PDF static analysis report

Static analysis result for SHA-256 664a0f4607c4fda2…

SUSPICIOUS

PDF

34.3 KB Created: 2021-05-23 07:38:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4353c883bf8b640c2369b4ec3b6256ee SHA-1: cbbbedc34f68a4d45a8368e10f7747491c5ce70f SHA-256: 664a0f4607c4fda295da427bbad1dd20a146eec427ffacf1ac58e287810d2783
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains multiple embedded URLs that lead to sites offering 'free followers' or 'hacks' for popular games, suggesting a phishing or malware distribution attempt. The ML classifier also flagged this PDF as malicious. The document body explicitly mentions 'Free Tiktok Followers Instantly' and includes a 'CLICK HERE TO ACCESS TIKTOK GENERATOR' call to action, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9508

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/835599320/free-tiktok-followers-instantly-game-hack PDF link annotation
    • http://bufbd.org/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://bufbd.org/images/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://bufbd.org/images/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://bufbd.org/images/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://bufbd.org/images/extra-free-spins-for-coin-master_GM406889139.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_002_off00002ff3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FF3 23560 bytes
SHA-256: 8e700c42a307be0b0c6cd9a838f5d7413f1bb2bb22712438702bb93d672930b8
font_01_sfnt_off00006529.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6529 18100 bytes
SHA-256: f27faf11ab9b731ff59c8a2736de67f71ae1dcd874c0843e76df7710bacb1c6d

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