Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a3f0d49cf37dc60…

MALICIOUS

PDF

17.6 KB Created: 2020-03-21 17:14:47 +00:00 Authoring application: mPDF 5.7
MD5: 899c37a63fa17493a13b59436ede0780 SHA-1: 417b4bc87be8de4d6293a70f03d528b241abba80 SHA-256: 7a3f0d49cf37dc60e21e9fd265c0aedd2a514ca7b00439f9377e7147ed90b57f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO spam or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to potentially harmful content hosted on the 'kitasdyu.myhome.cx' domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9807

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://kitasdyu.myhome.cx/2873876871870875/Across-the-Bridge-Stories-by-Mavis-Gallant.pdf
    • http://kitasdyu.myhome.cx/2873875879874878/Montreal-Stories-by-Mavis-Gallant.pdf
    • http://kitasdyu.myhome.cx/4876875874877879/The-Cost-of-Living-Early-and-Uncollected-Stories-by-Mavis-Gallant.pdf
    • http://kitasdyu.myhome.cx/1871877873873876874/Helmi-Mavis-a-Finnish-American-Girlhood-by-Mavis-Hiltunen-Biesanz.pdf
    • http://kitasdyu.myhome.cx/4871871876876876/Midshipman-Henry-Gallant-in-Space-The-Henry-Gallant-Saga-1-by-H-Peter-Alesso.pdf
    • http://kitasdyu.myhome.cx/1875873871875877/Lieutenant-Henry-Gallant-The-Henry-Gallant-Saga-2-by-H-Peter-Alesso.pdf
    • http://kitasdyu.myhome.cx/5870876872876873/Fairly-Certain-Love-of-Fairs-1-by-Deborah-Ann-Davis.pdf
    • http://kitasdyu.myhome.cx/9871879874/Good-Time-by-Jana-Aston.pdf
    • http://kitasdyu.myhome.cx/6874872876877871/In-Good-Time-by-Aqua-Allsopp.pdf
    • http://kitasdyu.myhome.cx/2872877871871874/Time-Off-for-Good-Behavior-by-Lani-Diane-Rich.pdf
    • http://kitasdyu.myhome.cx/1878879870870874/Indulge-For-a-Good-Time-Call-2-by-Nancy-Warren.pdf
    • http://kitasdyu.myhome.cx/4878871871871870/For-A-Good-Time-Call-Bluewater-Bay-17-by-Anne-Tenino.pdf
    • http://kitasdyu.myhome.cx/3870878878872873/For-a-Good-Time-Call-Scars-1-by-Jessica-Gadziala.pdf
    • http://kitasdyu.myhome.cx/1876870878870875/Rawley-s-Redemption-Good-Time-Boys-3-by-Carol-Lynne.pdf
    • http://kitasdyu.myhome.cx/4871878879875876/Garron-s-Gift-Good-Time-Boys-2-by-Carol-Lynne.pdf
    • http://kitasdyu.myhome.cx/8879877870874878/Levi-Strauss-Gets-a-Bright-Idea-A-Fairly-Fabricated-Story-of-a-Pair-of-Pants-by-Tony-Johnston.pdf
    • http://kitasdyu.myhome.cx/1870875871871875872/It-Seemed-Like-a-Good-Idea-at-the-Time-My-Adventures-in-Life-and-Food-by-Moira-Hodgson.pdf
    • http://kitasdyu.myhome.cx/6871871877872876/The-Right-Stock-at-the-Right-Time-Prospering-in-the-Coming-Good-Years-by-Larry-R-Williams.pdf
    • http://kitasdyu.myhome.cx/2872873877875872/Shattered-by-Mavis-Marsh.pdf
    • http://kitasdyu.myhome.cx/1870874874875870877/Gay-Marriage-Why-It-Is-Good-for-Gays-Good-for-Straights-and-Good-for-America-by-Jonathan-Rauch.pdf

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