Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dc5698d04bfc3ba…

MALICIOUS

PDF

33.9 KB Created: 2021-06-30 22:05:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: d487a7ebd85c36556f8f9f8276d53de6 SHA-1: aa0077104fe78cd4170319ce8099a1e8cc7b6ab2 SHA-256: 0dc5698d04bfc3bae6eb735241397c3cbff6a8eff270a8b8849507eb61475dd4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/406889139/coin-master-free-stuff-game-hack PDF link annotation
    • http://tileworld.com.au/files/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/cheats-that-make-you-get-staff-on-roblox_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-pro-hack_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/best-free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/vip-roblox-free_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.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/cm-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/pokemon-go-free-bonus-box_GM1094591345.pdfIn PDF document text
    • http://tileworld.com.au/files/free-t-shirt-roblox_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_off00002fb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB8 22680 bytes
SHA-256: 306a25beb33e548ff629f3b2e6025a15c1c4a71c6e0552881eab82134ef1369e
font_01_sfnt_off00006260.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6260 18140 bytes
SHA-256: ffbe3bd5e7ca89ebd9867be994f107e79cc056fa0179a9297eb86efc4e13e545

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