Malicious PDF — malware analysis report

Static analysis result for SHA-256 89172140b77b5693…

MALICIOUS

PDF

36.9 KB Created: 2021-05-17 02:11:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c1f9f7d8b177a7391d3c7a26494c4b27 SHA-1: 7994e4d5ed093efa14419efeaaada99731684e6d SHA-256: 89172140b77b5693dc619e9725a46fa60f3b07c4cb8f4d84bd8a95a5c4cabf6c
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a critical heuristic firing for a malicious redirector link, specifically pointing to a 'free generator / game hack' lure for Minecraft. The embedded URL leads to known malicious infrastructure. While no scripts were explicitly extracted, the PDF structure and the nature of the lure suggest an attempt to redirect the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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-xbox-one-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_off000033d5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33D5 25720 bytes
SHA-256: 60a3df61eaec04a9f103bfe2a0bfa7416d6e3db5a20f46da85c6bd130d98522f
font_01_sfnt_off00006ed6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED6 18304 bytes
SHA-256: c1e2eae75883489521c63816ae5be98a5c25b5d6a823037780a07f542a635aab

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