PDF static analysis report

Static analysis result for SHA-256 a8fdee8d5fc832f9…

SUSPICIOUS

PDF

41.8 KB Created: 2021-04-29 03:28:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 51f58269eb693c10dd0f52c00a6c582b SHA-1: e5abcbef1618450df1cc1485811c5ab5a6b33e37 SHA-256: a8fdee8d5fc832f9625b7d67909f5c4a32dcf1d9aaf324d94242810d9daa1bb2
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a prominent external URI pointing to sites offering 'free Robux' and game hacks. The ML classifier flagged this PDF as malicious with high confidence. The presence of these lures suggests the document is designed to trick users into downloading further malicious content or visiting compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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/free-robux-giveaway-live-now-2021-game-hack PDF link annotation
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/hack-para-sharkbite-roblox.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/hack-gratis-robux.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-offline-free-download-pc.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-glitches-and-cheats-for-lumber-tycoon.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/free-robux-pastebin-2021.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-free-cool-outfits.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/easy-way-to-get-free-robux-2021.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/how-to-cheat-infinite-jump-in-roblox.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-brick-bronze-cheats.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/robux-free-and-obc.pdfIn 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
stream_003_off000042e4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x42E4 25760 bytes
SHA-256: 73e13da0cc1a4f7ae12c2f1a34f810111ec505c4e8773831146756d594ec2948
font_01_sfnt_off00007ebe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EBE 19220 bytes
SHA-256: 3a9fa546fa5df0c18ab482685b1b1437bac037aecea7658f221cfe51595f62a0

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