Analysis
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max time kernel
149s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
04/05/2024, 05:43
Static task
static1
Behavioral task
behavioral1
Sample
907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe
Resource
win10v2004-20240226-en
General
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Target
907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe
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Size
4.2MB
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MD5
02eab94bb254d99ae65daf798e883cbd
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SHA1
c70231a43465a6e632bfb47382e8234da0a87b89
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SHA256
907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8
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SHA512
758eb37bf635aba3dae970da3a71c217713f5a9ba38ce3b5883bbcdde4b02105752f8bd043ca37e46a5eb3e787cf0e043d35fef37f9e6233fb64011b128c42f0
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SSDEEP
98304:aYYiaFq+ieS5FN6Ok4KsxnWuFa9Ky4Bnrz9CeP/hqGP:aYNWaN6/4KsbUUweIGP
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/3904-2-0x0000000003F20000-0x000000000480B000-memory.dmp family_glupteba behavioral2/memory/3904-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3904-99-0x0000000003F20000-0x000000000480B000-memory.dmp family_glupteba behavioral2/memory/3904-97-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/3904-160-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3320-159-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/3692-203-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/3692-214-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/3692-217-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/3692-221-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/3692-225-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/3692-230-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/3692-234-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/3692-237-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/3692-241-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/3692-246-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/3692-250-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/3692-253-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/3692-257-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3848 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3692 csrss.exe 4632 injector.exe 4840 windefender.exe 412 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa0b-206.dat upx behavioral2/memory/4840-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/412-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4840-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/412-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/412-224-0x0000000000400000-0x00000000008DF000-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\"" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.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\"" 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 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe File created C:\Windows\rss\csrss.exe 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.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 4136 sc.exe -
pid Process 860 powershell.exe 4352 powershell.exe 2808 powershell.exe 228 powershell.exe 4896 powershell.exe 4552 powershell.exe 1684 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 1204 schtasks.exe 4604 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,-1661 = "Bahia Daylight Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1022 = "Bangladesh Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2771 = "Omsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.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\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs 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\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.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,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time" windefender.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,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\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\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.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,-104 = "Central Brazilian Daylight Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs 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,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-221 = "Alaskan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time" windefender.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\@tzres.dll,-302 = "Romance Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 860 powershell.exe 860 powershell.exe 3904 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 3904 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 4352 powershell.exe 4352 powershell.exe 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 2808 powershell.exe 2808 powershell.exe 228 powershell.exe 228 powershell.exe 4896 powershell.exe 4896 powershell.exe 4552 powershell.exe 4552 powershell.exe 1684 powershell.exe 1684 powershell.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 3692 csrss.exe 3692 csrss.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 3692 csrss.exe 3692 csrss.exe 4632 injector.exe 4632 injector.exe 3692 csrss.exe 3692 csrss.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe 4632 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 860 powershell.exe Token: SeDebugPrivilege 3904 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Token: SeImpersonatePrivilege 3904 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe Token: SeDebugPrivilege 4352 powershell.exe Token: SeDebugPrivilege 2808 powershell.exe Token: SeDebugPrivilege 228 powershell.exe Token: SeDebugPrivilege 4896 powershell.exe Token: SeDebugPrivilege 4552 powershell.exe Token: SeDebugPrivilege 1684 powershell.exe Token: SeSystemEnvironmentPrivilege 3692 csrss.exe Token: SeSecurityPrivilege 4136 sc.exe Token: SeSecurityPrivilege 4136 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3904 wrote to memory of 860 3904 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 81 PID 3904 wrote to memory of 860 3904 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 81 PID 3904 wrote to memory of 860 3904 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 81 PID 3320 wrote to memory of 4352 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 87 PID 3320 wrote to memory of 4352 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 87 PID 3320 wrote to memory of 4352 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 87 PID 3320 wrote to memory of 3900 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 89 PID 3320 wrote to memory of 3900 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 89 PID 3900 wrote to memory of 3848 3900 cmd.exe 91 PID 3900 wrote to memory of 3848 3900 cmd.exe 91 PID 3320 wrote to memory of 2808 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 92 PID 3320 wrote to memory of 2808 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 92 PID 3320 wrote to memory of 2808 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 92 PID 3320 wrote to memory of 228 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 94 PID 3320 wrote to memory of 228 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 94 PID 3320 wrote to memory of 228 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 94 PID 3320 wrote to memory of 3692 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 96 PID 3320 wrote to memory of 3692 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 96 PID 3320 wrote to memory of 3692 3320 907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe 96 PID 3692 wrote to memory of 4896 3692 csrss.exe 97 PID 3692 wrote to memory of 4896 3692 csrss.exe 97 PID 3692 wrote to memory of 4896 3692 csrss.exe 97 PID 3692 wrote to memory of 4552 3692 csrss.exe 103 PID 3692 wrote to memory of 4552 3692 csrss.exe 103 PID 3692 wrote to memory of 4552 3692 csrss.exe 103 PID 3692 wrote to memory of 1684 3692 csrss.exe 105 PID 3692 wrote to memory of 1684 3692 csrss.exe 105 PID 3692 wrote to memory of 1684 3692 csrss.exe 105 PID 3692 wrote to memory of 4632 3692 csrss.exe 107 PID 3692 wrote to memory of 4632 3692 csrss.exe 107 PID 4840 wrote to memory of 688 4840 windefender.exe 113 PID 4840 wrote to memory of 688 4840 windefender.exe 113 PID 4840 wrote to memory of 688 4840 windefender.exe 113 PID 688 wrote to memory of 4136 688 cmd.exe 114 PID 688 wrote to memory of 4136 688 cmd.exe 114 PID 688 wrote to memory of 4136 688 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\907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe"C:\Users\Admin\AppData\Local\Temp\907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3904 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:860
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C:\Users\Admin\AppData\Local\Temp\907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.exe"C:\Users\Admin\AppData\Local\Temp\907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8.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:3320 -
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:4352
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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:3900 -
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:3848
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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:2808
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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:228
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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:3692 -
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:4896
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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:1204
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4308
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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:4552
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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:1684
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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:4632
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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:4604
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4840 -
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:688 -
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:4136
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:412
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
MD5c8e3987833ddad9492d40063b0fcbcdf
SHA1227bd5442d087a8095e6c45f4ab02c782d355db8
SHA25654a9fa3633315212a078c8143c66925e407a537b5e0206c8b9947f521340e603
SHA512e4e10867b8a24e778477164761ad4c9515699b0d3dc08c56b20685f628cd664612667b61ab5097c9adccefc912d2de71674b4399fb0c38b3e2229b9019f44efd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59095e9470d89cccb1448ba9c5c872fff
SHA164d7fa8fd42dc7c198f772a20acc0436b31f5186
SHA2569f8ed8f4bbea61958f38ae32b74e65c7b6978ecef1590f69468002546971fb64
SHA51257744125ce9e51682b458ebb5f2af95339b41e8e9fc975cd558c18116d51e623aa661875a3ec7cabc4045315d28fcbc9556aef84b832de7ceaf4a4516943fee8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51e9f65eb8172c35169e998082301a10c
SHA1ef222d19392f2a1d6a51fe22315a24e738286612
SHA2567cc39793783685dc4bbcc92816054add67cfd0cdf15b6657541ba3a8a1031eeb
SHA5121d6525ce28d5d67ec38654f93fd65d0070a1c14b22ea8cd6dcb899412d92d7de2ee24a81ebdc327b4717406e45bda1d94e5deb8caad5ace0123e6b2ce9489794
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c75bc49640e69c68004d0f09b7dc141e
SHA195ba097053ebf00ea25f74a7db90adec6d8d84fb
SHA256f4a57705e25fd92291c227c8d89546ea2572e37b63e14836b87a22965c13b616
SHA512f80d16709a946bb12263ab0ac9a4b94a44becb6b9b29a9828d4218774dd8580c45d2291dd69fe41d2a1fda291a50156a9cca457e710b0d5e69788524a699a078
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD501d22a819ab343190141761b83ce6da7
SHA17f27b382112509e6c4dcea6f4b18632d8b538733
SHA256e22d36f04c647d7bc8dd487c2f49680e0ebfdbc35e1fa84f032797d4e7956917
SHA512f71a7a257829f0263ce99f3c7f2b1ca56c8a78ea391c5d29c37f0e313ccc96244e39643af908971affd15180c8ae87fdb6d4d39b63fab9904570001b54a47e46
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Filesize
4.2MB
MD502eab94bb254d99ae65daf798e883cbd
SHA1c70231a43465a6e632bfb47382e8234da0a87b89
SHA256907ac66b1e8debab224e0985321712f12959ee8293d48cf3c945f951d23b78a8
SHA512758eb37bf635aba3dae970da3a71c217713f5a9ba38ce3b5883bbcdde4b02105752f8bd043ca37e46a5eb3e787cf0e043d35fef37f9e6233fb64011b128c42f0
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec