Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 13:58
Static task
static1
Behavioral task
behavioral1
Sample
611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe
Resource
win10v2004-20240426-en
General
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Target
611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe
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Size
4.1MB
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MD5
fe15efaa69e82c58a1b87b13d6e63e74
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SHA1
9edf9ffe99b3714762f427126cc3dde316ed4dbf
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SHA256
611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490
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SHA512
4fc73bf39aac7dca98483238913663932bf3c3026d7e6d026d80570329d3afd6d1197beee95a1e042d20b2888a0a0ac0f79bc04125d06ff2ad654e636c8614c6
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SSDEEP
98304:kNaXJU8AJvaro5mDbVFqT6QhicqJuM7BOvJODhfBAiYJAl59WP:kqU8A9EamDpImBOY9f2NP
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/2528-2-0x00000000049C0000-0x00000000052AB000-memory.dmp family_glupteba behavioral2/memory/2528-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2528-89-0x00000000049C0000-0x00000000052AB000-memory.dmp family_glupteba behavioral2/memory/2528-87-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1492-125-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/2528-138-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1664-197-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1664-213-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1664-214-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1664-217-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1664-220-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1664-225-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1664-226-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1664-229-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1664-232-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1664-237-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1664-238-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1664-241-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1664-244-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2736 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 1664 csrss.exe 1452 injector.exe 4308 windefender.exe 2760 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002a9ad-206.dat upx behavioral2/memory/4308-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4308-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2760-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2760-221-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\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.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription 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.
Processes:
611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe -
Drops file in Windows directory 4 IoCs
Processes:
csrss.exe611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exedescription 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 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe File created C:\Windows\rss\csrss.exe 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid Process 1552 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 3308 powershell.exe 1776 powershell.exe 3488 powershell.exe 1144 powershell.exe 3940 powershell.exe 1604 powershell.exe 2424 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid Process 4344 schtasks.exe 2948 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exewindefender.exepowershell.exepowershell.exe611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1892 = "Russia TZ 3 Standard 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,-251 = "Dateline Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.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\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\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\@tzres.dll,-682 = "E. Australia Standard 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,-141 = "Canada Central Daylight Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-384 = "Namibia Daylight 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" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.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,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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\AutoDetect = "0" 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,-2142 = "Transbaikal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.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,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-691 = "Tasmania Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exepowershell.exe611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 3308 powershell.exe 3308 powershell.exe 2528 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 2528 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 1776 powershell.exe 1776 powershell.exe 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 3488 powershell.exe 3488 powershell.exe 1144 powershell.exe 1144 powershell.exe 3940 powershell.exe 3940 powershell.exe 1604 powershell.exe 1604 powershell.exe 2424 powershell.exe 2424 powershell.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1664 csrss.exe 1664 csrss.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1664 csrss.exe 1664 csrss.exe 1452 injector.exe 1452 injector.exe 1664 csrss.exe 1664 csrss.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe 1452 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 3308 powershell.exe Token: SeDebugPrivilege 2528 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Token: SeImpersonatePrivilege 2528 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe Token: SeDebugPrivilege 1776 powershell.exe Token: SeDebugPrivilege 3488 powershell.exe Token: SeDebugPrivilege 1144 powershell.exe Token: SeDebugPrivilege 3940 powershell.exe Token: SeDebugPrivilege 1604 powershell.exe Token: SeDebugPrivilege 2424 powershell.exe Token: SeSystemEnvironmentPrivilege 1664 csrss.exe Token: SeSecurityPrivilege 1552 sc.exe Token: SeSecurityPrivilege 1552 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 2528 wrote to memory of 3308 2528 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 78 PID 2528 wrote to memory of 3308 2528 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 78 PID 2528 wrote to memory of 3308 2528 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 78 PID 1492 wrote to memory of 1776 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 83 PID 1492 wrote to memory of 1776 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 83 PID 1492 wrote to memory of 1776 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 83 PID 1492 wrote to memory of 1324 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 85 PID 1492 wrote to memory of 1324 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 85 PID 1324 wrote to memory of 2736 1324 cmd.exe 87 PID 1324 wrote to memory of 2736 1324 cmd.exe 87 PID 1492 wrote to memory of 3488 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 88 PID 1492 wrote to memory of 3488 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 88 PID 1492 wrote to memory of 3488 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 88 PID 1492 wrote to memory of 1144 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 90 PID 1492 wrote to memory of 1144 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 90 PID 1492 wrote to memory of 1144 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 90 PID 1492 wrote to memory of 1664 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 92 PID 1492 wrote to memory of 1664 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 92 PID 1492 wrote to memory of 1664 1492 611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe 92 PID 1664 wrote to memory of 3940 1664 csrss.exe 93 PID 1664 wrote to memory of 3940 1664 csrss.exe 93 PID 1664 wrote to memory of 3940 1664 csrss.exe 93 PID 1664 wrote to memory of 1604 1664 csrss.exe 99 PID 1664 wrote to memory of 1604 1664 csrss.exe 99 PID 1664 wrote to memory of 1604 1664 csrss.exe 99 PID 1664 wrote to memory of 2424 1664 csrss.exe 101 PID 1664 wrote to memory of 2424 1664 csrss.exe 101 PID 1664 wrote to memory of 2424 1664 csrss.exe 101 PID 1664 wrote to memory of 1452 1664 csrss.exe 103 PID 1664 wrote to memory of 1452 1664 csrss.exe 103 PID 4308 wrote to memory of 2112 4308 windefender.exe 109 PID 4308 wrote to memory of 2112 4308 windefender.exe 109 PID 4308 wrote to memory of 2112 4308 windefender.exe 109 PID 2112 wrote to memory of 1552 2112 cmd.exe 110 PID 2112 wrote to memory of 1552 2112 cmd.exe 110 PID 2112 wrote to memory of 1552 2112 cmd.exe 110 -
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\611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe"C:\Users\Admin\AppData\Local\Temp\611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2528 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3308
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C:\Users\Admin\AppData\Local\Temp\611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.exe"C:\Users\Admin\AppData\Local\Temp\611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490.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:1492 -
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:1776
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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:1324 -
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:2736
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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:3488
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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:1144
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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:1664 -
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:3940
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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:2948
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1888
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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:1604
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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:2424
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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:1452
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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:4344
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4308 -
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:2112 -
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:1552
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2760
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
MD5ea4775b0a2d1c930ef2dfe61abe032ae
SHA1125e0f62e59f09f424302883e896b1514ccf4fb6
SHA256c9f00543f2ce61e066a446acb334a54300a2fe25477fd0679894d9d935e90208
SHA512a2b172f3c00413e3cd41a02472b2f852aefcd07fef1771c7bc615539a1d3f1406c8aaa5629ec5d3295ba38ba2dc6abd5544db9505a4f52c05fea50f4334fa5a9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ecd0d6943381096bacd77c2ef029b521
SHA18f1530b26e660b83bb14f1361578a2f20fa524c9
SHA256662d47ea8e8eb477defec86b5fada20ce3a6c34fdbdb9288c34c6537fb2e5b7b
SHA51298fe61e822abc2a175cab863288cd252b316e65caf39c70aec6cb849342144e7d0f110b81ab0a71262a8548a4c75f2fc457300cf0c8314f3380f2887f9ef1ba4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5df6b65dbcaf19dbf8a2467348aa86d08
SHA1363d504df6a51a1e0502e49a425da6cd82722fa4
SHA2568a3a779208ac5f1dc86349efd9b9a0f8adfa06800d82bc4c95bf4824ed736b77
SHA512ad6a36a1fddc5d5f15c02668d873ac1c3fc2db121b2bda221d56c5fe6a2c2395f9f2bd2d470f82ae027c17cbcccf33fbe5567920ecc1d558eed829ab93f68475
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57a4f972826b4366edbfcee21174d46da
SHA106353a7010253cd3aeba384e6c148c6e394530ea
SHA25625423d05f9f21696a7afe8c6c38098139a5a89fa43b1fda0ab01539e5ede7bdd
SHA5126145fc0212cc4f58c88080e202cccd856e57feb59ad8f9e8376e930709c3647b3b31182e4beebd1ca7509c3892f910dea802c39467693ad85f3f84ac67a34728
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c962a4da91127b52d13011aae9d55aaa
SHA1fd84330ea3b879b05101cefb3ed3d15b9d2bddb7
SHA256356a170d138ec208513c9a9619df6bcb6fb987a54618a30950a566999e48699c
SHA512581706a45248de51dd39d00f13da7f458b633b30ebe9d55866fe6c0e96c39ee3bd64f392ce1a2d734c93ae0ffe99b6d1f3f6a53d19547e757f54d50bb22a369a
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Filesize
4.1MB
MD5fe15efaa69e82c58a1b87b13d6e63e74
SHA19edf9ffe99b3714762f427126cc3dde316ed4dbf
SHA256611b530f795f70fcc99928eee9caa0b38501c1f0742f77cf6c7aedc250375490
SHA5124fc73bf39aac7dca98483238913663932bf3c3026d7e6d026d80570329d3afd6d1197beee95a1e042d20b2888a0a0ac0f79bc04125d06ff2ad654e636c8614c6
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec