Analysis
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max time kernel
149s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
16/05/2024, 10:20
Static task
static1
Behavioral task
behavioral1
Sample
b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe
Resource
win10v2004-20240508-en
General
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Target
b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe
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Size
4.1MB
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MD5
617840f6e2dbf1078532fd19df645752
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SHA1
4d4dd1a1af1a49d86dc17524eeb7427880d26083
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SHA256
b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70
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SHA512
b445965e844bf547ba32b1d6a36f29ee7a97b7b41085c9f7d133610b1d448f096d87c29e3a82c6005fe94b3521b52fc9fe4bd8ee69bf4ef10b29c475ce02fd52
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SSDEEP
98304:1BH5QtHgtXZGwxAeX68LG3wNCsYjHyiS0gsLIyJOWEFSdaDQG3a9ntR:1BZQtHgtXlxHq4G3ixkyiJTOnSQDy9nr
Malware Config
Signatures
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Glupteba payload 16 IoCs
resource yara_rule behavioral2/memory/3772-2-0x0000000002E40000-0x000000000372B000-memory.dmp family_glupteba behavioral2/memory/3772-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3772-87-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3772-89-0x0000000002E40000-0x000000000372B000-memory.dmp family_glupteba behavioral2/memory/3240-136-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4788-201-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4788-214-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4788-226-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4788-230-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4788-234-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4788-238-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4788-242-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4788-246-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4788-250-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4788-254-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4788-258-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2504 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4788 csrss.exe 1892 injector.exe 4856 windefender.exe 3856 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9f8-204.dat upx behavioral2/memory/4856-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4856-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3856-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3856-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3856-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File 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 -
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 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe File created C:\Windows\rss\csrss.exe b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.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 1124 sc.exe -
pid Process 2896 powershell.exe 1956 powershell.exe 1148 powershell.exe 2224 powershell.exe 3464 powershell.exe 3836 powershell.exe 940 powershell.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 2672 schtasks.exe 1364 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-351 = "FLE Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.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,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.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\@tzres.dll,-2892 = "Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.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 powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1892 = "Russia TZ 3 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA 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\2a\52C64B7E\@tzres.dll,-221 = "Alaskan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2591 = "Tocantins Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.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,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1802 = "Line Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3836 powershell.exe 3836 powershell.exe 3772 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3772 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 940 powershell.exe 940 powershell.exe 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 2896 powershell.exe 2896 powershell.exe 1956 powershell.exe 1956 powershell.exe 1148 powershell.exe 1148 powershell.exe 2224 powershell.exe 2224 powershell.exe 3464 powershell.exe 3464 powershell.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 4788 csrss.exe 4788 csrss.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 4788 csrss.exe 4788 csrss.exe 1892 injector.exe 1892 injector.exe 4788 csrss.exe 4788 csrss.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3836 powershell.exe Token: SeDebugPrivilege 3772 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Token: SeImpersonatePrivilege 3772 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe Token: SeDebugPrivilege 940 powershell.exe Token: SeDebugPrivilege 2896 powershell.exe Token: SeDebugPrivilege 1956 powershell.exe Token: SeDebugPrivilege 1148 powershell.exe Token: SeDebugPrivilege 2224 powershell.exe Token: SeDebugPrivilege 3464 powershell.exe Token: SeSystemEnvironmentPrivilege 4788 csrss.exe Token: SeSecurityPrivilege 1124 sc.exe Token: SeSecurityPrivilege 1124 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3772 wrote to memory of 3836 3772 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 82 PID 3772 wrote to memory of 3836 3772 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 82 PID 3772 wrote to memory of 3836 3772 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 82 PID 3240 wrote to memory of 940 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 88 PID 3240 wrote to memory of 940 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 88 PID 3240 wrote to memory