Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b105d99ddba6dc9…

MALICIOUS

PDF

33.1 KB Created: 2021-05-30 01:01:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 039734e75746d180a079f521c6f36e2c SHA-1: c14b5ba221593ddb69bfb6d57b22cc42c65cca59 SHA-256: 9b105d99ddba6dc99a29e49bb80c647d8cbddead5e32a27a7366bbb6f7fd518b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for a "free generator / game hack" for TikTok, directing users to a suspicious URL. The document body also contains a call to action to "CLICK HERE TO ACCESS TIKTOK GENERATOR". While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or redirection attempt to a malicious site, likely to deliver a secondary payload or conduct further social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8871

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 https://netcdn.xyz/app/835599320/free-tiktok-likes-and-followers-game-hack PDF link annotation
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D94 23128 bytes
SHA-256: 661ec95ad0699325142d4032aa764954f9dd2bc9c0c9711a1df4eede064d4fd6
font_01_sfnt_off0000612f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x612F 17868 bytes
SHA-256: d80a5b590fc1f536f9a9d288da246cac59e10184b672ed9828d0991e5480315e

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