Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e7fc9144ae43b43…

MALICIOUS

PDF

40.1 KB Created: 2021-05-11 22:32:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a98e6cd9b3df6f27188fdc323300e4c0 SHA-1: 8aca57e29f7bd6f9ed7a25d5d4c5655e1d581c6a SHA-256: 0e7fc9144ae43b4376fb75ffc39b6861bc63b69c9ec3cfabe4c97f705e22c9f8
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to a malicious URL. The document body also contains text related to 'Coin Master Free Spins' and a call to action to 'CLICK HERE TO ACCESS COIN MASTER GENERATOR', reinforcing the phishing lure. The embedded URL is known to be malicious, indicating the document's primary purpose is to redirect users to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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-free-spins-and-coins-blogspot-game-hack In 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_003_off000033e5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33E5 26080 bytes
SHA-256: ade30901a2abd4bac09048fce357df0f6db3f3ae5c24a648830fc4e547275fef
font_01_sfnt_off00006ef8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF8 3400 bytes
SHA-256: 4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07
font_02_sfnt_off00007a22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A22 18636 bytes
SHA-256: 0f54115b9972647639797d248389657ce322f7c5c12f639c73d71ff235a73201

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