Malicious PDF — malware analysis report

Static analysis result for SHA-256 c49f9e25f8aa100b…

MALICIOUS

PDF

18.2 KB Created: 2020-02-13 19:35:36 +00:00 Authoring application: mPDF 5.7
MD5: 363fd6bd14920bc7f0c41e422849d872 SHA-1: 6fb92a5b2467d02df2dda931035e1d6b8ab17fb4 SHA-256: c49f9e25f8aa100bef94071624040609ca2024a49e6b0b05a3e24eb9c3b45283
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, forming a link farm. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves directing users to external PDF files hosted on the domain 'lwoscmobook.myhome.cx'. No scripts were extracted, and the document body was heavily corrupted, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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://lwoscmobook.myhome.cx/1524152485244524752475240/Ruhe-in-Fetzen-Ein-Fall-f-r-Mrs-Murphy-Ein-Mrs--Murphy-Krimi-2-by-Rita-Mae-Brown.pdf
    • http://lwoscmobook.myhome.cx/1524152495240524252495241/Ruhe-in-Fetzen-ein-Fall-f-r-Mrs-Murphy-Mrs-Murphy-2-by-Rita-Mae-Brown.pdf
    • http://lwoscmobook.myhome.cx/1524152485244524852475243/Mord-auf-Rezept-Ein-Fall-f-r-Mrs-Murphy-Ein-Mrs--Murphy-Krimi-9-by-Rita-Mae-Brown.pdf
    • http://lwoscmobook.myhome.cx/1524152485244524852475242/Die-Katze-l-sst-das-Mausen-nicht-Ein-Fall-f-r-Mrs-Murphy-Ein-Mrs--Murphy-Krimi-10-by-Rita-Mae-Brown.pdf
    • http://lwoscmobook.myhome.cx/152475248524652485247/The-Big-Cat-Nap-Mrs-Murphy-20-by-Rita-Mae-Brown.pdf
    • http://lwoscmobook.myhome.cx/352425247524552495244/The-Litter-of-the-Law-Mrs-Murphy-22-by-Rita-Mae-Brown.pdf
    • http://lwoscmobook.myhome.cx/352415248524152415248/Nine-Lives-to-Die-Mrs-Murphy-23-by-Rita-Mae-Brown.pdf
    • http://lwoscmobook.myhome.cx/352415246524752405240/Murder-at-Monticello-Mrs-Murphy-3-by-Rita-Mae-Brown.pdf
    • http://lwoscmobook.myhome.cx/352415246524352485243/Puss-N-Cahoots-Mrs-Murphy-15-by-Rita-Mae-Brown.pdf
    • http://lwoscmobook.myhome.cx/352415248524552405244/Murder-on-the-Prowl-Mrs-Murphy-6-by-Rita-Mae-Brown.pdf
    • http://lwoscmobook.myhome.cx/252435240524952415240/Cat-of-the-Century-A-Mrs-Murphy-Mystery-by-Rita-Mae-Brown.pdf
    • http://lwoscmobook.myhome.cx/352415248524452445245/Rest-in-Pieces-Mrs-Murphy-2-by-Rita-Mae-Brown.pdf
    • http://lwoscmobook.myhome.cx/952425242524752435243/Mord-in-Monticello-Virus-im-Netz-Mrs-Murphy-3-4-by-Rita-Mae-Brown.pdf
    • http://lwoscmobook.myhome.cx/152415242524152475243/Black-Angels-by-Rita-Murphy.pdf
    • http://lwoscmobook.myhome.cx/35241524352435245/Murphy-s-Law-Molly-Murphy-Mysteries-1-by-Rhys-Bowen.pdf
    • http://lwoscmobook.myhome.cx/152445249524252435247/Are-We-Rome-The-Fall-of-an-Empire-and-the-Fate-of-America-by-Cullen-Murphy.pdf
    • http://lwoscmobook.myhome.cx/552455245524252415249/O-Poder-Do-Subconsiente---O-Grande-Classico-De-Joseph-Murphy-by-Joseph-Murphy.pdf
    • http://lwoscmobook.myhome.cx/952485240524452425242/Rita-Will-Memoir-of-a-Literary-Rabble-Rouser-by-Rita-Mae-Brown.pdf
    • http://lwoscmobook.myhome.cx/152485245524152455245/Whatever-Next-by-Jill-Murphy.pdf
    • http://lwoscmobook.myhome.cx/152465244524452445248/The-Last-Noo-Noo-by-Jill-Murphy.pdf
    • http://lwoscmobo

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