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Analysis
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max time kernel
150s -
max time network
155s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
09/04/2024, 02:34
Static task
static1
Behavioral task
behavioral1
Sample
febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe
Resource
win10v2004-20240226-en
General
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Target
febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe
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Size
4.2MB
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MD5
854ce7d690d1d8637c38127a10cce9fc
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SHA1
5ea37bfa0d74a4d8edaaf037221112820440129a
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SHA256
febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5
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SHA512
8997d7d5abfbcda6f4ad1f80b26d723b1be65285ac1feaec0c330c2b626bfbace0e30a0ff40b39e72e9118fdf7efd19cbcb95cfc4325eb3e192b91498dff4695
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SSDEEP
98304:MBo7TEOS9z37c565/OF7GVbQ0Ggv3fjQl4owZWsM:VSa5f7GFQ+3EqoWG
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/1216-2-0x0000000005270000-0x0000000005B5B000-memory.dmp family_glupteba behavioral2/memory/1216-3-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/1216-51-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/1216-53-0x0000000005270000-0x0000000005B5B000-memory.dmp family_glupteba behavioral2/memory/1668-54-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/1668-127-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/1668-147-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4596-245-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4596-254-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4596-256-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4596-258-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4596-260-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4596-262-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4596-264-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4596-266-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4596-268-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4596-270-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4596-272-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4596-274-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4596-276-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 692 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4596 csrss.exe 2080 injector.exe 4992 windefender.exe 708 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a795-248.dat upx behavioral2/memory/4992-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/708-255-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/708-259-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe 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 -
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 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 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 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4940 sc.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 3024 1216 WerFault.exe 76 4980 1668 WerFault.exe 82 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3284 schtasks.exe 3892 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-661 = "Cen. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2751 = "Tomsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\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\22\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4972 powershell.exe 4972 powershell.exe 1216 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 1216 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 3936 powershell.exe 3936 powershell.exe 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 1644 powershell.exe 1644 powershell.exe 676 powershell.exe 676 powershell.exe 3656 powershell.exe 3656 powershell.exe 4072 powershell.exe 4072 powershell.exe 2808 powershell.exe 2808 powershell.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 4596 csrss.exe 4596 csrss.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 4596 csrss.exe 4596 csrss.exe 2080 injector.exe 2080 injector.exe 4596 csrss.exe 4596 csrss.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4972 powershell.exe Token: SeDebugPrivilege 1216 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Token: SeImpersonatePrivilege 1216 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe Token: SeDebugPrivilege 3936 powershell.exe Token: SeDebugPrivilege 1644 powershell.exe Token: SeDebugPrivilege 676 powershell.exe Token: SeDebugPrivilege 3656 powershell.exe Token: SeDebugPrivilege 4072 powershell.exe Token: SeDebugPrivilege 2808 powershell.exe Token: SeSystemEnvironmentPrivilege 4596 csrss.exe Token: SeSecurityPrivilege 4940 sc.exe Token: SeSecurityPrivilege 4940 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1216 wrote to memory of 4972 1216 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 78 PID 1216 wrote to memory of 4972 1216 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 78 PID 1216 wrote to memory of 4972 1216 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 78 PID 1668 wrote to memory of 3936 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 86 PID 1668 wrote to memory of 3936 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 86 PID 1668 wrote to memory of 3936 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 86 PID 1668 wrote to memory of 708 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 116 PID 1668 wrote to memory of 708 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 116 PID 708 wrote to memory of 692 708 cmd.exe 90 PID 708 wrote to memory of 692 708 cmd.exe 90 PID 1668 wrote to memory of 1644 