Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
17-05-2024 13:25
Static task
static1
Behavioral task
behavioral1
Sample
bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe
Resource
win10v2004-20240508-en
General
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Target
bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe
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Size
4.1MB
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MD5
1bacb5aadaabb6e4b152ff2ce5fbd65b
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SHA1
2b3768b2b80a5ea2ce90de1026e68bbd4943dd33
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SHA256
bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729
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SHA512
df1d9660df44e66ba67bbfd12084e6bac3cc7c4f1bfcd95c4567dece92d964a2e737f2e11e1581117a14cc66491106c1dbd3ca9c9dbdbb074951d1c31da864f3
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SSDEEP
98304:MQJMl/iXMhTmfDhNRe9xfYVEx7xkD10HZd3scl3XzHAtmo0Fq:Hb8hTmbBIxHPR3rn3oKq
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/916-2-0x0000000004CB0000-0x000000000559B000-memory.dmp family_glupteba behavioral1/memory/916-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/916-4-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/916-57-0x0000000004CB0000-0x000000000559B000-memory.dmp family_glupteba behavioral1/memory/916-58-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/916-55-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/524-98-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/524-138-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3872-179-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3872-222-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3872-223-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3872-224-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3872-225-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3872-226-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3872-227-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3872-228-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3872-229-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3872-230-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/3872-231-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4468 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 3872 csrss.exe 368 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\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 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 -
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 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe File created C:\Windows\rss\csrss.exe bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe -
pid Process 1208 powershell.exe 4656 powershell.exe 4936 powershell.exe 1624 powershell.exe 1620 powershell.exe 4892 powershell.exe 388 powershell.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 4804 524 WerFault.exe 99 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2604 schtasks.exe 4564 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,-1661 = "Bahia Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs 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,-151 = "Central America Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.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\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs 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\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.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,-461 = "Afghanistan Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\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\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.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,-2411 = "Marquesas Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.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,-221 = "Alaskan Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1624 powershell.exe 1624 powershell.exe 916 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 916 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 1620 powershell.exe 1620 powershell.exe 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 4892 powershell.exe 4892 powershell.exe 388 powershell.exe 388 powershell.exe 1208 powershell.exe 1208 powershell.exe 4656 powershell.exe 4656 powershell.exe 4936 powershell.exe 4936 powershell.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 3872 csrss.exe 3872 csrss.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 3872 csrss.exe 3872 csrss.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe 368 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 1624 powershell.exe Token: SeDebugPrivilege 916 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Token: SeImpersonatePrivilege 916 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Token: SeDebugPrivilege 1620 powershell.exe Token: SeDebugPrivilege 4892 powershell.exe Token: SeDebugPrivilege 388 powershell.exe Token: SeDebugPrivilege 1208 powershell.exe Token: SeDebugPrivilege 4656 powershell.exe Token: SeDebugPrivilege 4936 powershell.exe Token: SeSystemEnvironmentPrivilege 3872 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 916 wrote to memory of 1624 916 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 95 PID 916 wrote to memory of 1624 916 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 95 PID 916 wrote to memory of 1624 916 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 95 PID 524 wrote to memory of 1620 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 100 PID 524 wrote to memory of 1620 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 100 PID 524 