Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b2ea74f8bb87747…

MALICIOUS

PDF

35.6 KB Created: 2021-05-14 22:15:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3011a314041f77cac601cce16811be51 SHA-1: e18ad5cb41e5531aa643e9e1ed8992fe20e4aac8 SHA-256: 7b2ea74f8bb8774718664654a27c705afdb1b7e783f6b1ed6eb22424869e373e
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains multiple heuristics indicating it is a malicious redirector, specifically luring users with a 'Coin Master Facebook Hack' theme. The embedded URL, https://netcdn.xyz/app/406889139/coin-master-facebook-hack-game-hack, is flagged as malicious infrastructure. The document body also contains explicit calls to action like 'CLICK HERE TO ACCESS COIN MASTER GENERATOR', reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier clean score 0.0265

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-facebook-hack-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
font_00_sfnt_off00003329.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3329 24508 bytes
SHA-256: 2b76239e83fa9c8142fd3ec77de632f155aff2215d0fe919a0097e5f045691f2
font_01_sfnt_off00006a7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A7D 18040 bytes
SHA-256: 061f1859a06f64f15b62312cec33f4d1ae20d2ec323f296e754baff4e0335bc5