Malicious PDF — malware analysis report

Static analysis result for SHA-256 164cd5443c027b89…

MALICIOUS

PDF

20.3 KB Created: 2020-03-21 09:19:40 +00:00 Authoring application: mPDF 5.7
MD5: 64a20e2bbbde789700cf45ac51cd9ee7 SHA-1: e71cdd8f5c6d69404dbda192afbf2d04d2016a45 SHA-256: 164cd5443c027b89d2093e3bc51896e5488648124323c53e416c7dc3b6d6d24e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified as a link farm, all pointing to the same domain. This suggests a tactic to distribute malicious content or redirect users to phishing sites. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent, likely to facilitate initial access via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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://ieuicufioao.myhome.cx/4552552552552556/Mail-Order-Rose-Mail-Order-Brides-1-by-Cara-Cabot.pdf
    • http://ieuicufioao.myhome.cx/7555551553552551/Mail-Order-Mary-Historical-Mail-Order-Bride-Novella-The-Belgrave-Brides-Agency-Book-3-by-Audrey-Yates.pdf
    • http://ieuicufioao.myhome.cx/8559553559555558/The-Christmas-Mail-Order-Bride-Holiday-Mail-Order-Brides-1-by-Kit-Morgan.pdf
    • http://ieuicufioao.myhome.cx/7553554557554/Emma-Mail-Order-Brides-Club-1-by-Ashley-Merrick.pdf
    • http://ieuicufioao.myhome.cx/2550554552554559/Blackthorne-s-Bride-Mail-Order-Brides-4-by-Joan-Johnston.pdf
    • http://ieuicufioao.myhome.cx/3554554558550556/The-Cowboy-s-Mail-Order-Bride-Cowboys-amp-Brides-3-by-Carolyn-Brown.pdf
    • http://ieuicufioao.myhome.cx/9552559555555559/Mail-Order-Sweetheart-Boom-Town-Brides-3-by-Christine-Johnson.pdf
    • http://ieuicufioao.myhome.cx/8559554551551550/Shane-s-Bride-Mail-Order-Brides-of-Texas-3-by-Kathleen-Ball.pdf
    • http://ieuicufioao.myhome.cx/2554556550556551/The-Mail-Order-Brides-of-Boot-Creek-Anthology-by-Carr-White.pdf
    • http://ieuicufioao.myhome.cx/5557557558558/Westward-Winds-Montana-Mail-Order-Brides-1-by-Linda-Bridey.pdf
    • http://ieuicufioao.myhome.cx/2550550554553550/Mail-Order-Marriages-Brides-For-Brothers-The-Marriage-Risk-by-Debbie-Macomber.pdf
    • http://ieuicufioao.myhome.cx/5554550556559559/The-Chef-s-Mail-Order-Bride-Wild-West-Frontier-Brides-1-by-Cindy-Caldwell.pdf
    • http://ieuicufioao.myhome.cx/9558558558559551/Big-Beautiful-Bride-For-The-Reluctant-Preacher-Colorado-Wildnerness-Mail-Order-Brides-1-by-Rosie-Attwood.pdf
    • http://ieuicufioao.myhome.cx/6558558553556556/Echo-Bayou-Springs-Alien-Mail-Order-Brides-3-Intergalactic-Dating-Agency-19-by-Kenzie-Cox.pdf
    • http://ieuicufioao.myhome.cx/8554554550554550/Traita-c-de-Peintures-Vitrifiables-Sur-Porcelaine-Dure-Et-Porcelaine-Tendre-Sur-A-c-Mail-A-c-Mail-Genre-Limoges-A-c-Mail-or-Grava-c-Faaence-Grand-Feu-Sur-A-c-Mail-Et-Sous-A-c-Mail-by-Delphine-De-Cool.pdf
    • http://ieuicufioao.myhome.cx/8553550556553558/Mail-Order-Regrets-by-Julianna-Blake.pdf
    • http://ieuicufioao.myhome.cx/3550557551550559/The-Mail-Order-Bride-by-Diana-Bold.pdf
    • http://ieuicufioao.myhome.cx/9557551558556556/The-Airman-s-E-Mail-Order-Bride-by-Cora-Seton.pdf
    • http://ieuicufioao.myhome.cx/9552554558550558/Luck-Of-The-Draw-Mail-Order-Men-3-by-Candace-Schuler.pdf
    • http://ieuicufioao.myhome.cx/4559553552556551/The-Mail-Order-Bride-s-Deception-by-Ruth-Ann-Nordin.pdf