Malicious PDF — malware analysis report

Static analysis result for SHA-256 323b3ba3782a779c…

MALICIOUS

PDF

40.5 KB Created: 2021-05-22 16:35:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9c26d4c8ac5291535d6cc0819386571b SHA-1: 8c6d488b3265b989362b6a3e6de4005e11e0ebea SHA-256: 323b3ba3782a779c05353e20e856a92b001e54a4a4e3017f0d134120867addd0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to what appears to be a malicious redirector infrastructure, disguised as free generators or game hacks. The document body explicitly mentions 'Free Tiktok Followers No Verification Or Survey' and includes a call to action 'CLICK HERE TO ACCESS TIKTOK GENERATOR', reinforcing the lure. The ML classifier also flagged this PDF as malicious, indicating a high probability of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7768

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-no-verification-or-survey-game-hack In PDF document text
    • http://www.bcph.moph.go.th/ckfinder/userfiles/files/free-coin-master-spins-2021-link_GM406889139.pdfIn PDF document text
    • http://www.bcph.moph.go.th/ckfinder/userfiles/files/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://www.bcph.moph.go.th/ckfinder/userfiles/files/hack-to-send-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.bcph.moph.go.th/ckfinder/userfiles/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.bcph.moph.go.th/ckfinder/userfiles/files/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000034aa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34AA 28612 bytes
SHA-256: 6a6e614df5b5237ebf7e034e6d6c57fcab511444330768714e047341ce3c230a
font_01_sfnt_off00007257.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7257 2912 bytes
SHA-256: 02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f
font_02_sfnt_off00007c53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C53 18492 bytes
SHA-256: 4d8c0727d58b59d2b63319bab821bc095baa93826ac3da826e0a8bde5531d4a4

Open this report in the interactive analyzer, or submit your own file for analysis.