PDF static analysis report

Static analysis result for SHA-256 b96b8d4faa4593f5…

SUSPICIOUS

PDF

35.1 KB Created: 2021-05-22 00:41:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e140e8be9d604c8f48be77b32cc167a8 SHA-1: 72762893458bac807b131fac515bce956f9107e1 SHA-256: b96b8d4faa4593f5e2ed69dfc96fb50487aa111cfdec77d5ab1a1fbe3b03ed08
36 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to sites offering 'free' in-game currency or social media followers, a common lure for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of external URIs and the document's content suggest an attempt to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 3

  • External URI info PDF_URI
    PDF contains an external URL action
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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/how-to-get-tiktok-famous-free-game-hack PDF link annotation
    • http://yochin.org.tw/images/free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://yochin.org.tw/images/hack-coin-master-apk-32_GM406889139.pdfIn PDF document text
    • http://yochin.org.tw/images/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://yochin.org.tw/images/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://yochin.org.tw/images/free-coin-master-spins-link_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_off000034d6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34D6 23832 bytes
SHA-256: 0c3dcd1541be317a677d45160791b812902ec14a6df8aa5c1ed733ce4ae9d5ea
font_01_sfnt_off00006ab7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB7 18248 bytes
SHA-256: 9d8c9ff8f23476e9e897d50e05ba1c89fe9a64794c9c08e4c2e4cb1c87253222

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