Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7e2fdb1dc22e76d…

MALICIOUS

PDF

46.0 KB Created: 2021-06-03 05:31:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 7f0ff67f0517cd9758bb61927a098e76 SHA-1: ca9ac4cbf7a764e4bf5d994a9adf0d764dbd4869 SHA-256: f7e2fdb1dc22e76d23eb465de40d86dca98bf9004e3754cccf5cfc38084e3aca
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free spins, directing users to a suspicious URL. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs further supports a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the document structure and embedded URLs are sufficient to infer a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.online/app/406889139/coin-master-free-spins-link-today-instagram-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info/repository/free-roblox-clothes-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/freerobuxhack-us_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/200-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/moonactive-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/hack-xp-net-generators-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-spin-27_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-spins-link-cheat_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coins-master-hacks_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-map_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/is-there-a-way-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-hacks-android_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-daily-free-spins-link-today-2021_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
stream_004_off000054e1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x54E1 25644 bytes
SHA-256: 6ff1889f610e5213758d9bda33c66bd3d7161884af05090bad0858c559600f61
font_01_sfnt_off00008f53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F53 18960 bytes
SHA-256: c3cae131f36bdfe9c813bd150295f39ca0ceeabf3546a2df254cc03f93d9c6e3

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