Malicious PDF — malware analysis report

Static analysis result for SHA-256 796b21ecf751b89c…

MALICIOUS

PDF

34.1 KB Created: 2021-07-05 03:46:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3365712af47d3ea2c9ecd2427307929f SHA-1: 6cd61522f56006ce809548df8cb75912795b65c2 SHA-256: 796b21ecf751b89c36cafb6a4cf9393d1a9d513deea36310418a6219e124c2db
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and lures related to game hacks and generators, specifically mentioning Roblox and Coin Master. The primary URL http://netcdn.tw/app/431946152/join-roblox-free-game-hack is highlighted as a redirector to potentially malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt designed to trick users into visiting malicious sites.

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/join-roblox-free-game-hack PDF link annotation
    • http://www.pspmrsmmbk.com/cendana//repository/rape-simulator_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-roblox-shirts-templates_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-hack-quora_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/best-free-things-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/xcuteur-bandit-pour-scrpit-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/royale-high-school-roblox-free-play_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/spin-rewards-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/robux-generator-no-human-verification-or-survey-roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/pokemon-go-free-quickest-charge-moves_GM1094591345.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-high-school-games-for-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-mod-version-free-download-v344_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-free-2021-spin-link-today_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-get-lots-of-robux-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-get-dominus-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-outfits-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/hack-robux-2021-pc_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_off00002f22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F22 22492 bytes
SHA-256: f429981b923d42ff3d5677860988629717d998dd88dfa7e376afb4c970113803
font_01_sfnt_off00006120.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6120 18748 bytes
SHA-256: 05a5be3c9d2f88177278884cd210c519777d728f39acd46bcb3c20ae0450e1c5

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