Malicious PDF — malware analysis report

Static analysis result for SHA-256 7db2573e9e41af32…

MALICIOUS

PDF

33.9 KB Created: 2021-06-28 06:31:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 44ab6b2930542dec23c97415e8920eaa SHA-1: c94fa46d3cf8f498f347121c5998b994abf9b89a SHA-256: 7db2573e9e41af320f9513f72d1e724e083770f1760935bbdad0d594216eb121
82 Risk Score

Malware Insights

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

The PDF document contains a high-confidence heuristic indicating it links to a game hack redirector, specifically targeting Roblox and Coin Master. The document body explicitly mentions 'Roblox Cheat Engine Download 2021' and includes a call to action to download, directing users to the IOC URL. This suggests a phishing or scam attempt to trick users into visiting a potentially malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/roblox-cheat-engine-download-2021-game-hack PDF link annotation
    • http://www.elibrary.perludem.org/repository/how-do-i-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/coin-master-cards-free_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/get-roebucks-com_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/wwwhaktutsin-2021-08-coinmasterfreespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/murder-mystorys-roblox-knife-hack_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-redeem-code-free_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-tiktok-accounts_GM835599320.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/wurst-commands_GM479516143.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/microsoft-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-roblox-gfx_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/roblox-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/cara-cheat-roblox-di-android_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/roblox-reedeem-virtual-codes-free-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/catalog-roblox-free_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-free-spins-5-10-2021_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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_off00002b08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B08 22528 bytes
SHA-256: a8dd2a0519df2f82f4870c0ccbbb0f44768eb9baebab94416fa476a855d8c9a9
font_01_sfnt_off00005d4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D4C 19784 bytes
SHA-256: 7348df66ac494b6f99d01ac9e27c20dc7cf965937dc613120f08c9d4515ff767

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