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Analysis
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max time kernel
122s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
13/10/2023, 16:05
Static task
static1
Behavioral task
behavioral1
Sample
NEAS.05bb05be919ba25b7a30c070afb72e90_JC.dll
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
NEAS.05bb05be919ba25b7a30c070afb72e90_JC.dll
Resource
win10v2004-20230915-en
General
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Target
NEAS.05bb05be919ba25b7a30c070afb72e90_JC.dll
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Size
154KB
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MD5
05bb05be919ba25b7a30c070afb72e90
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SHA1
5091ce61d55ac4e22580fdb1fe1bac1e050e912c
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SHA256
f53b5e47faf3aa19be911686038e37af32d78e43845082bf4ed1c0812f59afca
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SHA512
05f3007f56a4b70ab2aabe6e14a5e4164314af53ae29250d5531862ab5552f09d70e0f0f998adf00533adc34b66cb212aae6085884b21db592adc6176946354f
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SSDEEP
3072:hyJWxKouy1GVsmdPvSYFETC2lQBV+UdE+rECWp7hKGy:hd4y1GVsmdPvpETIBV+UdvrEFp7hKP
Malware Config
Signatures
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ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x0009000000012022-1.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 2188 regsvr32.exe -
resource yara_rule behavioral1/files/0x0009000000012022-1.dat upx behavioral1/memory/2188-3-0x0000000000100000-0x0000000000130000-memory.dmp upx behavioral1/memory/2188-5-0x0000000000100000-0x0000000000130000-memory.dmp upx -
Drops file in Program Files directory 1 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll regsvr32.exe -
Modifies registry class 62 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\UltraISO\shellex\ContextMenuHandlers\ISOShell regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ISOShell.UIContextMenu\CLSID\ = "{AD392E40-428C-459F-961E-9B147782D099}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Folder\ShellEx\ContextMenuHandlers\UltraISO\ = "{AD392E40-428C-459F-961E-9B147782D099}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ISOShell.UIContextMenu.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ISOShell.UIContextMenu.1\ = "UIContextMenu Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1CD46142-F3D3-4E46-87BA-7CC019142F9D}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\binimage\shellex\ContextMenuHandlers regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\binimage\shellex\ContextMenuHandlers\ISOShell\ = "{AD392E40-428C-459F-961E-9B147782D099}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AD392E40-428C-459F-961E-9B147782D099} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AD392E40-428C-459F-961E-9B147782D099}\VersionIndependentProgID\ = "ISOShell.UIContextMenu" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AD392E40-428C-459F-961E-9B147782D099}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AD392E40-428C-459F-961E-9B147782D099}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\NEAS.05bb05be919ba25b7a30c070afb72e90_JC.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1CD46142-F3D3-4E46-87BA-7CC019142F9D}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9653DE66-C5E0-4AEE-ADE5-0197BA68CE2B}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\ContextMenuHandlers\UltraISO regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ISOShell.UIContextMenu.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AD392E40-428C-459F-961E-9B147782D099}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1CD46142-F3D3-4E46-87BA-7CC019142F9D} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9653DE66-C5E0-4AEE-ADE5-0197BA68CE2B}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\binimage regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ISOShell.UIContextMenu regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ISOShell.UIContextMenu\CurVer\ = "ISOShell.UIContextMenu.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AD392E40-428C-459F-961E-9B147782D099}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9653DE66-C5E0-4AEE-ADE5-0197BA68CE2B}\TypeLib\ = "{1CD46142-F3D3-4E46-87BA-7CC019142F9D}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\UltraISO\ = "{AD392E40-428C-459F-961E-9B147782D099}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1CD46142-F3D3-4E46-87BA-7CC019142F9D}\1.0\ = "ISOShell 1.0 Type Library" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9653DE66-C5E0-4AEE-ADE5-0197BA68CE2B}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\UltraISO\shellex regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1CD46142-F3D3-4E46-87BA-7CC019142F9D}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9653DE66-C5E0-4AEE-ADE5-0197BA68CE2B} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9653DE66-C5E0-4AEE-ADE5-0197BA68CE2B}\TypeLib\ = "{1CD46142-F3D3-4E46-87BA-7CC019142F9D}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\UltraISO regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ISOShell.UIContextMenu\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\ContextMenuHandlers\UltraISO\ = "{AD392E40-428C-459F-961E-9B147782D099}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AD392E40-428C-459F-961E-9B147782D099}\TypeLib\ = "{1CD46142-F3D3-4E46-87BA-7CC019142F9D}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1CD46142-F3D3-4E46-87BA-7CC019142F9D}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\NEAS.05bb05be919ba25b7a30c070afb72e90_JC.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9653DE66-C5E0-4AEE-ADE5-0197BA68CE2B}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ISOShell.UIContextMenu.1\CLSID\ = "{AD392E40-428C-459F-961E-9B147782D099}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AD392E40-428C-459F-961E-9B147782D099}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AD392E40-428C-459F-961E-9B147782D099}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1CD46142-F3D3-4E46-87BA-7CC019142F9D}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9653DE66-C5E0-4AEE-ADE5-0197BA68CE2B}\ = "IUIContextMenu" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9653DE66-C5E0-4AEE-ADE5-0197BA68CE2B}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ISOShell.UIContextMenu\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\UltraISO\shellex\ContextMenuHandlers regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\UltraISO\shellex\ContextMenuHandlers\ISOShell\ = "{AD392E40-428C-459F-961E-9B147782D099}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ISOShell.UIContextMenu\ = "UIContextMenu Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AD392E40-428C-459F-961E-9B147782D099}\ = "UIContextMenu Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AD392E40-428C-459F-961E-9B147782D099}\ProgID\ = "ISOShell.UIContextMenu.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1CD46142-F3D3-4E46-87BA-7CC019142F9D}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\UltraISO regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9653DE66-C5E0-4AEE-ADE5-0197BA68CE2B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\binimage\shellex regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AD392E40-428C-459F-961E-9B147782D099}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1CD46142-F3D3-4E46-87BA-7CC019142F9D}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9653DE66-C5E0-4AEE-ADE5-0197BA68CE2B} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9653DE66-C5E0-4AEE-ADE5-0197BA68CE2B}\ = "IUIContextMenu" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9653DE66-C5E0-4AEE-ADE5-0197BA68CE2B}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9653DE66-C5E0-4AEE-ADE5-0197BA68CE2B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\ContextMenuHandlers\UltraISO regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1CD46142-F3D3-4E46-87BA-7CC019142F9D}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\binimage\shellex\ContextMenuHandlers\ISOShell regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2456 wrote to memory of 2188 2456 regsvr32.exe 27 PID 2456 wrote to memory of 2188 2456 regsvr32.exe 27 PID 2456 wrote to memory of 2188 2456 regsvr32.exe 27 PID 2456 wrote to memory of 2188 2456 regsvr32.exe 27 PID 2456 wrote to memory of 2188 2456 regsvr32.exe 27 PID 2456 wrote to memory of 2188 2456 regsvr32.exe 27 PID 2456 wrote to memory of 2188 2456 regsvr32.exe 27
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\NEAS.05bb05be919ba25b7a30c070afb72e90_JC.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2456 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\NEAS.05bb05be919ba25b7a30c070afb72e90_JC.dll2⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Modifies registry class
PID:2188
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab