Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0e74648f657b63b…

MALICIOUS

PDF

30.6 KB Created: 2021-07-20 02:18:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7857e543b98899ae1259cf2aad7bf9ee SHA-1: edf3c273be8e39b4047c7a7d18d7290592ebb5ed SHA-256: b0e74648f657b63b052ab4fc4c0db279aff886a8c577d8f253d1ab1177709c12
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a lure for a 'Coin Master Hack' and includes a link to a known malicious redirector. This suggests the document is designed to trick users into visiting malicious websites, likely for further exploitation or malware delivery. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0486

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/406889139/coin-master-hack-without-verification-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000022ed.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x22ED 22760 bytes
SHA-256: 60ef90455c85def0c4d50e2cb26603d3fa432d4475e4de747a15fcc86802e700
font_01_sfnt_off000055d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55D9 18356 bytes
SHA-256: dc73d1475286564dbbcfd7fe1f785306788ee44bec01666c46f1ad38f7aa2791

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