Malicious PDF — malware analysis report

Static analysis result for SHA-256 80ab7bb504a4656d…

MALICIOUS

PDF

35.0 KB Created: 2021-06-28 21:19:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 7944589f043e3c5d6dc575eb18bdf71a SHA-1: 2ea76ad43f117a400418e002926ff911fee2dda8 SHA-256: 80ab7bb504a4656db98cdb0417a6ab1f6e9e99733e260e9e26b52ffc09792e6b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links that redirect to websites offering game hacks and cheats, such as 'Roblox Neueste Version Free Download'. These links are presented as download buttons, aiming to trick users into clicking them. The primary malicious URL identified is http://netcdn.co/app/431946152/roblox-neueste-version-free-download-game-hack, which is flagged as a malicious redirector. No scripts were extracted, but the document's structure and embedded URLs indicate a social engineering lure for potentially unwanted downloads.

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.co/app/431946152/roblox-neueste-version-free-download-game-hack In PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/tiktok-free-followers-2021_GM835599320.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-online-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/mcpe-com_GM479516143.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-coins_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-private-minecraft-server_GM479516143.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-robux-pins_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/comment-hacker-roblox-version-anglaise_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-roblox-followers-generator-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/how-to-get-any-gamepass-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/roblox-rise-of-nations-cheat_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-draw-2-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/roblox-free-wings-edit-avatar_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/gaming-dunia-coin-master-free-spins_GM406889139.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_off0000318e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x318E 21908 bytes
SHA-256: 96c2be194b83904714849a29eeaf6cc461aa57655af8de3ffe6be75fb9a3ca6f
font_01_sfnt_off000061d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D5 19652 bytes
SHA-256: a5652876e174ca62b1d20815babf051f0fdd5d5d56c7f2b51a056a7d607d0f36

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