Malicious PDF — malware analysis report

Static analysis result for SHA-256 e56f7e7a15852c91…

MALICIOUS

PDF

42.9 KB Created: 2020-03-21 19:49:33 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: bb3ccce446fb8363dcdb6a51ef1d64c8 SHA-1: 337abecf92fbf851d714e0223e9aed9bb70e288b SHA-256: e56f7e7a15852c9104b53013d6f96fe9f5753f8f373807566f907d112bc22b74
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The primary URL points to a document titled 'Dificil de creer john macarthur pdf', suggesting a lure. The ML classifier strongly flagged this PDF as malicious. The numerous external links likely serve to redirect users to malicious websites or to engage in SEO poisoning tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://openmeadowfarms.com/uploads/1/3/0/2/130288348/130288348.html#dificil+de+creer+john+macarthur+pdf
    • http://romanmasonry.com/uploads/1/3/0/6/130639848/fonokajavuwodo.pdf
    • http://www.shylanelson.com/uploads/1/3/0/2/130272387/b5ff0.pdf
    • http://www.foodfundamentalsdiary.com/uploads/1/3/0/6/130639766/6ac8f1cafca6993.pdf
    • http://xtremetruckandtrailerspecialties.com/uploads/1/3/0/6/130639628/jorudevuniwaroxaj.pdf
    • http://www.brooklinegogetter.com/uploads/1/3/0/3/130379741/zuxixula.pdf
    • http://tohrurainer.com/uploads/1/3/0/2/130288412/8248994.pdf
    • http://www.skinplicity.co.uk/uploads/1/3/0/5/130547999/rumadonazonosem_bomitadimajago_limododi.pdf
    • http://www.usefulfictions.co.uk/uploads/1/3/0/7/130775856/2538423.pdf
    • http://74-123-77-241.mgwnet.com/uploads/1/3/0/6/130605097/8726797.pdf
    • http://cutillocomm.org/uploads/1/3/0/8/130814283/jigokip.pdf
    • http://stglashlady.club/uploads/1/3/0/5/130588165/govuzop.pdf
    • http://www.hrobertsportfolio.com/uploads/1/3/0/5/130545493/7949826.pdf
    • http://rachelcdoe.com/uploads/1/3/0/5/130588703/6146236.pdf
    • http://orendagametables.info/uploads/1/3/0/2/130288559/falufepij_gugetojuparo.pdf
    • http://www.dropoak.com/uploads/1/3/0/7/130740206/7595595.pdf
    • http://seqmgmt.net/uploads/1/3/0/5/130544703/419889.pdf
    • http://www.alexisjae.co/uploads/1/3/0/7/130776725/4791937.pdf
    • http://www.royalinstincts.com/uploads/1/3/0/6/130604340/5475728.pdf
    • http://620alderst.com/uploads/1/3/0/6/130621552/tadet_vozuged_xaxizuf.pdf
    • http://cpanel.temp046.madesimplydev.com/uploads/1/3/0/9/130969158/110cd6b420e8.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e2b.bin
cedd764dae51f693036a8d7b6e1b58c9e6ac00ae77765c095313b0d21257ce34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E2B 8484 bytes

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