Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe0b5aac4d82bef5…

MALICIOUS

PDF

42.7 KB Created: 2021-05-17 19:09:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7fb511d20dd574f96f58f59458fb7f8b SHA-1: 47fe4c0cbfb9a01bef7c1de07b05ae22a2d1f97d SHA-256: fe0b5aac4d82bef506968a3ba01ded12a91ec15d69633a48e630c3299bcb82a9
130 Risk Score

Malware Insights

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

This PDF document employs a fake CAPTCHA lure to trick users into clicking a link that promises game hacks. The document contains numerous URLs pointing to sites offering free game currency or hacks, suggesting a phishing or scam campaign. While no scripts were directly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 6

  • 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.
  • 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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/431946152/how-do-u-hack-roblox-game-hack PDF link annotation
    • http://tileworld.com.au/files/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-card-collection-hack_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/is-free-robux-real_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-free-spins-link-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/robux-free-online_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-freebies_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-hack-online-download_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/legit-coin-master-hack-october-2021_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/mcpe-client_GM479516143.pdfIn PDF document text
    • http://tileworld.com.au/files/robux-com-free_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/best-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-tiradas-gratis-link_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/roblox-hackers-list_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/ultimate-free-spins-coin-master_GM406889139.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
stream_003_off00004a47.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A47 24560 bytes
SHA-256: 3bf3b4b32dcf05f842256c6baea4a33d70c1b248336265e056693edc89749a0a
font_01_sfnt_off00008311.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8311 18700 bytes
SHA-256: 24715886d6b8435fb8a33d258b866203ee2974827a311e3ab6dcb36e4a196b9f

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