Analysis
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max time kernel
149s -
max time network
143s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
15-05-2024 15:17
Static task
static1
Behavioral task
behavioral1
Sample
ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe
Resource
win10v2004-20240508-en
General
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Target
ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe
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Size
4.1MB
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MD5
c2f217ca1bb8cf75c9cec7a762e23906
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SHA1
4cafb47746fd112d36e52977af6ffcd2a38e4a6e
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SHA256
ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d
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SHA512
2bcef9d3f2318167a1e56424395ae6777a4d13fe3bcd36edb7352bec9a357388f8529c8460b618df08617ffe9255b92f73fbcef82830bdfde638c191ad12f25d
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SSDEEP
98304:KoJ/zNpfNOjfVFQ/nccBDV6mYf0gdQtHi3wo8k3cC1G76/iK:KgrNPOj9FQvccBDkmyddxD3VFiK
Malware Config
Signatures
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Glupteba payload 16 IoCs
resource yara_rule behavioral2/memory/4844-2-0x0000000004D40000-0x000000000562B000-memory.dmp family_glupteba behavioral2/memory/4844-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4844-52-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4844-63-0x0000000004D40000-0x000000000562B000-memory.dmp family_glupteba behavioral2/memory/4844-127-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2920-126-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2556-198-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2556-207-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2556-219-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2556-223-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2556-227-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2556-231-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2556-234-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2556-243-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2556-247-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2556-251-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2572 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2556 csrss.exe 3808 injector.exe 3940 windefender.exe 3272 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9dd-210.dat upx behavioral2/memory/3940-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3272-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3940-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3272-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3272-228-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3272-240-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\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\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe File created C:\Windows\rss\csrss.exe ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4852 sc.exe -
pid Process 4196 powershell.exe 2788 powershell.exe 3200 powershell.exe 2660 powershell.exe 2448 powershell.exe 2332 powershell.exe 1792 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2572 schtasks.exe 1484 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight 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,-2872 = "Magallanes Standard Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-172 = "Central Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA 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,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.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\@tzres.dll,-281 = "Central Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\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\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 Standard 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" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.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\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4196 powershell.exe 4196 powershell.exe 4844 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 4844 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 2788 powershell.exe 2788 powershell.exe 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 3200 powershell.exe 3200 powershell.exe 2660 powershell.exe 2660 powershell.exe 2448 powershell.exe 2448 powershell.exe 2332 powershell.exe 2332 powershell.exe 1792 powershell.exe 1792 powershell.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 2556 csrss.exe 2556 csrss.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 2556 csrss.exe 2556 csrss.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 2556 csrss.exe 2556 csrss.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4196 powershell.exe Token: SeDebugPrivilege 4844 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Token: SeImpersonatePrivilege 4844 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe Token: SeDebugPrivilege 2788 powershell.exe Token: SeDebugPrivilege 3200 powershell.exe Token: SeDebugPrivilege 2660 powershell.exe Token: SeDebugPrivilege 2448 powershell.exe Token: SeDebugPrivilege 2332 powershell.exe Token: SeDebugPrivilege 1792 powershell.exe Token: SeSystemEnvironmentPrivilege 2556 csrss.exe Token: SeSecurityPrivilege 4852 sc.exe Token: SeSecurityPrivilege 4852 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4844 wrote to memory of 4196 4844 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 83 PID 4844 wrote to memory of 4196 4844 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 83 PID 4844 wrote to memory of 4196 4844 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 83 PID 2920 wrote to memory of 2788 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 88 PID 2920 wrote to memory of 2788 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 88 PID 2920 wrote to memory of 2788 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 88 PID 2920 wrote