Malicious PDF — malware analysis report

Static analysis result for SHA-256 88c422f7b9ba7cae…

MALICIOUS

PDF

15.0 KB Created: 2019-05-01 05:20:18 +01:00 Authoring application: mPDF 5.7
MD5: 828eed772441a5423a00d53460586e86 SHA-1: 5c826c22f7bd438cb711212b32c6e1e15128d384 SHA-256: 88c422f7b9ba7cae1b7b9b2feb60495f3c6dc7945ef346a8088861b3881cd609
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a link farm. The ML classifier also flagged the document as malicious. While the specific intent of the link farm is unclear, it is likely used for SEO manipulation or to distribute further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://xiixmcuin.linkpc.net/1200207205208201205/Buddhists-Talk-About-Jesus-Christians-Talk-About-the-Buddha-by-Terry-Muck.pdf
    • http://xiixmcuin.linkpc.net/8201208207201203/What-We-Talk-About-When-We-Talk-About-Love-by-Raymond-Carver.pdf
    • http://xiixmcuin.linkpc.net/3200209202202202/What-We-Talk-About-When-We-Talk-About-Love-by-Raymond-Carver.pdf
    • http://xiixmcuin.linkpc.net/2207200208202206/Live-Like-a-Jesus-Freak-Spend-Today-as-If-It-Were-Your-Last-by-D-C-Talk.pdf
    • http://xiixmcuin.linkpc.net/2202203203201208/How-to-Talk-About-Jesus-without-Freaking-Out-with-Study-Guide-by-Jim-Covell.pdf
    • http://xiixmcuin.linkpc.net/2208200206204/Talk-Talk-by-T-Coraghessan-Boyle.pdf
    • http://xiixmcuin.linkpc.net/1207208201204204/Jesus-Freaks-Stories-of-Revolutionaries-Who-Changed-Their-World-Fearing-God-Not-Man-by-D-C-Talk.pdf
    • http://xiixmcuin.linkpc.net/2205202204204206/What-We-Talk-about-When-We-Talk-about-God-by-Rob-Bell.pdf
    • http://xiixmcuin.linkpc.net/1208204206201/Blue-Jean-Buddha-Voices-of-Young-Buddhists-by-Sumi-Loundon.pdf
    • http://xiixmcuin.linkpc.net/4202204201208208/Five-Times-More-Jesus-Why-Christians-Should-Decanonize-the-Old-Testament-by-Jim-Adam.pdf
    • http://xiixmcuin.linkpc.net/2206200202208203/If-Only-They-Could-Talk-by-James-Herriot.pdf
    • http://xiixmcuin.linkpc.net/1201204202200205201/Talk-to-the-Paw-by-Melinda-Metz.pdf
    • http://xiixmcuin.linkpc.net/2205208203203209/Talk-to-Her-by-Anne-W-Eaton.pdf
    • http://xiixmcuin.linkpc.net/4207208205206201/If-Streets-Could-Talk-What-Would-They-Say-by-Mr-Skunk-Ape.pdf
    • http://xiixmcuin.linkpc.net/6200209209203206/Sweet-Talk-by-S-L-Scott.pdf
    • http://xiixmcuin.linkpc.net/1202200209207/Talk-of-the-Ton-by-Eloisa-James.pdf
    • http://xiixmcuin.linkpc.net/6201205204201204/Colors-to-Talk-About-by-Leo-Lionni.pdf
    • http://xiixmcuin.linkpc.net/7201203202203205/How-to-Talk-to-Your-Cat-by-Patricia-Moyes.pdf
    • http://xiixmcuin.linkpc.net/9203209201205/If-Only-They-Could-Talk-by-James-Herriot.pdf
    • http://xiixmcuin.linkpc.net/1200208207201201/Talk-to-Me-by-Sonia-Ellis.pdf

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