Malicious PDF — malware analysis report

Static analysis result for SHA-256 b03102eab3231ee1…

MALICIOUS

PDF

33.4 KB Created: 2021-07-04 11:55:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 56d1d401f84188cca929b4875d40eb90 SHA-1: d5a05d9231189b609a3dffefb6947b355f7bdfe3 SHA-256: b03102eab3231ee1e20442b2601b0e6456921ff28bde91b899d9cd43d350ee48
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 0.9824

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.tw/app/431946152/free-robux-generator-game-hack PDF link annotation
    • http://lib.mappifhui.org/repository/cheat-codes-for-roblox-legends-of-speed_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/pinkant-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-roblox-john_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/hack-na-robux-bez-podawania-numeru-telefonu_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/mcpe-master-hack-unlimited-coins-latest-version_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-bee-swarm-simulator-script-hack_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-lumber-tycoon-2-dll-hack_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/best-anime-roblox-face-free_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-how-to-get-free-items-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/hacks-on-robloxs_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/hack-para-roblox-dragon-ball-rage-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-t-shirt-design-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-apocalypse-rising-speed-hack-2021_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_off00002b18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B18 22972 bytes
SHA-256: c258c5c87a69bdadab165f080dfb5d4a50c7757cede50feb47c5b920ba954ada
font_01_sfnt_off00005e5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E5D 18820 bytes
SHA-256: da2f915db23b41a878f83961178ff4e79d82bfec54ff52f4ca014625624765bc

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