Malicious PDF — malware analysis report

Static analysis result for SHA-256 f236c8d64de5b820…

MALICIOUS

PDF

34.4 KB Created: 2021-07-05 10:06:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 5f166895e0a644f125efc575cb6c73be SHA-1: 6ab5e2969a78e8b9089fac1c661c70877d9b5aa8 SHA-256: f236c8d64de5b8205e0323590c49333eb0a6161d68791d3fd95a037fdc825c7c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains multiple links designed to lure users into clicking on what appear to be game hack generators or free currency sites. The primary link, http://netcdn.tw/app/479516143/minecraft-cheat-client-game-hack, is identified as a malicious redirector. The document body and heuristics confirm the intent is to drive traffic to potentially harmful external sites, likely for further exploitation or malware delivery.

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/479516143/minecraft-cheat-client-game-hack In PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-hack-free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-tower-defence-hacks_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-hero-roblox_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-robux-no-survey-at-all_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/hacking-coolrichytimemax-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-xbox-360-download-free_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-get-gold-cards-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-hack-mod-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-base-wars-hack-god-mode_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-robux-earn_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/face-roblox-png-free_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-roblox-2021-unlimited-codes-for-kids_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-25-dollar-roblox-card_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-hack-generaort_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-get-free-robux-no-human-verification-on-mobile_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-hack-proxo-smasher_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-hack-tool-no-human-verification_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003217.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3217 22684 bytes
SHA-256: fcc0197fa97f85376c03015464caf33afb3a9696e8d5fb035d06d2ccae11d802
font_01_sfnt_off0000647f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647F 18096 bytes
SHA-256: a995cd656f0262510fbde6104514bc63f73b186495f82817e83ff315ecbe0e31

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