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 91 PID 1668 wrote to memory of 1644 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 91 PID 1668 wrote to memory of 1644 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 91 PID 1668 wrote to memory of 676 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 93 PID 1668 wrote to memory of 676 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 93 PID 1668 wrote to memory of 676 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 93 PID 1668 wrote to memory of 4596 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 95 PID 1668 wrote to memory of 4596 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 95 PID 1668 wrote to memory of 4596 1668 febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe 95 PID 4596 wrote to memory of 3656 4596 csrss.exe 98 PID 4596 wrote to memory of 3656 4596 csrss.exe 98 PID 4596 wrote to memory of 3656 4596 csrss.exe 98 PID 4596 wrote to memory of 4072 4596 csrss.exe 104 PID 4596 wrote to memory of 4072 4596 csrss.exe 104 PID 4596 wrote to memory of 4072 4596 csrss.exe 104 PID 4596 wrote to memory of 2808 4596 csrss.exe 106 PID 4596 wrote to memory of 2808 4596 csrss.exe 106 PID 4596 wrote to memory of 2808 4596 csrss.exe 106 PID 4596 wrote to memory of 2080 4596 csrss.exe 108 PID 4596 wrote to memory of 2080 4596 csrss.exe 108 PID 4992 wrote to memory of 896 4992 windefender.exe 114 PID 4992 wrote to memory of 896 4992 windefender.exe 114 PID 4992 wrote to memory of 896 4992 windefender.exe 114 PID 896 wrote to memory of 4940 896 cmd.exe 115 PID 896 wrote to memory of 4940 896 cmd.exe 115 PID 896 wrote to memory of 4940 896 cmd.exe 115 -
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\febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe"C:\Users\Admin\AppData\Local\Temp\febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1216 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4972
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C:\Users\Admin\AppData\Local\Temp\febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.exe"C:\Users\Admin\AppData\Local\Temp\febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5.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:1668 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3936
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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:708 -
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:692
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1644
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:676
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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:4596 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3656
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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:3284
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4656
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4072
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2808
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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:2080
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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:3892
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4992 -
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:896 -
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:4940
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1668 -s 9043⤵
- Program crash
PID:4980
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1216 -s 9202⤵
- Program crash
PID:3024
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1216 -ip 12161⤵PID:4312
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1668 -ip 16681⤵PID:4336
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:708
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
MD5e2631d1dae32681a7e9f552406c6a210
SHA173a282ad05a63090d4376ede90c412db3c3ee2df
SHA25684de4c511950663d1ceb8909726ed4874e01f6ad7f2ff97ad51b786aa08f8c46
SHA5126688f311db4b23488762785418fb2a4c7671b6f9f5b2c58bf9b9546455bf1d0aed75f6149ec7a7ff88ad6b0199f4b278e1ed1a593ec2590bd4fe1ea08ac97223
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD538da9bdaa961da1a9f82fe512e75d89f
SHA168eefed2c7f02232356bd41e2d8a05c6b4134944
SHA25690654b45891ae5b0b87409177d1ffe36724d69f593c31a4773f452b7a362349b
SHA5126db2dce41c6d89e632df35c27c423751f685df65a49d6e6cd98ff3c24a2b5b19bfa5939b5e9a6aac23bcd4e80494a0889bc93cd13d8e7db5973ffdb1b7f44095
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD528dc4acbbff39884fd791f4350b3f7d8
SHA1bf7edef3b73d25693700a9c3b3677ef050089c5d
SHA256cafcd7ec9747883bda35d469a77608786921f57972bec23908c301c25754c687
SHA5120c24f25e529bc1605810a9271c965e61c717c3a45be79695bc8a0283a91de6ba6a81ca94d301bd49995ba581d8bb0c61c347bdc969c0bb5ee35092089111f894
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD556fa848b41e162333242232201194faa
SHA15db206ff96cadd393e1616bdb976dfe95e8b5ea7
SHA256625cd5b6b1f0e7244784f0a62bcedb67055cce7d200e2370ed2112aa709ff9b2
SHA512d86cba107924b90390c658de86eef5bcb4d40251a4e796e34cc5bcb610c20f0ba3661a171f3198c4fbc4807502f824c640af020fff876ae76c7b2a2c0503252d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52987e3921415fbd0cb027c907caf248e
SHA1846a82fb7f8e893740dc0320c7ef4aa500d53855
SHA2566d79866a72d29e9d6cc2a21e10a763713c7b371c83f807aed98d69b55f5836dd
SHA512483652cb3fa6316c636684bee67245d5f0eee275297769a7f56c0336d9c3b8766a233bfdbcd518bab1c9a44d079b0f4ba02b5abff3ee1000c9ee617724516f1a
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Filesize
4.2MB
MD5854ce7d690d1d8637c38127a10cce9fc
SHA15ea37bfa0d74a4d8edaaf037221112820440129a
SHA256febf09854a2da260e26ef0d3cb71a090bbc56d4eaf57b8a902d10ba766eb7cd5
SHA5128997d7d5abfbcda6f4ad1f80b26d723b1be65285ac1feaec0c330c2b626bfbace0e30a0ff40b39e72e9118fdf7efd19cbcb95cfc4325eb3e192b91498dff4695
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec