Malicious PDF — malware analysis report

Static analysis result for SHA-256 e310690ff3d71ae3…

MALICIOUS

PDF

38.9 KB Created: 2021-05-22 15:10:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9b7204d3cbf16bffe3cda16109ec41eb SHA-1: bc24efbc048f822a5c0c802ec0899d50468adf49 SHA-256: e310690ff3d71ae3d3cedd819cc889e8bfbd5d63487eb1fb318a03bfc18d738e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites that offer "generators" or "hacks" for popular games, such as Coin Master and Roblox. One prominent URL, https://netcdn.xyz/app/406889139/coin-master-daily-gift-free-spins-and-coins-link-game-hack, is flagged as a malicious redirector. The document body also contains a call to action to "CLICK HERE TO ACCESS COIN MASTER GENERATOR", reinforcing the lure. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or scam attempt, likely leading to credential harvesting or further malicious content delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/coin-master-daily-gift-free-spins-and-coins-link-game-hack In PDF document text
    • http://behsanroshd.com/images/can-you-really-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/master-coin-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032ec.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32EC 24852 bytes
SHA-256: 0dfabb4d36ecdfb2d7b1a831db55e31c695a300fc5bac8fc5741ccbc7aa874c3
font_01_sfnt_off00006b50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B50 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off0000753b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x753B 18652 bytes
SHA-256: 366d9c9b3cd0388843e044af578ba3ade018a9e96efb4083e0cc5bdd66e71c38

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