Overview

overview

10

Static

static

3

voyeuseT1.exe

windows10-1703-x64

10

voyeuseT1.exe

windows10-2004-x64

10

voyeuseT1.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    1794s
  • max time network
    1800s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/08/2024, 18:41

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General

  • Target
    voyeuseT1.exe
  • Size 223KB
  • Sample240802-xb2r9avgln
  • SHA256 010337998810c5415119965fe4c71b277af7b34f2357c8f2026f5f2a01ef50ab
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
koiloaderdiscoveryloader

Malware Config

Extracted

Family

  • koiloader

C2

  • http://146.103.41.195/flirter.php

Attributes
  • payload_url

    https://www.andreasalini.com/wp-content/uploads/2019/12

Signatures

  • KoiLoader

    KoiLoader is a malware loader written in C++.

    loaderkoiloader
  • Detects KoiLoader payload 1 IoCs
    loader
  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\voyeuseT1.exe
    "C:\Users\Admin\AppData\Local\Temp\voyeuseT1.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:2072
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4076,i,12198811467968044966,17227406646827438786,262144 --variations-seed-version --mojo-platform-channel-handle=4328 /prefetch:8
    1⤵
      PID:3896
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4236,i,12198811467968044966,17227406646827438786,262144 --variations-seed-version --mojo-platform-channel-handle=5108 /prefetch:8
      1⤵
        PID:2192

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            memory/2072-0-0x0000000001070000-0x000000000107D000-memory.dmp
            Download