Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6bc19d558a9f2e3…

MALICIOUS

PDF

36.3 KB Created: 2021-07-09 01:50:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 47f00492f143af880d400cc8aab6db95 SHA-1: 0947b1aa349f45c775a28d8a10afdc0964ce3a97 SHA-256: f6bc19d558a9f2e353e66024d6e731b0897ccada711a779a45724ec73f570fcc
160 Risk Score

Malware Insights

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

The PDF document contains multiple embedded links, including one identified as a malicious redirector. The primary lure appears to be related to 'game hacks' and 'free generators', specifically mentioning Roblox. The document body and heuristics indicate a redirection to malicious infrastructure designed to trick users into downloading potentially harmful content or engaging in scams. No scripts were extracted from this sample, but the presence of malicious links and the ML classifier output strongly suggest a malicious intent.

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.tw/app/431946152/como-conseguir-roblox-badges-hack-game-hack In PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-hack-pokemon-brick-bronze-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/minecraft-free-download-mobile_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-play-minecraft-with-friends-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-robux-games-on-roblox-that-work_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/fbchampion-com_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/bloxxerz-co-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-earn-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-legendary-football-vip-server-free-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/eas-robux-free_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-dominus-roblox-javascript_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/easy-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-codes-site_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coinmaster_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-finish-obby_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-hack-roblox-for-robux-script_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-codes_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000034b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34B6 23096 bytes
SHA-256: 522803cdcdffc84bccaf26eca494d45bf1a10854bced2914a5522f1f80e34543
font_01_sfnt_off00006851.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6851 19352 bytes
SHA-256: 3f1e5dc6fee209861ad4d9e4d0e0c62cb75e002684af29b7fa42144acd09e17e

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