba34c17efe0c2cd4814d14b24df5176d9989
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SHA256
a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f
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SHA512
fb8587c572d29b53f4369e0a3f7068a1660c53a24ce9ab07ac10f9b402dc6719716b76c5b26a9930778c6c80a17ec4883feb09e6d989e034e67889c57fa5b393
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SSDEEP
98304:35+mIL5L7IQj8yJZZuDoiuzYljTftPavivh2zh/wed:J+zh739J3uDoioYlH4vmAzhzd
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/2972-2-0x0000000005320000-0x0000000005C0B000-memory.dmp family_glupteba behavioral2/memory/2972-3-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/2972-51-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/2972-53-0x0000000005320000-0x0000000005C0B000-memory.dmp family_glupteba behavioral2/memory/1468-55-0x0000000005140000-0x0000000005A2B000-memory.dmp family_glupteba behavioral2/memory/1468-56-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1468-101-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1468-114-0x0000000003390000-0x0000000003797000-memory.dmp family_glupteba behavioral2/memory/1468-148-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/3644-215-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/3644-245-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/3644-254-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/3644-256-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/3644-258-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/3644-260-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/3644-262-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/3644-264-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/3644-266-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/3644-268-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2960 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3644 csrss.exe 1172 injector.exe 1928 windefender.exe 432 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9c4-248.dat upx behavioral2/memory/1928-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/432-255-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/432-259-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\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 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 -
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 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe File created C:\Windows\rss\csrss.exe a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.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 1524 sc.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 900 2972 WerFault.exe 78 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1884 schtasks.exe 4312 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process 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,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs 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\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2872 = "Magallanes Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\26\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-722 = "Central Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-511 = "Central Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs 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\26\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.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,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3840 powershell.exe 3840 powershell.exe 2972 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 2972 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 4448 powershell.exe 4448 powershell.exe 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 3188 powershell.exe 3188 powershell.exe 3696 powershell.exe 3696 powershell.exe 1692 powershell.exe 1692 powershell.exe 2364 powershell.exe 2364 powershell.exe 4860 powershell.exe 4860 powershell.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 3644 csrss.exe 3644 csrss.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 3644 csrss.exe 3644 csrss.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 3644 csrss.exe 3644 csrss.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe 1172 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3840 powershell.exe Token: SeDebugPrivilege 2972 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Token: SeImpersonatePrivilege 2972 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe Token: SeDebugPrivilege 4448 powershell.exe Token: SeDebugPrivilege 3188 powershell.exe Token: SeDebugPrivilege 3696 powershell.exe Token: SeDebugPrivilege 1692 powershell.exe Token: SeDebugPrivilege 2364 powershell.exe Token: SeDebugPrivilege 4860 powershell.exe Token: SeSystemEnvironmentPrivilege 3644 csrss.exe Token: SeSecurityPrivilege 1524 sc.exe Token: SeSecurityPrivilege 1524 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2972 wrote to memory of 3840 2972 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 82 PID 2972 wrote to memory of 3840 2972 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 82 PID 2972 wrote to memory of 3840 2972 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 82 PID 1468 wrote to memory of 4448 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 90 PID 1468 wrote to memory of 4448 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 90 PID 1468 wrote to memory of 4448 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 90 PID 1468 wrote to memory of 4588 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 92 PID 1468 wrote to memory of 4588 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 92 PID 4588 wrote to memory of 2960 4588 cmd.exe 94 PID 4588 wrote to memory of 2960 4588 cmd.exe 94 PID 1468 wrote to memory of 3188 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 95 PID 1468 wrote to memory of 3188 