Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec6348947ed83559…

MALICIOUS

PDF

15.3 KB Created: 2019-05-03 16:36:45 +01:00 Authoring application: mPDF 5.7
MD5: 253113bf4ec85b514ca34e31b347193a SHA-1: f0a8884df22ab81f2eaff0822f1e15d563fbd5fb SHA-256: ec6348947ed8355990fdd8406766795b110186f463defdc39b4a93f6117202bc
90 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. While the document body itself is heavily obfuscated, the presence of numerous links suggests an attempt to manipulate search engine results or distribute further malicious content. The ML_NYX_PDF_MALICIOUS classifier also strongly indicated maliciousness. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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/1206207208200206/Lucifer-Volume-1-Cold-Heaven-by-Holly-Black.pdf
    • http://xiixmcuin.linkpc.net/5200202205204204/The-Chronicles-of-Lucifer-Jones-Volume-I----1922-1926-Adventures-The-Chronicles-of-Lucifer-Jones-1-by-Mike-Resnick.pdf
    • http://xiixmcuin.linkpc.net/2206203209205209/Flight-to-Heaven-A-Plane-Crash-a-Lone-Survivor-a-Journey-to-Heaven--And-Back-by-Dale-Black.pdf
    • http://xiixmcuin.linkpc.net/3201206204205200/The-Wreck-of-Heaven-The-World-Gates-2-by-Holly-Lisle.pdf
    • http://xiixmcuin.linkpc.net/6204208207200200/The-Ice-Cold-Heaven-by-Mirko-Bonn-.pdf
    • http://xiixmcuin.linkpc.net/4200201205209204/Dawn-Volume-1-Lucifer-s-Halo-by-Joseph-Michael-Linsner.pdf
    • http://xiixmcuin.linkpc.net/4203206205206202/This-Cold-Heaven-Seven-Seasons-in-Greenland-by-Gretel-Ehrlich.pdf
    • http://xiixmcuin.linkpc.net/2203205207203200/The-Queen-of-Nothing-The-Folk-of-the-Air-3-by-Holly-Black.pdf
    • http://xiixmcuin.linkpc.net/2204204202207209/Doll-Bones-by-Holly-Black.pdf
    • http://xiixmcuin.linkpc.net/2201208200200203/Doll-Bones-by-Holly-Black.pdf
    • http://xiixmcuin.linkpc.net/1203205201202208/The-Copper-Gauntlet-by-Holly-Black.pdf
    • http://xiixmcuin.linkpc.net/4202200204206209/Red-Glove-Curse-Workers-2-by-Holly-Black.pdf
    • http://xiixmcuin.linkpc.net/7202207204204/The-Darkest-Part-of-the-Forest-by-Holly-Black.pdf
    • http://xiixmcuin.linkpc.net/4209204202202203/White-Cat-Curse-Workers-1-by-Holly-Black.pdf
    • http://xiixmcuin.linkpc.net/2202208200205200/Kith-The-Good-Neighbors-2-by-Holly-Black.pdf
    • http://xiixmcuin.linkpc.net/1202200208200209/White-Cat-Curse-Workers-1-by-Holly-Black.pdf
    • http://xiixmcuin.linkpc.net/6206200208/The-Silver-Mask-Magisterium-4-by-Holly-Black.pdf
    • http://xiixmcuin.linkpc.net/3207204207203202/Kind-The-Good-Neighbors-3-by-Holly-Black.pdf
    • http://xiixmcuin.linkpc.net/7201206209/The-Cruel-Prince-The-Folk-of-the-Air-1-by-Holly-Black.pdf
    • http://xiixmcuin.linkpc.net/9200203204/The-Lost-Sisters-The-Folk-of-the-Air-1-5-by-Holly-Black.pdf
    • http://xiixmcuin.linkpc.net/220

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