to memory of 916 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 90 PID 2920 wrote to memory of 916 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 90 PID 916 wrote to memory of 2572 916 cmd.exe 92 PID 916 wrote to memory of 2572 916 cmd.exe 92 PID 2920 wrote to memory of 3200 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 93 PID 2920 wrote to memory of 3200 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 93 PID 2920 wrote to memory of 3200 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 93 PID 2920 wrote to memory of 2660 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 95 PID 2920 wrote to memory of 2660 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 95 PID 2920 wrote to memory of 2660 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 95 PID 2920 wrote to memory of 2556 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 97 PID 2920 wrote to memory of 2556 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 97 PID 2920 wrote to memory of 2556 2920 ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe 97 PID 2556 wrote to memory of 2448 2556 csrss.exe 98 PID 2556 wrote to memory of 2448 2556 csrss.exe 98 PID 2556 wrote to memory of 2448 2556 csrss.exe 98 PID 2556 wrote to memory of 2332 2556 csrss.exe 102 PID 2556 wrote to memory of 2332 2556 csrss.exe 102 PID 2556 wrote to memory of 2332 2556 csrss.exe 102 PID 2556 wrote to memory of 1792 2556 csrss.exe 106 PID 2556 wrote to memory of 1792 2556 csrss.exe 106 PID 2556 wrote to memory of 1792 2556 csrss.exe 106 PID 2556 wrote to memory of 3808 2556 csrss.exe 108 PID 2556 wrote to memory of 3808 2556 csrss.exe 108 PID 3940 wrote to memory of 3236 3940 windefender.exe 114 PID 3940 wrote to memory of 3236 3940 windefender.exe 114 PID 3940 wrote to memory of 3236 3940 windefender.exe 114 PID 3236 wrote to memory of 4852 3236 cmd.exe 115 PID 3236 wrote to memory of 4852 3236 cmd.exe 115 PID 3236 wrote to memory of 4852 3236 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\ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe"C:\Users\Admin\AppData\Local\Temp\ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4844 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4196
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C:\Users\Admin\AppData\Local\Temp\ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.exe"C:\Users\Admin\AppData\Local\Temp\ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d.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:2920 -
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:2788
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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:916 -
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:2572
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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:3200
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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:2660
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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:2556 -
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:2448
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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:1484
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:868
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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:2332
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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:1792
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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:3808
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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:2572
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3940 -
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:3236 -
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:4852
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3272
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ae950c4f18cd0d43be7aec4b3d77b229
SHA1de269919cd532d25344b7b5a51ce51c1251c5ec9
SHA25668a9e60f8e7c07e3a9d2b39ebfd472211bd524efa2b0519f2b63e7104ad418de
SHA5128b4fc73e6a1d60a9ff053ffe08d7c3cbc96bec69777f9513e14df6092ac0322ee8afc00c8d20df29fb0a8bf4a42555b2b42eb8e4fd0d9d0d5b09d6fc9643ab05
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53536d892861426b09d918dc6974fed80
SHA121123d6785deefee7bd78b56b54884cbda8e8c19
SHA256ae9600067ccf8194033b136cdfe9c8c77d85001b55714f14c8af22a25bddf905
SHA512f8c38a07cd9ff77cd93c7337e1b61bdbb66ce7cd74abcff0fe27cfee2369581740de4052c3f595bf3caf3987e216d720d83ce01a046328299dd72807dfb7799d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59d1457f4878c5d1c9531f5e211abd513
SHA133bbbbd188258dbfedf9093a2f98b200e2abcb5e
SHA2567d18bc1e6117ba43f0e60a963af919885fa3e34f81b688cf40194f0c39b5a78e
SHA5126dbb5d350b476d928f37ae848b331e94465ac95b04d015d7769feaff04d81cf06439e64181816d6757fbe8ac6f919c0538de9d92d52c2bb3f18d9253f09a1d56
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD590235b8ef83f6d85613b1028dbc5eadf
SHA1d45384df41bb13a7ef362000b8fe285a2c534ad4
SHA256b3c8016ce1c8f185df2b48de56171c4e044f4b8f4d9daef56d9f483db8f30a42
SHA512e86748e9839e94d237e86a09ac38df81190f89653f9493af423542795f092cd895258d1d87dfb74795237f889449335cd21207e83efb1a8dfb79df68b672f85e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d6e6d2d4b15891776dc1b3964d534536
SHA1e5a0f6dc51c6eb892e58697311276ed603c86f5a
SHA2561b1c48ba0b7667013fc31ad0e6baeb7059402ed70c8be891ffdf471a543f269c
SHA51215efbc2da48de116a775592f39a7f6f88e1d967cffaa01be7533a4aa98755510f3da15222d642f5b58d92cfa811d8428493016b227692695782f63b04e056851
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Filesize
4.1MB
MD5c2f217ca1bb8cf75c9cec7a762e23906
SHA14cafb47746fd112d36e52977af6ffcd2a38e4a6e
SHA256ad1c6731d191f64dcb14df183247a5eee51af94dd6251f473a169c73ffa9ed4d
SHA5122bcef9d3f2318167a1e56424395ae6777a4d13fe3bcd36edb7352bec9a357388f8529c8460b618df08617ffe9255b92f73fbcef82830bdfde638c191ad12f25d
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec