Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a12dd3e9265831a…

MALICIOUS

PDF

35.2 KB Created: 2021-06-24 23:57:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: cace3e443639912d36c654a65898ad49 SHA-1: c5bc29855053038428dd605e187196cc449d394c SHA-256: 7a12dd3e9265831aa7db6681fb71b5fa4485b06d43254c1a9e655821e81ceb78
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to 'netcdn.co' which is flagged as a lure for game hacks. The document body and heuristics indicate a deceptive lure to trick users into clicking these links. While no scripts were directly extracted, the PDF structure and embedded URLs suggest a phishing or malware distribution attempt.

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/roblox-hack-khol-admin-house-game-hack PDF link annotation
    • http://perpustakaan.poltekkespangkalpinang.ac.id/repository/free-admin-on-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id//repository/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id//repository/free-roblox-toy-codes-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id//repository/how-to-get-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id//repository/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id/repository/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id/repository/get-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id//repository/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id//repository/coin-master-hack-2021-without-human-verification_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id/repository/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id/repository/free-roblox-robux-generator-2021-without-human-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id//repository/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id/repository/robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id/repository/is-friending-a-roblox-hacker-bad_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id//repository/coin-master-daily-free-spins-link-today-2021-free_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id/repository/free-naruto-headband-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id//repository/rbx-sites_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id/repository/coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id/repository/easy-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekkespangkalpinang.ac.id/repository/how-to-hack-a-roblox-account-2021_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_off0000318a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x318A 22496 bytes
SHA-256: 09f3ca69c5cbb0a5dd5da66b3f22c5891ae4c38be2c2e359ebf4d8aa9dbdb97c
font_01_sfnt_off00006371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6371 19516 bytes
SHA-256: ed209614a03bbfe71997d488f60b5c8263a9f9dce656cc2600f048eb7aca2047

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