Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ac81ebe67fdfae9…

MALICIOUS

PDF

47.7 KB Created: 2021-06-03 08:24:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a9a23e47e22d7ec9c8162fe8d546d1de SHA-1: 926bb79670f4d4e71d9d82a81f56537ab2b3edd0 SHA-256: 8ac81ebe67fdfae92b2bc318a321c2274867823ab61f4b63962640945e49d609
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a high-confidence heuristic indicating it links to a game hack lure. The embedded URLs, including the primary one at `https://netcdn.online/app/406889139/coin-master-daily-free-spins-blogspot-game-hack`, are likely intended to redirect users to malicious content or phishing pages. Although no scripts were explicitly extracted, the nature of the lure suggests a potential for further malicious activity upon user interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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-daily-free-spins-blogspot-game-hack PDF link annotation
    • https://lib.btkljogja.or.id/repository/free-op-minecraft-servers_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/javascript-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-roblox-girl-clothes_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/fort-wars-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/is-minecraft-free_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/cheat-roblox-phantom-forces-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-spins-2-5-2021_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-games-free_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/haktuts-coin-master-free-spin-link_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000052be.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52BE 24564 bytes
SHA-256: c2665152cd736c6f457363034201695124c04724c113cbc0d5d8fc314da26fde
font_01_sfnt_off000089ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89EE 3444 bytes
SHA-256: 3cea08bf0a9ffb2544f26f95d42fef4b2b47e6983bb5fe86da24ac9929b700f7
font_02_sfnt_off00009615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9615 18812 bytes
SHA-256: 99efaab321cd8bd4771148dad361c5d136942e4fae15d22f58752892cb19a04e

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