Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ddb14607dba7c62…

MALICIOUS

PDF

34.8 KB Created: 2021-07-05 01:24:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 21fbcff7956f0e133d12a15573072788 SHA-1: b8edc2021c880befd2d781658e0ae79e5ede1a95 SHA-256: 2ddb14607dba7c62dc9aa7cc407276baeed59c3dcd0c5c0110ee58551a27b0d7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks or generators. The primary lure is a link to 'can-you-get-minecraft-windows-10-for-free-game-hack', which is hosted on a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to lead the user to a malicious site, likely for further exploitation 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.tw/app/479516143/can-you-get-minecraft-windows-10-for-free-game-hack In PDF document text
    • http://lib.icbc-indonesia.org//repository/how-to-make-a-roblox-group-for-free_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/www-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/como-tener-hacks-de-armas-en-roblox_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/boku-no-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-spins-on-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/redeem-roblox-virtual-item-hack_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/how-to-get-free-roblox-codes-2021_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/fnaf-roblox-fread-bear_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/fastest-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-domain-for-minecraft-server_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/easy-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/roblox-hacker-beta_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/roblox-hack-script-pastebin-2021_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/how-to-get-free-roblox_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
font_00_sfnt_off0000318a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x318A 22328 bytes
SHA-256: 2a01bfd09f5a5e67ceb7ad332feae9e12394a6766d7aaac46e9e98bd8382e20b
font_01_sfnt_off000062be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62BE 19116 bytes
SHA-256: e8039433bf59574774ab6d1b3300433467f64885375fcf650bf661ef17b6bd80

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