Analysis
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max time kernel
149s -
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
19/04/2024, 18:07
Static task
static1
Behavioral task
behavioral1
Sample
b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe
Resource
win10v2004-20240412-en
General
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Target
b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe
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Size
4.2MB
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MD5
d73078825a7772fe5fd1fd1aab3aa5d7
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SHA1
d3a1d292638272622df9f85add3880d8dfae5fd2
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SHA256
b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890
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SHA512
f482533173b5aa99b70aaad2c8d4bd0f629c3348044c1820266a986437fa6fbbea3d665fd4bb1f12664eda192a014b3c9e50323935803f359a08bf9e535a7eb0
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SSDEEP
98304:VBy5JAu+Hk0Et5Mgg8VWlfA2+5+VVv7Fm6fCZ:OAu+ENnjVyYiVNw4k
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/4876-2-0x0000000004200000-0x0000000004AEB000-memory.dmp family_glupteba behavioral2/memory/4876-3-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2732-54-0x0000000003F40000-0x000000000482B000-memory.dmp family_glupteba behavioral2/memory/2732-55-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4876-78-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2732-138-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2732-164-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2532-243-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2532-254-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2532-258-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2532-262-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2532-265-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2532-269-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2532-274-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2532-278-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2532-282-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2532-286-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2532-290-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2532-293-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2532-298-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4932 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2532 csrss.exe 3084 injector.exe 3572 windefender.exe 1940 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9d1-247.dat upx behavioral2/memory/3572-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1940-256-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1940-264-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
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 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe File created C:\Windows\rss\csrss.exe b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe File created 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 1924 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 3444 schtasks.exe 1812 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs 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\26\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-931 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-162 = "Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2771 = "Omsk Daylight 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\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-721 = "Central Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-632 = "Tokyo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2632 = "Norfolk Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 772 powershell.exe 772 powershell.exe 4876 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 4876 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 1812 powershell.exe 1812 powershell.exe 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 2872 powershell.exe 2872 powershell.exe 1732 powershell.exe 1732 powershell.exe 4752 powershell.exe 4752 powershell.exe 2412 powershell.exe 2412 powershell.exe 2848 powershell.exe 2848 powershell.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 2532 csrss.exe 2532 csrss.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 2532 csrss.exe 2532 csrss.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 2532 csrss.exe 2532 csrss.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe 3084 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 772 powershell.exe Token: SeDebugPrivilege 4876 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Token: SeImpersonatePrivilege 4876 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe Token: SeDebugPrivilege 1812 powershell.exe Token: SeDebugPrivilege 2872 powershell.exe Token: SeDebugPrivilege 1732 powershell.exe Token: SeDebugPrivilege 4752 powershell.exe Token: SeDebugPrivilege 2412 powershell.exe Token: SeDebugPrivilege 2848 powershell.exe Token: SeSystemEnvironmentPrivilege 2532 csrss.exe Token: SeSecurityPrivilege 1924 sc.exe Token: SeSecurityPrivilege 1924 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4876 wrote to memory of 772 4876 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 78 PID 4876 wrote to memory of 772 4876 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 78 PID 4876 wrote to memory of 772 4876 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 78 PID 2732 wrote to memory of 1812 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 83 PID 2732 wrote to memory of 1812 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 83 PID 2732 wrote to memory of 1812 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 83 PID 2732 wrote to memory of 4240 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 85 PID 2732 wrote to memory of 4240 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 