Analysis
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max time kernel
149s -
max time network
133s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
12/05/2024, 07:40
Static task
static1
Behavioral task
behavioral1
Sample
8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe
Resource
win10v2004-20240508-en
General
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Target
8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe
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Size
4.1MB
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MD5
31a51abf322be4a0d212d062389e5ab1
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SHA1
3a57a0bb5f05bed54e1cf5c24e0b4c4bbf7a8c46
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SHA256
8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d
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SHA512
512c62669e48af9c28fc3afc78c6afbb2e100323a6b066bc22287a8e93d71cc551b441ca121b5792b9f8932b0439d56206a8440af8534ed58795dec05216deae
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SSDEEP
98304:i4b8PU//ZeiKcp55P+7i69cD/bvsO79m20dOthVs:1bsAg5a+7i6g/hXcOtc
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/484-2-0x0000000002E40000-0x000000000372B000-memory.dmp family_glupteba behavioral2/memory/484-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/484-52-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/484-55-0x0000000002E40000-0x000000000372B000-memory.dmp family_glupteba behavioral2/memory/32-120-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/32-125-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2668-201-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2668-205-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2668-213-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2668-217-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2668-220-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2668-223-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2668-225-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2668-229-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2668-232-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2668-235-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2668-237-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2668-241-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 596 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2668 csrss.exe 1344 injector.exe 3932 windefender.exe 3444 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9d3-204.dat upx behavioral2/memory/3932-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3444-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3932-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3444-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3444-221-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe File created C:\Windows\rss\csrss.exe 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.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 2664 sc.exe -
pid Process 4668 powershell.exe 2900 powershell.exe 5096 powershell.exe 4780 powershell.exe 3716 powershell.exe 3348 powershell.exe 4876 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 976 schtasks.exe 3148 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\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time" windefender.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\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3141 = "South Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1892 = "Russia TZ 3 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.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,-121 = "SA Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates 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,-831 = "SA Eastern Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-632 = "Tokyo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-82 = "Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.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\TrustedPeople\CRLs 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,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4876 powershell.exe 4876 powershell.exe 484 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 484 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 4668 powershell.exe 4668 powershell.exe 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 2900 powershell.exe 2900 powershell.exe 5096 powershell.exe 5096 powershell.exe 4780 powershell.exe 4780 powershell.exe 3716 powershell.exe 3716 powershell.exe 3348 powershell.exe 3348 powershell.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 2668 csrss.exe 2668 csrss.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 2668 csrss.exe 2668 csrss.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 2668 csrss.exe 2668 csrss.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe 1344 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4876 powershell.exe Token: SeDebugPrivilege 484 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe Token: SeImpersonatePrivilege 484 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe Token: SeDebugPrivilege 4668 powershell.exe Token: SeDebugPrivilege 2900 powershell.exe Token: SeDebugPrivilege 5096 powershell.exe Token: SeDebugPrivilege 4780 powershell.exe Token: SeDebugPrivilege 3716 powershell.exe Token: SeDebugPrivilege 3348 powershell.exe Token: SeSystemEnvironmentPrivilege 2668 csrss.exe Token: SeSecurityPrivilege 2664 sc.exe Token: SeSecurityPrivilege 2664 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 484 wrote to memory of 4876 484 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 82 PID 484 wrote to memory of 4876 484 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 82 PID 484 wrote to memory of 4876 484 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 82 PID 32 wrote to memory of 4668 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 87 PID 32 wrote to memory of 4668 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 87 PID 32 wrote to memory of 4668 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 87 PID 32 wrote to memory of 2976 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 89 PID 32 wrote to memory of 2976 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 89 PID 2976 wrote to memory of 596 2976 cmd.exe 91 PID 2976 wrote to memory of 596 2976 cmd.exe 91 PID 32 wrote to memory of 2900 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 92 PID 32 wrote to memory of 2900 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 92 PID 32 wrote to memory of 2900 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 92 PID 32 wrote to memory of 5096 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 94 PID 32 wrote to memory of 5096 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 94 PID 32 wrote to memory of 5096 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 94 PID 32 wrote to memory of 2668 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 96 PID 32 wrote to memory of 2668 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 96 PID 32 wrote to memory of 2668 32 8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe 96 PID 2668 wrote to memory of 4780 2668 csrss.exe 97 PID 2668 wrote to memory of 4780 2668 csrss.exe 97 PID 2668 wrote to memory of 4780 2668 csrss.exe 97 PID 2668 wrote to memory of 3716 2668 csrss.exe 103 PID 2668 wrote to memory of 3716 2668 csrss.exe 103 PID 2668 wrote to memory of 3716 2668 csrss.exe 103 PID 2668 wrote to memory of 3348 2668 csrss.exe 105 PID 2668 wrote to memory of 3348 2668 csrss.exe 105 PID 2668 wrote to memory of 3348 2668 csrss.exe 105 PID 2668 wrote to memory of 1344 2668 csrss.exe 107 PID 2668 wrote to memory of 1344 2668 csrss.exe 107 PID 3932 wrote to memory of 5008 3932 windefender.exe 113 PID 3932 wrote to memory of 5008 3932 windefender.exe 113 PID 3932 wrote to memory of 5008 3932 windefender.exe 113 PID 5008 wrote to memory of 2664 5008 cmd.exe 114 PID 5008 wrote to memory of 2664 5008 cmd.exe 114 PID 5008 wrote to memory of 2664 5008 cmd.exe 114 -
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\8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe"C:\Users\Admin\AppData\Local\Temp\8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:484 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4876
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C:\Users\Admin\AppData\Local\Temp\8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.exe"C:\Users\Admin\AppData\Local\Temp\8d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d.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:32 -
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:4668
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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:2976 -
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:596
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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:2900
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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:5096
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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:2668 -
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:4780
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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:976
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1120
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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:3716
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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:3348
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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:1344
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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:3148
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3932 -
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:5008 -
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:2664
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3444
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
MD52300bf8f49dbf2788fd96a1d0f4a06b1
SHA11df0acc017b437ebe99efd41262578793d01e40a
SHA25681324bb19e82b5b7cc6c24264461c23b6a0453d4418e0969a0adf649570ef02f
SHA512617b815c59653b7e47279c5a9d0b10487d8d241d5fe7062d51001286f7c6299defe52751e90fc745cc6f2fdef9f4bf67b4188d335e3df9bf8aef476e53336ad7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53085c6285e1a910cad3d3b0fed2cd6d8
SHA10cf7ae5f4d4d83be017fa8cb511a56a55ebc373e
SHA256634a00686be185d1673923f4ac912c13dc49a78b77dde2f1ea3e7b26239e95f3
SHA512b8af0f89beb98e34a03c046fcbfa88a3a85eb44faac2de794410c1102c32b0f030c8ae3181515572adbe417c217f05da9cc18cc1fa174cbb2e2bf89f18c25095
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5775ca857f2797991b4a75176f6baf0e8
SHA11c812dd7443f8fd4bb460fefbfd1acbb78e14c6a
SHA25696ced6646be77e6cfd9bd944790a94b0bd9e6ad11d6f18ffc9e7d65f2abd8495
SHA5126cfba9507803b00e290714ddd41ee4fbfbae95d73866420827ec87fcfc06e04c5863b25ff88c304dbbf33c1efa59607e54f88b63f0e20c4568bb67daeb00a16f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b6822f7fc9013f87f7cc5943bf359d81
SHA10a27115e6ea2ce46ed3515ade9d9bbf46c4aba7a
SHA25608fac6d5ff3a74efbf74e9f9eaf5677f2c30532d0278f9e3286eec12e9eb15d2
SHA512b6e199171f844f1409d1329c39dcaed803bed1cf9b116a092f4673a737bee78e97ef2f49998984f12c19032984a3685a276dfd9e4c83d53152f085e458db80ab
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5701fbd11c72ca2d7ea5b59bc9477d1a1
SHA15dc7d906d2f9ac979bddaece9c3ddc41a79b87fd
SHA2565cca35963b98e0a1a7e58e1b7851482a73b7ae1d440f6d446b10f1534b357b98
SHA512336d5d145bea3d408a10a9da7226ee510894752da56b9c2f3645e3156a01f2c5a13a79b0ac383cad59d9cefb7e541eabff5b4f50f3e3b5d98470982e5d8cb84a
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Filesize
4.1MB
MD531a51abf322be4a0d212d062389e5ab1
SHA13a57a0bb5f05bed54e1cf5c24e0b4c4bbf7a8c46
SHA2568d0e447851b44b913959ed055e58a9ec3195730bb5c5d68ea085fa10f03e8d1d
SHA512512c62669e48af9c28fc3afc78c6afbb2e100323a6b066bc22287a8e93d71cc551b441ca121b5792b9f8932b0439d56206a8440af8534ed58795dec05216deae
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec