Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ae5f3e3ed50914c…

MALICIOUS

PDF

33.9 KB Created: 2021-07-06 02:08:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 8340807ca01c63fb116fcfbd4bcb808b SHA-1: a594f58901ab5ba604b5c68b5d9a31594fc73b88 SHA-256: 3ae5f3e3ed50914c4b39617842ce019951525a5688bfdd641cf28a2df59ba46f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs that redirect to sites offering game hacks and free items, such as 'roblox-free-items-glitch-game-hack'. The heuristics indicate these links point to known malicious redirector infrastructure. The document's content and structure strongly suggest a phishing or scam attempt designed to lure users into clicking malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/roblox-free-items-glitch-game-hack In PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/150-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/unlimited-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/how-to-get-free-gamepasses-on-roblox_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/roblox-studio-free-download-for-pc_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/roblox-play-for-free-unblocked_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/robux-premium_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-bonus_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/is-minecraft-free-on-pc_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/hack-coin-pro-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/earn-robux-online_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/free-vip-server-roblox-super-power-training-simulator_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/easy-way-to-get-robux_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_off00002ddf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DDF 22040 bytes
SHA-256: 6cb942f8f1e3a9ed2c04c9fac7af1c0234db7f91713ae9cb87d8650eb9902de8
font_01_sfnt_off00005ed9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED9 19300 bytes
SHA-256: 69d2c72b6fad46034d218509eb31c7a9b6e4ffa15011304f4c9b6feca00e8b8a

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