Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240214-en -
resource tags
arch:x64arch:x86image:win11-20240214-enlocale:en-usos:windows11-21h2-x64system -
submitted
11-04-2024 04:14
Static task
static1
Behavioral task
behavioral1
Sample
ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe
Resource
win10v2004-20240226-en
General
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Target
ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe
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Size
4.2MB
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MD5
74b10c71fe17b2a762fb9e0a6aec356c
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SHA1
7d89ac68392ab3ce93902ba2397ea5e18ce78550
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SHA256
ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a
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SHA512
cfb66059db590fb608b9f607dd1bf54d54e1c031d6cc541d6040ea507f7d6d8a24cc528678c850edade16562a4146f14368e73baa85364fbb147724dca2fd129
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SSDEEP
98304:I5lPBaWBrbylaZCxbWq17tgxAPYITosQNEMg2S6aC8AEQ:WjBrYYebWqlbosQ6t6aC1V
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/3948-2-0x0000000002FA0000-0x000000000388B000-memory.dmp family_glupteba behavioral2/memory/3948-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3948-52-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3948-54-0x0000000002FA0000-0x000000000388B000-memory.dmp family_glupteba behavioral2/memory/2940-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2940-111-0x0000000002AA0000-0x0000000002EA6000-memory.dmp family_glupteba behavioral2/memory/2940-112-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2940-146-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3212-235-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3212-247-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3212-254-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3212-257-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3212-260-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3212-263-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3212-266-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3212-269-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3212-272-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3212-275-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3212-278-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4056 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3212 csrss.exe 656 injector.exe 836 windefender.exe 4204 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a7a8-246.dat upx behavioral2/memory/836-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4204-255-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4204-261-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2567984660-2719943099-2683635618-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe Set value (str) \REGISTRY\USER\S-1-5-21-2567984660-2719943099-2683635618-1000\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 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe File created C:\Windows\rss\csrss.exe ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3740 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 4924 schtasks.exe 1496 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\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-161 = "Central Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\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,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-442 = "Arabian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-162 = "Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed 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\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2892 = "Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.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\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.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\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-722 = "Central Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3332 powershell.exe 3332 powershell.exe 3948 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 3948 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 2228 powershell.exe 2228 powershell.exe 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 2000 powershell.exe 2000 powershell.exe 3688 powershell.exe 3688 powershell.exe 4816 powershell.exe 4816 powershell.exe 2724 powershell.exe 2724 powershell.exe 2360 powershell.exe 2360 powershell.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 3212 csrss.exe 3212 csrss.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 3212 csrss.exe 3212 csrss.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 3212 csrss.exe 3212 csrss.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe 656 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3332 powershell.exe Token: SeDebugPrivilege 3948 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe Token: SeImpersonatePrivilege 3948 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe Token: SeDebugPrivilege 2228 powershell.exe Token: SeDebugPrivilege 2000 powershell.exe Token: SeDebugPrivilege 3688 powershell.exe Token: SeDebugPrivilege 4816 powershell.exe Token: SeDebugPrivilege 2724 powershell.exe Token: SeDebugPrivilege 2360 powershell.exe Token: SeSystemEnvironmentPrivilege 3212 csrss.exe Token: SeSecurityPrivilege 3740 sc.exe Token: SeSecurityPrivilege 3740 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3948 wrote to memory of 3332 3948 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 77 PID 3948 wrote to memory of 3332 3948 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 77 PID 3948 wrote to memory of 3332 3948 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 77 PID 2940 wrote to memory of 2228 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 82 PID 2940 wrote to memory of 2228 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 82 PID 2940 wrote to memory of 2228 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 