Malicious PDF — malware analysis report

Static analysis result for SHA-256 f43839701880d785…

MALICIOUS

PDF

35.7 KB Created: 2021-05-23 05:45:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 35086f36d77e5381a71b6f4f2dbafd0d SHA-1: 170d443b42d19b2eba936cfdbea6d17f5fa5bd26 SHA-256: f43839701880d78556291c6420c0d6133e4233463fc71e86aa7a1702e104d9c9
130 Risk Score

Malware Insights

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

The PDF contains embedded links that are identified as malicious redirectors, specifically leading to a 'free generator / game hack' lure. The document body also contains text and a visual cue suggesting a download, reinforcing the lure. The primary malicious URL is https://netcdn.xyz/app/479516143/minecraft-for-ipad-free-game-hack, which is the main IOC.

Machine Learning

  • Nyx PDF Classifier clean score 0.0718

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/479516143/minecraft-for-ipad-free-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_002_off00003004.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3004 26104 bytes
SHA-256: 0aa881ad761ab1b82a264b2999835ef3775c46122688e8254348e1c0447a39cb
font_01_sfnt_off00006b69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B69 18060 bytes
SHA-256: e7041c736bb680ef9c5afd20c9d1b3857fb6e2c22e525da80690d2251a0ac91e