Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2962408dc528797…

MALICIOUS

PDF

45.5 KB Created: 2021-05-11 08:10:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 96a90ebed49d3ad1dbfb2b2a9d1ff0ab SHA-1: 9fd3610e036a9e0930c49a89cb8d591f8350f68e SHA-256: b2962408dc528797b2f0b9a243f0b07488e9df0891ab9de443498215d00a46c0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a lure related to game hacks and free currency, indicating a phishing or scam attempt. The primary malicious URL identified is https://netcdn.xyz/app/406889139/how-do-i-get-free-coins-in-coin-master-game-hack, which is likely used to host further malicious content or redirect users to a compromised site. The document's structure and embedded URLs suggest it is designed to trick users into visiting potentially harmful external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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.xyz/app/406889139/how-do-i-get-free-coins-in-coin-master-game-hack PDF link annotation
    • http://library.unissula.ac.id/fk//repository/minecraft-pe_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/free-coin-master-spins-no-human-verification_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/coin-master-spins-gratis_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/cute-free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/collect-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/coinmaster-free-spins-link_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/cheats-coin-master-free-spins-and-news_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/is-coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/how-to-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/free-robux-now_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/minecraft-apk-114_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ab9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AB9 25420 bytes
SHA-256: f63c9dce3f5dc2de6c43e45769d76df39f6af2af97ff425552a2be8b86a2630c
font_01_sfnt_off000084c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84C2 3400 bytes
SHA-256: 4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07
font_02_sfnt_off00008feb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FEB 18044 bytes
SHA-256: a7eb4611cc5e19625cbf9eb325c611c19de71162a0200f7ffd184f09f4ce8017