613e2610f5d51ecd11ee5ff5d1ed32b331af678e4e5e64f2b2a544787a97cea7

Analysis

max time kernel
119s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-11-2024 23:39

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General

Target

Codecs/FLVSplitter.dll
Size

387KB
MD5

dc3cb32fa1984c1d2c8a46669ca50dfd
SHA1

36cac8e356e463e30d32565749dbe9bb9ec258ae
SHA256

e1774bc800fa2ba76c35c395bc55fc1e55650e92728c9b12ecd1d68482130a89
SHA512

637e43e57ce367608d0f9702a196a1a053083b371c6f1a19553d9d92bf84ed002539a35cdeb3c7088382504955d21e0db4f358ebf40f84d5afa6f6fc9454bcba
SSDEEP

6144:18Bb1GKVQWDsoD+xr4EGl4TIIqremnfyD/TXP7:18t1GKVQWDmM43qremfyT

Score

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 21 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{C9ECE7B3-1D8E-41F5-9F24-B255DF16C087}\FriendlyName = "MPC - FLV Source (Gabest)"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{F2FAC0F1-3852-4670-AAC0-9051D400AC54}\Source Filter = "{E436EBB5-524F-11CE-9F53-0020AF0BA770}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{47E792CF-0BBE-4F7A-859C-194B0768650A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{47E792CF-0BBE-4F7A-859C-194B0768650A}\ = "MPC - FLV Splitter (Gabest)"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{47E792CF-0BBE-4F7A-859C-194B0768650A}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{47E792CF-0BBE-4F7A-859C-194B0768650A}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C9ECE7B3-1D8E-41F5-9F24-B255DF16C087}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Codecs\\FLVSplitter.dll"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{47E792CF-0BBE-4F7A-859C-194B0768650A}\FilterData = 02000000000060000200000000000000307069330000000000000000020000000000000000000000307479330000000060000000700000003174793300000000600000008000000031706933080000000000000000000000000000000000000083eb36e44f52ce119f530020af0ba770f1c0faf252387046aac09051d400ac5400000000000000000000000000000000	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{F2FAC0F1-3852-4670-AAC0-9051D400AC54}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C9ECE7B3-1D8E-41F5-9F24-B255DF16C087}\ = "MPC - FLV Source (Gabest)"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{C9ECE7B3-1D8E-41F5-9F24-B255DF16C087}\FilterData = 02000000000060000000000000000000	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C9ECE7B3-1D8E-41F5-9F24-B255DF16C087}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{47E792CF-0BBE-4F7A-859C-194B0768650A}\FriendlyName = "MPC - FLV Splitter (Gabest)"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{47E792CF-0BBE-4F7A-859C-194B0768650A}\CLSID = "{47E792CF-0BBE-4F7A-859C-194B0768650A}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{C9ECE7B3-1D8E-41F5-9F24-B255DF16C087}\CLSID = "{C9ECE7B3-1D8E-41F5-9F24-B255DF16C087}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{F2FAC0F1-3852-4670-AAC0-9051D400AC54}\0 = "0,4,,464C5601"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{47E792CF-0BBE-4F7A-859C-194B0768650A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Codecs\\FLVSplitter.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C9ECE7B3-1D8E-41F5-9F24-B255DF16C087}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C9ECE7B3-1D8E-41F5-9F24-B255DF16C087}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{47E792CF-0BBE-4F7A-859C-194B0768650A}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{C9ECE7B3-1D8E-41F5-9F24-B255DF16C087}	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 1816	1724	regsvr32.exe	30
PID 1724 wrote to memory of 1816	1724	regsvr32.exe	30
PID 1724 wrote to memory of 1816	1724	regsvr32.exe	30
PID 1724 wrote to memory of 1816	1724	regsvr32.exe	30
PID 1724 wrote to memory of 1816	1724	regsvr32.exe	30
PID 1724 wrote to memory of 1816	1724	regsvr32.exe	30
PID 1724 wrote to memory of 1816	1724	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\Codecs\FLVSplitter.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\Codecs\FLVSplitter.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:1816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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