Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
18/05/2024, 16:55
Static task
static1
Behavioral task
behavioral1
Sample
49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe
Resource
win10v2004-20240426-en
General
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Target
49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe
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Size
4.1MB
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MD5
32441a4dca0530aedda30463e4f891e4
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SHA1
c1ba27a358e438cf3ce59c84e26a661145c27808
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SHA256
49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336
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SHA512
1009cc232b70637c7631e1b9f267f65a437acc77b6da7a82d73ad02950f4d54d63b08891dd0485ed037decdd336a4c9aff98010627ccb161c2496a67e26c4228
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SSDEEP
98304:Ac7aFVXn+Lid2bryXaMbaClZg093y0sFFfdliBdPq:AX++d2b0aMbplZO0sFfSq
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/4920-2-0x0000000004850000-0x000000000513B000-memory.dmp family_glupteba behavioral1/memory/4920-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1936-130-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral1/memory/4920-133-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral1/memory/4920-168-0x0000000004850000-0x000000000513B000-memory.dmp family_glupteba behavioral1/memory/4920-205-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4664-213-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral1/memory/4664-215-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral1/memory/4664-217-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral1/memory/4664-219-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral1/memory/4664-221-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral1/memory/4664-223-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral1/memory/4664-225-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral1/memory/4664-227-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral1/memory/4664-229-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral1/memory/4664-231-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral1/memory/4664-233-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral1/memory/4664-235-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral1/memory/4664-237-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4892 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 4664 csrss.exe 4476 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe File opened for modification C:\Windows\rss 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe -
pid Process 4656 powershell.exe 2620 powershell.exe 4912 powershell.exe 876 powershell.exe 1720 powershell.exe 1868 powershell.exe 3248 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 2352 schtasks.exe 2172 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,-2771 = "Omsk Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs 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\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates 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\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs 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" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.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\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.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\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.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\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.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" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.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\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4656 powershell.exe 4656 powershell.exe 4920 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 4920 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 2620 powershell.exe 2620 powershell.exe 2620 powershell.exe 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 4912 powershell.exe 4912 powershell.exe 4912 powershell.exe 876 powershell.exe 876 powershell.exe 876 powershell.exe 1720 powershell.exe 1720 powershell.exe 1720 powershell.exe 1868 powershell.exe 1868 powershell.exe 3248 powershell.exe 3248 powershell.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4664 csrss.exe 4664 csrss.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4664 csrss.exe 4664 csrss.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe 4476 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 4656 powershell.exe Token: SeDebugPrivilege 4920 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Token: SeImpersonatePrivilege 4920 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Token: SeDebugPrivilege 2620 powershell.exe Token: SeDebugPrivilege 4912 powershell.exe Token: SeDebugPrivilege 876 powershell.exe Token: SeDebugPrivilege 1720 powershell.exe Token: SeDebugPrivilege 1868 powershell.exe Token: SeDebugPrivilege 3248 powershell.exe Token: SeSystemEnvironmentPrivilege 4664 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 4920 wrote to memory of 4656 4920 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 86 PID 4920 wrote to memory of 4656 4920 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 86 PID 4920 wrote to memory of 4656 4920 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 86 PID 1936 wrote to memory of 2620 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 97 PID 1936 wrote to memory of 2620 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 97 PID 1936 wrote to memory of 2620 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 97 PID 1936 wrote to memory of 3756 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 101 PID 1936 wrote to memory of 3756 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 101 PID 3756 wrote to memory of 4892 3756 cmd.exe 103 PID 3756 wrote to memory of 4892 3756 cmd.exe 103 PID 1936 wrote to memory of 4912 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 104 PID 1936 wrote to memory of 4912 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 104 PID 1936 wrote to memory of 4912 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 104 PID 1936 wrote to memory of 876 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 106 PID 1936 wrote to memory of 876 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 106 PID 1936 wrote to memory of 876 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 106 PID 1936 wrote to memory of 4664 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 108 PID 1936 wrote to memory of 4664 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 108 PID 1936 wrote to memory of 4664 1936 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 108 PID 4664 wrote to memory of 1720 4664 csrss.exe 109 PID 4664 wrote to memory of 1720 4664 csrss.exe 109 PID 4664 wrote to memory of 1720 4664 csrss.exe 109 PID 4664 wrote to memory of 1868 4664 csrss.exe 115 PID 4664 wrote to memory of 1868 4664 csrss.exe 115 PID 4664 wrote to memory of 1868 4664 csrss.exe 115 PID 4664 wrote to memory of 3248 4664 csrss.exe 117 PID 4664 wrote to memory of 3248 4664 csrss.exe 117 PID 4664 wrote to memory of 3248 4664 csrss.exe 117 PID 4664 wrote to memory of 4476 4664 csrss.exe 119 PID 4664 wrote to memory of 4476 4664 csrss.exe 119 -
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\49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe"C:\Users\Admin\AppData\Local\Temp\49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4920 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4656
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C:\Users\Admin\AppData\Local\Temp\49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe"C:\Users\Admin\AppData\Local\Temp\49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.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:1936 -
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:2620
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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:3756 -
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:4892
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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:4912
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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:876
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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.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4664 -
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:1720
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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:2352
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4336
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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:1868
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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:3248
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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:4476
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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:2172
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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
MD551594a465ea77ac003b4a96ad94e14a8
SHA1eacfa554eab67c469fff214fc09bb143af85d3d3
SHA25635a465ac27474e3b001dab56b24f85262b41ad0d21d202adde10535627b6c8f2
SHA512dccb5d3a32c461c60b39ed5c1849beaf75b3728b52137df445dcbf8cb07222be19ffa8d98cecc73ed99f24bb59f0352c132713427249e7997281556d94b9d5a7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57d4e1f0e278713090726ba10dddf710d
SHA184d25bc6f0bc4816ddb091d74b20d535332818e2
SHA256ecda6ffee27474eea9210ac084b72a5817f3af066158867014c0d6aea2a0f09b
SHA51280c8a65f420bc7a85d3a749a2a21311f82f161960914d978cdff58fc502fb5e3720c3553e7dd16a196edff525969c17cbce8d50c8938b604a4ebf3e1c763059e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50a41651f4410f1d0b84c99012e5c4d35
SHA1139a09b4c889f911b8d95bee71171f3109aef5ec
SHA25697e679f4b6a0a1e7c8b0f7c0f28b97e7cfcbcb30392903dc8ce95a2863130e5a
SHA5123e01cf4cddfad0561a0315bb691df43b7b12b4dabab907315641006d5e95f0474ddf08763f1aef051db0eca86ec0fa330ea24f286ba6db1c2de68ccdf04c0886
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b00f0d31d888940da5990a8a79ce146e
SHA1c779aaa4fc8b89257597d6094c6aeca205f3435e
SHA25612249da7db95e7de8fb363f86d55a41af82c581610f5fb25428d5679b90df716
SHA5129134aecdc7bf2b9a43a61428d8f53a2ebfe3a804e8fef33b2e7369e9a24d1f9604ca69029a552819dccb41576fd8db648532b988a7315c16347114d822d14720
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5479063fd7dbaee5900fa3bbc81fd4582
SHA13bc95d0f7c739330bdf484ba11e52206dcf54a9a
SHA25678bfe39a2fcbd3f704bc06e270839f11fd104c1842560aa9cb0dbae4b57c6350
SHA5123f501892f9057beaff0752ee0495378dd4b1fcf84cf74d18ae1d1ee50f7b719c97d9c0e9a7c190bff0e0adb1fc73595c412dc44ad6c19df865193b33a01d566a
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Filesize
4.1MB
MD532441a4dca0530aedda30463e4f891e4
SHA1c1ba27a358e438cf3ce59c84e26a661145c27808
SHA25649a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336
SHA5121009cc232b70637c7631e1b9f267f65a437acc77b6da7a82d73ad02950f4d54d63b08891dd0485ed037decdd336a4c9aff98010627ccb161c2496a67e26c4228