c5987d44c0bc189124f6924e3e2380f606acb42ce4834b35e7ed20cf43b50338

Analysis

max time kernel
15s
max time network
18s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
23/08/2024, 09:59

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General

Target

NShutClt/MsgBlkMgr.dll
Size

87KB
MD5

80c6eeeb507aa3c88ee9d75dc3e26a5b
SHA1

bc5a6c6479b5002f806a4bc322172cc8f36ce24e
SHA256

bed3fba27a8210d985269cb8aaa83c466783280ecf05be31b56d7a9a51d630cb
SHA512

6d9f3a5c232b05e0a48ac9e280ab1561fd21b942eb4319b23d44ae0811c0ccf1357a5b1ba8f1fa5eb8638d6c458c420f29794e4c3593f74cb9866f712371d592
SSDEEP

1536:FsqOiYe+R8Z4nXy+tWX3MXx7UYRN/O0mA5tKAy:FsqOiYZ8MX9WX3uUYDO0758Ay

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 9 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{07ED9068-392B-4C62-B690-4B6C8F223D08}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{07ED9068-392B-4C62-B690-4B6C8F223D08}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\NShutClt\\MsgBlkMgr.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{07ED9068-392B-4C62-B690-4B6C8F223D08}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MsgBlkMg.MsgBlkMg	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MsgBlkMg.MsgBlkMg\CLSID\ = "{07ED9068-392B-4C62-B690-4B6C8F223D08}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{07ED9068-392B-4C62-B690-4B6C8F223D08}\ = "MsgBlkMg MsgBlkMg"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{07ED9068-392B-4C62-B690-4B6C8F223D08}\ProgID\ = "MsgBlkMg.MsgBlkMg"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MsgBlkMg.MsgBlkMg\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{07ED9068-392B-4C62-B690-4B6C8F223D08}	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 860 wrote to memory of 2040	860	regsvr32.exe	29
PID 860 wrote to memory of 2040	860	regsvr32.exe	29
PID 860 wrote to memory of 2040	860	regsvr32.exe	29
PID 860 wrote to memory of 2040	860	regsvr32.exe	29
PID 860 wrote to memory of 2040	860	regsvr32.exe	29
PID 860 wrote to memory of 2040	860	regsvr32.exe	29
PID 860 wrote to memory of 2040	860	regsvr32.exe	29

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\NShutClt\MsgBlkMgr.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:860
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\NShutClt\MsgBlkMgr.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2040

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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