Malicious PDF — malware analysis report

Static analysis result for SHA-256 06d41a3f726efa11…

MALICIOUS

PDF

42.8 KB Created: 2020-03-28 05:20:46 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: fa78c4d47e41151e7eed413881b15d69 SHA-1: a0880004db4b7c03efc5efc766e907b8762a7948 SHA-256: 06d41a3f726efa11535a3b207168b8d13a49ea7d8a20bbb0bd6dc3c73852eca2
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a mass external PDF link farm, with numerous URLs pointing to other PDF files. The document body text, though partially corrupted, includes a URL that appears to be a lure for a 'daily self care checklist'. The presence of a large number of external links suggests an attempt to distribute or host malicious content across multiple domains, likely for SEO manipulation or to evade detection.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://mmhac.com/uploads/1/3/1/4/131409717/131409717.html#daily+self+care+checklist
    • http://crosbytreeservice.com/uploads/1/3/1/0/131070152/4261909.pdf
    • http://cleanallpm.ca/uploads/1/3/0/2/130273589/walowometiredon-xejabe-didesowoboxoz.pdf
    • http://incolorartgallery.com/uploads/1/3/0/7/130775969/vunozazenax.pdf
    • http://webdisk.algonquinparkcanoetrips.com/uploads/1/3/0/6/130604903/7277600.pdf
    • http://tomsknobs.com/uploads/1/3/1/0/131069812/b4d998b.pdf
    • http://pieceofmindproject.com/uploads/1/3/0/8/130874391/d57b6.pdf
    • http://keith.secure2ware.com/uploads/1/3/0/6/130621158/zipuja-rodujanodutex-tenumidafajiwik-dubeza.pdf
    • http://penkiescafe.com/uploads/1/3/0/5/130551405/pudef.pdf
    • http://propertypeninsula.com/uploads/1/3/0/8/130874606/9373627.pdf
    • http://mx.olol-sf.org/uploads/1/3/0/7/130740573/jezus.pdf
    • http://mkh-mfg.com/uploads/1/3/0/2/130289748/49020c76175.pdf
    • http://www.jimmydonn.com/uploads/1/3/0/6/130639605/zamelizipugarexupo.pdf
    • http://throwbacknation1.com/uploads/1/3/0/7/130775451/61ae77b3c.pdf
    • http://ingridmunoz.com/uploads/1/3/0/3/130379740/kubufotuvaw.pdf
    • http://firemaker.org/uploads/1/3/0/5/130539494/1207944.pdf
    • http://guidedastrologyanalysis.com/uploads/1/3/0/2/130289272/746189.pdf
    • http://harmonymindfulness.com/uploads/1/3/0/2/130272903/bda8d797526f3c.pdf
    • http://savethedaycorp.com/uploads/1/3/0/8/130814017/43437.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_off00007ee5.bin
eef7e66d12ba781436e1372da2787166b5db794f6925982cb7afea4b97c5fffb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE5 7996 bytes

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