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 95 PID 1468 wrote to memory of 3188 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 95 PID 1468 wrote to memory of 3696 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 97 PID 1468 wrote to memory of 3696 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 97 PID 1468 wrote to memory of 3696 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 97 PID 1468 wrote to memory of 3644 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 99 PID 1468 wrote to memory of 3644 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 99 PID 1468 wrote to memory of 3644 1468 a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe 99 PID 3644 wrote to memory of 1692 3644 csrss.exe 100 PID 3644 wrote to memory of 1692 3644 csrss.exe 100 PID 3644 wrote to memory of 1692 3644 csrss.exe 100 PID 3644 wrote to memory of 2364 3644 csrss.exe 106 PID 3644 wrote to memory of 2364 3644 csrss.exe 106 PID 3644 wrote to memory of 2364 3644 csrss.exe 106 PID 3644 wrote to memory of 4860 3644 csrss.exe 108 PID 3644 wrote to memory of 4860 3644 csrss.exe 108 PID 3644 wrote to memory of 4860 3644 csrss.exe 108 PID 3644 wrote to memory of 1172 3644 csrss.exe 110 PID 3644 wrote to memory of 1172 3644 csrss.exe 110 PID 1928 wrote to memory of 3764 1928 windefender.exe 116 PID 1928 wrote to memory of 3764 1928 windefender.exe 116 PID 1928 wrote to memory of 3764 1928 windefender.exe 116 PID 3764 wrote to memory of 1524 3764 cmd.exe 117 PID 3764 wrote to memory of 1524 3764 cmd.exe 117 PID 3764 wrote to memory of 1524 3764 cmd.exe 117 -
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\a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe"C:\Users\Admin\AppData\Local\Temp\a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2972 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3840
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C:\Users\Admin\AppData\Local\Temp\a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.exe"C:\Users\Admin\AppData\Local\Temp\a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f.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:1468 -
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:4448
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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:4588 -
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:2960
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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:3188
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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:3696
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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:3644 -
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:1692
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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:1884
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4760
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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:2364
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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:4860
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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:1172
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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:4312
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1928 -
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:3764 -
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:1524
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2972 -s 8042⤵
- Program crash
PID:900
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2972 -ip 29721⤵PID:1788
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:432
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
MD5e387b3aca0929710dc4147dc72dd0b9f
SHA197cd4f004478b3d51eb25a190f0ec208c75d2b45
SHA2564ab09c80250b1e8557641c61f26ebf14076534a34dc8190e214f4fee04d1d1e7
SHA5122ff5a6395686af665e80f3e7b4ad9ae7ae1f00e1ec80f81c4f40f98259f59d5950ec3b19a904cd3a02856aeab201d3857f9bf99f1c01f189bffb244f1da3bc48
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5566e2e5a5bf0f63e0ec83961955f6450
SHA1d0388d0d15d5f1c61b21bbc7157a916632c5343a
SHA2561430bcbf2bc0c65f939af465261a18b9a316e2cdb12dfe89caad5d3f6cae43b1
SHA512cbebf6fd57b4eb2e19499d17830cdee7825bb374e4ecc5c4a592191fef477a6836b869fdf52e9d4048f0c031a52be53070019ce811c6916b035fab7892cbc891
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a34246a7beea4a51bb0e03a39ebddf65
SHA193284ba9c526e4bf22a3d5f5ec8913ee6b281c21
SHA256c650c7c88f0d8052637b1720ac23190d78aabeae8a46e33c8e3db5c455adf05d
SHA5126312b5fc9e1df2def3faf4e38e0894d72594121cc6befeabf04a8e0b7128d7991765dc6e49c5d523075eb56224f81f301837ada3a0878974f17963ccabf9de53
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD516d69f4e68fe4b04037c236946e20af8
SHA15c8bc1ab5ac83f6086a8f83598c20d1e3deef21a
SHA2568db454b50afbd0a35fec4d35db36ba811ab4129979b045b82f77ba3cc9adc11b
SHA5122994817270a5bdf142e5dae2dc56b290a1896c0686102719f828f73be978170707f55ef2ebeb8c10d2f84dda0b60d1c9a20ec82e68e09a6df689fc549085d2b9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52e074e2f88d20c25e05106138ff8d4d8
SHA14ea62b2e608855174a8e99530a75b03a0ef50610
SHA256e1703a5c035b469023d9b6921d2d0e3eb5e92eef1536d833c154fb8aa90d0094
SHA512734d9232cb733443d0cdf2780bf5b9d88b3de76532666af07dce3240a43868823fc8c10d33108a104e14d21ae54597d50cab0cc6a103e18e5b5aa3d3d4ea6641
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Filesize
4.2MB
MD5f050cdc7baaf85ee9a4487cb94b418ed
SHA1186dba34c17efe0c2cd4814d14b24df5176d9989
SHA256a377788ef4c4725d8eda4c014dbab9a25854f73d83ce4b523c383edc6889287f
SHA512fb8587c572d29b53f4369e0a3f7068a1660c53a24ce9ab07ac10f9b402dc6719716b76c5b26a9930778c6c80a17ec4883feb09e6d989e034e67889c57fa5b393
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec