Malicious PDF — malware analysis report

Static analysis result for SHA-256 709b19ef43a38177…

MALICIOUS

PDF

46.4 KB Created: 2021-06-10 18:07:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 12622910312a7ac3c3c558faaaf30765 SHA-1: 861e83927f1412570fed957a1d7f1f01d3ba1357 SHA-256: 709b19ef43a3817766724ac02d541d980601b8c52fa7046101e554c563961b22
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains multiple embedded URLs and a prominent link to 'free-roblox-dungeon-quest-account-game-hack', suggesting a lure for game-related scams or malware. The presence of a visual download button and callback lure heuristics further supports a phishing or social engineering attack pattern. Although no scripts were explicitly extracted, the ML classifier strongly indicates maliciousness, likely through embedded JavaScript or other exploit mechanisms within the PDF structure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 4

  • 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.tw/app/431946152/free-roblox-dungeon-quest-account-game-hack PDF link annotation
    • http://www.furuihp.com/Public/upload/editorfiles/coin-master-free-redeem-code_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/minecraft-wurst-client_GM479516143.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-free-robux_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/how-to-get-unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/coin-master-hack-ios-no-verification_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/daily-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/ww-roblox-come_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/roblox-royale-high-how-to-get-free-diamonds-2021_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-tiktok-accounts-and-passwords_GM835599320.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/roblox-free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000055fc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x55FC 25492 bytes
SHA-256: 67d3b5db6df8217549d42ae64de06704f669e0eea7142ed739f6cd264c29e4ea
font_01_sfnt_off00009107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9107 18808 bytes
SHA-256: 340ba050a2aede1a9917bb011041699e32b8364e0e5e622e6bdd27b6ddb01494

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