Malicious PDF — malware analysis report

Static analysis result for SHA-256 074415daaba2f0a6…

MALICIOUS

PDF

42.7 KB Created: 2021-05-15 23:26:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9fa42baacb73dfb0a0baa033902411ad SHA-1: 9ab8b0ac02594273c0252a67ab88c8a64b98410f SHA-256: 074415daaba2f0a6702e2a355e2596af891ec80805e728deea070c0a3d7ab56a
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links and a document body referencing game hacks and free in-game currency, strongly suggesting a lure for users to visit malicious websites. The heuristic firings, particularly PDF_SEO_LINK_FARM and ML_NYX_PDF_MALICIOUS, indicate a high likelihood of malicious intent. The document likely serves as a phishing or scam document to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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.xyz/app/431946152/how-do-u-hack-roblox-game-hack
    • https://elearning.man3medan.com/__statics/gudangsoal/files/apps-for-free-spins-on-coin-master_GM406889139.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/free-robux-2021-no-verification_GM431946152.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/instagram-coin-master-free-spins_GM406889139.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/free-robux-hack-generator_GM431946152.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/is-it-possible-to-get-free-robux_GM431946152.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/coin-master-unlimited-spin-and-coin-hack_GM406889139.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/fighting-free-card-coin-master_GM406889139.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/free-hair-roblox_GM431946152.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/free-robux-no-verification-no-download_GM431946152.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/free-coin-master-spins-link-facebook_GM406889139.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/coin-master-free-spin-today-2021_GM406889139.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/pop-slots-free-vegas-casino-slot-machine-game-coin-master_GM406889139.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/free-spin-hack-coin-master-2021_GM406889139.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/coin-master-free-coin-hack_GM406889139.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/coin-master-official-page_GM406889139.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/coin-master-hack-tool-2021_GM406889139.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/coin-master-game-free-spin_GM406889139.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/minecraft-server-hacks_GM479516143.pdf
    • https://elearning.man3medan.com/__statics/gudangsoal/files/free-spins-on-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000482f.bin
cab0c3cecc207208b89cc17ba2fdcebc18a09469fc9f150f435f92fb51ae17af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x482F 26196 bytes
font_01_sfnt_off0000830f.bin
24715886d6b8435fb8a33d258b866203ee2974827a311e3ab6dcb36e4a196b9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x830F 18700 bytes

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