Malicious PDF — malware analysis report

Static analysis result for SHA-256 115e08914ecaaaa1…

MALICIOUS

PDF

44.4 KB Created: 2021-06-03 08:47:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 72869ca4db76886e3777e3e37481897e SHA-1: 00aaccd88d896c965a82d9b2a2414bbaae84a891 SHA-256: 115e08914ecaaaa1cea5c7d2673c0b329f28ea11a3460178d59362b61556b9d4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with the document. It also embeds external URIs pointing to potentially malicious content, such as 'https://netcdn.online/app/431946152/free-stuff-on-roblox-2021-game-hack'. The presence of these elements strongly suggests an attempt to deliver a second-stage payload or redirect the user to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/431946152/free-stuff-on-roblox-2021-game-hack PDF link annotation
    • http://tileworld.com.au/files/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/free-game-pack-coin-master_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/minecraft-free-download-mobile_GM479516143.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-map_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-hack-lost-world-2021_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/roblox-redeem_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-on-facebook_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/easypoints-gg-roblox_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/huskybuckscom-free-robux_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_off000050ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50EE 24808 bytes
SHA-256: f97c78eace2a5bbe44a220e0fc405a4d64dfe7c5ccd28388867982b79feb565c
font_01_sfnt_off000089fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89FC 18596 bytes
SHA-256: dd7f1f49ea688e483c85b591df3fc0b80ab38107c808a39dd1edea183ef83d67

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