Analysis
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max time kernel
149s -
max time network
133s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-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 behavioral2/memory/3440-2-0x0000000004D10000-0x00000000055FB000-memory.dmp family_glupteba behavioral2/memory/3440-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3440-54-0x0000000004D10000-0x00000000055FB000-memory.dmp family_glupteba behavioral2/memory/3440-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3440-52-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/400-122-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/400-129-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3160-199-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3160-206-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3160-207-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3160-208-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3160-209-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3160-210-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3160-211-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3160-212-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3160-213-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3160-214-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3160-215-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3160-216-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2676 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 3160 csrss.exe 3148 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2551177587-3778486488-1329702901-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\S-1-5-21-2551177587-3778486488-1329702901-1000\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 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 -
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 1196 powershell.exe 2716 powershell.exe 1692 powershell.exe 3572 powershell.exe 5004 powershell.exe 2124 powershell.exe 2460 powershell.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 1920 3440 WerFault.exe 78 2680 400 WerFault.exe 86 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2944 schtasks.exe 1224 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.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\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA 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,-412 = "E. Africa Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.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" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.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,-292 = "Central European Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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,-1801 = "Line Islands Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs 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\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust 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,-392 = "Arab Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard 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\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1196 powershell.exe 1196 powershell.exe 3440 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 3440 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 2716 powershell.exe 2716 powershell.exe 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 1692 powershell.exe 1692 powershell.exe 3572 powershell.exe 3572 powershell.exe 5004 powershell.exe 5004 powershell.exe 2124 powershell.exe 2124 powershell.exe 2460 powershell.exe 2460 powershell.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3160 csrss.exe 3160 csrss.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3160 csrss.exe 3160 csrss.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe 3148 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 1196 powershell.exe Token: SeDebugPrivilege 3440 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Token: SeImpersonatePrivilege 3440 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe Token: SeDebugPrivilege 2716 powershell.exe Token: SeDebugPrivilege 1692 powershell.exe Token: SeDebugPrivilege 3572 powershell.exe Token: SeDebugPrivilege 5004 powershell.exe Token: SeDebugPrivilege 2124 powershell.exe Token: SeDebugPrivilege 2460 powershell.exe Token: SeSystemEnvironmentPrivilege 3160 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 3440 wrote to memory of 1196 3440 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 82 PID 3440 wrote to memory of 1196 3440 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 82 PID 3440 wrote to memory of 1196 3440 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 82 PID 400 wrote to memory of 2716 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 90 PID 400 wrote to memory of 2716 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 90 PID 400 wrote to memory of 2716 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 90 PID 400 wrote to memory of 2428 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 92 PID 400 wrote to memory of 2428 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 92 PID 2428 wrote to memory of 2676 2428 cmd.exe 94 PID 2428 wrote to memory of 2676 2428 cmd.exe 94 PID 400 wrote to memory of 1692 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 95 PID 400 wrote to memory of 1692 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 95 PID 400 wrote to memory of 1692 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 95 PID 400 wrote to memory of 3572 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 97 PID 400 wrote to memory of 3572 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 97 PID 400 wrote to memory of 3572 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 97 PID 400 wrote to memory of 3160 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 99 PID 400 wrote to memory of 3160 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 99 PID 400 wrote to memory of 3160 400 bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe 99 PID 3160 wrote to memory of 5004 3160 csrss.exe 102 PID 3160 wrote to memory of 5004 3160 csrss.exe 102 PID 3160 wrote to memory of 5004 3160 csrss.exe 102 PID 3160 wrote to memory of 2124 3160 csrss.exe 108 PID 3160 wrote to memory of 2124 3160 csrss.exe 108 PID 3160 wrote to memory of 2124 3160 csrss.exe 108 PID 3160 wrote to memory of 2460 3160 csrss.exe 110 PID 3160 wrote to memory of 2460 3160 csrss.exe 110 PID 3160 wrote to memory of 2460 3160 csrss.exe 110 PID 3160 wrote to memory of 3148 3160 csrss.exe 112 PID 3160 wrote to memory of 3148 3160 csrss.exe 112 -
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:3440 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1196
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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:400 -
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:2716
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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:2428 -
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:2676
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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:1692
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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:3572
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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:3160 -
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:5004
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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:2944
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:132
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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:2124
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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:2460
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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:3148
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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:1224
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 400 -s 7283⤵
- Program crash
PID:2680
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3440 -s 7882⤵
- Program crash
PID:1920
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3440 -ip 34401⤵PID:2328
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 400 -ip 4001⤵PID:1608
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52ac9dc33fdd84a0ff849c5ba9ac5338b
SHA1a62d1d0316b7f9970c5faa1cb71ee8284ea8fea4
SHA256f3fb5f25f2514532e8b80705b6ae407e4113cc7a01cd5bfd77ddf1085eb212d7
SHA5127743df2087d11c1ed13459abeadff444b2e86b43afcc3f25f548d61a658f9e4cb53a40700e803173fe2c6ea13008409e45e5a3c2843ea1b45dc96e12262d5826
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bb829dcccbaeba005a46edc32a30d9e3
SHA1821acd79d7107ca539748e7ecfeedc6a5ff21675
SHA2567615784e1e3e88f7924f4da24d13a5da284d088a8f5475ecb2dbb88f99e76dd3
SHA512527bca46dbf10739a82a5dd6908796b4c34b31cfc2d0579d564137cc4d305a9d4b9ee73fde5690fc1cd61b22aaea20d5e9c17576743d90124adc0dcdb0a1fe7f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5868d0b853c87fc27e1ac706293b70b17
SHA1078a5981718e82fe99884c23ff48905fcfbf85a1
SHA25629510a86422fa923ec860f0d318a0fd1af4d6f9ac70671d3367653fb5b7963c0
SHA512409be77fb4c62098b87af080c3aa5f5204822a76b5b12e3842f9b2d0713fe24da73d054d8141527d48a5298afb67f5ac24b2418d0af51ef83f6e79606c889715
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52ccfab499ee8cb62ec25bd8a8b51a0a7
SHA1881a4448e336c6d5d9a719ea314fe95b99c47fdc
SHA2569fb4c7dd90c17a87da5d6103cee7d8a535a81f263acbcfbb6ce2f848f50aba44
SHA512f0241781aaae7d36f1471ab14aec587f38dfd3bcef8602dd09333237371a248186c528c5a9f23503a80e384444ee46b9a4658078309e9eab8aa3730550adeddf
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a8268512fe45bb7eee15b059a78bb149
SHA1bc9c3b55658124bd38e44ff33f1281bdf157e784
SHA2568a9fc3a3670083a9cd1697c4cff6efd19a7bcc9c76b632377cb51a36d0d1ade0
SHA5120a01f6f94d1d4a10c69d532fff84abce38029c25597d7458a622ae8a6b79ba32a7039d956c1bf99ffed908657203eae29b696675086be6fdf38a6c6e1f4042a5
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Filesize
4.1MB
MD51bacb5aadaabb6e4b152ff2ce5fbd65b
SHA12b3768b2b80a5ea2ce90de1026e68bbd4943dd33
SHA256bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729
SHA512df1d9660df44e66ba67bbfd12084e6bac3cc7c4f1bfcd95c4567dece92d964a2e737f2e11e1581117a14cc66491106c1dbd3ca9c9dbdbb074951d1c31da864f3