Analysis
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max time kernel
150s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 11:36
Static task
static1
Behavioral task
behavioral1
Sample
ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe
Resource
win10v2004-20240426-en
General
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Target
ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe
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Size
4.1MB
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MD5
6b52d6187350f6521bf1235e8134ed46
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SHA1
d5a040422cb9fd3dde33cfb53c0ed68a008932c3
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SHA256
ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b
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SHA512
136b7d91ed3a65ffd76c448c0ea5f90622d154e09426e8b51d8bbbc91cdec34550a843d6110f7a13ad5d035fee6e9aa6b538ce022d1caa9ca79162666d18d8f1
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SSDEEP
98304:Wk/C6baF9NNXYvR+SQPyohxfWe3/GY9pAEj6r:Wn6bazjovoyoHfX3/GYHU
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/264-2-0x00000000044F0000-0x0000000004DDB000-memory.dmp family_glupteba behavioral1/memory/264-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/264-56-0x00000000044F0000-0x0000000004DDB000-memory.dmp family_glupteba behavioral1/memory/264-57-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/264-55-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/2124-136-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/2448-220-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/2448-230-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/2448-232-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/2448-234-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/2448-236-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/2448-238-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/2448-240-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/2448-242-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/2448-244-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/2448-246-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/2448-248-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/2448-250-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/2448-252-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 1596 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 2448 csrss.exe 2948 injector.exe 2728 windefender.exe 3604 windefender.exe -
Processes:
resource yara_rule behavioral1/files/0x000800000002349b-223.dat upx behavioral1/memory/2728-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2728-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3604-228-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3604-231-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3604-235-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\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.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription 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 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 -
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.
Processes:
ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe -
Drops file in Windows directory 4 IoCs
Processes:
ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe File created C:\Windows\rss\csrss.exe ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.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.
Processes:
sc.exepid Process 5104 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4932 powershell.exe 4384 powershell.exe 1880 powershell.exe 1232 powershell.exe 2336 powershell.exe 540 powershell.exe 4212 powershell.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target Process procid_target 3336 264 WerFault.exe 83 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid Process 2668 schtasks.exe 1880 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.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\2a\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.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,-232 = "Hawaiian Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 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\2a\52C64B7E\@tzres.dll,-721 = "Central Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust 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\2a\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.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\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\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\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs 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\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.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\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-932 = "Coordinated Universal Time" windefender.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\@tzres.dll,-511 = "Central Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exepowershell.exeff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4212 powershell.exe 4212 powershell.exe 264 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 264 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 4932 powershell.exe 4932 powershell.exe 4932 powershell.exe 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 4384 powershell.exe 4384 powershell.exe 1880 powershell.exe 1880 powershell.exe 1880 powershell.exe 1232 powershell.exe 1232 powershell.exe 1232 powershell.exe 2336 powershell.exe 2336 powershell.exe 540 powershell.exe 540 powershell.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2448 csrss.exe 2448 csrss.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2448 csrss.exe 2448 csrss.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2448 csrss.exe 2448 csrss.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exeff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4212 powershell.exe Token: SeDebugPrivilege 264 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Token: SeImpersonatePrivilege 264 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe Token: SeDebugPrivilege 4932 powershell.exe Token: SeDebugPrivilege 4384 powershell.exe Token: SeDebugPrivilege 1880 powershell.exe Token: SeDebugPrivilege 1232 powershell.exe Token: SeDebugPrivilege 2336 powershell.exe Token: SeDebugPrivilege 540 powershell.exe Token: SeSystemEnvironmentPrivilege 2448 csrss.exe Token: SeSecurityPrivilege 5104 sc.exe Token: SeSecurityPrivilege 5104 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exeff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 264 wrote to memory of 4212 264 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 87 PID 264 wrote to memory of 4212 264 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 87 PID 264 wrote to memory of 4212 264 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 87 PID 2124 wrote to memory of 4932 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 99 PID 2124 wrote to memory of 4932 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 99 PID 2124 wrote to memory of 4932 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 99 PID 2124 wrote to memory of 1368 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 103 PID 2124 wrote to memory of 1368 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 103 PID 1368 wrote to memory of 1596 1368 cmd.exe 105 PID 1368 wrote to memory of 1596 1368 cmd.exe 105 PID 2124 wrote to memory of 4384 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 106 PID 2124 wrote to memory of 4384 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 106 PID 2124 wrote to memory of 4384 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 106 PID 2124 wrote to memory of 1880 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 125 PID 2124 wrote to memory of 1880 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 125 PID 2124 wrote to memory of 1880 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 125 PID 2124 wrote to memory of 2448 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 112 PID 2124 wrote to memory of 2448 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 112 PID 2124 wrote to memory of 2448 2124 ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe 112 PID 2448 wrote to memory of 1232 2448 csrss.exe 113 PID 2448 wrote to memory of 1232 2448 csrss.exe 113 PID 2448 wrote to memory of 1232 2448 csrss.exe 113 PID 2448 wrote to memory of 2336 2448 csrss.exe 118 PID 2448 wrote to memory of 2336 2448 csrss.exe 118 PID 2448 wrote to memory of 2336 2448 csrss.exe 118 PID 2448 wrote to memory of 540 2448 csrss.exe 121 PID 2448 wrote to memory of 540 2448 csrss.exe 121 PID 2448 wrote to memory of 540 2448 csrss.exe 121 PID 2448 wrote to memory of 2948 2448 csrss.exe 123 PID 2448 wrote to memory of 2948 2448 csrss.exe 123 PID 2728 wrote to memory of 3448 2728 windefender.exe 129 PID 2728 wrote to memory of 3448 2728 windefender.exe 129 PID 2728 wrote to memory of 3448 2728 windefender.exe 129 PID 3448 wrote to memory of 5104 3448 cmd.exe 130 PID 3448 wrote to memory of 5104 3448 cmd.exe 130 PID 3448 wrote to memory of 5104 3448 cmd.exe 130 -
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\ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe"C:\Users\Admin\AppData\Local\Temp\ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:264 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4212
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C:\Users\Admin\AppData\Local\Temp\ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.exe"C:\Users\Admin\AppData\Local\Temp\ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b.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:2124 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4932
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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:1368 -
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:1596
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4384
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1880
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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:2448 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1232
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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:2668
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4796
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2336
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:540
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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:2948
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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:1880
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2728 -
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:3448 -
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:5104
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 264 -s 6282⤵
- Program crash
PID:3336
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 264 -ip 2641⤵PID:1036
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3604
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53dc03a928b561d514ef439d99d1f0f7a
SHA1fa0ff3241221617cd2bfb14f00dd89b4fdd7cd94
SHA2561fbfec0149aef85b30cc9dfa67c64581d2e8cf9c4668a467a6e679faa4ffe119
SHA512e2e107d0d3e2d4969adf8e54ea802263ee539def92295d635d56b9ca081b78ccbf7e8807f6195de974e14f1ca5fa1d9a0b809f2de7b91f08c60ad83b88168ac9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54f27b5f1dce06de462bb57b739545689
SHA1d55ed0b7d34318eacc73005a968400aeaa6aec88
SHA256fb40964c1bf976dbbcc4a929aeaf27ad374fdee4a8959f47b2ab6c68ed842c7b
SHA51239ec48f4ccf67fc06cb010af31b621c193a8f030c1d22debfdc274bc59b3ae1b5561291b66fbbdeab0b36594b86c198eb056e0df02b7b29853fd178c7df36010
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD566b701df59e6c80dab3253536ae33817
SHA154e6c278b2667661a67c4ec501cf7533b025b9c3
SHA256b79b1c4b680bee62d1b032d221651239f8f11b97e0c9a10a4f69282e1ff4b09a
SHA512a13d1adc7217dad5c01aad0505456002227c624871d3ce44381e08f491f600b5ecb792347514637f0ad49d246ffacf889f46f1a2d9f440b3e683df107c20afe5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58f14eed8974e455819cdb5fffb3cfb41
SHA180f6b2039a001a0186d1e99cd896d94cb23cdb8a
SHA256d4732fb88423c23faaa343df736ff28ea72632e0a9286e5f9843b965609d64ea
SHA512bf95c25ad128cdfd813c25c2d22baeac353e32fe21e6cc239631a9e0360d3bedfa256d77dbc0d7ccfb8a71d6fdac3026a96429934ac07867a26cb9bea04ed7d7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5511ba1646ecf3354be8abacc89fc162d
SHA1a7c642561fb094675bead56ce4f1e56f80601bf0
SHA2560ab92cb85e1d5f18b9658ef9b10519f42d4765a77a525ffa5688641deb167096
SHA512cfb190971c6eee8da781cd7341517fb1109a3f225c2edc81802b0155a170b224f48c7b7ba03f5c8aa78f6c7269473355705b965f9f6fed783d51190171daf0c3
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Filesize
4.1MB
MD56b52d6187350f6521bf1235e8134ed46
SHA1d5a040422cb9fd3dde33cfb53c0ed68a008932c3
SHA256ff4bb3cbb7503ac8cfaf2ad1a24ae90eb271149ce490142795898b7b6af04d4b
SHA512136b7d91ed3a65ffd76c448c0ea5f90622d154e09426e8b51d8bbbc91cdec34550a843d6110f7a13ad5d035fee6e9aa6b538ce022d1caa9ca79162666d18d8f1
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec