Malicious PDF — malware analysis report

Static analysis result for SHA-256 00f9e03e89e70293…

MALICIOUS

PDF

44.6 KB Created: 2021-06-03 19:09:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: ff7c047d24a6089a3bc3e55db4728f98 SHA-1: d4e354398db1f5368dc3a726ebec837f3cfa555f SHA-256: 00f9e03e89e70293e9d48335c1c10c7a8c87b23e62767d4138e83cc232c5609c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a prominent link disguised as a download button, luring the user to a website offering a 'Coin Master Hack Mod Apk'. This heuristic, combined with the ML classifier flagging the PDF as malicious, strongly suggests a social engineering attack aimed at tricking users into downloading potentially unwanted or malicious software. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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-hack-mod-apk-2021-download-game-hack PDF link annotation
    • http://www.library.gkigadingserpong.org/repository/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-robux-real_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/blogspot-coin-master-free-spins_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_off0000514c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x514C 24740 bytes
SHA-256: 3ffa7ae3bab416999df911bc060f4573026b67419ec999b1ed38fa1c6407c1e5
font_01_sfnt_off000089d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89D5 18876 bytes
SHA-256: d0ae2a6335f6e1d1dcb08c16f477cde67ff9a40c73b70c4521b3987adefa71de

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