Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c0e9e70741d1450…

MALICIOUS

PDF

47.2 KB Created: 2020-03-19 10:39:06 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: a5348fbbab5feba9c00641c4b92e5ce8 SHA-1: bdec71169cbc0410c3ea148ae2d4a01b55c890cd SHA-256: 7c0e9e70741d1450c37b0dda10b419f3b4e38f32e454af8d7a0364a88b5c0f2f
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are structured as SEO-optimized PDF links, suggesting a link farm or redirection scheme. The document body text, though partially obfuscated, includes a URL that appears to be a lure for a car manual, indicating a potential phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

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://1890joyridgeroad.com/uploads/1/3/0/8/130814174/130814174.html#2007+mercedes+ml350+owners+manual+pdf PDF link annotation
    • http://havebagswilltravelbykelly.com/uploads/1/3/0/5/130551115/05750cfc6ed039.pdfIn PDF document text
    • http://fieldhousemanagement.com/uploads/1/3/0/4/130488773/7e9d16.pdfIn PDF document text
    • http://athenahighlibrary.com/uploads/1/3/0/5/130543941/12787c5feaf0.pdfIn PDF document text
    • http://365daysofkink.com/uploads/1/3/0/6/130639591/b13a43cdb.pdfIn PDF document text
    • http://hostmaster.irissrl.org/uploads/1/3/0/4/130476786/sinapaxov.pdfIn PDF document text
    • http://lydiapion.com/uploads/1/3/0/6/130603761/e07e9e1d.pdfIn PDF document text
    • http://readytoadopt.ca/uploads/1/3/0/3/130323232/83ee5718b.pdfIn PDF document text
    • http://nihaostyle.com/uploads/1/3/0/5/130550715/ff89fac9774bf7.pdfIn PDF document text
    • http://anytime.insure/uploads/1/3/0/3/130379428/2649216.pdfIn PDF document text
    • http://fosconline.org/uploads/1/3/0/3/130323250/bofetonevex-xidujif.pdfIn PDF document text
    • http://www.tim-abbot.com/uploads/1/3/0/7/130739081/8861579.pdfIn PDF document text
    • http://portugalproperty-buyfromthebank.com/uploads/1/3/0/7/130775520/gaputinasotipo_murafis.pdfIn PDF document text
    • http://stryienska.com/uploads/1/3/0/4/130476469/93479c36.pdfIn PDF document text
    • http://walkiesnairn.co.uk/uploads/1/3/0/6/130639980/jopeje.pdfIn PDF document text
    • http://www.rosedalegrove.com.au/uploads/1/3/0/7/130775011/df7265b83c825.pdfIn PDF document text
    • http://guitarlessonsbath.net/uploads/1/3/0/3/130379294/jaziwibujin_sumep_bazabebonirewin_josazuf.pdfIn PDF document text
    • http://mx66.farmfreshsoaps.com/uploads/1/3/0/3/130379675/fepun.pdfIn PDF document text
    • http://repairplumberfortworth.net/uploads/1/3/0/6/130604541/b5ec1.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008e4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E4F 8732 bytes
SHA-256: eb46182653037a1cfca39ef0e02c0accad611ba21e771559e6cb45e5d6037a74