6603ce42132a2cb1aea51d1ff1086dbd9bbb14a18e014789239797af8110c67e

Analysis

max time kernel
93s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-10-2024 12:00

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General

Target

UFDeMux.dll
Size

165KB
MD5

710c57be6571fbd6540397833a4240e4
SHA1

bc62f460f1cff763403bf99d6880167aa4dbfd65
SHA256

3e6b6986aabd4b06327102d6b563509a3778493defa575c74d57acf50a110a86
SHA512

df006e9052681da2932569048834496b5f1cd202b27581ed1ed3c414ffb7f8c63821cb2316a1b38ea84d624f4972c55fb813ce2bad573057b261029c9995c213
SSDEEP

3072:6m6ZUWxvkj1eQ5afND5WxHR07RvZjpWPGMw7tcmardfN:6mGw1uoR6h2bwimaRfN

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 16 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{48CF8992-4161-49D6-9A9B-F1FDB3BAE74D}	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{48CF8992-4161-49D6-9A9B-F1FDB3BAE74D}\FilterData = 02000000000060000200000000000000307069330000000000000000010000000000000000000000307479330000000060000000600000003170693308000000000000000100000000000000000000003074793300000000600000006000000000000000000000000000000000000000	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{48CF8992-4161-49D6-9A9B-F1FDB3BAE74D}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\Extensions\.ucf\Media Type = "{E436EB83-524F-11CE-9F53-0020AF0BA770}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\Extensions\.ucf\Subtype = "{F070A0E8-B213-47E4-8991-252AC82EE6A1}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{48CF8992-4161-49D6-9A9B-F1FDB3BAE74D}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\UFDeMux.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{48CF8992-4161-49D6-9A9B-F1FDB3BAE74D}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{48CF8992-4161-49D6-9A9B-F1FDB3BAE74D}\CLSID = "{48CF8992-4161-49D6-9A9B-F1FDB3BAE74D}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{F070A0E8-B213-47E4-8991-252AC82EE6A1}\0 = "0,4,,46494c45"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{48CF8992-4161-49D6-9A9B-F1FDB3BAE74D}\ = "UUSEE DeMultiplexer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{48CF8992-4161-49D6-9A9B-F1FDB3BAE74D}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\Extensions\.ucf\Source Filter = "{E436EBB5-524F-11CE-9F53-0020AF0BA770}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{48CF8992-4161-49D6-9A9B-F1FDB3BAE74D}\FriendlyName = "UUSEE DeMultiplexer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{F070A0E8-B213-47E4-8991-252AC82EE6A1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{F070A0E8-B213-47E4-8991-252AC82EE6A1}\Source Filter = "{E436EBB5-524F-11CE-9F53-0020AF0BA770}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\Extensions\.ucf	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3872 wrote to memory of 1192	3872	regsvr32.exe	85
PID 3872 wrote to memory of 1192	3872	regsvr32.exe	85
PID 3872 wrote to memory of 1192	3872	regsvr32.exe	85

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\UFDeMux.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3872
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\UFDeMux.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:1192

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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