PDF static analysis report

Static analysis result for SHA-256 c11904f958f14348…

SUSPICIOUS

PDF

41.7 KB Created: 2021-05-19 03:45:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 931ef816c52f03e1370c379049a9298f SHA-1: 66708b3bb76e2af51511a5377dfa6cf3370b1a6c SHA-256: c11904f958f143483776c9272751a7fdf0c2b70f67d1b993310220189ba69622
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded URLs, many of which are related to game hacks and cheats, suggesting a lure for users to download potentially unwanted or malicious software. The presence of a 'download button' heuristic further supports this, indicating a deceptive user interface. The ML classifier also flagged this PDF as malicious with high confidence.

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/1094591345/pokemon-go-free-spoofing-game-hack PDF link annotation
    • http://bufbd.org/images/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdfIn PDF document text
    • http://bufbd.org/images/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • http://bufbd.org/images/free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://bufbd.org/images/robux-online_GM431946152.pdfIn PDF document text
    • http://bufbd.org/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://bufbd.org/images/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • http://bufbd.org/images/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://bufbd.org/images/legit-coin-master-hack-october-2021_GM406889139.pdfIn PDF document text
    • http://bufbd.org/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://bufbd.org/images/robux-for-offers_GM431946152.pdfIn PDF document text
    • http://bufbd.org/images/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://bufbd.org/images/how-to-get-free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://bufbd.org/images/minecraft-windows-10-edition-free-download_GM479516143.pdfIn PDF document text
    • http://bufbd.org/images/coin-master-daily-free-link_GM406889139.pdfIn PDF document text
    • http://bufbd.org/images/freespinandcoin-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://bufbd.org/images/free-roblox-toy-codes-not-used_GM431946152.pdfIn PDF document text
    • http://bufbd.org/images/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://bufbd.org/images/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
    • http://bufbd.org/images/free-robux-net_GM431946152.pdfIn PDF document text
    • http://bufbd.org/images/how-to-hack-someones-roblox-account_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
stream_003_off00004893.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4893 24560 bytes
SHA-256: 4f905a7af3c7ae14ea3bdf40d30a0a95f4bf2f78286aada921d8cc08c5d19fba
font_01_sfnt_off0000804f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x804F 18424 bytes
SHA-256: 11dfcaa0006db07ba410a58aaa6bff09573e150639cc80e743b557308b471d8b