Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0ab80f743218928…

MALICIOUS

PDF

34.9 KB Created: 2021-05-15 10:05:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4fcf44751a943adeea5684aa20e68b33 SHA-1: 24d6755dba806ee7b18e336c7ffdc3752c5a9840 SHA-256: d0ab80f74321892814ca6ea9a4b48e502f9e07a68ea58c857b9524104b3e9bf9
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a prominent link and call-to-action text related to 'Coin Master Rewards' and a 'generator'. This link redirects to a known malicious domain, indicating a phishing or scam attempt. The heuristic firings confirm the presence of a malicious redirector and a lure for game hacks. No scripts were extracted, but the document's structure and embedded URL strongly suggest a phishing attack.

Machine Learning

  • Nyx PDF Classifier clean score 0.0306

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-rewards-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_off00003115.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3115 24096 bytes
SHA-256: d3cb93481138fa189e57b89bd15e4a06d2a5fe79979e66cefdb943ae232c4b7e
font_01_sfnt_off000067e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67E1 17884 bytes
SHA-256: acbd2960432ed6aaee9cffad063da1b3d43b5b4e200ce15de4e80cb136e5b59b