Malicious PDF — malware analysis report

Static analysis result for SHA-256 54c36d5d550a13de…

MALICIOUS

PDF

44.0 KB Created: 2021-06-04 01:23:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b38d16ab37abdb0aeaaed0d1bbfcc7a4 SHA-1: 23c2dca1731606734e754fa67b77dbcea4670ce0 SHA-256: 54c36d5d550a13de060542356837e46a96be6c535baa11575a51c2a66d677d23
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and free currency, directing users to external URLs such as 'https://netcdn.online/app/406889139/coin-master-spin-hack-game-hack'. While no scripts were directly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt, likely leading to a malicious download or further social engineering. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/406889139/coin-master-spin-hack-game-hack PDF link annotation
    • http://library.patria-artha.ac.id/repository/robux-rewards_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-free-fire_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-free-coins-and-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-free-pin_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-free-spins-daily-1-ga_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-latest-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-hack-apk_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
stream_004_off00004f14.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F14 25912 bytes
SHA-256: 91676ea76b2cf117a8600d649daedfa66ee7552517f5b0d82f82a80139fe85df
font_01_sfnt_off00008a71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A71 17892 bytes
SHA-256: 7f3ff29013eb9f1a81458cbc85dd3db40ecf793c6bb68bdfdc199744a029032c

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