Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6f9eb56109edeb9…

MALICIOUS

PDF

34.1 KB Created: 2021-07-04 11:33:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f96602beffc73bc5a416aa240a91885c SHA-1: e512087272a237140d399febc09ae52ec7e42203 SHA-256: e6f9eb56109edeb914faf940a4b4d77481fadeda41c528f50de8f16b4dfa1981
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and generators. The primary redirector URL is http://netcdn.tw/app/406889139/coin-master-hack-tool-access-online-generator-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a malicious intent to redirect users to potentially harmful content.

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/406889139/coin-master-hack-tool-access-online-generator-game-hack In PDF document text
    • http://perpus.wdh.ac.id//repository/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-levitation-animation-pack-free_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-jailbreak-hack-pay_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-robux-how-to-pass-human-verify_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/get-free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-robux-app_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/craftwars-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-the-pizzeria-rp-remastered-fazcoins-hack-script_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/discord-roblox-fr-hack_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/hacks-for-roblox-on-phone_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-dick-hack_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-free-spins-daily-1-ga_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/vide-hacking-for-roblox-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
stream_002_off00003035.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3035 22676 bytes
SHA-256: 0f4198452084a511ef36a0f714652fec46cd44df3aeb407e3674516da557e7ce
font_01_sfnt_off00006312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6312 18080 bytes
SHA-256: 466388122f55d8099f8a2cc4a3f5b35df7f53bc4c57d622fd163220439f445a2

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