Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7169154a5d4f8b3…

MALICIOUS

PDF

34.7 KB Created: 2021-05-11 14:37:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a00320c3dda021ea6bb6b7fe170ee434 SHA-1: e74e923f4a30723d9399cfb05af7085ec504d282 SHA-256: d7169154a5d4f8b3b0d8c60c37390a2ff8f2c8adf438acf7402e6d2af16cccc1
130 Risk Score

Malware Insights

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

The PDF file contains embedded links that redirect to known malicious infrastructure, specifically a 'free generator / game hack' lure. The document body text and heuristics indicate a clear intent to trick the user into clicking the malicious link, likely to download a secondary payload or lead them to a phishing site. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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/hack-spin-coin-master-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_off0000310b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x310B 23788 bytes
SHA-256: da8d581b6ba11797aea6fe7d0f65665390c5d6a9e59ea184404bec33e5532b28
font_01_sfnt_off00006749.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6749 17892 bytes
SHA-256: 69d13a3c8714eb3dc3a02fadd36b14af4b9de34ef00b9c69ce1967a940d24287

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