Malicious PDF — malware analysis report

Static analysis result for SHA-256 c057973e423b12a6…

MALICIOUS

PDF

33.6 KB Created: 2021-07-05 02:49:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c6c36e5eff0eb8b77fb5e1d1e3b6d74b SHA-1: 1676237cc9b8a83de012c91374c0975563b9ec48 SHA-256: c057973e423b12a6ab2456f2bd6cfa391d9d69721a50c3da6dea54798757983b
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/free-robux-no-verification-no-download-game-hack PDF link annotation
    • http://perpus.unpam.ac.id/repository/free-roblox-aimbot_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-2021-robux-code_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-roblox-clothes-girl_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-hack-ios-without-verification_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/cheat-roblox-free_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-hack-iosgods_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-fun-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/roblox-hack-gui_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/minecraft-tiktok-hacks_GM479516143.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_off00002d58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D58 21724 bytes
SHA-256: 3ce2dde83f3f2bb7143781c88dc79833f26af362502c4debb1ab0dd000fa3468
font_01_sfnt_off00005c79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C79 19652 bytes
SHA-256: 8dba42de70404ddf4ce7a70a40047468e67895e17bebeb66015d1708da090460

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