Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1f16ea6c5de4532…

MALICIOUS

PDF

41.0 KB Created: 2021-05-13 09:09:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5c3f420c327ad257482b93702fea3f36 SHA-1: a9ae98afee467a50b4d5731bc7120335939c51d5 SHA-256: e1f16ea6c5de45324a409ef7f34710c8abb916487e31d8ce0939455f1beb67da
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting "game hacks" and "free generators". The primary lure is a link to "hack-coin-master-apk-2021-game-hack" hosted on netcdn.xyz, which is flagged as a malicious redirector. Additional links point to various "free robux" and "game hack" related PDFs on pjj.mtsntpi.my.id. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a phishing or scam attempt designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/hack-coin-master-apk-2021-game-hack In PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/roblox-games-to-play-for-free_GM431946152.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/how-to-get-free-shirts-on-roblox_GM431946152.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/hack-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/can-i-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/how-to-get-free-skins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • http://pjj.mtsntpi.my.id/__statics/gudangsoal/files/how-to-get-free-roblox-money_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_003_off000047e9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47E9 23744 bytes
SHA-256: d3a3bf5ee76677c1ed5e1e00ee2dc5096ebb0986be5aeac48b65935d85edf368
font_01_sfnt_off00007dbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBC 18296 bytes
SHA-256: b61961072e26d7bd0036d68b99eed8fd62c21626b4f1bee3075b0e2ab41f2bf5

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