Malicious PDF — malware analysis report

Static analysis result for SHA-256 02fe4f9bb29624a1…

MALICIOUS

PDF

95.0 KB Created: 2020-03-24 16:50:04 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: aabf4faa632da46ea50e453bff8027d6 SHA-1: c03c40df5a85aeedabb1d70384f82fc98c3f5741 SHA-256: 02fe4f9bb29624a172e89d0bf2f3669f0c7e02c0423219d99c4f0e87a2d7190e
96 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, characteristic of a link farm or SEO spam campaign. The document body mentions 'Mercedes c180 breakers' and includes a URL pointing to a similar topic, suggesting a lure to attract clicks. The ML classifier strongly indicated maliciousness, and the presence of numerous external links supports this assessment.

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://colorado-es.com/uploads/1/3/0/4/130483443/130483443.html#mercedes+c180+breakers
    • http://www.leandreamers.com/uploads/1/3/0/6/130621946/dotumetex-woxigabud-sufonir-bagopakiwebivup.pdf
    • http://westwindcafe.com/uploads/1/3/0/6/130604150/tixisoratu.pdf
    • http://www.2amepiphany.com/uploads/1/3/0/6/130639054/wujikafatagawolixez.pdf
    • http://mail.ccsdetroit.org/uploads/1/3/0/8/130813783/7105428.pdf
    • http://gowlands.com/uploads/1/3/0/5/130590564/3aeee.pdf
    • http://heartwoodsurfboards.com/uploads/1/3/0/7/130775355/gajemiratilezo-maxavodur.pdf
    • http://mayatcrawford.com/uploads/1/3/0/6/130604004/dugabema.pdf
    • http://highjohnroot.com/uploads/1/3/0/6/130621458/279b4ecca8fb.pdf
    • http://supporter.stockmi.com/uploads/1/3/0/5/130540359/0aba6f13c0d8872.pdf
    • http://mail.wellroundedmom.com/uploads/1/3/0/6/130621545/lezobizarexil.pdf
    • http://wlmproperties.net/uploads/1/3/0/6/130604030/5347647.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_off00014dfd.bin
12f67d60d19b756e962e51d92d6601fb590930509848c983350016865d697a1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14DFD 8452 bytes

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