wrote to memory of 1620 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 100 PID 524 wrote to memory of 3652 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 102 PID 524 wrote to memory of 3652 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 102 PID 3652 wrote to memory of 4468 3652 cmd.exe 104 PID 3652 wrote to memory of 4468 3652 cmd.exe 104 PID 524 wrote to memory of 4892 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 105 PID 524 wrote to memory of 4892 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 105 PID 524 wrote to memory of 4892 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 105 PID 524 wrote to memory of 388 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 108 PID 524 wrote to memory of 388 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 108 PID 524 wrote to memory of 388 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 108 PID 524 wrote to memory of 3872 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 110 PID 524 wrote to memory of 3872 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 110 PID 524 wrote to memory of 3872 524 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 110 PID 3872 wrote to memory of 1208 3872 csrss.exe 115 PID 3872 wrote to memory of 1208 3872 csrss.exe 115 PID 3872 wrote to memory of 1208 3872 csrss.exe 115 PID 3872 wrote to memory of 4656 3872 csrss.exe 121 PID 3872 wrote to memory of 4656 3872 csrss.exe 121 PID 3872 wrote to memory of 4656 3872 csrss.exe 121 PID 3872 wrote to memory of 4936 3872 csrss.exe 123 PID 3872 wrote to memory of 4936 3872 csrss.exe 123 PID 3872 wrote to memory of 4936 3872 csrss.exe 123 PID 3872 wrote to memory of 368 3872 csrss.exe 125 PID 3872 wrote to memory of 368 3872 csrss.exe 125 -
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\bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe"C:\Users\Admin\AppData\Local\Temp\bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:916 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1624
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C:\Users\Admin\AppData\Local\Temp\bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe"C:\Users\Admin\AppData\Local\Temp\bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.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:524 -
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:1620
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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:3652 -
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:4468
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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: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:388
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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:3872 -
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:1208
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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:2604
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:5068
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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:4656
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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:4936
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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:368
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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:4564
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 524 -s 7163⤵
- Program crash
PID:4804
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 524 -ip 5241⤵PID:3636
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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53bf22b7a5cf1e50064d89fd5145be6cf
SHA1f4b1dae5fc898455ca2994f042f617278bcce65f
SHA2569dd18ee78583d3da9f8f3d29ec561845eef355d933898c8306b951aa2c715580
SHA51293a15aa9c9bbd34b1dfebd44135a8c772140ae8ee23d1f6f0efd03fd5d7900f268831d23979c917ca25f7d40ee327e2446ef54236c86179fd286aaa0586e53db
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51a3ea682eaa2a3d8edadc5e568212ec6
SHA1e54f5ea3a26b37ce1e459e874990ee6d03b93c7d
SHA256e7529fc446192ddb41dcd28c086f648bd6c66f9a7ae80c14524644b73e488bbc
SHA512cc977340bcb8821c0f5cd4a6d837eef81bf1cd0f48af9356504b3251771d0a51c4e14cb6f6655f509986f2187cb4dd1b7adadfb73e5195eb7d6c451c12ecb189
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56f320247f117159c1854fa33a6bfccd1
SHA197c36282dce92bb2eeff34247e3d28dce8b0565f
SHA25630565d60452f9a0a0012659afac66dafa6a2a535c694a2885c202774fd114b8a
SHA5125573fcce58fb315fd351d808a5dc80eb3dd01280dc4fbf29f028c7cc936dd046413216e844bf7fb5b3674121dffbb220ed20b12ba40920ccc62d7e79d969f632
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD575e7629e7f700fccbc6e9921621a7484
SHA12b1269e06fa037d4e32614f08cd9221d0176bdd0
SHA2560a0246758fa6d96794ca2c9ff1485cf69a13329494e0284e6bf4f2a6aa074505
SHA51237c45e7a75260b87e8086adff12826e97bbdd29db7dc8f685684232824721eaa886d31a25ba603ad9375453d63794f3cb941d268d2626fdec0afbe4f6de71f99
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD558f276fccf3bde613a86ef0c916bfd5b
SHA1006893dc5f4748e9ab71af84a036cc41dbf09119
SHA256ceded8a1f1e8f33e465aed957f5c491472ffe577746d3fac50a78c043252e20b
SHA512e00704d739e27a18a2c023f8c4f0948e22ed7c738bd2fdf5324777a4afd0d0b2e27edb7b9e14a9f85508052dfde0017e47c84fe71efaa1bbbe620dc6bc20985f
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Filesize
4.1MB
MD51bacb5aadaabb6e4b152ff2ce5fbd65b
SHA12b3768b2b80a5ea2ce90de1026e68bbd4943dd33
SHA256bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729
SHA512df1d9660df44e66ba67bbfd12084e6bac3cc7c4f1bfcd95c4567dece92d964a2e737f2e11e1581117a14cc66491106c1dbd3ca9c9dbdbb074951d1c31da864f3