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Analysis
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max time kernel
149s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
19/05/2024, 08:56
Static task
static1
Behavioral task
behavioral1
Sample
dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe
Resource
win10v2004-20240508-en
General
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Target
dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe
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Size
4.1MB
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MD5
efef2069a195abad13afc0107f7912ff
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SHA1
119f6b15be4a28820a3fc1403c31d85eed3b78cd
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SHA256
dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb
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SHA512
c981174f9fbc2a51ac878c23779b84a5739d17ef43f0e2dc10309dadc60691883c706c1049a740498a40696a0b997b105a60302608b8cbcb30614dfa6377c413
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SSDEEP
98304:ovCQaDBnSWO/B+XxjapSyZlG1PnsYHdaWgIg92gsnC3bzMZh6P15:ovC3DFSWO/BjYGk1PnXHoWWZ1za6N5
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/1072-2-0x0000000004430000-0x0000000004D1B000-memory.dmp family_glupteba behavioral1/memory/1072-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1072-56-0x0000000004430000-0x0000000004D1B000-memory.dmp family_glupteba behavioral1/memory/1072-57-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1072-55-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral1/memory/3828-136-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral1/memory/3756-219-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral1/memory/3756-228-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral1/memory/3756-230-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral1/memory/3756-232-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral1/memory/3756-234-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral1/memory/3756-236-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral1/memory/3756-238-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral1/memory/3756-240-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral1/memory/3756-242-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral1/memory/3756-244-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral1/memory/3756-245-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral1/memory/3756-248-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral1/memory/3756-250-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4808 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3756 csrss.exe 1892 injector.exe 4816 windefender.exe 4072 windefender.exe -
resource yara_rule behavioral1/files/0x00090000000235d6-222.dat upx behavioral1/memory/4816-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4816-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4072-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4072-233-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4072-239-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\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 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 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe File created C:\Windows\rss\csrss.exe dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.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 4608 sc.exe -
pid Process 4464 powershell.exe 1788 powershell.exe 4716 powershell.exe 1788 powershell.exe 2356 powershell.exe 4592 powershell.exe 1172 powershell.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 2100 1072 WerFault.exe 89 1788 3828 WerFault.exe 100 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3088 schtasks.exe 2244 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-251 = "Dateline Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-261 = "GMT Daylight 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 (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" 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,-82 = "Atlantic Standard Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-631 = "Tokyo 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)" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-391 = "Arab 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,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-281 = "Central Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2892 = "Sudan 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" windefender.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,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-362 = "GTB Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-531 = "Sri Lanka 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" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4716 powershell.exe 4716 powershell.exe 1072 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 1072 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 1788 powershell.exe 1788 powershell.exe 1788 powershell.exe 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 2356 powershell.exe 2356 powershell.exe 2356 powershell.exe 4592 powershell.exe 4592 powershell.exe 4592 powershell.exe 1172 powershell.exe 1172 powershell.exe 1172 powershell.exe 4464 powershell.exe 4464 powershell.exe 4464 powershell.exe 1788 powershell.exe 1788 powershell.exe 1788 powershell.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 3756 csrss.exe 3756 csrss.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 3756 csrss.exe 3756 csrss.exe 1892 injector.exe 1892 injector.exe 3756 csrss.exe 3756 csrss.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe 1892 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4716 powershell.exe Token: SeDebugPrivilege 1072 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Token: SeImpersonatePrivilege 1072 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe Token: SeDebugPrivilege 1788 powershell.exe Token: SeDebugPrivilege 2356 powershell.exe Token: SeDebugPrivilege 4592 powershell.exe Token: SeDebugPrivilege 1172 powershell.exe Token: SeDebugPrivilege 4464 powershell.exe Token: SeDebugPrivilege 1788 powershell.exe Token: SeSystemEnvironmentPrivilege 3756 csrss.exe Token: SeSecurityPrivilege 4608 sc.exe Token: SeSecurityPrivilege 4608 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1072 wrote to memory of 4716 1072 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 93 PID 1072 wrote to memory of 4716 1072 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 93 PID 1072 wrote to memory of 4716 1072 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 93 PID 3828 wrote to memory of 1788 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 104 PID 3828 wrote to memory of 1788 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 104 PID 3828 wrote to memory of 1788 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 104 PID 3828 wrote to memory of 4140 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 110 PID 3828 wrote to memory of 4140 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 110 PID 4140 wrote to memory of 4808 4140 cmd.exe 112 PID 4140 wrote to memory of 4808 4140 cmd.exe 112 PID 3828 wrote to memory of 2356 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 113 PID 3828 wrote to memory of 2356 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 113 PID 3828 wrote to memory of 2356 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 113 PID 3828 wrote to memory of 4592 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 116 PID 3828 wrote to memory of 4592 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 116 PID 3828 wrote to memory of 4592 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 116 PID 3828 wrote to memory of 3756 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 119 PID 3828 wrote to memory of 3756 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 119 PID 3828 wrote to memory of 3756 3828 dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe 119 PID 3756 wrote to memory of 1172 3756 csrss.exe 122 PID 3756 wrote to memory of 1172 3756 csrss.exe 122 PID 3756 wrote to memory of 1172 3756 csrss.exe 122 PID 3756 wrote to memory of 4464 3756 csrss.exe 127 PID 3756 wrote to memory of 4464 3756 csrss.exe 127 PID 3756 wrote to memory of 4464 3756 csrss.exe 127 PID 3756 wrote to memory of 1788 3756 csrss.exe 130 PID 3756 wrote to memory of 1788 3756 csrss.exe 130 PID 3756 wrote to memory of 1788 3756 csrss.exe 130 PID 3756 wrote to memory of 1892 3756 csrss.exe 132 PID 3756 wrote to memory of 1892 3756 csrss.exe 132 PID 4816 wrote to memory of 2800 4816 windefender.exe 139 PID 4816 wrote to memory of 2800 4816 windefender.exe 139 PID 4816 wrote to memory of 2800 4816 windefender.exe 139 PID 2800 wrote to memory of 4608 2800 cmd.exe 140 PID 2800 wrote to memory of 4608 2800 cmd.exe 140 PID 2800 wrote to memory of 4608 2800 cmd.exe 140 -
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\dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe"C:\Users\Admin\AppData\Local\Temp\dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1072 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4716
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C:\Users\Admin\AppData\Local\Temp\dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.exe"C:\Users\Admin\AppData\Local\Temp\dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb.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:3828 -
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:1788
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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:4140 -
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:4808
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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:2356
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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:4592
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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:3756 -
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:1172
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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:3088
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3312
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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:4464
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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:1788
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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:1892
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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:2244
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4816 -
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:2800 -
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:4608
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3828 -s 6243⤵
- Program crash
PID:1788
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 8722⤵
- Program crash
PID:2100
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3800,i,15140928051103392835,1612840580898364401,262144 --variations-seed-version --mojo-platform-channel-handle=3824 /prefetch:81⤵PID:2208
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1072 -ip 10721⤵PID:216
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3828 -ip 38281⤵PID:2800
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4072
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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5835d5d172539c1c694edf94aa953c09f
SHA105284bb75e641de2036f4ddd90d322272111ecc5
SHA2566370c997a5b298f0e9dc0e4d843f4b3d8c31733a3c4994f4903435c2fdbd07cc
SHA512c19afbec3f4692cd9ea949568ff475a85fe1ec292f6d355d40fb0240b5e635567a1b112abd355f7d78e78475a2b4dfa5ec85ef544fcfbc7e5ad08e2817238839
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fb5f504c4982f677e62627369b0c249e
SHA1599d8035dc1adbbc8db41cd356fad064b4d2351b
SHA256c4fb481d76d97f7bb9eef5939cf429f700e901f98876e7f759c894027343d420
SHA51227684a1250ce27bfb3ae46cf9df84598a4a474eaf00ce62e09c7cee7920f582c4713518b33ac4e63d036ef19a876c8b240958cd57d48e4a31726324f11e5c762
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c6f12240dad5a62169e66421805f3e76
SHA1df1d75d9e49c0ea9674e7d8e8a41edd248d37177
SHA256e2da0d9401089ff5a6025ce509f89a38517ed3f197fed35461706ca4cb9c926c
SHA512241dba9a52017a740d9020192f0fbc5174f22bc88cf658acdf10b5a68aad6675cb5ff764dfde10cebc73c64966ef6b3094fee17c3b1cd4bed4891a7574e436d0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b1592ef5b12c2db46a810783fd5687ab
SHA160e3ff230d3e53b626c99bcd7d15ce35245c221c
SHA2568d429a43576118365fe731e7079f23e8f31ddebdb1586ad8f1267af0d824c091
SHA51273bc99a99ed5f592953f8ea11832226fdb2443916c9c75547af8ec5a8a7546f685a5a7c8452bd0d41f600e0715280f8be47fd6500f069f7d0d82023c3092b139
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD587e0370ef6c606094359fa987c5c5be4
SHA1fc0751e801d79d64a556af730e4d248c878dcbd2
SHA2565f7f4d9e2b64a2aa41c0f8f5d0851eaa959434807a7bc83fd08df2cfd350f3cf
SHA512e9a1a0f61fd2c16011f2d7f3297d5954a3f9cb9be02044964b8e4972ebe1538091682fde7c53e9fd713123448acaf7d9ea1c64a5dca26b9df18faea8ac42cb1a
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Filesize
4.1MB
MD5efef2069a195abad13afc0107f7912ff
SHA1119f6b15be4a28820a3fc1403c31d85eed3b78cd
SHA256dfa1104c9deca09f277092598517fdae1b6868ba2eb806a500e13752a2ca90bb
SHA512c981174f9fbc2a51ac878c23779b84a5739d17ef43f0e2dc10309dadc60691883c706c1049a740498a40696a0b997b105a60302608b8cbcb30614dfa6377c413
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec