PDF static analysis report

Static analysis result for SHA-256 cb4b7dbeb3bee35f…

SUSPICIOUS

PDF

34.9 KB Created: 2021-07-10 03:13:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 004e56e5405e3ef2f7313499b9ea7697 SHA-1: 3d78e2536edb5a43b476d8050805ba508b445f65 SHA-256: cb4b7dbeb3bee35f4fbd56e14c10456804f60e9ca507bf244349fdfa3d93be6a
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, including one at 'http://netcdn.tw/app/431946152/free-roblox-accounts-2021-december-game-hack', which is presented as a lure for 'free Roblox accounts'. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple embedded URLs suggests an attempt to redirect users to potentially harmful content or downloads. No scripts were extracted, but the overall structure and content point to a phishing or malware distribution attempt.

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/431946152/free-roblox-accounts-2021-december-game-hack PDF link annotation
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/how-to-legally-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/coin-master-hack-mod-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-hack-no-human-verification-no-download_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/robux-free-co_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/zeus-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/can-cheat-engine-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/robuxfun-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/link-coin-master_GM406889139.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/how-to-get-free-clothes-on-roblox-nbc_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/robux-hack-apk-2021_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/optifine-pe_GM479516143.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/how-do-you-get-free-roblox-2021_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
font_00_sfnt_off00002f8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F8B 22500 bytes
SHA-256: 5190c8048cbf50eaebf9f9ee5e8e597178127d1fd043d20dbae698aa4f7ae1fa
font_01_sfnt_off000061f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F5 19540 bytes
SHA-256: fb755e1cecc28dbcec81bdb6f4f6a8d6145587973384beb594d164f802fc8009

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