Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d95fdd207e698af…

MALICIOUS

PDF

33.7 KB Created: 2021-06-19 00:28:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 07a2c792f3bbc6490255aae4a8e06eec SHA-1: 614de8ef03e9c56f5bd95885b719b84b451dfaaa SHA-256: 2d95fdd207e698af197bfd77d234950ecd5c7427660ac2025c209c1c0e54b0dd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lure users with promises of free generators or game hacks, specifically mentioning Roblox and Coin Master. These links redirect to malicious infrastructure, as indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document's content and embedded URLs strongly suggest a phishing or scam attempt designed to trick users into visiting potentially harmful sites. No scripts were extracted from this sample.

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/free-printable-roblox-invitations-game-hack In PDF document text
    • http://library.ulb.ac.id/repository/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-hack-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/get-2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-free-rpbux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/codes-to-get-free-items-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-free-spins-2-5-2021_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-free-buff-body_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-get-800-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/daily-coin-master_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/minecraft-free-apk_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-roblox-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/roblox-robux-page_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/get-free-cards-coin-master_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/robux-prices_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-pc-hack_GM406889139.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
font_00_sfnt_off00002f82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F82 21392 bytes
SHA-256: 67fc340c1144a1d861f1ceab6a4b56776b0811425d2b50e808441098d5fb0408
font_01_sfnt_off00005e4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E4E 19144 bytes
SHA-256: fa610a54c594a423c32e5995ad41a90d9e5587cd9c702342c870c06fdf6c2b1d

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