of 940 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 88 PID 3240 wrote to memory of 596 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 90 PID 3240 wrote to memory of 596 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 90 PID 596 wrote to memory of 2504 596 cmd.exe 92 PID 596 wrote to memory of 2504 596 cmd.exe 92 PID 3240 wrote to memory of 2896 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 93 PID 3240 wrote to memory of 2896 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 93 PID 3240 wrote to memory of 2896 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 93 PID 3240 wrote to memory of 1956 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 95 PID 3240 wrote to memory of 1956 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 95 PID 3240 wrote to memory of 1956 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 95 PID 3240 wrote to memory of 4788 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 97 PID 3240 wrote to memory of 4788 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 97 PID 3240 wrote to memory of 4788 3240 b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe 97 PID 4788 wrote to memory of 1148 4788 csrss.exe 98 PID 4788 wrote to memory of 1148 4788 csrss.exe 98 PID 4788 wrote to memory of 1148 4788 csrss.exe 98 PID 4788 wrote to memory of 2224 4788 csrss.exe 104 PID 4788 wrote to memory of 2224 4788 csrss.exe 104 PID 4788 wrote to memory of 2224 4788 csrss.exe 104 PID 4788 wrote to memory of 3464 4788 csrss.exe 106 PID 4788 wrote to memory of 3464 4788 csrss.exe 106 PID 4788 wrote to memory of 3464 4788 csrss.exe 106 PID 4788 wrote to memory of 1892 4788 csrss.exe 108 PID 4788 wrote to memory of 1892 4788 csrss.exe 108 PID 4856 wrote to memory of 4740 4856 windefender.exe 114 PID 4856 wrote to memory of 4740 4856 windefender.exe 114 PID 4856 wrote to memory of 4740 4856 windefender.exe 114 PID 4740 wrote to memory of 1124 4740 cmd.exe 115 PID 4740 wrote to memory of 1124 4740 cmd.exe 115 PID 4740 wrote to memory of 1124 4740 cmd.exe 115 -
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\b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe"C:\Users\Admin\AppData\Local\Temp\b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3772 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3836
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C:\Users\Admin\AppData\Local\Temp\b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.exe"C:\Users\Admin\AppData\Local\Temp\b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70.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:3240 -
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:940
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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:596 -
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:2504
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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:2896
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1956
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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:4788 -
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:1148
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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:2672
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1504
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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:2224
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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:3464
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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:1892
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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:1364
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4856 -
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:4740 -
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:1124
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3856
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
MD592bee5628b4e3c5653f4921291aff912
SHA1d6ec8746c0ed04a388f89900fc29623b5f7d869a
SHA25662629b3fbe896fc48041580da4fc6148cf68a0e11fc32bf7eccc7c643cefe2cc
SHA51248e7946a285fea349000747a276c8a7880bfd39242a2b3556652e0ea254fecb746ef188614a3548c292c096aa9620252c3c490aa18767b42096334547e857ca1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5716a89d4f634161939236999ae115496
SHA1bb00cbdd257647d181d51e3ca304398264830137
SHA2568c287f4343ca2464c74ca8d84beeaf1618c8e73b9739676c70b3269def69042d
SHA512245da5e7609b505fe601d964c8f2a8914a87d696216fdeb06817d902aef8ddaad9d03778afd5e682ce047a8be10ef6364e87ec0fa2e896a1d1b622879fa2f280
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58132e36b4b3f099ffcf951ea830975a8
SHA120622b27ccb15c8668b8c0f8774226b8e3671079
SHA256c292f6caac78621fee592448a329d26e36fd2b4e954c0b8f2d45b32ee7a3e624
SHA5122337a35b2cad4c2fd505ff4e3935278635ec7c723055da294480e3089579bbf3877e14458fc83a449a4936b2d122043a5e4e7791bdb1619bf7508dea1ad7df7a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58d13a53f28707996050b7a7d10e03ce1
SHA1b64a502684447561072058469a1c044955ea2c50
SHA2569be815507f0d40140be7805290dc1c64267dee24cd1ac09c486e9871bdf0313c
SHA5120d116a1a06d908c35bd1a9df911a20e6d7539c9212e82c2ffaf68d64697ba7a3b92e1fe3c904b2d9733863d66912b72739ef626a50576ba2547dcf4c44d3984f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57fdc9c97d29a1df5c69f11b1c581c0bb
SHA162e6e5bae5767553270e7a25da40ff904db5b801
SHA256ac4465d47fc27dbb8efd3ca97e1d38e54efe5e3e5f21d6fa3847503173c97353
SHA512a702357c9d5e38ade472e95d97ff58a7cd79d28d00bfe5e8623640fcf92784c58885fb20037b0e52196fcc0b147efd8be4c76cc19b0bf54603bca50bebbd17bb
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Filesize
4.1MB
MD5617840f6e2dbf1078532fd19df645752
SHA14d4dd1a1af1a49d86dc17524eeb7427880d26083
SHA256b591d9d96e9f7d69b54def3954ca8bdf5ce559942b59c8908f2fc3b6bcad0a70
SHA512b445965e844bf547ba32b1d6a36f29ee7a97b7b41085c9f7d133610b1d448f096d87c29e3a82c6005fe94b3521b52fc9fe4bd8ee69bf4ef10b29c475ce02fd52
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec