Analysis
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max time kernel
150s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 21:52
Static task
static1
Behavioral task
behavioral1
Sample
b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe
Resource
win10v2004-20240508-en
General
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Target
b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe
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Size
4.1MB
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MD5
9e455625951b6da37cf8edae5b4467f8
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SHA1
8b38c23923f96dd13a3fef1eca7d220fe28f9b8c
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SHA256
b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f
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SHA512
6a889207cd28b436a3fd47d8a3a51702c7ce95151e39894468fe638643f21e6aebcfe98047bdbe4976dd37470c981c94bcbd4913f145c2f0192c786f87ccc98b
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SSDEEP
98304:sX33DbWGkLHuFK+TwQmBC6reQ4TTNXYvI8KgvjrB0rM:sXPWAwQyCdJYw8KggM
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/920-2-0x00000000048E0000-0x00000000051CB000-memory.dmp family_glupteba behavioral1/memory/920-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/920-77-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/920-105-0x00000000048E0000-0x00000000051CB000-memory.dmp family_glupteba behavioral1/memory/920-158-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/452-157-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4388-214-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4388-225-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4388-228-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4388-232-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4388-236-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4388-241-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4388-245-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4388-248-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4388-252-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4388-256-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4388-261-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4388-264-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4388-268-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1648 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4388 csrss.exe 1764 injector.exe 1568 windefender.exe 4888 windefender.exe -
resource yara_rule behavioral1/files/0x00090000000233ea-218.dat upx behavioral1/memory/1568-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1568-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4888-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4888-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4888-237-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\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 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 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 -
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 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe File created C:\Windows\rss\csrss.exe b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe File created C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3260 sc.exe -
pid Process 1628 powershell.exe 2216 powershell.exe 1352 powershell.exe 1936 powershell.exe 3192 powershell.exe 2124 powershell.exe 4672 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 3844 schtasks.exe 4984 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-231 = "Hawaiian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 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,-1891 = "Russia TZ 3 Daylight Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 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\2a\52C64B7E\@tzres.dll,-931 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-272 = "Greenwich Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-772 = "Montevideo Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-661 = "Cen. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2872 = "Magallanes Standard 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,-2062 = "North Korea Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-364 = "Middle East Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1352 powershell.exe 1352 powershell.exe 920 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 920 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 1936 powershell.exe 1936 powershell.exe 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 3192 powershell.exe 3192 powershell.exe 2124 powershell.exe 2124 powershell.exe 4672 powershell.exe 4672 powershell.exe 1628 powershell.exe 1628 powershell.exe 2216 powershell.exe 2216 powershell.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 4388 csrss.exe 4388 csrss.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 4388 csrss.exe 4388 csrss.exe 1764 injector.exe 1764 injector.exe 4388 csrss.exe 4388 csrss.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe 1764 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1352 powershell.exe Token: SeDebugPrivilege 920 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Token: SeImpersonatePrivilege 920 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Token: SeDebugPrivilege 1936 powershell.exe Token: SeDebugPrivilege 3192 powershell.exe Token: SeDebugPrivilege 2124 powershell.exe Token: SeDebugPrivilege 4672 powershell.exe Token: SeDebugPrivilege 1628 powershell.exe Token: SeDebugPrivilege 2216 powershell.exe Token: SeSystemEnvironmentPrivilege 4388 csrss.exe Token: SeSecurityPrivilege 3260 sc.exe Token: SeSecurityPrivilege 3260 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 920 wrote to memory of 1352 920 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 83 PID 920 wrote to memory of 1352 920 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 83 PID 920 wrote to memory of 1352 920 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 83 PID 452 wrote to memory of 1936 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 91 PID 452 wrote to memory of 1936 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 