Malicious PDF — malware analysis report

Static analysis result for SHA-256 794946b5cefc5381…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 16:57:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 27f2918db4feeb8e84c0a2d06eb39c6f SHA-1: e4a410dbe806e6d5074b9d2fecc12e23dab09188 SHA-256: 794946b5cefc53817b2647f7ba9395045a4b3be47d0c66970395617f4d76cce9
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.tw/app/431946152/www-roblox-com-free-robux-game-hack PDF link annotation
    • http://lib.mappifhui.org/repository/10-easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-generator-no-nothing_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/speed-hack-roblox-wild-revolvers-download_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/synapse-roblox-free-download_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/minecraft-java-free-account_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-free-roblox-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/world-conquest-free-siterobloxcomgames_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/como-hackear-super-dragon-ball-heroes-en-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-roblox-accounts-with-robux-v3rmillion_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-without-human-verification-or-survey-or-offers-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-games-with-free-radio_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-hacked-arcaded-games_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-app-cheat-engine_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_off00003071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3071 22224 bytes
SHA-256: c8937fb117b5ad0c343a8d459ee56a49d12dd11bf577f3f7c53a65bd63ef931b
font_01_sfnt_off000061b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B2 19412 bytes
SHA-256: 9f2d18035413ba33397c677b2581e7e69ab306c490ad5b1efc57e4a607bb5205

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