Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8fed2e8d52f6dc0…

MALICIOUS

PDF

35.1 KB Created: 2021-06-27 02:49:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 04b5cf3fc1dd7a0f66850a01f72fe828 SHA-1: af78bfde486776484e589e0b15321fe14c92dd89 SHA-256: f8fed2e8d52f6dc00d87d11a67477a1b0eac491a6f459a99500bebaee67f3771
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks, specifically for Roblox and Coin Master, directing users to a malicious URL. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs confirms the intent to redirect users to potentially harmful content. No scripts were extracted, but the document's structure and embedded links suggest it's designed to lead users to a download or exploit site.

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/431946152/roblox-free-items-hack-2021-game-hack PDF link annotation
    • http://slims.abulyatama.ac.id/repository/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/robux-game-com_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/como-hackear-coin-master-2021-espaol_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/inappropriate-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-got-talent-piano-cheat_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/daily-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-spin-link-free_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/h2-account-stealing-hack-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-hack-tool-without-verification_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-hack-online-link_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-coin-spin_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-spins-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/hackaron-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-l-robux-2021-obby_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-hack-nonsense-diamond_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-116-free_GM479516143.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_off00003081.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3081 22436 bytes
SHA-256: 38f247a6ffc3ee7ec95c487c1b801f04ca0938c36c90ecaa23ceaa80653f5de1
font_01_sfnt_off00006273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6273 19588 bytes
SHA-256: d3d691a0c2bb346fca836648dbf481b7891d6a4159afd9d9f017686df1efd814

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