Overview

overview

7

Static

static

3

Postfix.exe

windows10-2004-x64

7

Postfix.exe

windows11-ltsc_2024-x64

7

Analysis

  • max time kernel
    599s
  • max time network
    602s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-ja
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-jalocale:ja-jpos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/07/2026, 14:11

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General

  • Target
    Postfix.exe
  • Size 11.4MB
  • Sample260705-rhnlbacy6v
  • SHA256 0e819084eb75f8f42ace9afe4a402db0f75e3021279ab2c0f9c0d2d6fd543f2e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • GoLang User-Agent 64 IoCs

    Uses default user-agent string defined by GoLang HTTP packages.

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Postfix.exe
    "C:\Users\Admin\AppData\Local\Temp\Postfix.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4412
    • C:\Users\Admin\Documents\mx\mx-go.exe
      C:\Users\Admin\Documents\mx\mx-go.exe
      2⤵
      • Executes dropped EXE
      PID:2900
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:1460

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          mx-go.exe
          • Path C:\Users\Admin\Documents\mx\mx-go.exe
          • Size 11.4MB
          • SHA256 0e819084eb75f8f42ace9afe4a402db0f75e3021279ab2c0f9c0d2d6fd543f2e
          • MD5 SHA1 SHA512 SSDEEP TLSH
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