Overview

overview

6

Static

static

3

tmpnegrc0re.exe

windows10-ltsc_2021-x64

6

tmpnegrc0re.exe

windows10-2004-x64

6

tmpnegrc0re.exe

windows11-21h2-x64

6

Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    04/07/2026, 21:41

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General

  • Target
    tmpnegrc0re.exe
  • Size 1.5MB
  • Sample260704-1jsfbses7w
  • SHA256 1a29470c92958381d61437a22fbbc1e2f2e9f00c7e09a4fc0c0b9426688ae6f4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
discoverypersistence

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 47 IoCs
  • Drops file in Windows directory 64 IoCs
  • 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
  • Checks processor information in registry 2 TTPs 6 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmpnegrc0re.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpnegrc0re.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:3236
  • C:\Users\Admin\AppData\Local\Temp\tmpnegrc0re.exe
    C:\Users\Admin\AppData\Local\Temp\tmpnegrc0re.exe
    1⤵
    • Drops file in System32 directory
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:3288

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        widevinecdmadapterUnicode.exe
        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\widevinecdmadapterUnicode.exe
        • Size 8.9MB
        • SHA256 f813a93d6f40a832b26f79e34e77130115c0b00b20339480b10bd91b467ee6e3
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        Proxymsedgeexe.exe
        • Path C:\Program Files (x86)\Microsoft\Edge\Application\Proxymsedgeexe.exe
        • Size 2.1MB
        • SHA256 129f55988252d779a1f532af8869e0dc596e2aa73ecf8652527d62fbe27b7b07
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        mpasdescWindows.exe
        • Path C:\Program Files (x86)\Windows Defender\uk-UA\mpasdescWindows.exe
        • Size 1.5MB
        • SHA256 77e633a983ac9ceb7e2f6872104bf0b26c62e1e54cae136ef031cc9e919315c3
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        wmlaunchWMPNSSCI.exe
        • Path C:\Program Files (x86)\Windows Media Player\it-IT\wmlaunchWMPNSSCI.exe
        • Size 1.5MB
        • SHA256 1a29470c92958381d61437a22fbbc1e2f2e9f00c7e09a4fc0c0b9426688ae6f4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX4DCD.tmp
        • Path C:\Windows\assembly\GAC_MSIL\System.WorkflowServices.Resources\3.5.0.0_fr_31bf3856ad364e35\RCX4DCD.tmp
        • Size 1.5MB
        • SHA256 8216b9165880f13a6a5c18f47aa3b97ed607a89a6090ef83b8627477ba3d0754
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download