Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a1ceeb08795bdb5…

MALICIOUS

PDF

37.6 KB Created: 2021-05-10 18:00:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f8e7132edbe3717814923467c6db9a45 SHA-1: 6f4a9d371d404c1ae56dd6cec7e0d287fe5a9dee SHA-256: 7a1ceeb08795bdb5f50512604d70b5e555885b78a26b2f41fa0c0e147aeedd85
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a critical heuristic firing for a malicious redirector link, specifically pointing to a 'free generator / game hack' lure. This link, 'https://netcdn.xyz/app/406889139/haktuts-coin-master-free-daily-spins-game-hack', is designed to trick users into downloading or accessing malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URL strongly suggest an attempt to deliver a second-stage payload, likely through a user-initiated click.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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/haktuts-coin-master-free-daily-spins-game-hack In 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_off0000340f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x340F 26916 bytes
SHA-256: bd70b1d000be4b9cfff5c819b2d4d39e54cde4c80e82863872df0bf2afdb7364
font_01_sfnt_off00007109.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7109 18620 bytes
SHA-256: ded7de44f7a870837d4ef416985ae0b9ef78dce3540f45b1558d033e63b05ca7

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