Malicious PDF — malware analysis report

Static analysis result for SHA-256 30d31e9ee0b97cc4…

MALICIOUS

PDF

44.6 KB Created: 2021-06-07 15:37:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9dd7abf4ce6af3dbe2d9cc98868264ab SHA-1: d1eac4c376b951ed6e981a67e7a1679df8e1540c SHA-256: 30d31e9ee0b97cc474c3be15d429fdb6a96abb90fdd4e4d134400b62d47c6336
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising free game generators and hacks. The document body and heuristics indicate a lure to download or access content from these malicious URLs. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/free-robux-generator-cheat-game-hack In PDF document text
    • http://inextpresident.com/images/pokemon-go-for-free-download_GM1094591345.pdfIn PDF document text
    • http://inextpresident.com/images/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://inextpresident.com/images/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/www-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://inextpresident.com/images/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
    • http://inextpresident.com/images/daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://inextpresident.com/images/archery-master-3d-coins-hack_GM406889139.pdfIn PDF document text
    • http://inextpresident.com/images/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • http://inextpresident.com/images/pokemon-go-free-pokeballs-2021_GM1094591345.pdfIn PDF document text
    • http://inextpresident.com/images/moon-active_GM406889139.pdfIn PDF document text
    • http://inextpresident.com/images/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://inextpresident.com/images/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/free-robux-co_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/minecraft-apk-114-4_GM479516143.pdfIn PDF document text
    • http://inextpresident.com/images/coin-master-hack-apk-android-1_GM406889139.pdfIn PDF document text
    • http://inextpresident.com/images/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://inextpresident.com/images/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • http://inextpresident.com/images/roblox-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/minecraft-free-ios-no-verification_GM479516143.pdfIn 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_004_off00004f9b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F9B 25628 bytes
SHA-256: 342a2d44b928ab575e893cc819c9f028c80d96cf29906d33bd078e5e2a99bfaf
font_01_sfnt_off00008b23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B23 18512 bytes
SHA-256: 9d69a53bface53a8cb5873c9abdb588cfe3244316280caa9535d145d928f160c

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