f53b5e47faf3aa19be911686038e37af32d78e43845082bf4ed1c0812f59afca

Analysis

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

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General

Target

NEAS.05bb05be919ba25b7a30c070afb72e90_JC.dll
Size

154KB
MD5

05bb05be919ba25b7a30c070afb72e90
SHA1

5091ce61d55ac4e22580fdb1fe1bac1e050e912c
SHA256

f53b5e47faf3aa19be911686038e37af32d78e43845082bf4ed1c0812f59afca
SHA512

05f3007f56a4b70ab2aabe6e14a5e4164314af53ae29250d5531862ab5552f09d70e0f0f998adf00533adc34b66cb212aae6085884b21db592adc6176946354f
SSDEEP

3072:hyJWxKouy1GVsmdPvSYFETC2lQBV+UdE+rECWp7hKGy:hd4y1GVsmdPvpETIBV+UdvrEFp7hKP

Score

7^/10

upx

Malware Config

Signatures

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

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

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

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\NEAS.05bb05be919ba25b7a30c070afb72e90_JC.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2456
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\NEAS.05bb05be919ba25b7a30c070afb72e90_JC.dll
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Modifies registry class
  PID:2188

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/2188-3-0x0000000000100000-0x0000000000130000-memory.dmp

Filesize
192KB

Download
memory/2188-4-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/2188-5-0x0000000000100000-0x0000000000130000-memory.dmp

Filesize
192KB

Download