Malicious PDF — malware analysis report

Static analysis result for SHA-256 53e58bcc44a05921…

MALICIOUS

PDF

16.0 KB Created: 2019-05-02 18:19:26 +01:00 Authoring application: mPDF 5.7
MD5: 6196f510824437eaea03c6c81a8a3096 SHA-1: 081e99d3e2c7caa28c4fa4a4fd7cafa0af94fc31 SHA-256: 53e58bcc44a05921b1105b155e2869b00f6acf24ca04b234c85f6182f07b35eb
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links pointing to external PDF documents on the domain 'cefasfese.4pu.com'. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious content. While the individual linked PDFs were not classified as malicious, the sheer volume and the nature of the heuristic firing suggest a malicious intent behind the document's creation. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis.

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/3735731735736732/Hearts-of-Resistance-by-Soraya-M-Lane.pdf
    • http://cefasfese.4pu.com/2732730735738731/The-War-Bride-Club-by-Soraya-M-Lane.pdf
    • http://cefasfese.4pu.com/2735732739737/Soldier-on-Her-Doorstep-by-Soraya-M-Lane.pdf
    • http://cefasfese.4pu.com/4739739731736734/Cowboy-Take-Me-Away-Texas-Kings-2-by-Soraya-M-Lane.pdf
    • http://cefasfese.4pu.com/2739733734730735/The-Navy-SEAL-s-Promise-by-Soraya-M-Lane.pdf
    • http://cefasfese.4pu.com/4739738736737730/Until-Our-Hearts-Are-On-The-Ground-Aboriginal-Mothering-Oppression-Resistance-And-Rebirth-by-Jeannette-Corbiere-Lavell.pdf
    • http://cefasfese.4pu.com/5735730737731733/Join-the-Resistance-Star-Wars-Join-the-Resistance-1-by-Ben-Acker.pdf
    • http://cefasfese.4pu.com/4736737731737732/Chicago-Syndicate-by-Soraya-Naomi.pdf
    • http://cefasfese.4pu.com/8732736734733/The-Stoning-of-Soraya-M-by-Freidoune-Sahebjam.pdf
    • http://cefasfese.4pu.com/4735736736730731/For-Logan-Chicago-Syndicate-5-by-Soraya-Naomi.pdf
    • http://cefasfese.4pu.com/1737734735734739/For-Fallon-Chicago-Syndicate-1-by-Soraya-Naomi.pdf
    • http://cefasfese.4pu.com/4739731736733735/In-My-Humble-Opinion-My-So-Called-Life-by-Soraya-Roberts.pdf
    • http://cefasfese.4pu.com/3738736736731731/The-Lawyer-and-the-Tramp-Chicago-Syndicate-7-by-Soraya-Naomi.pdf
    • http://cefasfese.4pu.com/2739734732733739/For-the-Love-of-Luca-Chicago-Syndicate-8-by-Soraya-Naomi.pdf
    • http://cefasfese.4pu.com/1730735734733739737/The-Witch-of-Willoughby-Lane-455-Willoughby-Lane-Tales-from-Mockingbird-Reef-Book-1-by-Alex-Tilt.pdf
    • http://cefasfese.4pu.com/4737734738738730/Hearts-of-Trust-Searching-Hearts-3-by-Ellie-St-Clair.pdf
    • http://cefasfese.4pu.com/2731736733734731/Hearts-Awakened-Hearts-of-the-South-6-by-Linda-Winfree.pdf
    • http://cefasfese.4pu.com/3739731730/Torn-Hearts-Hearts-1-5-by-Claire-Contreras.pdf
    • http://cefasfese.4pu.com/2735735732730/Wary-Hearts-Hearts-1-by-Marylyle-Rogers.pdf
    • http://cefasfese.4pu.com/2738/Kaleidoscope-Hearts-Hearts-1-by-Claire-Contreras.pdf
    • http://cefasfese.4pu.com/17377347357

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