Analysis
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max time kernel
149s -
max time network
141s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
28-03-2024 16:40
Static task
static1
Behavioral task
behavioral1
Sample
75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe
Resource
win10v2004-20240226-en
General
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Target
75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe
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Size
4.1MB
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MD5
cdffc5c19903a042f7b45f50a69c4cdf
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SHA1
8b3863564ab3d4996de05535cef6a52302706165
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SHA256
75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be
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SHA512
4ae4481dcd35e790c36745fe8c9c7b52a73438c592cdf8f2a84b4899c58f4365f05fc01a8fd4e8d8e57d1133ba15d98009390659cfce733508e92a1aea53d2e4
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SSDEEP
98304:+GTNMYDj3iBHNoHffgF5PrwWJSfEGn3jJ6VZDlAo879KWP5CvHYi:5Ty87i5G/fgF5bJSfbTJQAn95xCfN
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/4996-2-0x0000000003150000-0x0000000003A3B000-memory.dmp family_glupteba behavioral2/memory/4996-3-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/4996-51-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/4996-53-0x0000000003150000-0x0000000003A3B000-memory.dmp family_glupteba behavioral2/memory/4056-55-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/4056-112-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/4056-163-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/2900-220-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/2900-230-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/2900-234-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/2900-237-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/2900-240-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/2900-242-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/2900-244-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/2900-249-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/2900-252-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/2900-254-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/2900-257-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/2900-261-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba behavioral2/memory/2900-264-0x0000000000400000-0x0000000000ECD000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3544 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2900 csrss.exe 2576 injector.exe 2824 windefender.exe 3728 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a786-224.dat upx behavioral2/memory/2824-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3728-232-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3728-238-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3728-247-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3594324687-1993884830-4019639329-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-3594324687-1993884830-4019639329-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.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 6 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 -
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 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe File created C:\Windows\rss\csrss.exe 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.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 2216 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 956 schtasks.exe 544 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-251 = "Dateline Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2632 = "Norfolk Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-401 = "Arabic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.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\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates 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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs 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\22\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 780 powershell.exe 780 powershell.exe 4996 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 4996 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 4336 powershell.exe 4336 powershell.exe 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 1532 powershell.exe 1532 powershell.exe 2772 powershell.exe 2772 powershell.exe 1880 powershell.exe 1880 powershell.exe 2604 powershell.exe 2604 powershell.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2900 csrss.exe 2900 csrss.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2900 csrss.exe 2900 csrss.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2900 csrss.exe 2900 csrss.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe 2576 injector.exe -
Suspicious use of AdjustPrivilegeToken 11 IoCs
description pid Process Token: SeDebugPrivilege 780 powershell.exe Token: SeDebugPrivilege 4996 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Token: SeImpersonatePrivilege 4996 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe Token: SeDebugPrivilege 4336 powershell.exe Token: SeDebugPrivilege 1532 powershell.exe Token: SeDebugPrivilege 2772 powershell.exe Token: SeDebugPrivilege 1880 powershell.exe Token: SeDebugPrivilege 2604 powershell.exe Token: SeSystemEnvironmentPrivilege 2900 csrss.exe Token: SeSecurityPrivilege 2216 sc.exe Token: SeSecurityPrivilege 2216 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4996 wrote to memory of 780 4996 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 77 PID 4996 wrote to memory of 780 4996 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 77 PID 4996 wrote to memory of 780 4996 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 77 PID 4056 wrote to memory of 4336 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 