Analysis
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max time kernel
150s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
04/04/2024, 17:30
Static task
static1
Behavioral task
behavioral1
Sample
03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe
Resource
win10v2004-20240226-en
General
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Target
03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe
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Size
4.1MB
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MD5
673db3b71dfa54a2cda20f65f26795ad
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SHA1
70281af0cdc83986fb200ff1d3f2f2a47e03d86f
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SHA256
03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0
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SHA512
afb63ce97a95a918c17a20f7ef755086c686115fc21e9354a8db2635203d8073ee09ca562d96e12de2d4cff62e5d77a8dfa6a0718bde7db95e6cb2994a366e79
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SSDEEP
98304:DH5J7CzszSbiwn7GrcYbqmT2oxXGbns7pL8WqJWTgfK:dMU4iw7Yx2bns7pLfTgfK
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/3000-2-0x0000000005240000-0x0000000005B2B000-memory.dmp family_glupteba behavioral2/memory/3000-3-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral2/memory/3000-43-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral2/memory/3000-45-0x0000000005240000-0x0000000005B2B000-memory.dmp family_glupteba behavioral2/memory/1028-47-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral2/memory/1028-121-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral2/memory/1028-123-0x0000000004CA0000-0x00000000050A6000-memory.dmp family_glupteba behavioral2/memory/1028-142-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral2/memory/3400-145-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral2/memory/3400-239-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral2/memory/3400-250-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral2/memory/3400-254-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral2/memory/3400-258-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral2/memory/3400-263-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral2/memory/3400-266-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral2/memory/3400-270-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral2/memory/3400-274-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral2/memory/3400-278-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral2/memory/3400-282-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral2/memory/3400-286-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3876 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3400 csrss.exe 4188 injector.exe 4952 windefender.exe 1204 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a798-243.dat upx behavioral2/memory/4952-248-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1204-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1204-260-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\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 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe File created C:\Windows\rss\csrss.exe 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.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 3640 sc.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 1716 1584 WerFault.exe 77 -
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 3024 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\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\Internet Settings\ZoneMap\ 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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-82 = "Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1584 powershell.exe 1584 powershell.exe 3000 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 3000 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 3672 powershell.exe 3672 powershell.exe 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1532 powershell.exe 1532 powershell.exe 1288 powershell.exe 1288 powershell.exe 3724 powershell.exe 3724 powershell.exe 4668 powershell.exe 4668 powershell.exe 3132 powershell.exe 3132 powershell.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 3400 csrss.exe 3400 csrss.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 3400 csrss.exe 3400 csrss.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 3400 csrss.exe 3400 csrss.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1584 powershell.exe Token: SeDebugPrivilege 3000 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Token: SeImpersonatePrivilege 3000 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Token: SeDebugPrivilege 3672 powershell.exe Token: SeDebugPrivilege 1532 powershell.exe Token: SeDebugPrivilege 1288 powershell.exe Token: SeDebugPrivilege 3724 powershell.exe Token: SeDebugPrivilege 4668 powershell.exe Token: SeDebugPrivilege 3132 powershell.exe Token: SeSystemEnvironmentPrivilege 3400 csrss.exe Token: SeSecurityPrivilege 3640 sc.exe Token: SeSecurityPrivilege 3640 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3000 wrote to memory of 1584 3000 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 77 PID 3000 wrote to memory of 1584 3000 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 77 PID 3000 wrote to memory of 1584 3000 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 77 PID 1028 wrote to memory of 3672 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 110 PID 1028 wrote to memory of 3672 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 110 PID 1028 wrote to memory of 3672 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 110 PID 1028 wrote to memory of 4184 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 111 PID 1028 wrote to memory of 4184 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 111 PID 4184 wrote to memory of 3876 4184 cmd.exe 89 PID 4184 wrote to memory of 3876 4184 cmd.exe 89 PID 1028 wrote to memory of 1532 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 90 PID 1028 wrote to memory of 1532 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 90 PID 1028 wrote to memory of 1532 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 90 PID 1028 wrote to memory of 1288 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 92 PID 1028 wrote to memory of 1288 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 92 PID 1028 wrote to memory of 1288 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 92 PID 1028 wrote to memory of 3400 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 94 PID 1028 wrote to memory of 3400 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 94 PID 1028 wrote to memory of 3400 1028 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 94 PID 3400 wrote to memory of 3724 3400 csrss.exe 95 PID 3400 wrote to memory of 3724 3400 csrss.exe 95 PID 3400 wrote to memory of 3724 3400 csrss.exe 95 PID 3400 wrote to memory of 4668 3400 csrss.exe 100 PID 3400 wrote to memory of 4668 3400 csrss.exe 100 PID 3400 wrote to memory of 4668 3400 csrss.exe 100 PID 3400 wrote to memory of 3132 3400 csrss.exe 103 PID 3400 wrote to memory of 3132 3400 csrss.exe 103 PID 3400 wrote to memory of 3132 3400 csrss.exe 103 PID 3400 wrote to memory of 4188 3400 csrss.exe 105 PID 3400 wrote to memory of 4188 3400 csrss.exe 105 PID 4952 wrote to memory of 4184 4952 windefender.exe 111 PID 4952 wrote to memory of 4184 4952 windefender.exe 111 PID 4952 wrote to memory of 4184 4952 windefender.exe 111 PID 4184 wrote to memory of 3640 4184 cmd.exe 112 PID 4184 wrote to memory of 3640 4184 cmd.exe 112 PID 4184 wrote to memory of 3640 4184 cmd.exe 112 -
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\03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe"C:\Users\Admin\AppData\Local\Temp\03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3000 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1584 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1584 -s 21483⤵
- Program crash
PID:1716
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C:\Users\Admin\AppData\Local\Temp\03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe"C:\Users\Admin\AppData\Local\Temp\03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.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:1028 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3672
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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:4184 -
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:3876
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1532
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1288
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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:3400 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3724
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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:3404
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4668
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3132
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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:4188
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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:3024
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4952 -
C:\Windows\System32\Conhost.exe\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV15⤵PID:3672
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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:4184 -
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:3640
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1584 -ip 15841⤵PID:1056
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1204
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
MD5a3a538a0cf3d3d491cec27275618e80f
SHA1c5c321722bca32e1cf935fa62213e05353d5fe9f
SHA256920b99c150e781759a968480746fa9f90ca5c900c6166e3e42d536e8ef313130
SHA5127de1872d19c714ef97274c681b56bfafd62f332af0ae938c0bbc3d61a80e3d004fcbd7a4e7b5625c75dbabfcdebd91371e3da97df75b961c49310cece23e50a3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD550eb3159ffba323b4575de416769ccdf
SHA1e8372d9fc2775c525e21045df7470bb72bef78b0
SHA2567b3622bf557e933829e0356cfe7a0be36e322166ef2838369d1aa79f71039680
SHA5127f5aee93b79a586ebe4179221a8310c671e986ccb83299bacb6e1f7a6e69e3e57de0924f178494142f1d0e9f45400b7c9771bcdbb72597ab731e568f1e83a576
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58da0131dfd326e50bd5127d1a58d8265
SHA1f9006651a5f5768ad0f1cf223769462cfde02577
SHA25695d07e44a9c7f06bf6cf768a5033e7c2a5a5c832f4d5b47957038568d74aa2d1
SHA512e219d2f8c18d0b90f40fdfc09d497b6c9c1346fbfdd2ff9186374e62acc46fe1e5d9629a291e9ff0dfc13a6bd34d18665b610eddcf803f392a2f13752eeb2c64
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56df37ebcf71322cb2ec1a443e5296601
SHA17992f3fd65b3ceda63e1511ffae45363e249d8a0
SHA256568cbd8f2255518cf65494b9f70c4a023ca48fb7b9771c630d6c616938adb3e9
SHA5121aa85868d74f36868a711fbb0a49750d596814b3332e458ff5cf6ff8af72bd803c9be56a99bacc98abdb3cb40c7ea17d44567f53c0749c0bb26500e40d514303
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD516977158746cceadb1377bb5d9f42483
SHA18c70062d29b4bfb32a712de1cf3714d789e0ae70
SHA256b0233fec8de62810517338fa53be017992b9e71b27e0416cf53a911039078f1c
SHA51244134dfafe1086ad4243e979324c4d09ba34e18e9f31c40d63027deab9e842a466738c0286f5c87f55c0aa6605913554c264e8e080f75cad662a145fe93cff26
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Filesize
4.1MB
MD5673db3b71dfa54a2cda20f65f26795ad
SHA170281af0cdc83986fb200ff1d3f2f2a47e03d86f
SHA25603c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0
SHA512afb63ce97a95a918c17a20f7ef755086c686115fc21e9354a8db2635203d8073ee09ca562d96e12de2d4cff62e5d77a8dfa6a0718bde7db95e6cb2994a366e79
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec