Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce6808f8752b0f41…

MALICIOUS

PDF

48.5 KB Created: 2021-06-10 21:34:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1f90627575679a1bf47e9d06e589710b SHA-1: d2e6253989d4ce2451f495a9a86f42fb7520ff3d SHA-256: ce6808f8752b0f41081bfc24afbd758848f1882c7501f52c323e36b02882c30d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising 'free Robux' or game hacks. The primary lure URL is https://netcdn.tw/app/431946152/free-robux-just-username-game-hack, which is associated with a high-risk score. The document body, though partially corrupted, contains references to this lure and other similar URLs hosted on repository.poliven.ac.id, suggesting a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.tw/app/431946152/free-robux-just-username-game-hack In PDF document text
    • http://repository.poliven.ac.id/repository/robloxhacks_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/pokemon-go-gameplay-free-online_GM1094591345.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/robux-boost_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/hack-robux-free-pastebin_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/free-coin-master-spins-blogger_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/pubg-uc-price_GM1330123889.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-limiteds-roblox_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/static-moonactive-net-rewards_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004eed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EED 26120 bytes
SHA-256: eec5a6ad4df32e87444226d29f2b85d9112f8c3c9592c68e9f2f41ae373600bd
font_01_sfnt_off00008ba5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BA5 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off000098b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98B6 18960 bytes
SHA-256: 472f6a5ea174befaf949a8d73b0934af8708aea4922a03c6e27595a43ef8ea79

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