Malicious PDF — malware analysis report

Static analysis result for SHA-256 44a64f3ca93efd09…

MALICIOUS

PDF

17.2 KB Created: 2020-03-15 00:54:28 +00:00 Authoring application: mPDF 5.7
MD5: dbc5a52cd2d9e10e432ea59d020a5131 SHA-1: 117beb1b371c84fd1886960056bc4975a2756895 SHA-256: 44a64f3ca93efd09ce1f678722cde68c2174cf05852f5b23fe225eaf6746b878
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. The primary attack pattern involves directing users to click on these links, which are hosted on the 'owlaokopdf.myhome.cx' domain. No scripts were extracted from this sample, and the document body was unreadable.

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://owlaokopdf.myhome.cx/6816681638160/That-Inevitable-Victorian-Thing-by-E-K-Johnston.pdf
    • http://owlaokopdf.myhome.cx/381648161816081628162/That-Inevitable-Victorian-Thing-by-E-K-Johnston.pdf
    • http://owlaokopdf.myhome.cx/181638164816681628163/A-Small-Thing-but-Big-by-Tony-Johnston.pdf
    • http://owlaokopdf.myhome.cx/98160816981688167/Inside-the-Victorian-Home-A-Portrait-of-Domestic-Life-in-Victorian-England-by-Judith-Flanders.pdf
    • http://owlaokopdf.myhome.cx/18166816781618167/Pretty-Jane-and-the-Viper-of-Kidbrooke-Lane-A-True-Story-of-Victorian-Law-and-Disorder-The-Unsolved-Murder-that-Shocked-Victorian-England-by-Paul-Thomas-Murphy.pdf
    • http://owlaokopdf.myhome.cx/581628162816081628166/Tools-of-the-Trade-A-Silver-and-Simm-Victorian-Mystery-Silver-and-Simm-Victorian-Mysteries-Book-1-by-Cynthia-E-Hurst.pdf
    • http://owlaokopdf.myhome.cx/381668164816981688168/One-Small-Thing-One-Thing-1-by-Piper-Vaughn.pdf
    • http://owlaokopdf.myhome.cx/181668168816881608167/Probably-Inevitable-by-Matthew-Tierney.pdf
    • http://owlaokopdf.myhome.cx/281648166816481608161/The-Inevitable-by-Ashay-Abbhi.pdf
    • http://owlaokopdf.myhome.cx/281678165816181638168/Inevitable-by-Nicola-Haken.pdf
    • http://owlaokopdf.myhome.cx/181658162816881628167/The-Inevitable-by-Daniel-Hope.pdf
    • http://owlaokopdf.myhome.cx/281628164816881648164/Inevitable-by-Nicola-Haken.pdf
    • http://owlaokopdf.myhome.cx/481638163816681658168/All-You-Need-is-Love-Inevitable-1-5-by-Janet-Nissenson.pdf
    • http://owlaokopdf.myhome.cx/181698169816781678162/Splendor-Inevitable-2-by-Janet-Nissenson.pdf
    • http://owlaokopdf.myhome.cx/1816181608168816981648165/Inevitable-I-Tanner-1-by-Remington-Kane.pdf
    • http://owlaokopdf.myhome.cx/48160816881688165/Inevitable-Harmony-1-by-Angela-Graham.pdf
    • http://owlaokopdf.myhome.cx/581608165816481648164/Drowning-Is-Inevitable-by-Shalanda-Stanley.pdf
    • http://owlaokopdf.myhome.cx/281648169816781658167/Inevitable-Love-and-War-1-by-Inger-Iversen.pdf
    • http://owlaokopdf.myhome.cx/381608169816681648163/Inevitable-A-Kingpin-Love-Affair-2-by-J-L-Beck.pdf
    • http://owlaokopdf.myhome.cx/1816181668162816481678163/All-New-X-Men-Inevitable-Volume-2-Apocalypse-Wars-by-Dennis-Hopeless.pdf

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