Malicious PDF — malware analysis report

Static analysis result for SHA-256 21dd65958c6b692b…

MALICIOUS

PDF

18.0 KB Created: 2020-03-18 22:27:58 +00:00 Authoring application: mPDF 5.7
MD5: b7a4f6dbb1d5b0c42b7602ff53a25810 SHA-1: 2baa04b53a914ccf6b607666abc147df67fe7d68 SHA-256: 21dd65958c6b692be922815ae704c6f15f8b7ee1c2c9218941369e2dec3dc67e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to a single domain, indicating a link farm or redirection scheme. The ML classifier strongly suggests maliciousness. The primary attack pattern involves directing users to external content, likely to host further malicious payloads or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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/252475242524052465247/From-the-Complaint-Desk-of-Fran-Lewis-I-Speak-the-Truth-You-need-to-Hear-It-by-Fran-Lewis.pdf
    • http://lwoscmobook.myhome.cx/152485247524152455245/Speak-Softly-She-Can-Hear-by-Pam-Lewis.pdf
    • http://lwoscmobook.myhome.cx/252475242524652475246/Faces-Behind-the-Stones-by-Fran-Lewis.pdf
    • http://lwoscmobook.myhome.cx/252475242524052455246/Bertha-Speaks-Out-by-Fran-Lewis.pdf
    • http://lwoscmobook.myhome.cx/252475242524252465245/Bertha-Fights-Back-by-Fran-Lewis.pdf
    • http://lwoscmobook.myhome.cx/252475242524552425243/Sharp-as-a-Tack-or-Scrambled-Eggs-Which-Describes-Your-Brain-by-Fran-Lewis.pdf
    • http://lwoscmobook.myhome.cx/452445241524952475246/A-Time-to-Speak-by-Helen-Lewis.pdf
    • http://lwoscmobook.myhome.cx/352475241524552425243/C-S-Lewis-and-his-Circle-Essays-and-Memoirs-from-the-Oxford-C-S-Lewis-Society-by-Roger-White.pdf
    • http://lwoscmobook.myhome.cx/752475243524752405247/Preparing-for-Easter-Fifty-Devotional-Readings-from-C-S-Lewis-by-C-S-Lewis.pdf
    • http://lwoscmobook.myhome.cx/952405248524152445240/The-Voyage-of-the-Dawn-Treader-The-Chronicles-of-Narnia---C-S-Lewis-by-C-S-Lewis.pdf
    • http://lwoscmobook.myhome.cx/85249524152445245/A-Year-with-C-S-Lewis-Daily-Readings-from-His-Classic-Works-by-C-S-Lewis.pdf
    • http://lwoscmobook.myhome.cx/252495243524052495246/Novels-by-C-S-Lewis-The-Screwtape-Letters-the-Great-Divorce-Out-of-the-Silent-Planet-Till-We-Have-Faces-the-Pilgrim-s-Regress-by-C-S-Lewis.pdf
    • http://lwoscmobook.myhome.cx/752415244524652435247/Fran-by-Jim-Woodring.pdf
    • http://lwoscmobook.myhome.cx/452455240524252455245/Out-of-Her-Dreams-by-Fran-Lee.pdf
    • http://lwoscmobook.myhome.cx/352475242524852465242/The-Invisible-Fran-by-Jim-Benton.pdf
    • http://lwoscmobook.myhome.cx/352435244524252425244/Oreo-by-Fran-Ross.pdf
    • http://lwoscmobook.myhome.cx/752415244524752415243/Iceland-by-Fran-Parnell.pdf
    • http://lwoscmobook.myhome.cx/452475247524852405240/Oreo-by-Fran-Ross.pdf
    • http://lwoscmobook.myhome.cx/752445246524552435243/Fairfields-by-Fran-O-39-Brien.pdf
    • http://lwoscmobook.myhome.cx/85248524152455244/The-Illusionist-by-Fran-Heckrotte.pdf
    • http://lwoscmobook.myhome.cx/752475243524752405247/Preparin

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