PDF static analysis report

Static analysis result for SHA-256 720388cc6754b217…

SUSPICIOUS

PDF

41.4 KB Created: 2021-05-12 15:18:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ea3c08c7287e84faa85c5f8eb9a33027 SHA-1: 5593bc12806f5bfbd542536c6db08c37d9117d06 SHA-256: 720388cc6754b21771386b469b9f7d8f25882072e7f552661028e532ef3064e3
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with one prominent URL leading to a site offering 'Coin Master Free Coins and Spins'. The ML classifier strongly flagged this PDF as malicious, and the presence of a visual download button heuristic further supports a malicious intent. The document body, though partially corrupted, contains references to these lures and the associated URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-free-coins-and-spins-today-game-hack PDF link annotation
    • https://www.hobbypcb.com/images/how-to-get-free-followers-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.hobbypcb.com/images/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.hobbypcb.com/images/coin-master-card-collection-link_GM406889139.pdfIn PDF document text
    • https://www.hobbypcb.com/images/minecraft-pe-apk_GM479516143.pdfIn PDF document text
    • https://www.hobbypcb.com/images/free-roblox-girl-clothes_GM431946152.pdfIn PDF document text
    • https://www.hobbypcb.com/images/free-robux-just-click_GM431946152.pdfIn PDF document text
    • https://www.hobbypcb.com/images/coin-master-hack-that-actually-works_GM406889139.pdfIn PDF document text
    • https://www.hobbypcb.com/images/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • https://www.hobbypcb.com/images/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://www.hobbypcb.com/images/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • https://www.hobbypcb.com/images/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • https://www.hobbypcb.com/images/how-do-you-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.hobbypcb.com/images/coin-master-hack-unlimited-spins-apk-download_GM406889139.pdfIn PDF document text
    • https://www.hobbypcb.com/images/how-to-hack-coin-master-game-without-verification_GM406889139.pdfIn PDF document text
    • https://www.hobbypcb.com/images/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.hobbypcb.com/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://www.hobbypcb.com/images/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • https://www.hobbypcb.com/images/roblox-hacked-accounts-list_GM431946152.pdfIn PDF document text
    • https://www.hobbypcb.com/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://www.hobbypcb.com/images/coin-monster_GM406889139.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
stream_003_off00004637.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4637 24764 bytes
SHA-256: a33220609506729b8743cf2b50e1b103570355943f25ff97ecbfc9360de05a44
font_01_sfnt_off00007f78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F78 18240 bytes
SHA-256: 4e9460ee7c922f2330eb91d2df2ab210a384988491c8b06196f83513902e5b38