Malicious PDF — malware analysis report

Static analysis result for SHA-256 70be611f8c10e017…

MALICIOUS

PDF

36.4 KB Created: 2021-06-30 05:11:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 57845a6d8971afe3bc61435f75da56fe SHA-1: 756d3e9f185abacc10aeca693fbee66da43ddacd SHA-256: 70be611f8c10e017cb06214826b5377d40216a43f0147510a2f0b045646d103d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple embedded links that redirect to a known malicious infrastructure, specifically advertising game hacks and free currency. The primary lure is related to 'Roblox' and 'Coin Master' cheats. The document's structure and embedded links suggest it is designed to trick users into visiting malicious sites, likely for further malware delivery or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-get-builders-club-on-roblox-for-free-2021-game-hack In PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/robloxclick-hack_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/v3rmillion-hacks-roblox-ro-ghoul_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-prison-life-20-hack_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/minecraft-free-download-mac-full-version-2021_GM479516143.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/hack-de-roblox-booga-booga_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-website_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/hack-coin-master-2021-pc_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/make-your-own-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/robux-hack-tool-android_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-working_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/rbx-roblox-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-info_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/freespinandcoinblogspotcom-2021-11-coinmasterfreespinandcoinlinkshtml_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-hack-on-jailbreak_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/robux-free-hack-human-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-anti-cheat-speed_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-teleport-hack-in-roblox-jailbreak_GM431946152.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_002_off0000328f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x328F 23404 bytes
SHA-256: 5560298673d2234acdbced7618a8e91210485aeaa1e4b012651ae1e9f9978d87
font_01_sfnt_off00006736.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6736 19756 bytes
SHA-256: df397d3da08b06bdde9169a694a79092bd5814c7264c6736d98df0d02e6457e9

Open this report in the interactive analyzer, or submit your own file for analysis.