Malicious PDF — malware analysis report

Static analysis result for SHA-256 12223ca77c57225f…

MALICIOUS

PDF

33.9 KB Created: 2021-07-06 13:06:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 4e50b34cb258715463883121a37a643f SHA-1: e0146e730296ba79c435ca8174b0d18b70847a42 SHA-256: 12223ca77c57225fe6c581311d8da4d1626921a514857a0ba2a40fed727087a9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-risk heuristic firing for linking to a 'free generator / game hack' redirector, specifically http://netcdn.tw/app/479516143/how-to-make-a-minecraft-server-for-free-java-game-hack. The document body also contains this URL and other similar lures related to game hacks and cheats. This suggests a social engineering tactic to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.tw/app/479516143/how-to-make-a-minecraft-server-for-free-java-game-hack PDF link annotation
    • http://library.umla.ac.id//repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/roblox-promo-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-real-hack_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/hack-para-obtener-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/autospin-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/moon-active_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/hack-my-game-xyz-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-roblox-catalog-items-2021_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/easy-roblox-today_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-free-download-for-pc_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/pubg-uc-or-bp_GM1330123889.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-hack-apk-2021-download_GM406889139.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_off00002fb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB1 22280 bytes
SHA-256: 00f23ba7f38dbdbf991fc50a9a4c9e7da464742b36c4026dcb7ced7633ff5cc2
font_01_sfnt_off000060b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B5 18612 bytes
SHA-256: 72eee0763f35a52e2643d2996ff671f9a9f03ad894d8023308a2820f1b3dae8e

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