PDF static analysis report

Static analysis result for SHA-256 354d73cec3a1a261…

SUSPICIOUS

PDF

46.7 KB Created: 2021-05-18 00:47:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 571dd98f4b42c76fd63333500eafb446 SHA-1: 5608ce57d0aac67c5e06a170f6084826a094f20b SHA-256: 354d73cec3a1a261eaa56dd4663cea584803271e1eaf32125ab86b67135b14d4
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded URLs that lead to pages offering game-related hacks and cheats, suggesting a lure to download potentially malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a visual download button heuristic further supports a malicious intent. The document body, though partially corrupted, contains references to 'Robux' and 'Roblox', aligning with the embedded URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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/what-is-robux-in-roblox-game-hack PDF link annotation
    • https://vireco-online.com/ckfinder/userfiles/files/coin-master-free-coins-amp_GM406889139.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/coin-master-20-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/roblox-cheat_GM431946152.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/master-free-spin_GM406889139.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/coin-master-official-fan-page_GM406889139.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/coinmaster-links_GM406889139.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/android-coin-master-3433-apk-hack_GM406889139.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/robux-link_GM431946152.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/coin-master-lucky-patcher-hack_GM406889139.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/ways-to-earn-robux_GM431946152.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/free-robux-accounts_GM431946152.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://vireco-online.com/ckfinder/userfiles/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.roblox.coIn 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_off00004c83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C83 31184 bytes
SHA-256: 4d43a2945ce49eea1f4d4f5dafe2edcd17d6afd73b6ef39635e13cd7260f6a2a
font_01_sfnt_off00009379.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9379 18620 bytes
SHA-256: c3b3b486eafc48c742c0dad5b43f45f76de8b28948fecc6b6a3050a87bc69882

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