Malicious PDF — malware analysis report

Static analysis result for SHA-256 12d9864759b9eff6…

MALICIOUS

PDF

35.6 KB Created: 2021-05-19 22:32:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ff8cdd7fa6e7192f551ecbcf3b3cefc0 SHA-1: 26886ebcb0630d7aef4869b5adc8081af70188e4 SHA-256: 12d9864759b9eff66c6a940ed859df9d6b313dc12e013883b2a8c256cb07b6f2
130 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to malicious infrastructure. The document body includes a call-to-action phrase and a URL that aligns with this lure. While no scripts were extracted, the embedded URL is the primary indicator of malicious intent, likely leading to a further stage of compromise.

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/1094591345/pokeballs-in-pokemon-go-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_003_off00003210.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3210 24556 bytes
SHA-256: 9bcb01efe002f40234415017f437061d2997454c50b71e47ca878608fe8638fc
font_01_sfnt_off000069cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69CD 18300 bytes
SHA-256: bf765c60981a47c52ee5759dc0198cbf893307803f4638445de4542e983478eb

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