Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 09:16
Static task
static1
Behavioral task
behavioral1
Sample
927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe
Resource
win10v2004-20240508-en
General
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Target
927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe
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Size
4.1MB
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MD5
dc50ff2d232e4edfb9016943fcd683c2
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SHA1
f193e3bcf59c3c5113e626f18b651e2f6623e59a
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SHA256
927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af
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SHA512
682d95622264f694d1a62873264d882307da1559ea9ae97ebb38dafb61a8d7670c0031a49698fb939a88c0af3f2264bd240f6510ada0c81bded8b118ffc1d6d1
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SSDEEP
98304:QvCQaDBnSWO/B+XxjapSyZlG1PnsYHdaWgIg92gsnC3bzMZh6P15:QvC3DFSWO/BjYGk1PnXHoWWZ1za6N5
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/4452-2-0x0000000004510000-0x0000000004DFB000-memory.dmp family_glupteba behavioral2/memory/4452-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4452-54-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4452-51-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4452-53-0x0000000004510000-0x0000000004DFB000-memory.dmp family_glupteba behavioral2/memory/3780-111-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/3780-126-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/3044-204-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/3044-213-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/3044-214-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/3044-217-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/3044-219-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/3044-221-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/3044-222-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/3044-225-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/3044-227-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/3044-229-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/3044-230-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/3044-233-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 4872 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 3044 csrss.exe 4228 injector.exe 4492 windefender.exe 2448 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x001a00000002ab42-207.dat upx behavioral2/memory/4492-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2448-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4492-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2448-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2448-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2448-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\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 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 -
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:
927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe -
Drops file in Windows directory 4 IoCs
Processes:
927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe File created C:\Windows\rss\csrss.exe 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.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.
Processes:
sc.exepid Process 3820 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4888 powershell.exe 1252 powershell.exe 2952 powershell.exe 3824 powershell.exe 2092 powershell.exe 2276 powershell.exe 2772 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 3636 schtasks.exe 5032 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exewindefender.exe927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-501 = "Nepal Daylight Time" windefender.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,-2491 = "Aus Central W. Daylight Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 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,-121 = "SA Pacific Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.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\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1662 = "Bahia Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-691 = "Tasmania Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-911 = "Mauritius Daylight 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" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-932 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exepowershell.exe927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 2276 powershell.exe 2276 powershell.exe 4452 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 4452 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 2772 powershell.exe 2772 powershell.exe 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 4888 powershell.exe 4888 powershell.exe 1252 powershell.exe 1252 powershell.exe 2952 powershell.exe 2952 powershell.exe 3824 powershell.exe 3824 powershell.exe 2092 powershell.exe 2092 powershell.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 3044 csrss.exe 3044 csrss.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 3044 csrss.exe 3044 csrss.exe 4228 injector.exe 4228 injector.exe 3044 csrss.exe 3044 csrss.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe 4228 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 2276 powershell.exe Token: SeDebugPrivilege 4452 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Token: SeImpersonatePrivilege 4452 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe Token: SeDebugPrivilege 2772 powershell.exe Token: SeDebugPrivilege 4888 powershell.exe Token: SeDebugPrivilege 1252 powershell.exe Token: SeDebugPrivilege 2952 powershell.exe Token: SeDebugPrivilege 3824 powershell.exe Token: SeDebugPrivilege 2092 powershell.exe Token: SeSystemEnvironmentPrivilege 3044 csrss.exe Token: SeSecurityPrivilege 3820 sc.exe Token: SeSecurityPrivilege 3820 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 4452 wrote to memory of 2276 4452 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 81 PID 4452 wrote to memory of 2276 4452 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 81 PID 4452 wrote to memory of 2276 4452 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 81 PID 3780 wrote to memory of 2772 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 86 PID 3780 wrote to memory of 2772 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 86 PID 3780 wrote to memory of 2772 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 86 PID 3780 wrote to memory of 2212 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 88 PID 3780 wrote to memory of 2212 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 88 PID 2212 wrote to memory of 4872 2212 cmd.exe 90 PID 2212 wrote to memory of 4872 2212 cmd.exe 90 PID 3780 wrote to memory of 4888 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 91 PID 3780 wrote to memory of 4888 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 91 PID 3780 wrote to memory of 4888 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 91 PID 3780 wrote to memory of 1252 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 93 PID 3780 wrote to memory of 1252 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 93 PID 3780 wrote to memory of 1252 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 93 PID 3780 wrote to memory of 3044 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 95 PID 3780 wrote to memory of 3044 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 95 PID 3780 wrote to memory of 3044 3780 927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe 95 PID 3044 wrote to memory of 2952 3044 csrss.exe 96 PID 3044 wrote to memory of 2952 3044 csrss.exe 96 PID 3044 wrote to memory of 2952 3044 csrss.exe 96 PID 3044 wrote to memory of 3824 3044 csrss.exe 102 PID 3044 wrote to memory of 3824 3044 csrss.exe 102 PID 3044 wrote to memory of 3824 3044 csrss.exe 102 PID 3044 wrote to memory of 2092 3044 csrss.exe 104 PID 3044 wrote to memory of 2092 3044 csrss.exe 104 PID 3044 wrote to memory of 2092 3044 csrss.exe 104 PID 3044 wrote to memory of 4228 3044 csrss.exe 106 PID 3044 wrote to memory of 4228 3044 csrss.exe 106 PID 4492 wrote to memory of 1472 4492 windefender.exe 112 PID 4492 wrote to memory of 1472 4492 windefender.exe 112 PID 4492 wrote to memory of 1472 4492 windefender.exe 112 PID 1472 wrote to memory of 3820 1472 cmd.exe 113 PID 1472 wrote to memory of 3820 1472 cmd.exe 113 PID 1472 wrote to memory of 3820 1472 cmd.exe 113 -
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\927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe"C:\Users\Admin\AppData\Local\Temp\927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4452 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2276
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C:\Users\Admin\AppData\Local\Temp\927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.exe"C:\Users\Admin\AppData\Local\Temp\927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af.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:3780 -
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:2772
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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:2212 -
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:4872
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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:4888
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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:1252
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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:3044 -
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:2952
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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:3636
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2872
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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:3824
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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:2092
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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:4228
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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:5032
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4492 -
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:1472 -
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:3820
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2448
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
MD5be2a9127f6fa74e300fd218d2b3dd9ba
SHA1a46f0d2a5c37e2d52bb38354fda27d2680259702
SHA256a73975be655f03354428164ccdba2d353f4bd2382abef0b0d609820543009720
SHA5123db670cdfc31ffb12536499fdaef9eb39cf9a17d3b82160227546a91a1726bba5eb533ae7081acf67dbf405fd53fd33d46ea533eea6dcadafe2af3eecf3070af
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59c3a468c7dd644194ff064e6c9b9d4d4
SHA1c0cccba3048bcfb5891bce3823d4d35ac4ba5970
SHA256445f3e1ca2e7edf1784e08c3548ba125db36168ff47561723d4add505fac6a37
SHA512b5aaa2d38d54375641aa8571e5466529e43eeafe12832e6a110933dbc3eae23d4915268f7156d6681a037c0f716614773671551b469e0551e048e85a80184b14
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ca4536818d792b1305400aabd23fa5fc
SHA10794e62c0a598b9999cb5ce67fb6b138ff5cbaac
SHA2568c60ec04365974bd3c3cae985f479b79ca27079adfe65316ee2c441682ea0c0f
SHA512ac786949f8e3abf3298711a2ef6553327aaa491fa6f2070ce3444566664d5822bb7f61736fdeb6674588fa1d9fab91a24429f81c76f1fcf54bf42d6f1020d96f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e1ceb80fababca2606b8a7c4ad870d7d
SHA155ea0714a64a2c2129891592ee79da696dcabda4
SHA2562478a3fdb909c640227879feb56991159c096a0338101db1be7a7c48ee8dd820
SHA5123efa10c917b218e2f878b4bb377c5cb10ff3afd591895b8369e7a33a646d030d8c98e294b144c949fe4fdd84605c5aa85d69172f6753920e4231b4b67b51d80a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d44c5d3082c0275c8c1289de28d382bd
SHA11c960e1876304041623b6aa7057147c6c63c0e28
SHA256c27d790f79d13a30653cf853973c30bcbe8172b84c7444261c7b4de1ebc0cf45
SHA512df6244fbb10befd5bc602e8e0f0adad77b3c5ae5e958ec59e0300261202d330d794809c928184ffdbccb3516014b08fa43ad1018829e4ee46977dd84f3cd4454
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Filesize
4.1MB
MD5dc50ff2d232e4edfb9016943fcd683c2
SHA1f193e3bcf59c3c5113e626f18b651e2f6623e59a
SHA256927c2dcf05cdb8eda3993b45975520790e17dca895ca3e43f0730bca958362af
SHA512682d95622264f694d1a62873264d882307da1559ea9ae97ebb38dafb61a8d7670c0031a49698fb939a88c0af3f2264bd240f6510ada0c81bded8b118ffc1d6d1
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec