Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6b7bb6d91b8686e…

MALICIOUS

PDF

17.7 KB Created: 2019-05-01 18:32:20 +01:00 Authoring application: mPDF 5.7
MD5: f55dfe579e21708b036986b883f0b631 SHA-1: c899dd414549590fd1cb3c01fd7addc5a49cad85 SHA-256: c6b7bb6d91b8686e8c13f485eed59412cec4370d5776b3f502b73485d448413e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded external links, characteristic of a link farm or SEO poisoning attack. The document body contains numerous URLs pointing to what appear to be book titles, suggesting a lure to download potentially malicious content disguised as legitimate files. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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://loaminoo.linkpc.net/3094090093095090/Sunshine-And-The-Shadowmaster-The-Jones-Gang-5-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/2091097092091096/Honeymoon-Hotline-The-Jones-Gang-8-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/1092090099095096/The-Man-The-Moon-And-The-Marriage-Vow-The-Jones-Gang-6-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/1092099091090/Midsummer-Madness-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/6098097097096091/Holiday-Royale-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/1097092094092090/The-Tycoon-s-Instant-Daughter-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/6098098098099099/The-Prince-She-Had-to-Marry-Bravo-Royales-2-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/4099099091096097/Not-Quite-Married-The-Bravos-of-Justice-Creek-1-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/1091090096090098094/Champagner-K-sse-und-ein-Traumprinz-Bianca-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/3092099097090097/The-M-D-She-Had-To-Marry-Bravo-Family-6-Conveniently-Yours-6-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/2098093092091097/Her-Highness-and-the-Bodyguard-Bravo-Royales-4-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/2090092096090098/Practically-Married-Bravo-Family-3-Conveniently-Yours-3-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/2091091098098090/For-The-Baby-s-Sake-Silhouette-Special-Edition-925-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/6098098099090096/The-Prince-s-Secret-Baby-Bravo-Royales-1-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/2090092096092094/Married-By-Accident-Bravo-Family-4-Conveniently-Yours-4-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/9095090090091099/Julia-Saison-Band-05-Eine-unvergessliche-Liebe-Herzensgeheimnisse-Sonnenblumen-zum-Valentinstag-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/3096093096094093/His-Executive-Sweetheart-Bravo-Family-10-The-Sons-Of-Caitlin-Bravo-1-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/6098098099090094/Scrooge-and-the-Single-Girl-Bravo-Family-12-The-Sons-of-Caitlin-Bravo-3-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/6098098097099095/Having-Tanner-Bravo-s-Baby-Bravo-Family-22-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/6098098097099092/Marriage-Bravo-Style-Bravo-Family-31-by-Christine-Rimmer.pdf
    • http://loaminoo.linkpc.net/2090092096090098/Practically-Mar

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