Malicious PDF — malware analysis report

Static analysis result for SHA-256 65e49bb4a5d77b9f…

MALICIOUS

PDF

45.2 KB Created: 2021-06-11 08:40:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 9f703d1a50f6cc1634ef5ac9d76aac1c SHA-1: c24861b80be1e4d673aff32125b30ced8536203d SHA-256: 65e49bb4a5d77b9fa15e114e016b3a3336f6927ac1b5e13137ac8356aae0cd8c
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 0.9864

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.tw/app/431946152/how-to-cheat-roblox-jailbreak-money-game-hack PDF link annotation
    • http://jarviskeller.co.uk/media/storage/editor/files/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/202100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/coin-master-33-hack-version-download_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-roblox-wings_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/coin-master-free-online_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/pokemon-go-free-promo-codes-2021_GM1094591345.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/hack-download_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/hack-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/xray-hack_GM479516143.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/tiktok-followers-for-free_GM835599320.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/is-minecraft-free_GM479516143.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
stream_004_off0000529d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x529D 24616 bytes
SHA-256: 987ba2168f721733adbd2f72d9bae169151082b4c0c5ce678d98dc481a1e1c89
font_01_sfnt_off00008b41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B41 19276 bytes
SHA-256: f2fd7c4e0ee02cd8080ad2f009f7ce80a75668f5e63494739a9d28aef3a1127f

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