PDF static analysis report

Static analysis result for SHA-256 ff534aa592d37140…

SUSPICIOUS

PDF

44.2 KB Created: 2021-06-01 08:22:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 7e49474c253470fead87ebb17462ac1c SHA-1: 539f55f1c0e88abfc0b5b2ad50567fb169b8e1e0 SHA-256: ff534aa592d37140c7de3f1dd5fdc8bce13dac5e6923d0702115dd6ab91244ae
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free Robux, a virtual currency, and includes an external URI pointing to a download page. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of external URLs and the nature of the lure suggest an attempt to download and execute a second-stage payload, likely involving JavaScript execution within the PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/431946152/robux-hack-free-no-human-verification-game-hack PDF link annotation
    • http://airrix.com/wp-content/uploads/fsqm-files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/best-free-script-executor-roblox_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/roblox-dolphin-hacks_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/is-there-an-actual-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/download-kranberry-roblox-hack_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/free-minecraft-codes_GM479516143.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/minecraft-free-app_GM479516143.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/roblox-vehicle-simulator-speed-hack-2021_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/cheat-engine-kill-al-script-roblox_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/inspect-robux-hack_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/free-roblox-accounts-with-robux-2021-september_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/is-it-illegal-to-hack-on-roblox_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/how-to-get-verified-on-tiktok-for-free-2021_GM835599320.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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
stream_004_off00004e08.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E08 25564 bytes
SHA-256: c8850b42a39c8bb6b0b4434a38c6a6dd2cd3274307eddbd8e2e4a6b0af331b68
font_01_sfnt_off000087ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87EE 19028 bytes
SHA-256: 6102b9d24dd525d1048fb18a3cf385c65129ef5d15069ce43df8f55aee5e0ead

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