Malicious PDF — malware analysis report

Static analysis result for SHA-256 dabe0957523ea7c3…

MALICIOUS

PDF

34.9 KB Created: 2021-07-04 09:01:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 11bac34d35aa6672a1f4d0a422ca60e4 SHA-1: 36a0da6d2141059704e064263442fd513b234d82 SHA-256: dabe0957523ea7c31130bdcfcd1451448dc9729bd0a0d9675ead619c243a5cb6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that are designed to lure users into clicking on links promising free game items or accounts. The primary URL, http://netcdn.tw/app/431946152/free-roblox-accounts-with-builders-club-game-hack, is flagged as a game hack redirector. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a malicious intent to redirect users to potentially harmful websites for further exploitation.

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/free-roblox-accounts-with-builders-club-game-hack PDF link annotation
    • http://artistaone.co/userfiles/files/free-robux-2021-august_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-roblox-toy-codes_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-roblox-account-with-robux-on-it_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/roblox-adopt-me-free-pets_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/discord-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/how-to-get-any-face-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/best-star-wars-maps-free-models-roblox_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/roblox-mm2-hack-2021_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/coin-master-game-hunters-club_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/ultimate-game-365-free-robux_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/inf-robux-hack_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/coin-master-free-coins-amp_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/comment-cheat-dans-boku-no-roblox-remastered-roblox_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/today-coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/roblox-ftw_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/roblox-skin-coluor-robux-hack-youtube-robuxianyoutube_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_off0000302c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x302C 22276 bytes
SHA-256: ba417104f2d85a4c8e4321e281fc9b7ade82af80fefaef234f81d38569c656a7
font_01_sfnt_off000061cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61CB 19552 bytes
SHA-256: b1eb7f5cc000dbd6647d8142d7b5a18728747fb2d8c014d369b8d8e037db6dcf

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