f59a0825984ea11cd97e57308e28430b669e6ee88b0583cdb3a350ac9f585f26

Analysis

max time kernel
93s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
10/07/2024, 07:43

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General

Target

AudioFile2.dll
Size

522KB
MD5

93e0daf8e258f6f344b37d680f67e46d
SHA1

42721b5e89c2b587e1a9079fd720164dce1d3963
SHA256

c54b016478e035d5b4fce090fd20ea416436bda9d58b1e95b58e044c73d1d21d
SHA512

a04d0370c86462edbe7f772f3322e26c429b93ec0be697f1fcfd2abbfe82331afc4f66eda86ebc71384bf4e6264e76e7c9612e7bcd2c8006949cfef40eefc1ff
SSDEEP

12288:Z7CPu8W0QlOMcq2sfo5QmhPFHmbNOtoCCVels+NCWfU/FgLX:Z7CPBolOhqV+MbNOor4lb+gLX

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral6/memory/2300-0-0x0000000010000000-0x00000000101FC000-memory.dmp	upx
behavioral6/memory/2300-1-0x0000000000400000-0x0000000000480000-memory.dmp	upx
behavioral6/memory/2300-3-0x0000000000400000-0x0000000000480000-memory.dmp	upx

Modifies registry class 64 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FE0273D1-99DF-4AC0-87D5-1371C6271785}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{35B8892D-C3FB-4D88-990D-31DB2EBD72BD}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{77829F14-D911-40FF-A2F0-D11DB8D6D0BC}\ProgID\ = "NCTAudioFile2.AudioFile2.2"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{77829F14-D911-40FF-A2F0-D11DB8D6D0BC}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NCTAudioFile2.AudioFile2LameEnc.1\ = "AudioFile2LameEnc Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{35B8892D-C3FB-4D88-990D-31DB2EBD72BD}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\AudioFile2.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FE0273D1-99DF-4AC0-87D5-1371C6271785}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FE0273D1-99DF-4AC0-87D5-1371C6271785}\ = "IAudioFile2LameEnc"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NCTAudioFile2.AudioFile2\CLSID\ = "{77829F14-D911-40FF-A2F0-D11DB8D6D0BC}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{93E3D79C-0786-48FF-9329-93BC9F6DC2B3}\2.0\ = "NCTAudioFile 2.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{93E3D79C-0786-48FF-9329-93BC9F6DC2B3}\2.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{35B8892D-C3FB-4D88-990D-31DB2EBD72BD}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{77829F14-D911-40FF-A2F0-D11DB8D6D0BC}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NCTAudioFile2.AudioFile2LameEnc	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{35B8892D-C3FB-4D88-990D-31DB2EBD72BD}\ = "AudioFile2LameEnc Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3F607E46-0D3C-4442-B1DE-DE7FA4768F5C}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NCTAudioFile2.AudioFile2\CurVer\ = "NCTAudioFile2.AudioFile2.2"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{35B8892D-C3FB-4D88-990D-31DB2EBD72BD}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{93E3D79C-0786-48FF-9329-93BC9F6DC2B3}\2.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{93E3D79C-0786-48FF-9329-93BC9F6DC2B3}\2.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FE0273D1-99DF-4AC0-87D5-1371C6271785}\TypeLib\Version = "2.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FE0273D1-99DF-4AC0-87D5-1371C6271785}\TypeLib\ = "{93E3D79C-0786-48FF-9329-93BC9F6DC2B3}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NCTAudioFile2.AudioFile2LameEnc.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{35B8892D-C3FB-4D88-990D-31DB2EBD72BD}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FE0273D1-99DF-4AC0-87D5-1371C6271785}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3F607E46-0D3C-4442-B1DE-DE7FA4768F5C}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NCTAudioFile2.AudioFile2\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{77829F14-D911-40FF-A2F0-D11DB8D6D0BC}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{77829F14-D911-40FF-A2F0-D11DB8D6D0BC}\TypeLib\ = "{93E3D79C-0786-48FF-9329-93BC9F6DC2B3}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{93E3D79C-0786-48FF-9329-93BC9F6DC2B3}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3F607E46-0D3C-4442-B1DE-DE7FA4768F5C}\TypeLib\Version = "2.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3F607E46-0D3C-4442-B1DE-DE7FA4768F5C}\ = "IAudioFile2"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NCTAudioFile2.AudioFile2.2\ = "NCTAudioFile2 Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{77829F14-D911-40FF-A2F0-D11DB8D6D0BC}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{77829F14-D911-40FF-A2F0-D11DB8D6D0BC}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\AudioFile2.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NCTAudioFile2.AudioFile2LameEnc.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{35B8892D-C3FB-4D88-990D-31DB2EBD72BD}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3F607E46-0D3C-4442-B1DE-DE7FA4768F5C}\ = "IAudioFile2"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{77829F14-D911-40FF-A2F0-D11DB8D6D0BC}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FE0273D1-99DF-4AC0-87D5-1371C6271785}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{35B8892D-C3FB-4D88-990D-31DB2EBD72BD}\VersionIndependentProgID\ = "NCTAudioFile2.AudioFile2LameEnc"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{93E3D79C-0786-48FF-9329-93BC9F6DC2B3}\2.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FE0273D1-99DF-4AC0-87D5-1371C6271785}\ = "IAudioFile2LameEnc"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FE0273D1-99DF-4AC0-87D5-1371C6271785}\TypeLib\ = "{93E3D79C-0786-48FF-9329-93BC9F6DC2B3}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{77829F14-D911-40FF-A2F0-D11DB8D6D0BC}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{77829F14-D911-40FF-A2F0-D11DB8D6D0BC}\VersionIndependentProgID\ = "NCTAudioFile2.AudioFile2"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NCTAudioFile2.AudioFile2LameEnc.1\CLSID\ = "{35B8892D-C3FB-4D88-990D-31DB2EBD72BD}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FE0273D1-99DF-4AC0-87D5-1371C6271785}\TypeLib\Version = "2.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3F607E46-0D3C-4442-B1DE-DE7FA4768F5C}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NCTAudioFile2.AudioFile2	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{93E3D79C-0786-48FF-9329-93BC9F6DC2B3}\2.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3F607E46-0D3C-4442-B1DE-DE7FA4768F5C}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{77829F14-D911-40FF-A2F0-D11DB8D6D0BC}\ = "NCTAudioFile2 Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{77829F14-D911-40FF-A2F0-D11DB8D6D0BC}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{35B8892D-C3FB-4D88-990D-31DB2EBD72BD}\ProgID\ = "NCTAudioFile2.AudioFile2LameEnc.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{93E3D79C-0786-48FF-9329-93BC9F6DC2B3}\2.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\AudioFile2.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NCTAudioFile2.AudioFile2.2\CLSID\ = "{77829F14-D911-40FF-A2F0-D11DB8D6D0BC}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NCTAudioFile2.AudioFile2\ = "NCTAudioFile2 Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NCTAudioFile2.AudioFile2LameEnc\ = "AudioFile2LameEnc Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FE0273D1-99DF-4AC0-87D5-1371C6271785}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FE0273D1-99DF-4AC0-87D5-1371C6271785}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3F607E46-0D3C-4442-B1DE-DE7FA4768F5C}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3F607E46-0D3C-4442-B1DE-DE7FA4768F5C}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3F607E46-0D3C-4442-B1DE-DE7FA4768F5C}\TypeLib\ = "{93E3D79C-0786-48FF-9329-93BC9F6DC2B3}"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2924 wrote to memory of 2300	2924	regsvr32.exe	82
PID 2924 wrote to memory of 2300	2924	regsvr32.exe	82
PID 2924 wrote to memory of 2300	2924	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\AudioFile2.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2924
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\AudioFile2.dll
  2⤵
  - Modifies registry class
  PID:2300

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2300-0-0x0000000010000000-0x00000000101FC000-memory.dmp

Filesize
2.0MB

Download
memory/2300-1-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2300-3-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads