PDF static analysis report

Static analysis result for SHA-256 9cd9c55af9bc5e08…

SUSPICIOUS

PDF

34.6 KB Created: 2021-06-29 07:06:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e622507476ea83d0749ec61cf158fd84 SHA-1: d55c9d5d9be04476cddd75a673546b88158a1000 SHA-256: 9cd9c55af9bc5e08f808fa21f4f9abbd66f30b858e2456c543a2d7d159e9d018
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The ML classifier flagged this PDF as malicious with high confidence. The document body and extracted URLs promote 'free Robux' and 'free spins', indicating a lure for potentially unwanted or malicious downloads. Although no scripts were explicitly extracted, the presence of external URIs and the overall context suggest a phishing or social engineering attempt to trick users into visiting malicious sites or downloading further payloads. The document's content and structure align with common phishing lures.

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.co/app/431946152/free-robux-promo-codes-2021-march-game-hack PDF link annotation
    • https://www.wco.org.uk/uploads/files/files/roblox-hack-game_GM431946152.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/roblox-cheat-menu-2021_GM431946152.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/free-robux-promo-codes-december-2021_GM431946152.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/free-templates-roblox_GM431946152.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/free-gta5-download-free-robux-veebucks_GM431946152.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/roblox-free-robux-hack-penguinson_GM431946152.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/free-dominus-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/kazok-roblox-hack-script_GM431946152.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/pokemon-go-free-7-day-research-reward_GM1094591345.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/coin-master-unlimited-coins-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://www.wco.org.uk/uploads/files/files/hacked-bunny-ears-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E25 22188 bytes
SHA-256: 14dd4c70d14006cc0b52be86bfa7d5ae3deeb0212c73638bdd9c91be2e7296b6
font_01_sfnt_off00005f1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1C 20068 bytes
SHA-256: 9eea7a2ee83601977025087125d7f626ea9cfff4483560af00331965b30e1423