Malicious PDF — malware analysis report

Static analysis result for SHA-256 e19001f39f6a75d3…

MALICIOUS

PDF

34.2 KB Created: 2021-07-09 05:54:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 4e693829ae1358af7ab4b9c096cf5db6 SHA-1: 16464e6cbd7a5b47669b24f5418e9d8df300a704 SHA-256: e19001f39f6a75d30a4a51afd7859ad24b371106cd0029ffe0e57b96e58f5dd6
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.tw/app/431946152/robux-sites-game-hack PDF link annotation
    • https://digilib.stimlog.ac.id/repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-robux-without-downloading-apps-for-ios_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-com-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-in-5-seconds_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/getrobux-come_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/dragon-ball-galaxy-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-minecraft-packs_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-without-human-verification-on-phone_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-hacker-el-misterio_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-game-hacking-tricks_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-gameswithout-password_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-and-catalog_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-clothes-roblox-catalog_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-spins-on-coin-master-2021-ios_GM406889139.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_off00002f42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F42 22284 bytes
SHA-256: 67116f62d581361461a79aadc89a529e915d1e29ef06d44b40a7d637699cdd22
font_01_sfnt_off00006120.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6120 18776 bytes
SHA-256: d068806fa23401092b8be1d0e6a2535028dc06fd77d3a6b1ec61f70a688e2ec8

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