Malicious PDF — malware analysis report

Static analysis result for SHA-256 3db72f62af131857…

MALICIOUS

PDF

21.5 KB Created: 2019-06-04 19:29:31 +01:00 Authoring application: mPDF 5.7
MD5: 1cbfdb9b9f44002ddd566a9df86b8825 SHA-1: 2544db459e4b894b15334aefda5f58cd1adfb6c9 SHA-256: 3db72f62af131857d30979716e1c643528b3e8db32067d17ab88643c9c3b8bee
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on the same domain. This behavior is indicative of a link farm or a phishing lure, aiming to direct users to potentially malicious content. The ML classifier also flagged this PDF as malicious, increasing the confidence in this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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/2738736730731732/Worlds-at-War-The-2-500-Year-Struggle-Between-East-and-West-by-Anthony-Pagden.pdf
    • http://cefasfese.4pu.com/2736737730739733/East-of-West-West-of-East-by-Hamish-Brown.pdf
    • http://cefasfese.4pu.com/5736734733736/My-Discovery-Of-The-West-A-Discussion-of-East-and-West-in-Canada-by-Stephen-Leacock.pdf
    • http://cefasfese.4pu.com/5731739739738738/The-East-Face-of-Helicon-West-Asiatic-Elements-in-Greek-Poetry-and-Myth-by-M-L-West.pdf
    • http://cefasfese.4pu.com/7733736739731739/Empires-of-the-Sand-The-Struggle-for-Mastery-in-the-Middle-East-1789-1923-by-Efraim-Karsh.pdf
    • http://cefasfese.4pu.com/2736735735739733/Thirteen-Days-in-September-The-Dramatic-Story-of-the-Struggle-for-Peace-in-the-Middle-East-by-Lawrence-Wright.pdf
    • http://cefasfese.4pu.com/7735732730734732/The-Struggle-for-Arab-Independence-Riad-El-Solh-and-the-Makers-of-the-Modern-Middle-East-by-Patrick-Seale.pdf
    • http://cefasfese.4pu.com/1731733739737735739/The-Arab-Uprising-The-Wave-of-Protest-that-Toppled-the-Status-Quo-and-the-Struggle-for-a-New-Middle-East-by-Marc-Lynch.pdf
    • http://cefasfese.4pu.com/9737730735735731/The-Battle-of-Konigsberg-The-Struggle-for-the-East-Prussian-Capital-October-1944-to-April-1945-by-Brian-Taylor.pdf
    • http://cefasfese.4pu.com/7733739736730/East-West-by-Salman-Rushdie.pdf
    • http://cefasfese.4pu.com/2734733734737/East-of-West-Vol-2-We-Are-All-One-by-Jonathan-Hickman.pdf
    • http://cefasfese.4pu.com/2732734735738730/East-amp-West-by-Piotr-Florczyk.pdf
    • http://cefasfese.4pu.com/8736730736736737/East-of-West-1-by-Jonathan-Hickman.pdf
    • http://cefasfese.4pu.com/3730736736732735/East-of-West-Vol-4-Who-Wants-War-by-Jonathan-Hickman.pdf
    • http://cefasfese.4pu.com/3730736733732734/East-of-West-Vol-3-There-Is-No-Us-by-Jonathan-Hickman.pdf
    • http://cefasfese.4pu.com/1730739738732732730/My-Year-in-Iraq-The-Struggle-to-Build-a-Future-of-Hope-by-L-Paul-Bremer-III.pdf
    • http://cefasfese.4pu.com/3737737738738731/Psychotherapy-East-and-West-by-Alan-W-Watts.pdf
    • http://cefasfese.4pu.com/3731737738730/East-of-the-Sun-West-of-the-Moon-by-Jackie-Morris.pdf
    • http://cefasfese.4pu.com/2733735732739/Big-Trouble-A-Murder-in-a-Small-Western-Town-Sets-off-a-Struggle-for-the-Soul-of-America-by-J-Anthony-Lukas.pdf
    • http://cefasfese.4pu.com/2732731733739730/East-of-the-West-A-Country-in-Stories-by-Miroslav-Penkov.pdf

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