Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-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 behavioral2/memory/2932-2-0x0000000004B00000-0x00000000053EB000-memory.dmp family_glupteba behavioral2/memory/2932-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2932-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2932-54-0x0000000004B00000-0x00000000053EB000-memory.dmp family_glupteba behavioral2/memory/2932-51-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1940-125-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4788-203-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4788-213-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4788-215-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4788-217-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4788-219-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4788-221-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4788-223-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4788-225-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4788-227-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4788-229-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4788-231-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4788-233-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4788-235-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2444 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4788 csrss.exe 4236 injector.exe 5000 windefender.exe 5116 windefender.exe -
resource yara_rule behavioral2/memory/5000-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/files/0x000200000002aa1e-207.dat upx behavioral2/memory/5116-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5000-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5116-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5116-218-0x0000000000400000-0x00000000008DF000-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\"" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.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\"" 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 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 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe -
Drops file in Windows directory 4 IoCs
description ioc Process 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 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 3828 sc.exe -
pid Process 2376 powershell.exe 2076 powershell.exe 4196 powershell.exe 1624 powershell.exe 4188 powershell.exe 4628 powershell.exe 5096 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 1912 schtasks.exe 3292 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,-141 = "Canada Central Daylight Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\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\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.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,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.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\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,-434 = "Georgian Daylight Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\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,-1832 = "Russia TZ 2 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 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,-571 = "China Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.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\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2771 = "Omsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2376 powershell.exe 2376 powershell.exe 2932 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 2932 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 2076 powershell.exe 2076 powershell.exe 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 4196 powershell.exe 4196 powershell.exe 1624 powershell.exe 1624 powershell.exe 4188 powershell.exe 4188 powershell.exe 4628 powershell.exe 4628 powershell.exe 5096 powershell.exe 5096 powershell.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4788 csrss.exe 4788 csrss.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4788 csrss.exe 4788 csrss.exe 4236 injector.exe 4236 injector.exe 4788 csrss.exe 4788 csrss.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe 4236 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2376 powershell.exe Token: SeDebugPrivilege 2932 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Token: SeImpersonatePrivilege 2932 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe Token: SeDebugPrivilege 2076 powershell.exe Token: SeDebugPrivilege 4196 powershell.exe Token: SeDebugPrivilege 1624 powershell.exe Token: SeDebugPrivilege 4188 powershell.exe Token: SeDebugPrivilege 4628 powershell.exe Token: SeDebugPrivilege 5096 powershell.exe Token: SeSystemEnvironmentPrivilege 4788 csrss.exe Token: SeSecurityPrivilege 3828 sc.exe Token: SeSecurityPrivilege 3828 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2932 wrote to memory of 2376 2932 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 79 PID 2932 wrote to memory of 2376 2932 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 79 PID 2932 wrote to memory of 2376 2932 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 79 PID 1940 wrote to memory of 2076 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 84 PID 1940 wrote to memory of 2076 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 84 PID 1940 wrote to memory of 2076 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 84 PID 1940 wrote to memory of 2272 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 86 PID 1940 wrote to memory of 2272 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 86 PID 2272 wrote to memory of 2444 2272 cmd.exe 88 PID 2272 wrote to memory of 2444 2272 cmd.exe 88 PID 1940 wrote to memory of 4196 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 89 PID 1940 wrote to memory of 4196 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 89 PID 1940 wrote to memory of 4196 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 89 PID 1940 wrote to memory of 1624 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 91 PID 1940 wrote to memory of 1624 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 91 PID 1940 wrote to memory of 1624 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 91 PID 1940 wrote to memory of 4788 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 93 PID 1940 wrote to memory of 4788 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 93 PID 1940 wrote to memory of 4788 1940 b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f.exe 93 PID 4788 wrote to memory of 4188 4788 csrss.exe 94 PID 4788 wrote to memory of 4188 4788 csrss.exe 94 PID 4788 wrote to memory of 4188 4788 csrss.exe 94 PID 4788 wrote to memory of 4628 4788 csrss.exe 100 PID 4788 wrote to memory of 4628 4788 csrss.exe 100 PID 4788 wrote to memory of 4628 4788 csrss.exe 100 PID 4788 wrote to memory of 5096 4788 csrss.exe 102 PID 4788 wrote to memory of 5096 4788 csrss.exe 102 PID 4788 wrote to memory of 5096 4788 csrss.exe 102 PID 4788 wrote to memory of 4236 4788 csrss.exe 104 PID 4788 wrote to memory of 4236 4788 csrss.exe 104 PID 5000 wrote to memory of 464 5000 windefender.exe 110 PID 5000 wrote to memory of 464 5000 windefender.exe 110 PID 5000 wrote to memory of 464 5000 windefender.exe 110 PID 464 wrote to memory of 3828 464 cmd.exe 111 PID 464 wrote to memory of 3828 464 cmd.exe 111 PID 464 wrote to memory of 3828 464 cmd.exe 111 -
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:2932 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2376
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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:1940 -
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:2076
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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:2272 -
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:2444
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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:4196
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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:1624
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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:4188
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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:1912
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1220
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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:4628
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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:5096
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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:4236
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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:3292
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:5000 -
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:464 -
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:3828
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:5116
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
MD52921c1610c17b84c620e55f9cb297ca4
SHA1dd8a14d411689f9333ea830357ee781317710216
SHA2560c6588df2c3e14d25914c04c00b67d33e07ad4b38e1cc7c12c1425a6a6305882
SHA512be88cc31f1ce2801d09de185c2b3c7f5f5fe751742cea36ee35db095c465ec7e48bb0685036d59b34cec219874e54191e31ec0ce02ae3717c4f1df32df1a945e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e7845aec14f7b4670925e7616905134d
SHA1be512758d5db044043aaf98d7609084cb104d354
SHA256023b3b91d75156a0dc555488c2e695eb9589467ea3d942c48e9e8e0f40eac271
SHA512d03ef22723d2e7d64c6c9e60f25ea888caf85785a438e2363e8f1a16b11665325b09f9e1c7dea0fec3b99a0372d26f9dc3113a9e16578b22eac9ed9c3fc9282a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cb44b1cd30cc445800804d4bb84e377d
SHA11ea07580705002f37a5c4d9810f134e3bdc57204
SHA2564a37ef2483ebab220709e9bbf93b8d65e96418720960443d239e8874cb94b8b0
SHA5121b2060af7afeebeb9a506b5df1b57705cec77182ea484894fea77bb8a2953b95aac44709bf28288e04e51735805310b07163feb5af23dae231b58036220e701b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD581acecfbcdc6dae052ca2ba7a6f908cf
SHA1d38456402e6e4ddbd25e57f4cbf1b291de4ad9b3
SHA256ede403ab7e14ef24923abd7860caa4d585c2fcb62141d94d3b2041382b722aba
SHA5123b81b5c19437ebfd714bc1e46d25de345d0b798a56ccc990b72a4efce372ad12794b49f2490e8344a56249aec485245a44828064b963f3dbbc3de0c3dffdbefa
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ce8cc4df7d1e9c34d8641617e071620d
SHA19ffd6cae23b46ebdd9a64b00abbb11b67d423e31
SHA256dee5531c4e017f3230fb63555690b29f2d2ea14e07cd39cc45f894867ca13a3f
SHA51272460c7f90b54193746c4ce58b2c8b857c68ec46bc1b5efe56535017477e7eb95804ca6d15026b982c70534a990f7b6a8914beadcb8b62061986ea39be743cb0
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Filesize
4.1MB
MD59e455625951b6da37cf8edae5b4467f8
SHA18b38c23923f96dd13a3fef1eca7d220fe28f9b8c
SHA256b38cbacf77556266fccf238540791320d7c9b0400e561e1a0b0b232b4da30c7f
SHA5126a889207cd28b436a3fd47d8a3a51702c7ce95151e39894468fe638643f21e6aebcfe98047bdbe4976dd37470c981c94bcbd4913f145c2f0192c786f87ccc98b
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec