Malicious PDF — malware analysis report

Static analysis result for SHA-256 14d063a32d8e5fd7…

MALICIOUS

PDF

37.1 KB Created: 2020-03-29 15:14:15 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: e65a034361a69d1738ffec8a02a934b0 SHA-1: 4c1e98e810f709a9406aa7aa3cf97284c9376a39 SHA-256: 14d063a32d8e5fd72bbd2c41149252d27a7d4abdd8387970005d5f82e53ff9fd
96 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, disguised as a Volvo owner's manual, which is a common lure for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the presence of a link farm heuristic further supports the malicious intent. The document body, though partially corrupted, contains the lure text and several URLs pointing to potentially malicious content.

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://74-123-75-191.mgwnet.com/uploads/1/3/1/0/131070357/131070357.html#volvo+xc70+owners+manual
    • http://shoposwegoliveoswego.org/uploads/1/3/0/4/130476200/tupigu.pdf
    • http://laffertyarms.com/uploads/1/3/0/5/130541641/2514dc37.pdf
    • http://ck8328391.com/uploads/1/3/1/3/131379402/vunuwazeza.pdf
    • http://michaelandmichelangelo.com/uploads/1/3/0/5/130589444/016deef6ba0c.pdf
    • http://capitalcommercialpainting.com/uploads/1/3/0/3/130313178/7434404.pdf
    • http://cadencechiassonlmft.com/uploads/1/3/0/3/130313495/2005680.pdf
    • http://evaairways.org/uploads/1/3/0/4/130489228/vapatesudiwifenefo.pdf
    • http://miriamstambourine.com/uploads/1/3/0/6/130622095/c504450d76.pdf
    • http://gpsintel.us/uploads/1/3/0/7/130739478/5051803.pdf
    • http://hckhealthcare.com/uploads/1/3/0/9/130969430/tunabizeb-potoxe.pdf
    • http://businessplus-site-editor.com/uploads/1/3/0/5/130588267/neziw.pdf
    • http://bestcbddistributing.com/uploads/1/3/0/7/130776514/jenaguvepike_tijidozuweno_kisogixoxira.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_off000067e1.bin
cd8663b324c976c9deaefbadedffd4abd3c9084a24edd5e4c6b4fc2669dcaec0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67E1 7912 bytes

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