85 PID 4240 wrote to memory of 4932 4240 cmd.exe 87 PID 4240 wrote to memory of 4932 4240 cmd.exe 87 PID 2732 wrote to memory of 2872 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 88 PID 2732 wrote to memory of 2872 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 88 PID 2732 wrote to memory of 2872 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 88 PID 2732 wrote to memory of 1732 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 90 PID 2732 wrote to memory of 1732 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 90 PID 2732 wrote to memory of 1732 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 90 PID 2732 wrote to memory of 2532 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 92 PID 2732 wrote to memory of 2532 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 92 PID 2732 wrote to memory of 2532 2732 b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe 92 PID 2532 wrote to memory of 4752 2532 csrss.exe 93 PID 2532 wrote to memory of 4752 2532 csrss.exe 93 PID 2532 wrote to memory of 4752 2532 csrss.exe 93 PID 2532 wrote to memory of 2412 2532 csrss.exe 98 PID 2532 wrote to memory of 2412 2532 csrss.exe 98 PID 2532 wrote to memory of 2412 2532 csrss.exe 98 PID 2532 wrote to memory of 2848 2532 csrss.exe 101 PID 2532 wrote to memory of 2848 2532 csrss.exe 101 PID 2532 wrote to memory of 2848 2532 csrss.exe 101 PID 2532 wrote to memory of 3084 2532 csrss.exe 103 PID 2532 wrote to memory of 3084 2532 csrss.exe 103 PID 3572 wrote to memory of 904 3572 windefender.exe 109 PID 3572 wrote to memory of 904 3572 windefender.exe 109 PID 3572 wrote to memory of 904 3572 windefender.exe 109 PID 904 wrote to memory of 1924 904 cmd.exe 110 PID 904 wrote to memory of 1924 904 cmd.exe 110 PID 904 wrote to memory of 1924 904 cmd.exe 110 -
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\b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe"C:\Users\Admin\AppData\Local\Temp\b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4876 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:772
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C:\Users\Admin\AppData\Local\Temp\b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.exe"C:\Users\Admin\AppData\Local\Temp\b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890.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:2732 -
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:1812
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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:4240 -
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:4932
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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:2872
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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:1732
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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:2532 -
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:4752
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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:3444
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3088
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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:2412
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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:2848
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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:3084
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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:1812
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3572 -
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:904 -
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:1924
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1940
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
MD5068909596e5f68d9047910d3450e87b8
SHA14d26b5f8a98a18ab5b0580d75f89b2173faa6c77
SHA2563a9b1437a78f814a44abda41a40b025835bca15bea04431a2e50cf9263edf923
SHA5121e64eba2e2c2c6054a7a3c38093472805bd6ab08564ccfa3b77617a4b247296912f7069920e1acf791030750d8ecb02c954c8ad1b1f2b5ab986ee556ff8e4f8e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e6f73bb0f199e8d7ca7a113bd6e91dca
SHA1d6600962f8454652b5f7d2e198034ba4760d2f0f
SHA256d784203d419fbb5a84c16eee7ea967b775d0f0bea636f5b2da931bfbebb9a89d
SHA51269426ea0aee42d145d51961da63f90b01a8a2324e6b8164bc99e1a8d90e1399000ac55664f7e56c92ce1d94c7faa5bebe301436ee1a434ddb5202d10842a366d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bd3a3ebb2b4071aa1ce0d2d3199727ed
SHA18b2db52aeef192e854af3dce3543fdba162c3d4e
SHA25669aebe5451d8cfdc2bf149d8c1ac0e38327eb479347fc6330055bf3db1bc59fd
SHA512b09a99a5047cd82ad21933bd5195af519da1aacad99e2eae0d65505d9d09f4ad36e18f0c6ac287cb4a7475841aa70795228ccb4fa92dc0af2d128ba18f1be2dc
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5188b5b58b0c846fbe2704b0a7672647b
SHA142b463666ddf222c4ae2f4f9dbd354f64f7fd720
SHA256246e6c9acce08c9706f162967d2735720bf3811ab9d75ad03ce033812c1d9ca5
SHA51202bc1abf298bd7d984d065702d8b58e8db6a74808fd2a1f8df4f37f7cd7320b17aea5b1e2c48cfa7b15ac1e629d39ca490a39e65a1bb58bdca08ab553dc2202d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5264f5db426ba00eb85ba55bd979ac80d
SHA115a16254392a55500241b0da48ae8e0f463d528d
SHA256d98414801f93d92c186033632817b590371e85ea04f1ced1348e2c85530417be
SHA51222f11fe07ac7463f344a58f3bb3a504fe442282325ac85f23b14d1648f0c109b20349db8517a7020314e5e7229fcbe7de7463add61c5eabd6c11835a0118def1
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Filesize
4.2MB
MD5d73078825a7772fe5fd1fd1aab3aa5d7
SHA1d3a1d292638272622df9f85add3880d8dfae5fd2
SHA256b9a0d6c7929fdd6c4d8572c23a78de976269f29f1e17fa228cb10254846f0890
SHA512f482533173b5aa99b70aaad2c8d4bd0f629c3348044c1820266a986437fa6fbbea3d665fd4bb1f12664eda192a014b3c9e50323935803f359a08bf9e535a7eb0
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec