PDF static analysis report

Static analysis result for SHA-256 f23dc90ba1a93731…

SUSPICIOUS

PDF

30.9 KB Created: 2021-07-20 22:10:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a89ece2578122698eca72cdc7ab56e1e SHA-1: 0af4cc34e45c90926a91cca1618950955e265ef4 SHA-256: f23dc90ba1a937311ae3d2112df876b5b6db2e436a36aa3231d3fc185fe5b226
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains heuristics indicating it's a lure for game hacks and redirects to an external URL. The document body explicitly mentions 'How To Get Free Tiktok Fans' and includes a call to action to 'CLICK HERE TO ACCESS TIKTOK GENERATOR', further supporting the lure. The embedded URL points to a site offering a 'free generator', which is a common social engineering tactic to trick users into visiting potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier clean score 0.0560

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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 http://netcdn.tw/app/835599320/how-to-get-free-tiktok-fans-without-human-verification-game-hack PDF link annotation
    • 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_off00002024.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2024 23756 bytes
SHA-256: 5a94d1748d1d39bd6598eff05e735d0c2767b771d24ed02b1ecab3aee4df7103
font_01_sfnt_off0000562b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x562B 18748 bytes
SHA-256: 9c1c07c767fa9d9d53b8a100ba390363441f73e8e5d8be898b87013d8ae4ffbd

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