Malicious PDF — malware analysis report

Static analysis result for SHA-256 64edbef7c4f25037…

MALICIOUS

PDF

34.2 KB Created: 2021-06-20 16:43:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 179209ce27e7a63e7dae0d5d8615db8b SHA-1: 88ea6af33b16cbac59d654572a8461cd95da0c80 SHA-256: 64edbef7c4f250376f64035ba24def160e611b18d6d19264faf1b94169423509
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-spin-and-coins-links-game-hack PDF link annotation
    • https://limebug.com/media/storage/editor/files/coin-master-cheats-free_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/get-robux_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/hack-coin-master-site-rssingcom_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/rewardex-robux_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-roblox-app_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/admin-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/today-free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-roblox-girl-clothes_GM431946152.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_off00002f9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F9D 22628 bytes
SHA-256: 5e12ae804bd71258e943e96cf11380c475daa116992ea55d684fc5fcffac97aa
font_01_sfnt_off00006233.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6233 18520 bytes
SHA-256: d69a0a2edd95f9e38b96bcbf992a69ddda142703a71f9cfee81eaec1a075863f

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