Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d1026e5d0542e7e…

MALICIOUS

PDF

34.7 KB Created: 2021-07-19 02:36:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 962968232be9016d54bca099a46922aa SHA-1: 0385ed5d676b9ca6611f2097e81a74e87e993b2d SHA-256: 6d1026e5d0542e7eabd3f2297b828118e0eba55c51bf7b49627236eab5f76e35
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs and a prominent call-to-action phrase, suggesting a phishing or scam attempt. The ML classifier also flagged this PDF as malicious. While no scripts were directly extracted, the presence of external URIs and the document's content indicate an attempt to trick the user into downloading potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9594

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/835599320/free-tiktok-bots-game-hack In PDF document text
    • http://balkanin.com/images/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://balkanin.com/images/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://balkanin.com/images/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://balkanin.com/images/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
    • http://balkanin.com/images/how-to-get-a-cape-in-minecraft-for-free_GM479516143.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
font_00_sfnt_off00003414.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3414 23008 bytes
SHA-256: 65125febceac2e9f34ced559aae8da0eb1070c219b4ef2cd0b5112fa5858b37f
font_01_sfnt_off000067d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67D2 17672 bytes
SHA-256: 83a0af7587fde9e4cb54786aef6824729efdfe72bd6282daf62b8eaca0103fce

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