PDF static analysis report

Static analysis result for SHA-256 28f7cd43d1f385c8…

SUSPICIOUS

PDF

32.3 KB Created: 2021-07-19 12:32:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: eadbf1ab71347936ae59b567df508777 SHA-1: 6de9c851a8f42176123b72d76af5679bb6665a1e SHA-256: 28f7cd43d1f385c8c064b502f64d8c4f33bff3162439159228bce519d50bd9d1
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains a prominent call to action and a URL, http://netcdn.tw/app/431946152/earn-free-robux-game-hack, which is likely a lure for a scam or phishing attempt. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9895

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/431946152/earn-free-robux-game-hack PDF link annotation
    • https://sman7denpasar.sch.id/new/public/ckfinder/userfiles/files/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://sman7denpasar.sch.id/new/public/ckfinder/userfiles/files/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
    • https://sman7denpasar.sch.id/new/public/ckfinder/userfiles/files/tiktok-fans-free_GM835599320.pdfIn PDF document text
    • https://sman7denpasar.sch.id/new/public/ckfinder/userfiles/files/tiktok-likes-free_GM835599320.pdfIn PDF document text
    • https://sman7denpasar.sch.id/new/public/ckfinder/userfiles/files/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • https://sman7denpasar.sch.id/new/public/ckfinder/userfiles/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://sman7denpasar.sch.id/new/public/ckfinder/userfiles/files/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • https://sman7denpasar.sch.id/new/public/ckfinder/userfiles/files/free-robux-accounts_GM431946152.pdfIn PDF document text
    • https://sman7denpasar.sch.id/new/public/ckfinder/userfiles/files/free-likes-on-tiktok_GM835599320.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_off00002c6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C6F 21716 bytes
SHA-256: 3a118380743530449822e5b4ba87eb90588757621d0f4941a0eca82383ff6e3c
font_01_sfnt_off00005bc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BC9 18428 bytes
SHA-256: ce8be1eae563149e41a2b7e5f13780d458aa554a2c2a18751dc5d40709868ea0

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