Malicious PDF — malware analysis report

Static analysis result for SHA-256 730d9e4a7099bef6…

MALICIOUS

PDF

34.9 KB Created: 2021-07-06 09:30:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 7d01fcdb0817a0bf2d1603712019730a SHA-1: ac0a4135a7f0d7d1d06a7fd94b297f6ce11a0917 SHA-256: 730d9e4a7099bef6fb40c70c85dc51e8945d3b37c3ef5b252c27d7155eccdea1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically advertising game hacks and free spins. The primary lure URL is http://netcdn.tw/app/406889139/blogger-coin-master-free-spins-game-hack. While no scripts were extracted, the document's structure and embedded links strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

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.tw/app/406889139/blogger-coin-master-free-spins-game-hack In PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/free-minecraft-skin-creator_GM479516143.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/coin-master-daily-bonus_GM406889139.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/doctor-louie-roblox_GM431946152.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/roblox-risky-strats-hack_GM431946152.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/coin-master-game-hacks_GM406889139.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/roblox-dragon-ball-ragw-hack_GM431946152.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/roblox-hack-btools-2021_GM431946152.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/is-roblox-free-to-download_GM431946152.pdfIn PDF document text
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/free-robux-hacks-no-verification_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_off000031a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31A4 23200 bytes
SHA-256: 9526d36aa0aa77c6bdfc7827efd6504927d045488918ace2d011cd6951da31a3
font_01_sfnt_off00006560.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6560 18464 bytes
SHA-256: f296297f24d16be59dfb68755b8dea07f16f55f25f89e3d3dbe8c2451ee9dbcd

Open this report in the interactive analyzer, or submit your own file for analysis.