Malicious PDF — malware analysis report

Static analysis result for SHA-256 20cb96fbfd34eebf…

MALICIOUS

PDF

44.8 KB Created: 2021-05-19 15:41:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 80ccef2dbf8a40663f6d991d14b045f1 SHA-1: 10f57889fcaa7bf1c36af87290f96bd982ba8b89 SHA-256: 20cb96fbfd34eebf3190fe8f23cb34e72878e9761252fa53dafbe12ceb9fde7f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'free generator / game hack' which redirects to a suspicious URL. This indicates a social engineering tactic to trick users into visiting a potentially malicious website. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to lead users to a malicious download or exploit site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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.xyz/app/1094591345/pokemon-go-free-yveltal-game-hack PDF link annotation
    • http://www.lowrange4x4.co.za/images/roblox-free-skin_GM431946152.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/free-spin-coin-master-instagram_GM406889139.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/freespincoin-masterlinkdownload_GM406889139.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/coin-master-fun-free-spins_GM406889139.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/official-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/gain-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000046bf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46BF 23980 bytes
SHA-256: c7c1edaaea14c7fe0d422fe2c4f893effb94027bca6520bc73ebcfc661b4f7a9
font_01_sfnt_off00007d00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D00 4292 bytes
SHA-256: 0ebbcf3565f5b84326abbdfe7bd38e3cf3c68bfaf29f1b0b5e9a9e0d0a885038
font_02_sfnt_off00008c0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C0C 18524 bytes
SHA-256: 98ace7fa1c4ac8eee3aeff44061cbd48622df43618d3bea60f684d8ca4852009

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