Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
15/05/2024, 23:57
Static task
static1
Behavioral task
behavioral1
Sample
bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe
Resource
win7-20240221-en
General
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Target
bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe
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Size
4.1MB
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MD5
c6d95408372f488cbf3a36d5a80448b9
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SHA1
e7914c3d193fbcd3c2d6fbea3c0e912df44969c3
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SHA256
bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3
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SHA512
050b81c3676b1309e590c5c7fa1e7c5bbb31cbcf67f6a8ba84679df48b7f551181077b55934484f739618044b658afc7f83a8ebe6554b39639cee0057319f904
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SSDEEP
98304:/sj80k8u7e4te7QNzi5j0edbbHwu+w5lmM0XQnZ:/g9u7eueIzil0SbrHmM0s
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/1868-2-0x0000000004C60000-0x000000000554B000-memory.dmp family_glupteba behavioral2/memory/1868-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1868-55-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/1868-57-0x0000000004C60000-0x000000000554B000-memory.dmp family_glupteba behavioral2/memory/1868-119-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1892-118-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/1892-138-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4908-219-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4908-231-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4908-235-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4908-239-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4908-243-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4908-247-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4908-250-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4908-255-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4908-259-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4908-263-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4908-267-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2296 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4908 csrss.exe 3116 injector.exe 4388 windefender.exe 1436 windefender.exe -
resource yara_rule behavioral2/files/0x0008000000023430-222.dat upx behavioral2/memory/4388-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1436-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4388-230-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1436-234-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1436-242-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Set value (str) \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\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 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 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe File created C:\Windows\rss\csrss.exe bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1556 sc.exe -
pid Process 3440 powershell.exe 2112 powershell.exe 4616 powershell.exe 4684 powershell.exe 3260 powershell.exe 3460 powershell.exe 4508 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 4684 schtasks.exe 4696 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs 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\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-251 = "Dateline Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1891 = "Russia TZ 3 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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard 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,-671 = "AUS Eastern Daylight Time" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.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" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates 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\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-161 = "Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard 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" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-651 = "AUS Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-162 = "Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4616 powershell.exe 4616 powershell.exe 1868 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 1868 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 4684 powershell.exe 4684 powershell.exe 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 3260 powershell.exe 3260 powershell.exe 3460 powershell.exe 3460 powershell.exe 4508 powershell.exe 4508 powershell.exe 3440 powershell.exe 3440 powershell.exe 2112 powershell.exe 2112 powershell.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 4908 csrss.exe 4908 csrss.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 4908 csrss.exe 4908 csrss.exe 3116 injector.exe 3116 injector.exe 4908 csrss.exe 4908 csrss.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe 3116 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4616 powershell.exe Token: SeDebugPrivilege 1868 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Token: SeImpersonatePrivilege 1868 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe Token: SeDebugPrivilege 4684 powershell.exe Token: SeDebugPrivilege 3260 powershell.exe Token: SeDebugPrivilege 3460 powershell.exe Token: SeDebugPrivilege 4508 powershell.exe Token: SeDebugPrivilege 3440 powershell.exe Token: SeDebugPrivilege 2112 powershell.exe Token: SeSystemEnvironmentPrivilege 4908 csrss.exe Token: SeSecurityPrivilege 1556 sc.exe Token: SeSecurityPrivilege 1556 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1868 wrote to memory of 4616 1868 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 93 PID 1868 wrote to memory of 4616 1868 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 93 PID 1868 wrote to memory of 4616 1868 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 93 PID 1892 wrote to memory of 4684 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 99 PID 1892 wrote to memory of 4684 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 99 PID 1892 