Malicious PDF — malware analysis report

Static analysis result for SHA-256 1deb17738389020e…

MALICIOUS

PDF

35.6 KB Created: 2021-06-20 06:32:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b6c7ad7dd34dd621818391e76008b2b7 SHA-1: 156188e8bc8b55eb353879a7eb621cf3f180dd95 SHA-256: 1deb17738389020ecc4c3e451c12c9b00b37f61c01fa03f68891f43d749a1be9
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/431946152/hacker-tool-for-roblox-download-game-hack PDF link annotation
    • http://library.stembi.ac.id/repository/roblox-hack-stats_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-to-get-free-stuff-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-to-get-free-bc-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-to-get-free-cars-in-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/foxy-hacks-com-roblox_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-robux-2021-download_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/wwwrobux-cheat-us-umlited_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-tablet-cheats_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-muscle-simulator-cheat-codes_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-minecraft-server-hosting-with-plugins_GM479516143.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-pet-simulator-free-game-passes_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/https-wwwrobloxcom-catalog-keyword-freecategory-1direction-2_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/https-roblox-free-robux-web-wordpress-com_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-to-create-your-own-roblox-hack-script_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/to-cash-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off00003232.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3232 22892 bytes
SHA-256: 7739908cf72ae8f3d2d8d2c3c40b9c013cbe9ae9b79934bf4ab8fdf123c4243b
font_01_sfnt_off00006578.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6578 19328 bytes
SHA-256: fb5e4d324c945bd305bfbc5a3f6b6d0b82d7441eaa32cccf16f7ca7b38a20b2b

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