Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb9aa3e6babd1699…

MALICIOUS

PDF

17.4 KB Created: 2019-05-03 05:11:10 +01:00 Authoring application: mPDF 5.7
MD5: cec92aa58f2a972e3311dc5fc3deb4e3 SHA-1: 2adbd96b8cc3c401bd618dba787fbdce094faf2e SHA-256: cb9aa3e6babd1699e55ab028cb58030339783026055a2256d963d489d1e83a9c
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified as a link farm. The primary purpose appears to be SEO manipulation or redirecting users to potentially malicious content hosted on the 'cefasfese.4pu.com' domain. No scripts were extracted from this sample, and the document body was heavily obfuscated, limiting further analysis of user-facing lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9787

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://cefasfese.4pu.com/2734737733735736/The-Gang-Bust-Mike-McBride-Series-5-by-Dorothy-May-Mercer.pdf
    • http://cefasfese.4pu.com/2730734732737736/The-Cartel-Wars-A-Mike-McBride-Novel-4-by-Dorothy-May-Mercer.pdf
    • http://cefasfese.4pu.com/2735738732736736/The-Fairfax-Fix-McBride-Washington-1-by-Dorothy-May-Mercer.pdf
    • http://cefasfese.4pu.com/2734734739737731/The-Savage-Surrogate-by-Dorothy-May-Mercer.pdf
    • http://cefasfese.4pu.com/1737733733734736/Leon-and-Esther-by-Dorothy-May-Mercer.pdf
    • http://cefasfese.4pu.com/2737734736738733/How-to-Write-Great-Dialog-Your-Book-Needs-This-by-Dorothy-May-Mercer.pdf
    • http://cefasfese.4pu.com/3734730733737736/The-Immigrant-and-the-Golden-Coin-Library-Edition-by-Dorothy-May-Mercer.pdf
    • http://cefasfese.4pu.com/4732730738737731/How-to-Format-Your-Book-for-Publishing-How-to-For-You-Book-13-by-Dorothy-May-Mercer.pdf
    • http://cefasfese.4pu.com/1730732735739739/Fangtastic-My-Sister-the-Vampire-Series-2-by-Sienna-Mercer.pdf
    • http://cefasfese.4pu.com/1730732732738731/Re-Vamped-My-Sister-the-Vampire-Series-3-by-Sienna-Mercer.pdf
    • http://cefasfese.4pu.com/4736732737731730/The-Mansions-of-Idumea-Book-3-Forest-at-the-Edge-series-by-Trish-Mercer.pdf
    • http://cefasfese.4pu.com/1733730731738735/The-Last-Gang-in-Town-The-Epic-Story-of-the-Vancouver-Police-vs-the-Clark-Park-Gang-by-Aaron-Chapman.pdf
    • http://cefasfese.4pu.com/6732730736738738/Gang-Loyalty-Gang-Books-4-by-Peter-St-John.pdf
    • http://cefasfese.4pu.com/6737738736736737/Red-Horizon-The-Truth-of-Discovery-Discovery-Series-Book-2-by-Salvador-Mercer.pdf
    • http://cefasfese.4pu.com/2730737737731/Joy-for-Mourning-Exchange-Series-2-by-Dorothy-Clark.pdf
    • http://cefasfese.4pu.com/1735731731739738/The-Lymond-Chronicles-6-Book-Series-by-Dorothy-Dunnett.pdf
    • http://cefasfese.4pu.com/2734735735733735/Taken-by-a-Girl-Gang-The-Girl-Gang-Saga-Book-1-by-Kylie-Gable.pdf
    • http://cefasfese.4pu.com/1731735736737737734/459---Framed-in-Red-Book-2-in-the-Mike-Montego-Series-by-Jess-Waid.pdf
    • http://cefasfese.4pu.com/4736732736732738/The-Forest-at-the-Edge-of-the-World-Book-One-Forest-at-the-Edge-series-by-Trish-Mercer.pdf
    • http://cefasfese.4pu.com/1734733735732730/Rick-Mercer-Report-The-Book-by-Rick-Mercer.pdf
    • http://cefasfese.4pu.com/4736732737731730/The-Mansions-of-Idumea-Boo

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