Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d0fa64836f9ceb4…

MALICIOUS

PDF

44.4 KB Created: 2021-06-08 21:09:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 95335d66188d6be7d5dad38f56ff4570 SHA-1: bb48ddf59de13074035be30d18c66feefacac666 SHA-256: 5d0fa64836f9ceb49f97c2fee70154d2f7a5066ba4e7f7fa76cb32620908962a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains lures typical of advance-fee scams, specifically referencing free game currency and hacks. It includes an external URI pointing to a website that likely hosts the scam content. While no scripts were directly extracted, the PDF structure and heuristic firings suggest a malicious workflow designed to trick users into visiting a malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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 https://netcdn.tw/app/431946152/earn-robux-today-free-watching-ads-game-hack
    • http://maslabaou.com/images/coin-master-coins-free_GM406889139.pdf
    • http://maslabaou.com/images/boost9-com-roblox-hack_GM431946152.pdf
    • http://maslabaou.com/images/how-to-get-free-gamepasses-on-roblox_GM431946152.pdf
    • http://maslabaou.com/images/rbx-robux_GM431946152.pdf
    • http://maslabaou.com/images/free-robux-no-offers_GM431946152.pdf
    • http://maslabaou.com/images/tiktok-free-views_GM835599320.pdf
    • http://maslabaou.com/images/www-free-robux-com_GM431946152.pdf
    • http://maslabaou.com/images/minecraft-free-ios-no-verification_GM479516143.pdf
    • http://maslabaou.com/images/easy-robux_GM431946152.pdf
    • http://maslabaou.com/images/roblox-hack-generator_GM431946152.pdf
    • http://maslabaou.com/images/minecraft-java-edition-code-free_GM479516143.pdf
    • http://maslabaou.com/images/coin-master-2021-free-spins-link-blogspot_GM406889139.pdf
    • http://maslabaou.com/images/hack-coin-master-1_GM406889139.pdf
    • http://maslabaou.com/images/free-hair-roblox_GM431946152.pdf
    • http://maslabaou.com/images/roblox-hack-unlimited-robux_GM431946152.pdf
    • http://maslabaou.com/images/block-best-robux_GM431946152.pdf
    • http://maslabaou.com/images/how-to-hack-people-in-roblox_GM431946152.pdf
    • http://maslabaou.com/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdf
    • http://maslabaou.com/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdf
    • http://maslabaou.com/images/free-roblox-card_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000500f.bin
51faea2d50d8425cc24a02416579830ee98903a39e68065b6c307e50604d7281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x500F 24148 bytes
font_01_sfnt_off0000873a.bin
87df4105b86b7afa8e266e1d3177676d129bf34b98fd49de0fd0a16db370d1c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x873A 19472 bytes

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