82 PID 2940 wrote to memory of 4084 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 84 PID 2940 wrote to memory of 4084 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 84 PID 4084 wrote to memory of 4056 4084 cmd.exe 86 PID 4084 wrote to memory of 4056 4084 cmd.exe 86 PID 2940 wrote to memory of 2000 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 87 PID 2940 wrote to memory of 2000 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 87 PID 2940 wrote to memory of 2000 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 87 PID 2940 wrote to memory of 3688 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 89 PID 2940 wrote to memory of 3688 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 89 PID 2940 wrote to memory of 3688 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 89 PID 2940 wrote to memory of 3212 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 91 PID 2940 wrote to memory of 3212 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 91 PID 2940 wrote to memory of 3212 2940 ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe 91 PID 3212 wrote to memory of 4816 3212 csrss.exe 92 PID 3212 wrote to memory of 4816 3212 csrss.exe 92 PID 3212 wrote to memory of 4816 3212 csrss.exe 92 PID 3212 wrote to memory of 2724 3212 csrss.exe 97 PID 3212 wrote to memory of 2724 3212 csrss.exe 97 PID 3212 wrote to memory of 2724 3212 csrss.exe 97 PID 3212 wrote to memory of 2360 3212 csrss.exe 100 PID 3212 wrote to memory of 2360 3212 csrss.exe 100 PID 3212 wrote to memory of 2360 3212 csrss.exe 100 PID 3212 wrote to memory of 656 3212 csrss.exe 102 PID 3212 wrote to memory of 656 3212 csrss.exe 102 PID 836 wrote to memory of 1108 836 windefender.exe 108 PID 836 wrote to memory of 1108 836 windefender.exe 108 PID 836 wrote to memory of 1108 836 windefender.exe 108 PID 1108 wrote to memory of 3740 1108 cmd.exe 109 PID 1108 wrote to memory of 3740 1108 cmd.exe 109 PID 1108 wrote to memory of 3740 1108 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\ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe"C:\Users\Admin\AppData\Local\Temp\ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3948 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3332
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C:\Users\Admin\AppData\Local\Temp\ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.exe"C:\Users\Admin\AppData\Local\Temp\ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a.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:2940 -
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:2228
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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:4084 -
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:4056
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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:2000
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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:3688
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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:3212 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4816
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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:4924
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3172
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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:2724
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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:2360
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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:656
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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:1496
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:836 -
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:1108 -
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:3740
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4204
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
MD5c67ddac448da8bc9bb34190d0133b33d
SHA10c61759e72f4f879b3bbc2dd7139b3c4eb449150
SHA256278894b0245f8cf63c397595f93a9ea7727c67c30c9b68db2a5c76cbd6719e6e
SHA5128dd067017638e83500a0b74d9b25527e5fa31ee30e07a4cee2bb27d3ed928a5dce4a034792913e7ae297d8749f29deb484edde0f93693bffb96326aa58441e29
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5aeecb9c6d1475d2f1a50bd9505d3db14
SHA1c66d4be0966969c10412316b461c53b028f9dbf1
SHA2561f5952e73ccbd34e1cd385077be3cde5fcd03e670728014e54e4f462c5c2a75c
SHA512259ee2c6e392b6032288eb31d49a43633bba9b3956559504ee80390e8e8d71ed02a684a0357aad50317b33ddfbb26b7860a8a7f24af65b94b80368d1658059e9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c18285e5c09f6da66e65ed1253ef3544
SHA173f161ce23a60e5aa7c79f27fb9c5ed0adca91b1
SHA25680c3084f95fdf9380a7efda8543f3e32e5664aa6eb37e7dd6ab3f2aa89a4bbcd
SHA5122db8b8f3c4036cc23baf1817a2bb420e27a2538d137fb068f76283faf042b29281f269989e0cf540b0dac40d2884c61bfaaef6f95a76a35c6dc017c60e4d9cbb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51b6975161958894a6e74119dacc05219
SHA158d71ad0d56c72f3afa881907a0542417eb0f2d4
SHA256a7e362c613a4e76e695c6b1e6f91b10c921c0cb0b69ec9f2ec8a0fefbec2f746
SHA512b83abe05d24051f488a879836111455eb975aea60e96444a115cbd583850519278df70ea9e6824827f2e8ce8e9626f7426ac754a900b8b5acd685e01547f9ee2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5dcac0aac8fd5b6e21cef51cfc63d7168
SHA19f9a7b0f2236060273d237f20a6a9fa2d76525b7
SHA2567a46e2ff7e589a3768e0e30489a8c22c291171ab30b422988d0f9e311c3415de
SHA512d1ef5836dfe94867521445227bdd715b24288ab3430bb20f7746976dac96f798bdcfc03df454fc511ca18ec89db246b4acf738c87cc1964982a40f76fbb0e510
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Filesize
4.2MB
MD574b10c71fe17b2a762fb9e0a6aec356c
SHA17d89ac68392ab3ce93902ba2397ea5e18ce78550
SHA256ec4bf36843e75db46bf446341b9b628cf5b92d64908602994c0388a509afca3a
SHA512cfb66059db590fb608b9f607dd1bf54d54e1c031d6cc541d6040ea507f7d6d8a24cc528678c850edade16562a4146f14368e73baa85364fbb147724dca2fd129
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec