Malicious PDF — malware analysis report

Static analysis result for SHA-256 d841a6707cda36ca…

MALICIOUS

PDF

13.4 KB Created: 2019-05-02 17:56:06 +01:00 Authoring application: mPDF 5.7
MD5: e37ee70ab6427f1fa8cc4d1698bfd109 SHA-1: 2347ec2ba1f3210f50257d3565e0afa8b63dbef1 SHA-256: d841a6707cda36ca04b513bbfd98734ed3a018ef1784a8ec3459fc3ae36e68ae
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, hosted on the loaminoo.linkpc.net domain. This heuristic firing indicates a link farm, likely intended to drive traffic or distribute further malicious content. The ML classifier also flagged this document as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9102

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/5090093090091096/The-Devil-Is-Dead-by-R-A-Lafferty.pdf
    • http://loaminoo.linkpc.net/4099097097093093/Before-the-Devil-Knows-You-re-Dead-Speak-of-the-Devil-3-by-Patricia-Eimer.pdf
    • http://loaminoo.linkpc.net/4090093098090095/Before-the-Devil-Knows-You-re-Dead-by-Michael-Ledwidge.pdf
    • http://loaminoo.linkpc.net/4092094097091/The-Devil-Knows-You-re-Dead-Matthew-Scudder-11-by-Lawrence-Block.pdf
    • http://loaminoo.linkpc.net/5096095093095093/War-by-Mur-Lafferty.pdf
    • http://loaminoo.linkpc.net/1093096099093093/Nine-Hundred-Grandmothers-by-R-A-Lafferty.pdf
    • http://loaminoo.linkpc.net/8092093092099094/Episodes-Of-The-Argo-by-R-A-Lafferty.pdf
    • http://loaminoo.linkpc.net/4092097091091098/House-of-Bathory-by-Linda-Lafferty.pdf
    • http://loaminoo.linkpc.net/2097095091091/Slow-Tuesday-Night-by-R-A-Lafferty.pdf
    • http://loaminoo.linkpc.net/5096095093099097/Mothership-Zeta-Issue-1-by-Mur-Lafferty.pdf
    • http://loaminoo.linkpc.net/4098094093090090/The-Shepherdess-of-Siena-by-Linda-Lafferty.pdf
    • http://loaminoo.linkpc.net/2097096095094095/The-Shepherdess-of-Siena-by-Linda-Lafferty.pdf
    • http://loaminoo.linkpc.net/5096095095097092/Mothership-Zeta-Issue-3-by-Mur-Lafferty.pdf
    • http://loaminoo.linkpc.net/5096095095093096/The-Argument-against-Louis-Pasteur-by-Mur-Lafferty.pdf
    • http://loaminoo.linkpc.net/1094099096093094/The-Bloodletter-s-Daughter-A-Novel-of-Old-Bohemia-by-Linda-Lafferty.pdf
    • http://loaminoo.linkpc.net/9099090094094/Offbeat-Love-Stories-and-More-by-Jennifer-K-Lafferty.pdf
    • http://loaminoo.linkpc.net/5096095095095097/Merry-Christmas-from-the-Heartbreakers-and-Other-Stories-by-Mur-Lafferty.pdf
    • http://loaminoo.linkpc.net/5096095093098097/Keeping-Friends-Close-Bookburners-1-13-by-Mur-Lafferty.pdf
    • http://loaminoo.linkpc.net/7092095099091/The-Drowning-Guard-A-Novel-of-the-Ottoman-Empire-by-Linda-Lafferty.pdf
    • http://loaminoo.linkpc.net/4099097092091097/The-Girl-Who-Fought-Napoleon-A-Novel-of-the-Russian-Empire-by-Linda-Lafferty.pdf
    • http://loaminoo.linkpc.net/5096095095097092/Mothership-Zeta-Issu

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