Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebe59c49798a7594…

MALICIOUS

PDF

33.9 KB Created: 2021-06-18 21:48:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: a415ef1ec6cd476ec36d9fa39f33830f SHA-1: d8625431583bdaecfdb42ac53373ae96f72e472a SHA-256: ebe59c49798a7594d1cca6a04408e955ce671d4dbc8161c921397f1c1178e15e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game currency and hacks to entice users. It contains multiple links to redirector infrastructure, including the primary URL http://netcdn.co/app/431946152/real-free-robux-hack-game-hack, which is flagged as malicious. The document body and heuristics indicate a social engineering tactic to drive users to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/431946152/real-free-robux-hack-game-hack In PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/coin-master-free-spin-and-coin-link-2021-today_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/roblox-svg-free_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/robux-com-free_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/free-coins_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/play-coin-master-online-free_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/coin-master-gold-cards-hack-2021_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_off00002e9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E9F 22128 bytes
SHA-256: d2f9d64d1dab1d5aeb9c78e5fb9db5395825b2937717321f29000f702e366699
font_01_sfnt_off00005fea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FEA 18960 bytes
SHA-256: 9bcf4ad32d0855e960a49c60036cf78b10e07003fe576123d63e8e168aac243c

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