Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc62408005d02648…

MALICIOUS

PDF

33.3 KB Created: 2021-06-17 16:50:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a7e8f0dba043f33f2a5cb1df5e439dff SHA-1: dbb4e24d835b317f9deb0b1f988b66038e5a8f0a SHA-256: cc62408005d02648870fd0aed9a492571ce17c16dde0f255d189bc568b19e1eb
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/how-to-do-hacks-on-roblox-game-hack PDF link annotation
    • http://digilib.unbari.ac.id/repository/pokemon-go-free-daily-remote-pass_GM1094591345.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-password-hacker_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-hack-mod-apk-android-1_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-free-rewards-link_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/cite-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/robux-get-com_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-hacks-on-lumber-tycoon-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/pokemon-go-free-100-iv-coordinates_GM1094591345.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/android-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-hackers-list_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/overhaul-roblox-free-shop_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-admin-free-spins_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/simplysarc_GM479516143.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_off00002f32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F32 21248 bytes
SHA-256: ed870fddac41a958e18464ce7e07e8f638273f05a204ac92b21a680600af5377
font_01_sfnt_off00005d8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D8F 18800 bytes
SHA-256: 8e3a3e88c641dc226d16bbac3510fac5ec41ebccf611ee77a411769776465661

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