Malicious PDF — malware analysis report

Static analysis result for SHA-256 aedd752548eb0235…

MALICIOUS

PDF

35.4 KB Created: 2021-06-22 13:44:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: ad0e39312f71598a0dc6ebb9f088d2b8 SHA-1: a74c2289c5919ab24161a289e7b10661882ff48f SHA-256: aedd752548eb023593b5f6057cb021686520ebbc9c1384c282c115478ef1ae7b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.co/app/406889139/coin-master-free-cards-link-game-hack PDF link annotation
    • http://jarviskeller.co.uk/media/storage/editor/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/azure-mines-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/donwload-free-robux_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/robux-free-page_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/is-it-ilegal-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/coin-master-cheat-apk-free-download_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/how-to-earn-free-stars-on-coin-master_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/how-do-you-be-a-hacker-on-roblox_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/roblox-strucid-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/best-free-survival-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/how-to-get-free-robux-com_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_off000033fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33FA 22948 bytes
SHA-256: 890d3c860e789920143ec8a2de00adcc2a3e58e15d250a19e0a80083e66d1556
font_01_sfnt_off000067c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67C5 18340 bytes
SHA-256: b8fa6a9dfd7b898beef7efa7d7509ded23f04ca787285e81f7d871fc825f65d4

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