wrote to memory of 4684 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 99 PID 1892 wrote to memory of 2228 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 101 PID 1892 wrote to memory of 2228 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 101 PID 2228 wrote to memory of 2296 2228 cmd.exe 103 PID 2228 wrote to memory of 2296 2228 cmd.exe 103 PID 1892 wrote to memory of 3260 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 104 PID 1892 wrote to memory of 3260 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 104 PID 1892 wrote to memory of 3260 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 104 PID 1892 wrote to memory of 3460 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 106 PID 1892 wrote to memory of 3460 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 106 PID 1892 wrote to memory of 3460 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 106 PID 1892 wrote to memory of 4908 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 108 PID 1892 wrote to memory of 4908 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 108 PID 1892 wrote to memory of 4908 1892 bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe 108 PID 4908 wrote to memory of 4508 4908 csrss.exe 111 PID 4908 wrote to memory of 4508 4908 csrss.exe 111 PID 4908 wrote to memory of 4508 4908 csrss.exe 111 PID 4908 wrote to memory of 3440 4908 csrss.exe 117 PID 4908 wrote to memory of 3440 4908 csrss.exe 117 PID 4908 wrote to memory of 3440 4908 csrss.exe 117 PID 4908 wrote to memory of 2112 4908 csrss.exe 119 PID 4908 wrote to memory of 2112 4908 csrss.exe 119 PID 4908 wrote to memory of 2112 4908 csrss.exe 119 PID 4908 wrote to memory of 3116 4908 csrss.exe 121 PID 4908 wrote to memory of 3116 4908 csrss.exe 121 PID 4388 wrote to memory of 1476 4388 windefender.exe 127 PID 4388 wrote to memory of 1476 4388 windefender.exe 127 PID 4388 wrote to memory of 1476 4388 windefender.exe 127 PID 1476 wrote to memory of 1556 1476 cmd.exe 128 PID 1476 wrote to memory of 1556 1476 cmd.exe 128 PID 1476 wrote to memory of 1556 1476 cmd.exe 128 -
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\bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe"C:\Users\Admin\AppData\Local\Temp\bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1868 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4616
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C:\Users\Admin\AppData\Local\Temp\bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.exe"C:\Users\Admin\AppData\Local\Temp\bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3.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:1892 -
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:4684
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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:2228 -
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:2296
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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:3260
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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:3460
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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:4908 -
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:4508
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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:4684
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4404
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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:3440
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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:2112
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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:3116
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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:4696
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4388 -
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:1476 -
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:1556
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1436
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
MD56ac71d05f6ff6051a106f95a44d8896c
SHA1e4bcf2bf812edd1cb612da38644287d64b3da8a0
SHA2569a399b416fe72d91926bd57267c22309dd03be7d98d40cc41653d202408afcde
SHA5125ddb6d7fb77ef3671744b3dc8513b0997104255ebab05025460ca337ead3940e776247608ec7c9768a4bc70ef927aa1eda98a937fa9b2729749f4818450e12f2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fb27d16c78a2573fa6b87621a52c67d6
SHA192441c83fd4fbab3cddd13ec5a359d47855fa1dc
SHA256b77455b9768a15b1bb2fff6a4498530ac31a4e03e72821390b0cffa6974f32ee
SHA5123451e5a0129fd8d24c1398bc264a75a73fd31b6d43bb19b75d3d1bfaed4ec81eaf3f72281cdb5aa068bd47b7733e79c6783c6ba4116189a9eab3ef45485f12f2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c47b8af38531e632423194d2f9d6abd4
SHA16b654781dec187cffb580eccade78b5fa2c8291c
SHA256bf866b67643b1f97d7ad2c0d8cabfbd83417274f27d8e1ee07d758dc8c27fde5
SHA51254ab704c240ceb62b667871f10dc12418f89f8f04b540bad36951d88fe56833ba2aed0ec16c97c39b15339e9b3d0f1a75657491a01e5a1cd1dfb9f2f7b470d33
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57306a352d165c0a53c74d8875087854b
SHA1a4015884ede5f44214c8362d558ba6a6f8837cd0
SHA2568fdb127b2ccd7b99777979250bba46d264305eaee2aa074b3a8ff5d7ff4bbef8
SHA512e28b1cbe0ef221f6e0ffa611fa9c937ea21613cfdb0007adfc01395ed3955e62b70f17994daee44570f808178147dc5a4b01d80926dcd9b662a0e87a67349499
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD596a82e4b77879770b9ba7d021f1f08a3
SHA1dcc585a8e8b9fa818ef7cab025a9279066c63f28
SHA256b0d96766f758be8ffb5e79c92a16eef0ca2161ae0dc871b338732fe077018e96
SHA51210efa10bc768e9afebc9b5fcd2e480677f93528fc87f3228dd078f6d91a400ec0df835e760b4f38842cb7e54f60835236615c8cdab7f2ff32fc50f37655a8245
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Filesize
4.1MB
MD5c6d95408372f488cbf3a36d5a80448b9
SHA1e7914c3d193fbcd3c2d6fbea3c0e912df44969c3
SHA256bf27bac5ca5fd8f1b991836540d8cb7c4a29b443579ab6a182ce805048d745e3
SHA512050b81c3676b1309e590c5c7fa1e7c5bbb31cbcf67f6a8ba84679df48b7f551181077b55934484f739618044b658afc7f83a8ebe6554b39639cee0057319f904
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec