PDF static analysis report

Static analysis result for SHA-256 4fc28455a31f92c8…

SUSPICIOUS

PDF

41.0 KB Created: 2021-04-26 06:26:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 02f1e7e0cdc6a52b04e55c9e5e9c857b SHA-1: 0d2a30842fe057cb83a211ee0a09fb117dd03858 SHA-256: 4fc28455a31f92c843bdc7dfa853e515b5da2705f15a2aaa8e45cc8985b4f45a
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a visual download button lure, suggesting an attempt to trick users into downloading external content. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures indicate a phishing or malware distribution attempt, likely via a spearphishing attachment.

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-decals-for-roblox-work-at-a-pizza-place-game-hack PDF link annotation
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/open-rewards-free-robux.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/dbor-roblox-level-hack-v3rmillion.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/como-descargarse-hacks-en-roblox-jailbreak-agosto-2021.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/free-roblox-hair-to-wear.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/how-to-get-free-money-on-adopt-me-roblox-2021.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/how-to-become-hacker-in-roblox.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/bird-simulator-hack-roblox.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-tips-and-hacks.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-kindle-fire.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/how-to-hack-a-roblox-account-2021.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_off000041cc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x41CC 25448 bytes
SHA-256: de2b7c1e1444597b399b86c3dcc185f687045920ce9944f62261a25a9541f061
font_01_sfnt_off00007c03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C03 19172 bytes
SHA-256: 0836a78a2b6abc967c7ba3e7846d06d5dce8f0932d68be3cd33cfc5a4f37b6f6

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