Malicious PDF — malware analysis report

Static analysis result for SHA-256 600e2d71ec4d5024…

MALICIOUS

PDF

34.1 KB Created: 2021-07-05 17:55:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ed15e17b38a4034268d6af29595cfe2b SHA-1: 55d9cea728287b9623e0dfecbbccd0e2a27642c3 SHA-256: 600e2d71ec4d50248a1e88f057020a21a2fb14f5f86393f426666f418bbefbb4
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a fake CAPTCHA lure to trick users into clicking a link, likely leading to a malicious download or exploit. The document body and heuristics indicate a focus on 'free Robux' and game hacks, a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it may leverage JavaScript for redirection or exploit delivery, aligning with T1059.007.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/431946152/free-robux-app-real-game-hack PDF link annotation
    • http://digilib.iailm.ac.id/repository/hacks-for-falling-that-actually-work-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-ad_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-game-free-download_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/robux-hack-no-human-verification-no-download-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/counter-blox-roblox-offensive-wall-hack-download_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-money-in-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/hack-magic-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/tiktok-free-robux-hack_GM835599320.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-roblox-song-id_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/aternos-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-script-hack-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/roblox-how-to-get-free-clothes_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-vip-for-roblox-free-video-star-egg_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/hacker-roblox-bob-esponja_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-roblox-script-executor-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/robux-hack-apk-2021_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_off00002f53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F53 22140 bytes
SHA-256: 72d00eeaeb9219c44aadcb5e5f2872689c2a3428dbb15179a4f805617d005181
font_01_sfnt_off00006067.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6067 18968 bytes
SHA-256: 40e70f9896c1d2dd73ce0a34c726294904c345e0ceccadb112d3bcb1bf7365a7

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