Malicious PDF — malware analysis report

Static analysis result for SHA-256 6336d876d57d2a5a…

MALICIOUS

PDF

35.9 KB Created: 2021-07-05 15:59:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 76d96bb991d6a680c8580b49dea5713a SHA-1: 27a9bdd372a7b72e82226eefbac354210787eae3 SHA-256: 6336d876d57d2a5a860f86d835a0d792d47c6c20900c9c3b404484356a2723e7
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/406889139/www-coin-master-hack-game-hack PDF link annotation
    • http://stikgiamakassar.ac.id/digilib/repository/coin-master-apk-hack-32_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/coin-master-card-link-free_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/free-robux-injector_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/get-free-coin-master_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/coin-master-20-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/how-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/raindrop-roblox-free_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/www-rubux_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/free-promo-code-for-2-million-robux_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/roblox-gang_GM431946152.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_off0000340f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x340F 23540 bytes
SHA-256: a0d38941aa4c347b6348fe06dc40f81b294b65535073af10c82726cdde383288
font_01_sfnt_off00006949.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6949 18364 bytes
SHA-256: 56fe19c9a365f85bceb031ba69da7f92b878d4dc87b6111ff4a61486c3ab982f

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