Analysis
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max time kernel
150s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
20-05-2024 04:05
Static task
static1
Behavioral task
behavioral1
Sample
3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe
Resource
win10v2004-20240426-en
General
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Target
3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe
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Size
4.1MB
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MD5
8024286f987116a26af559751f992473
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SHA1
3a51b40b88b0d187426f64c572911e868e11ca4a
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SHA256
3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4
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SHA512
e041db2b4baa016648d6ab915bc70af8d0344e13c2cf1142540fd7628a9f738479607e40ae4935adf9296649180b0eebe2b9a337c05f3bd1c214c65a3b01eccf
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SSDEEP
98304:uQAQcsa3GhfWYEvpb4LdECaqY+VYhFzXw/u5g9cAd9n2:uQAQcDPYxuCJe7X5ghf2
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/4076-2-0x0000000004A60000-0x000000000534B000-memory.dmp family_glupteba behavioral2/memory/4076-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4076-78-0x0000000004A60000-0x000000000534B000-memory.dmp family_glupteba behavioral2/memory/4076-77-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4076-120-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3500-119-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3500-193-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/572-201-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/572-213-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/572-216-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/572-220-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/572-224-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/572-228-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/572-233-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/572-237-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/572-240-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/572-244-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/572-249-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/572-253-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3104 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 572 csrss.exe 4576 injector.exe 2664 windefender.exe 4956 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa27-204.dat upx behavioral2/memory/2664-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4956-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2664-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4956-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4956-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\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 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe File created C:\Windows\rss\csrss.exe 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.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 1496 sc.exe -
pid Process 1200 powershell.exe 2396 powershell.exe 2124 powershell.exe 2480 powershell.exe 4484 powershell.exe 4480 powershell.exe 556 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 2096 schtasks.exe 1092 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,-2571 = "Turks and Caicos Daylight Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-51 = "Greenland Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates 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\@tzres.dll,-371 = "Jerusalem 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,-161 = "Central Daylight Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.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\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.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,-202 = "US Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs 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,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1411 = "Syria Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.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,-1802 = "Line Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight 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" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates 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,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.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,-202 = "US Mountain Standard Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1200 powershell.exe 1200 powershell.exe 4076 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 4076 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 2396 powershell.exe 2396 powershell.exe 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 2124 powershell.exe 2124 powershell.exe 2480 powershell.exe 2480 powershell.exe 4484 powershell.exe 4484 powershell.exe 4480 powershell.exe 4480 powershell.exe 556 powershell.exe 556 powershell.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 572 csrss.exe 572 csrss.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 572 csrss.exe 572 csrss.exe 4576 injector.exe 4576 injector.exe 572 csrss.exe 572 csrss.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe 4576 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1200 powershell.exe Token: SeDebugPrivilege 4076 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Token: SeImpersonatePrivilege 4076 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe Token: SeDebugPrivilege 2396 powershell.exe Token: SeDebugPrivilege 2124 powershell.exe Token: SeDebugPrivilege 2480 powershell.exe Token: SeDebugPrivilege 4484 powershell.exe Token: SeDebugPrivilege 4480 powershell.exe Token: SeDebugPrivilege 556 powershell.exe Token: SeSystemEnvironmentPrivilege 572 csrss.exe Token: SeSecurityPrivilege 1496 sc.exe Token: SeSecurityPrivilege 1496 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4076 wrote to memory of 1200 4076 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 79 PID 4076 wrote to memory of 1200 4076 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 79 PID 4076 wrote to memory of 1200 4076 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 79 PID 3500 wrote to memory of 2396 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 84 PID 3500 wrote to memory of 2396 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 84 PID 3500 wrote to memory of 2396 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 84 PID 3500 wrote to memory of 4592 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 86 PID 3500 wrote to memory of 4592 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 86 PID 4592 wrote to memory of 3104 4592 cmd.exe 88 PID 4592 wrote to memory of 3104 4592 cmd.exe 88 PID 3500 wrote to memory of 2124 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 89 PID 3500 wrote to memory of 2124 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 89 PID 3500 wrote to memory of 2124 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 89 PID 3500 wrote to memory of 2480 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 91 PID 3500 wrote to memory of 2480 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 91 PID 3500 wrote to memory of 2480 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 91 PID 3500 wrote to memory of 572 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 93 PID 3500 wrote to memory of 572 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 93 PID 3500 wrote to memory of 572 3500 3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe 93 PID 572 wrote to memory of 4484 572 csrss.exe 94 PID 572 wrote to memory of 4484 572 csrss.exe 94 PID 572 wrote to memory of 4484 572 csrss.exe 94 PID 572 wrote to memory of 4480 572 csrss.exe 100 PID 572 wrote to memory of 4480 572 csrss.exe 100 PID 572 wrote to memory of 4480 572 csrss.exe 100 PID 572 wrote to memory of 556 572 csrss.exe 102 PID 572 wrote to memory of 556 572 csrss.exe 102 PID 572 wrote to memory of 556 572 csrss.exe 102 PID 572 wrote to memory of 4576 572 csrss.exe 104 PID 572 wrote to memory of 4576 572 csrss.exe 104 PID 2664 wrote to memory of 3908 2664 windefender.exe 110 PID 2664 wrote to memory of 3908 2664 windefender.exe 110 PID 2664 wrote to memory of 3908 2664 windefender.exe 110 PID 3908 wrote to memory of 1496 3908 cmd.exe 111 PID 3908 wrote to memory of 1496 3908 cmd.exe 111 PID 3908 wrote to memory of 1496 3908 cmd.exe 111 -
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\3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe"C:\Users\Admin\AppData\Local\Temp\3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4076 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1200
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C:\Users\Admin\AppData\Local\Temp\3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.exe"C:\Users\Admin\AppData\Local\Temp\3b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4.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:3500 -
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:2396
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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:4592 -
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:3104
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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:2124
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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:2480
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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:572 -
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:4484
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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:2096
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1752
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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:4480
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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:556
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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:4576
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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:1092
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2664 -
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:3908 -
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:1496
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4956
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54f66c80202f06cd2cc044fbf2433b9c7
SHA1483d50220836313966d916a699df0a468c01acde
SHA25650ef8cd449bf4e41fcd59d0d1c4ada69d194969c58372462df0682f985f3f15c
SHA512294e7eabda2fded72aa05ec7c808316f2a0eb7338425e2b463673a5b7ac4940d053a96e1f0700daaf14e895b8935758413c6cbc084ad3c4670b7e74611f04405
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f4f56d98278f3d1b3b129df43faf77f6
SHA1d04a3173b63d3b0d51ccd7cd9f0b6b36923624c4
SHA256eb0ed34b7b67082bceda2ecac1d21c4f064837a78eb41c3487f8038c8f216fc5
SHA512d5b4b26d4cc1f17abb4777f41b2c6ad5e0fab5d706e13ddfb6c22344a7f04d3a4217041ea226b6802b1bbaa4a90cc0e4d99d5f55e670082b4e0b682d233e22b4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c3b606696d6552d8572e971060e24248
SHA1f04e72240d99d827f871e1217f0b91800aee2936
SHA25638a71c4f12fb698a7ba1516d7c18e3b98e41d1bb0ae2a76dfb928c1cd5242625
SHA5123820f1d96fd6a9dea59a496b73db45bfa026208fac206d3d624d3d45d5f8763a5a1993d19e6ede89b6436032fc813c495192bf706b8d8f96e4909542cf06508e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5be222785617061c95493e4515d1ea90e
SHA125729129a9d2aa989e7e7ec096f7c424868336a1
SHA25699c14e3c01e0d2f7854f8ea6a80be79fcb2f7e76afc500a606901acfd6b55ef2
SHA512c9c0f75c03135ace5a5c090d2ba951b5a3b68b23b245aae191e49ff1a00e6b2e8bcb286aed4df1365942135c0ef74de47d6575c109e9b9ea65d1964bb4dae4c9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a0d73abb3de16c4bb752108da4f5aa4a
SHA18a22f100e7e5c22a9412a1669fe9beabaf2766d0
SHA256d342aa3008f78844d90af103dad45ca7951912d6b4619fc81d74eae7b92f1e5d
SHA512b077975f4c56c61a69eddec2553c0e90e684346b2365ac1b58387f01273af48dd7b08aa10038da5f6e96508a5e97bbaaa228c7c1c1eab5c515b7813d50ed32b2
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Filesize
4.1MB
MD58024286f987116a26af559751f992473
SHA13a51b40b88b0d187426f64c572911e868e11ca4a
SHA2563b17f0818ff4eeb9ddaf4a2f63714a58df0dfe1451fda54e8ab1e165518fb7a4
SHA512e041db2b4baa016648d6ab915bc70af8d0344e13c2cf1142540fd7628a9f738479607e40ae4935adf9296649180b0eebe2b9a337c05f3bd1c214c65a3b01eccf
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec