Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf52d303561c5e97…

MALICIOUS

PDF

33.6 KB Created: 2021-07-04 01:45:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2df4731d46e598d54ad914fd55619e3c SHA-1: 057c58a68a2a9719cdc3eb6e8e80392d41f312c0 SHA-256: bf52d303561c5e97ebf2eb9c125598a0757a92cddd0aae81c9a7faf7112ba418
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a game hack, specifically referencing Minecraft Pocket Edition, and links to a suspicious URL. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent. The document likely aims to trick users into downloading potentially malicious software disguised as a game hack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/479516143/minecraft-pocket-edition-free-download-game-hack PDF link annotation
    • http://digilib.unla.ac.id/repository/roman-colosseum-roblox-free-model_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-game-packs-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/pokemon-go-free-account-2021_GM1094591345.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/daily-free-coin-and-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/como-descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/game-hunters-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/what-is-a-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-glitches-and-cheats_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-version-2021-free-download_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/get-robux-today_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/terminal-railway-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E7A 22188 bytes
SHA-256: 0c278cc1b57ce0fc1a605b5a9517519b63ed32bb45915e029641039c4f99b491
font_01_sfnt_off00005ee0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE0 18900 bytes
SHA-256: e997c6825c31d07da770567e7ce25c132e242bbd6499ebc453973595e8028df8

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