Malicious PDF — malware analysis report

Static analysis result for SHA-256 c10a511ae27d8d32…

MALICIOUS

PDF

34.9 KB Created: 2021-06-27 23:07:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 8aa2115b52da3517899afcb8ed9c8978 SHA-1: 3d1530f0681a0afc8939959ecce10d4e59ddbd11 SHA-256: c10a511ae27d8d323eae616cfc3e91619885a88f68191753e2f4b08d1fcc1821
82 Risk Score

Malware Insights

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

The PDF document contains multiple links to websites offering game hacks and free in-game currency, such as 'roblox-free-game-hack'. This lure is designed to trick users into clicking malicious links, likely leading to malware downloads or phishing pages. The ML classifier also strongly indicated maliciousness.

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.co/app/431946152/project-zero-roblox-free-game-hack PDF link annotation
    • http://pustaka.fti.unand.ac.id//repository/minecraft-jar-free_GM479516143.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/roblox-source_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/synapse-roblox-free_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-hack-here_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/how-to-get-free-obc-and-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-33-hack-version-download_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/fb-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-robux-and-you-dont-half-to-verify_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-minecraft-server-hosting-with-plugins_GM479516143.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/minecraft-windows-10-edition-free-download_GM479516143.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/mobile-hacks-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-jackpot-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/roblox-free-vip-server_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/how-do-you-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-hack-generator-tool_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/my-oldest-roblox-account-got-hacked_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/hack-para-atravesar-paredes-en-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-robux-generator-that-really-works-that-works-right-away_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ef7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF7 22968 bytes
SHA-256: 2ead059376aa763fe10147eb5640389f10d572105d5875eb9146191662721fac
font_01_sfnt_off000062d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D4 19192 bytes
SHA-256: 68b07460389586f783d04a81c015d6a861968413244663b995ae946e138fda67

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