82 PID 4056 wrote to memory of 4336 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 82 PID 4056 wrote to memory of 4336 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 82 PID 4056 wrote to memory of 2324 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 84 PID 4056 wrote to memory of 2324 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 84 PID 2324 wrote to memory of 3544 2324 cmd.exe 86 PID 2324 wrote to memory of 3544 2324 cmd.exe 86 PID 4056 wrote to memory of 1532 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 87 PID 4056 wrote to memory of 1532 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 87 PID 4056 wrote to memory of 1532 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 87 PID 4056 wrote to memory of 2772 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 89 PID 4056 wrote to memory of 2772 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 89 PID 4056 wrote to memory of 2772 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 89 PID 4056 wrote to memory of 2900 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 91 PID 4056 wrote to memory of 2900 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 91 PID 4056 wrote to memory of 2900 4056 75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe 91 PID 2900 wrote to memory of 1880 2900 csrss.exe 92 PID 2900 wrote to memory of 1880 2900 csrss.exe 92 PID 2900 wrote to memory of 1880 2900 csrss.exe 92 PID 2900 wrote to memory of 1288 2900 csrss.exe 98 PID 2900 wrote to memory of 1288 2900 csrss.exe 98 PID 2900 wrote to memory of 1288 2900 csrss.exe 98 PID 2900 wrote to memory of 2604 2900 csrss.exe 100 PID 2900 wrote to memory of 2604 2900 csrss.exe 100 PID 2900 wrote to memory of 2604 2900 csrss.exe 100 PID 2900 wrote to memory of 2576 2900 csrss.exe 102 PID 2900 wrote to memory of 2576 2900 csrss.exe 102 PID 2824 wrote to memory of 4816 2824 windefender.exe 108 PID 2824 wrote to memory of 4816 2824 windefender.exe 108 PID 2824 wrote to memory of 4816 2824 windefender.exe 108 PID 4816 wrote to memory of 2216 4816 cmd.exe 109 PID 4816 wrote to memory of 2216 4816 cmd.exe 109 PID 4816 wrote to memory of 2216 4816 cmd.exe 109 -
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\75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe"C:\Users\Admin\AppData\Local\Temp\75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4996 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:780
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C:\Users\Admin\AppData\Local\Temp\75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.exe"C:\Users\Admin\AppData\Local\Temp\75b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be.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:4056 -
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:4336
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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:2324 -
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:3544
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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:1532
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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:2772
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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:2900 -
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:1880
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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:956
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3344
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Modifies data under HKEY_USERS
PID:1288
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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:2604
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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:2576
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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:544
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2824 -
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:4816 -
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:2216
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3728
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58b88a46a15f1939cb6e0721c904d694d
SHA1e9b445dd20b2a5799db7d9275f8ec487aa619e2b
SHA2563c359e471c21f6025a0f6a90ba277eab532d1d5b9806656c601d4af7de7b1238
SHA5126a9752a08a197526359d23e420e23a8bf3de9ae696850b1743e37413e77efedb3510021a44f76e654e22ab39996d5c009956fae06435a302a534ae6ba18c2f40
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5269191fdd1c088f97aa77f01cf225015
SHA1b01edb902310966c192fa6928bb538451d7351d8
SHA256b5719456f22b21b62d0bd55a11e7dd7f5daaafb424d18ab202572461933b4c26
SHA5126f05100fe26e3e351154115240e0d7ac113be9a5ee40d686065d1e408c8d9033e409e327a158083730b2258b152e18340c6b243253cff8b9a8ac623291189c39
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52d0286f5934de2446b50106965e610db
SHA16eb4b62b9591aa1bee0a28942d4140b7c1cf7766
SHA25696c1a3dcebdb9239c9e0401c15772afe9d09850eb2eedde084e42d1b545ea1c0
SHA512ad6a6aa2b1f16d2789ad2fe63e4e88834c2f12d4c8be3f71287dd65c75c7a0449e8dbdc8eb68a471a027b11bb4422e86f442c7e9536e2b2b3bbb092017bee276
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5accb8ce71e7b641963d9a820c8cc21c7
SHA187e8be36d5f422c6c710ac01ba785b8d7ed756dd
SHA25637a71aa8ac4a440375150df8a87d7f7b2591ee77aef822bf684659512e2c96a5
SHA5124478779e31abddb14c4d0a87e5c8d5ee0431890c3f65363ae0360b5668bca3e919e34d2db68a38f83958a4d97741be88ca9e297f775eeb4100124e10bde3e48f
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Filesize
4.1MB
MD5cdffc5c19903a042f7b45f50a69c4cdf
SHA18b3863564ab3d4996de05535cef6a52302706165
SHA25675b91886511f07be7b131cc35c0a4a651da0d6396a495631f6ffe90cceb009be
SHA5124ae4481dcd35e790c36745fe8c9c7b52a73438c592cdf8f2a84b4899c58f4365f05fc01a8fd4e8d8e57d1133ba15d98009390659cfce733508e92a1aea53d2e4
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec