PDF static analysis report

Static analysis result for SHA-256 68c3c80078261e88…

SUSPICIOUS

PDF

34.6 KB Created: 2021-07-10 01:54:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 2b6874e1fada8e6ccf4efc08f632b4f5 SHA-1: 860a51e74a11eae2dd9125ab563d09aa52b7c4ea SHA-256: 68c3c80078261e889d4614dcd4652bbc715d7c30524903e0c60e55adb95990e0
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains a prominent link to 'http://netcdn.tw/app/406889139/free-spin-link-in-coin-master-game-game-hack', suggesting a lure for free in-game items. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a visual download button heuristic further support a malicious intent. While no scripts were extracted, the overall structure and content point towards a phishing or scam attempt, likely leading to a malicious download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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/406889139/free-spin-link-in-coin-master-game-game-hack PDF link annotation
    • https://www.opertus-me.com/uploaded_files/userfiles/files/free-minecraft-server-hosting-with-plugins_GM479516143.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/free-coin-master-spins-blogger_GM406889139.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/robux-games_GM431946152.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/freerobux-hack-us_GM431946152.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/comment-maitre-de-dinosaure-dans-free-dino-tycoon-roblox_GM431946152.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/how-to-get-robux-for-free-pc_GM431946152.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/coin-master-mod-apk-2021_GM406889139.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/roblox-games-free-download-for-android_GM431946152.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/roblox-20-download-free_GM431946152.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/free-robux-android-2021_GM431946152.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/oprewards-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/roblox-dinosaur-simulator-hack-script_GM431946152.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/coin-master-game-hack-version-download_GM406889139.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://www.opertus-me.com/uploaded_files/userfiles/files/what-is-a-minecraft-client_GM479516143.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
font_00_sfnt_off000030ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30AB 22780 bytes
SHA-256: 9861cd0267e1e59a1daea209d7dc34f8358b103531934c5a322e6f474a0940a9
font_01_sfnt_off000063cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CD 18604 bytes
SHA-256: 94f729aa24bd525058865a50c70cb682e513454b4ef239aff09a14ed80715174

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