Malicious PDF — malware analysis report

Static analysis result for SHA-256 f98e769448aa0af4…

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 17:48:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 773adfc560c5e7b7fcf73bd23a41608d SHA-1: 957df84f4f21729f119319cd32cf6ce66f729bcc SHA-256: f98e769448aa0af498dabe2b29acc502454aac1220bf4c05ff0bfdfc5a0d9fce
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/how-to-get-free-roebucks-in-roblox-game-hack PDF link annotation
    • http://digilib.unbari.ac.id/repository/daily-free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/hacks-on-getting-more-diomonds-in-royale-high-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-free-promo-codes-not-expired_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-naruto-final-bond-cheat-level-up_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-redem-code-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/good-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/cch-hack-skin-trong-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/krnl-download_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-hack-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-cheat-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/cute-free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/hacks-for-kat-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-phantom-forces-coins-hack-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-roblox-card-codes-no-download_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-app_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-girl-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/new-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F97 22728 bytes
SHA-256: 326fb42bbc9d8e2c05f52aea818e3f3e4a6550991ef416612874f1ce5b79d68a
font_01_sfnt_off00006218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6218 19228 bytes
SHA-256: 37f79c5bf97eb03d5d789a445bd386845bdf6e165897bd76903df78461253807

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