Malicious PDF — malware analysis report

Static analysis result for SHA-256 23a3f538b3c447d3…

MALICIOUS

PDF

34.8 KB Created: 2021-07-03 14:19:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 509b6bfb60fc2dd5947ba3f3c01df42f SHA-1: abc30ba7704168d5d90a4d3dd1ee020453942087 SHA-256: 23a3f538b3c447d3980a2396335a3d232c804d78b1db02a3ae881b6f7a6b2819
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains multiple embedded links that lure users with promises of free game hacks and currency. The primary link, http://netcdn.tw/app/431946152/no-scam-free-robux-game-hack, is identified as a high-risk redirector. The document's content and structure strongly suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

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/no-scam-free-robux-game-hack PDF link annotation
    • http://balitgetas.co.id/pustaka/repository/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-android_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/hack-para-coin-master-sin-verification_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/hack-roblox-robux-apk_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-free-spin-and-trading_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/com-roblox_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-games-to-play-roblox_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-free-spin-redeem-code_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-minifigure-codes-on-roblox_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-spins-free-2021_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-coin-app_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/minecraft-pe-hack-client-ios_GM479516143.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-pet-snacks-coin-master_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
font_00_sfnt_off00003241.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3241 22180 bytes
SHA-256: 2a4330ffd1025cc207310328263e0e8762a9b0e2112d2fb53ca7c7ceb1778e82
font_01_sfnt_off00006336.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6336 18976 bytes
SHA-256: 5f7e0103c70b1f60985bb62ced08c37b8d4368b496e7598f685b49347f4f33a0

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