Malicious PDF — malware analysis report

Static analysis result for SHA-256 3744ef2ffd329186…

MALICIOUS

PDF

37.5 KB Created: 2021-04-28 01:08:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f63542d43f5ec8dbc7d8a44df8be0690 SHA-1: 2c36a387951c80abebc26f2d834d1d11b5592b44 SHA-256: 3744ef2ffd329186928b1fac27dd2af988d8ae12d5e4ea3061f445f8228ec2c4
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a known malicious redirector, disguised as a lure for game hacks and generators. The heuristic firings indicate that the document is designed to lead the user to malicious infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to exploit user interaction for malicious purposes.

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/431946152/anime-roblox-roblox-face-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_off000036c7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x36C7 25256 bytes
SHA-256: 787991e174d0ef72966c186b695722b5b931d30865ef0fb62852e8d30cb6fd16
font_01_sfnt_off000070c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70C3 18556 bytes
SHA-256: fdbf6b305c89ba7f81d511584a30727d01ec38e50884b3dbdc385e169e87ce07

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