Malicious PDF — malware analysis report

Static analysis result for SHA-256 0879067b6924071f…

MALICIOUS

PDF

13.0 KB Created: 2019-05-05 15:49:17 +01:00 Authoring application: mPDF 5.7
MD5: a69e2d8ee6dfe6d36ff665b0b89a61c1 SHA-1: 6a51872ec735e2ed7545d6dcc8902b7de5c93767 SHA-256: 0879067b6924071f0725279d595b51258f33a76dd748f35a556c17eae7b697aa
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO poisoning or to distribute malware. The ML classifier also flagged this document as malicious. While no scripts were extracted, the sheer volume of links and the heuristic firing suggest an intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9006

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/3097090093097091/Saving-the-Fish-from-Drowning-Reflections-from-the-Barrio-by-James-O-39-Halloran.pdf
    • http://loaminoo.linkpc.net/3099091092096092/The-Drowning-The-Drowning-1-by-Rachel-Ward.pdf
    • http://loaminoo.linkpc.net/3094097096090090/One-Fish-Two-Fish-Red-Fish-Blue-Fish-by-Dr-Seuss.pdf
    • http://loaminoo.linkpc.net/4097092096093092/Red-Fish-Dead-Fish-Fish-Out-of-Water-2-by-Amy-Lane.pdf
    • http://loaminoo.linkpc.net/1092092092096091/Gould-s-Book-of-Fish-A-Novel-in-Twelve-Fish-by-Richard-Flanagan.pdf
    • http://loaminoo.linkpc.net/1096097097091097/Gould-s-Book-of-Fish-A-Novel-in-Twelve-Fish-by-Richard-Flanagan.pdf
    • http://loaminoo.linkpc.net/1091092094097099/Saving-You-Saving-Me-You-amp-Me-Trilogy-1-by-Kailin-Gow.pdf
    • http://loaminoo.linkpc.net/2092098096099097/Saving-You-Saving-Me-You-amp-Me-Trilogy-1-by-Kailin-Gow.pdf
    • http://loaminoo.linkpc.net/9092094096092090/Saving-Forever---Part-5-Saving-Forever-5-by-Lexy-Timms.pdf
    • http://loaminoo.linkpc.net/4095090090091/Saving-Mars-Saving-Mars-1-by-Cidney-Swanson.pdf
    • http://loaminoo.linkpc.net/1097094096098/The-Drowning-by-Jack-Ehrlich.pdf
    • http://loaminoo.linkpc.net/1093091098093093/Drowning-Anna-by-Sue-Mayfield.pdf
    • http://loaminoo.linkpc.net/4097098096090096/One-Man-Drowning-by-Steph-Minns.pdf
    • http://loaminoo.linkpc.net/1097097098/The-Drowning-Game-by-L-S-Hawker.pdf
    • http://loaminoo.linkpc.net/8098094097092099/Man-Drowning-by-Henry-Kuttner.pdf
    • http://loaminoo.linkpc.net/3099098092095094/Drowning-in-Fire-by-Craig-S-Womack.pdf
    • http://loaminoo.linkpc.net/4091092093095090/The-Drowning-People-by-Richard-Mason.pdf
    • http://loaminoo.linkpc.net/5090092092097094/Drowning-Ruth-by-Christina-Schwarz.pdf
    • http://loaminoo.linkpc.net/1094090098093095/The-Drowning-Tree-by-Carol-Goodman.pdf
    • http://loaminoo.linkpc.net/3099091092098093/Drowning-Fergus-by-Addison-Lane.pdf

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