91 PID 452 wrote to memory of 1936 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 91 PID 452 wrote to memory of 5080 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 95 PID 452 wrote to memory of 5080 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 95 PID 5080 wrote to memory of 1648 5080 cmd.exe 97 PID 5080 wrote to memory of 1648 5080 cmd.exe 97 PID 452 wrote to memory of 3192 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 98 PID 452 wrote to memory of 3192 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 98 PID 452 wrote to memory of 3192 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 98 PID 452 wrote to memory of 2124 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 100 PID 452 wrote to memory of 2124 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 100 PID 452 wrote to memory of 2124 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 100 PID 452 wrote to memory of 4388 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 102 PID 452 wrote to memory of 4388 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 102 PID 452 wrote to memory of 4388 452 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 102 PID 4388 wrote to memory of 4672 4388 csrss.exe 103 PID 4388 wrote to memory of 4672 4388 csrss.exe 103 PID 4388 wrote to memory of 4672 4388 csrss.exe 103 PID 4388 wrote to memory of 1628 4388 csrss.exe 109 PID 4388 wrote to memory of 1628 4388 csrss.exe 109 PID 4388 wrote to memory of 1628 4388 csrss.exe 109 PID 4388 wrote to memory of 2216 4388 csrss.exe 111 PID 4388 wrote to memory of 2216 4388 csrss.exe 111 PID 4388 wrote to memory of 2216 4388 csrss.exe 111 PID 4388 wrote to memory of 1764 4388 csrss.exe 113 PID 4388 wrote to memory of 1764 4388 csrss.exe 113 PID 1568 wrote to memory of 2900 1568 windefender.exe 120 PID 1568 wrote to memory of 2900 1568 windefender.exe 120 PID 1568 wrote to memory of 2900 1568 windefender.exe 120 PID 2900 wrote to memory of 3260 2900 cmd.exe 121 PID 2900 wrote to memory of 3260 2900 cmd.exe 121 PID 2900 wrote to memory of 3260 2900 cmd.exe 121 -
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\b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe"C:\Users\Admin\AppData\Local\Temp\b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:920 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1352
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C:\Users\Admin\AppData\Local\Temp\b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe"C:\Users\Admin\AppData\Local\Temp\b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.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:452 -
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:1936
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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:5080 -
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:1648
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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:3192
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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:2124
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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:4388 -
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:4672
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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:3844
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2896
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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:1628
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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:2216
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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:1764
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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:4984
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1568 -
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:2900 -
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:3260
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4888
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56362d5a5b9b048ba88dc35ce46d6cd2e
SHA166192ebb1daf75d5decb3b6f6fa13e1015f43420
SHA2568f8621086f5b9934b8f77b874df0ad9668ec780aa99009b2693dafaf671348ee
SHA512fa3a477b5d523ed9497119d9062ca8daf9da10b8f05712c39e136c195e8bfe178577f7052f6e5796e5349fc78187aeae9223e3940c50043128a90244122186d0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e25976cc1c9de2261d076390f9e8f34c
SHA178d9c9e55e05104cb313f320e8060ceb514af730
SHA2561110c3f29a5526df1f0a1167b6cee5ac6680cbf1de50c8148facea34341e7d11
SHA5127390178cf3f92c60cb7fd421667ee5b3e6d9920364ba824d97d5284b65f3f7e741d7e9333684d8fc68d4ec8ed3c066bf6e26af3d6a4afbafa1ad29dcee8b3ecd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5043c9557378793b9c543d27042313492
SHA1da62159e9bf73a467c9034df8060ec75d51eb4b8
SHA256b00b7ee3e481e0c82bdb67bf13422fa0856579e837efc2731d2c7a33e0aeef9f
SHA512c6e9747b817261a6419a3515361185de08e79eb9912cd5dd3aba8e7496ac763bf53cb523412cc4f09f3fff4a50c5a82d387f0697ca1078b70e6e580051ec0bb0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56302589244ea9ef584cd495906704d51
SHA121fe41d3856c4cf0d825eeb6b6d5491d0468a86d
SHA2562db692c71ac32b2fefdf7ff832a03029f4c1a3d1b51ee6840f779e2ecb4f56c9
SHA5126c3e617721c204f02e25fd411606a2898aab9e09b4ef19533cc2686fcfce075b9ff0c79a56b5e6bdbf4409092d74362df00a793a2992036921cac6ca070b0ecd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59feb6e76cdc293619242be5d244e06f2
SHA176b732841dcaf2e2bde9d26a24874654116d6b2e
SHA256452cb01f408a97f76921e938b3fb96e8470dd9b00f769573becda66fa5d947b8
SHA512866a335ae00aaa88a962d8fd451ac06c8edd58f36d6c59eecdb42df38bc6520b152e9dcc9c70ef9030ee0819443adda9a69871664487a3da2f35954823cdea09
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Filesize
4.1MB
MD59e455625951b6da37cf8edae5b4467f8
SHA18b38c23923f96dd13a3fef1eca7d220fe28f9b8c
SHA256b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f
SHA5126a889207cd28b436a3fd47d8a3a51702c7ce95151e39894468fe638643f21e6aebcfe98047bdbe4976dd37470c981c94bcbd4913f145c2f0192c786f87ccc98b
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec