4704846c5605552a2573aeb62f176630fd2ba5498457420c3fb36a27cae6800f

Analysis

max time kernel
45s
max time network
143s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
01/10/2024, 11:59

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General

Target

EzExtractProShell32.dll
Size

126KB
MD5

24be51bce468016e106b55b19a2cbc80
SHA1

c7e18c81ebe523a1fefd845c9f9e09b881fccd11
SHA256

2d3a1c7e0e6256344648a054bc5526d4804538fef9cc87efab9edb426bf1f4a6
SHA512

697d736f24b8e28db98885ad248048f43d6bf26237dc0e9651d37810d992fb2482cfd23a26d10164a2a30ad326fbbaca9390730ec498972cc91f673b77756859
SSDEEP

3072:y/jBvy5HvTzwlKF75GsZMV8/bvQ3MOfJUES6Xm:y/+v/wlCtG+VgRBUEX2

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 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{3D983473-BB31-4609-9F85-3A93CE453FC7}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3D983473-BB31-4609-9F85-3A93CE453FC7}\ = "EzExtractPro Context Menu Handler"	regsvr32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{3D983473-BB31-4609-9F85-3A93CE453FC7}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3D983473-BB31-4609-9F85-3A93CE453FC7}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\EzExtractProShell32.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3D983473-BB31-4609-9F85-3A93CE453FC7}\InProcServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3D983473-BB31-4609-9F85-3A93CE453FC7}\ManualSafeSave = "1"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 2696	2300	regsvr32.exe	78
PID 2300 wrote to memory of 2696	2300	regsvr32.exe	78
PID 2300 wrote to memory of 2696	2300	regsvr32.exe	78

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\EzExtractProShell32.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\EzExtractProShell32.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2696

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

Windows 7 deprecation

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