Analysis
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max time kernel
150s -
max time network
141s -
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 05:35
Static task
static1
Behavioral task
behavioral1
Sample
21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe
Resource
win10v2004-20240508-en
General
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Target
21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe
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Size
4.1MB
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MD5
f560113dabdc26f0534175cd1b3f8e42
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SHA1
33b90d6ddef508838c9496f38cf9c87edcc9d227
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SHA256
21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d
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SHA512
4c69ce696017a848d1d3410af5b00bb8e0ec06d2b261db6b3ae51bdcb662ceab88fff87306a2e7e428e6dd024ebc4b8d4d79a7d963e50544507649105df60723
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SSDEEP
98304:8WlQWNKQPwrulMpohZQjk4lnBk2/sgseYryCqOgI7KD2bsOvJZ+2+Y9:8W16ulMesXlnBp/sjruCqmtIOvam
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/4020-2-0x00000000044E0000-0x0000000004DCB000-memory.dmp family_glupteba behavioral1/memory/4020-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4020-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4020-55-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/4020-57-0x00000000044E0000-0x0000000004DCB000-memory.dmp family_glupteba behavioral1/memory/2756-136-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2372-215-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2372-224-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2372-231-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2372-233-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2372-235-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2372-237-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2372-239-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2372-241-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2372-243-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2372-245-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2372-247-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2372-249-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2372-251-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3696 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2372 csrss.exe 4536 injector.exe 4384 windefender.exe 4184 windefender.exe -
resource yara_rule behavioral1/files/0x0009000000023421-223.dat upx behavioral1/memory/4384-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4184-228-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4384-230-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4184-232-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4184-236-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\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\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 File created 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 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3816 sc.exe -
pid Process 936 powershell.exe 1860 powershell.exe 744 powershell.exe 1544 powershell.exe 3468 powershell.exe 2224 powershell.exe 1316 powershell.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 4876 4020 WerFault.exe 82 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3516 schtasks.exe 1804 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,-2061 = "North Korea Daylight Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.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,-402 = "Arabic Standard Time" windefender.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,-252 = "Dateline Standard Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-622 = "Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\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\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-661 = "Cen. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.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\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2591 = "Tocantins Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.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,-1022 = "Bangladesh Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-412 = "E. Africa Standard 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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.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,-572 = "China Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3468 powershell.exe 3468 powershell.exe 4020 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 4020 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 2224 powershell.exe 2224 powershell.exe 2224 powershell.exe 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 1316 powershell.exe 1316 powershell.exe 936 powershell.exe 936 powershell.exe 1860 powershell.exe 1860 powershell.exe 744 powershell.exe 744 powershell.exe 1544 powershell.exe 1544 powershell.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 2372 csrss.exe 2372 csrss.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 2372 csrss.exe 2372 csrss.exe 2372 csrss.exe 2372 csrss.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe 4536 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3468 powershell.exe Token: SeDebugPrivilege 4020 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Token: SeImpersonatePrivilege 4020 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe Token: SeDebugPrivilege 2224 powershell.exe Token: SeDebugPrivilege 1316 powershell.exe Token: SeDebugPrivilege 936 powershell.exe Token: SeDebugPrivilege 1860 powershell.exe Token: SeDebugPrivilege 744 powershell.exe Token: SeDebugPrivilege 1544 powershell.exe Token: SeSystemEnvironmentPrivilege 2372 csrss.exe Token: SeSecurityPrivilege 3816 sc.exe Token: SeSecurityPrivilege 3816 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4020 wrote to memory of 3468 4020 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 84 PID 4020 wrote to memory of 3468 4020 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 84 PID 4020 wrote to memory of 3468 4020 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 84 PID 2756 wrote to memory of 2224 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 100 PID 2756 wrote to memory of 2224 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 100 PID 2756 wrote to memory of 2224 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 100 PID 2756 wrote to memory of 3208 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 104 PID 2756 wrote to memory of 3208 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 104 PID 3208 wrote to memory of 3696 3208 cmd.exe 106 PID 3208 wrote to memory of 3696 3208 cmd.exe 106 PID 2756 wrote to memory of 1316 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 107 PID 2756 wrote to memory of 1316 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 107 PID 2756 wrote to memory of 1316 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 107 PID 2756 wrote to memory of 936 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 109 PID 2756 wrote to memory of 936 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 109 PID 2756 wrote to memory of 936 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 109 PID 2756 wrote to memory of 2372 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 111 PID 2756 wrote to memory of 2372 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 111 PID 2756 wrote to memory of 2372 2756 21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe 111 PID 2372 wrote to memory of 1860 2372 csrss.exe 112 PID 2372 wrote to memory of 1860 2372 csrss.exe 112 PID 2372 wrote to memory of 1860 2372 csrss.exe 112 PID 2372 wrote to memory of 744 2372 csrss.exe 117 PID 2372 wrote to memory of 744 2372 csrss.exe 117 PID 2372 wrote to memory of 744 2372 csrss.exe 117 PID 2372 wrote to memory of 1544 2372 csrss.exe 120 PID 2372 wrote to memory of 1544 2372 csrss.exe 120 PID 2372 wrote to memory of 1544 2372 csrss.exe 120 PID 2372 wrote to memory of 4536 2372 csrss.exe 123 PID 2372 wrote to memory of 4536 2372 csrss.exe 123 PID 4384 wrote to memory of 4700 4384 windefender.exe 130 PID 4384 wrote to memory of 4700 4384 windefender.exe 130 PID 4384 wrote to memory of 4700 4384 windefender.exe 130 PID 4700 wrote to memory of 3816 4700 cmd.exe 131 PID 4700 wrote to memory of 3816 4700 cmd.exe 131 PID 4700 wrote to memory of 3816 4700 cmd.exe 131 -
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\21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe"C:\Users\Admin\AppData\Local\Temp\21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4020 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3468
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C:\Users\Admin\AppData\Local\Temp\21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.exe"C:\Users\Admin\AppData\Local\Temp\21a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d.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:2756 -
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:2224
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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:3208 -
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:3696
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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:1316
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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:936
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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:2372 -
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:1860
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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:3516
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1412
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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:744
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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:1544
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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:4536
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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:1804
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4384 -
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:4700 -
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:3816
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 8202⤵
- Program crash
PID:4876
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4020 -ip 40201⤵PID:1936
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4184
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54afb5c7484f9c7bc5a1165653d6d3ba4
SHA1b426d8c791287afe370e4e0cdc2beb9c6e21c386
SHA256225d41bb51556a704f705dc425d4a3c2afecaf7181637c2271c78d4480577922
SHA512f0cb9b609b7c537ca341c2a3d1e8a20f97d47c7a500f6ad7f5a0ad3efb4d9fdcaf5ec788e9c5696ee2a7e946f7dedd9eec1775f087a7ff0b4454e1741dcc4839
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a5cf2f6cca72627518538ced08ba24a6
SHA1601a30d141bab53ae3ab4228daf5d83fbcf25a62
SHA2569f9b19e5e454afac06c1fe20f1ca0215452ea22539d9b8ab5900f15a109ac862
SHA5121961eff5d1fbcea6386e0d91d7b276623dfba6e4dabe6915bdba138441789e3a25627d8588386f44826e7c88ee703e29ba75442049d9bf4053587b604aeea348
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD531b0682dfd3cb2794d8b871b6386693e
SHA1da245eac7a40c0a5f6cfe4d66b71adbbcacd314c
SHA256cca697ba2313722f74c171deb73a3174e4b4123e807a65d89a078b31a88316f4
SHA512979e84655e608d62e90bf9a7eca81f2506233d3505925bcb0c6ae49bfb493f16c7de5bc65bc5d39585a70a0527b4b409d0d6dd6e7d3c876931c0d79f0ce0679d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56af9c1574f11af896cc3f2030d4b07f8
SHA12163b38d7565228acd25bdcba4b9b68e6c986d87
SHA25645661a7e49927953cc99448b30cc09bf396d84d441911d533a197d1e549ffb75
SHA512c3ff94216ee360976a3fcc7b1b949d3c18aea4587eb8a86e3ecd89c770c38553aa79fb8be298f47d6e8751089eb6c6efd96e150bba282ab4edac53f9ec46dc4b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ccf660126fd0a8f9f6322d0cbb16c1a3
SHA1a673803a75b30123f8e404d990e0e028a2feb450
SHA25656c87f95c64e41824c3aadf50f38fea88c38a2808ad10e59422b6295b1171471
SHA512b4d0505dfc7cf5dc78b4faa167a03e3c302842d320a8a45ecda39db52399ba3ed30bf7f14d359741b88dc5fc76da56ea3343aa69660a2b4fcd244c7d80c01c29
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Filesize
4.1MB
MD5f560113dabdc26f0534175cd1b3f8e42
SHA133b90d6ddef508838c9496f38cf9c87edcc9d227
SHA25621a8fa129fcd394da0536b1bebb15c7dc9c2033e002ebda7e4267339466d815d
SHA5124c69ce696017a848d1d3410af5b00bb8e0ec06d2b261db6b3ae51bdcb662ceab88fff87306a2e7e428e6dd024ebc4b8d4d79a7d963e50544507649105df60723
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec