Malicious PDF — malware analysis report

Static analysis result for SHA-256 40e13de4fe5d4d60…

MALICIOUS

PDF

40.3 KB Created: 2020-04-15 08:24:09 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8af6a4c83b5d9157c79d0882b348c80b SHA-1: 44c28754cc86cb11425a5f965675672d01b77a22 SHA-256: 40e13de4fe5d4d608a9bb677ded4c4b4434e7699383e41dd12c7a5f3452131e5
62 Risk Score

Malware Insights

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

The PDF document appears to be a lure, using a plausible-sounding title related to furniture. It contains a significant number of external links, many of which point to other PDF files on different domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, potentially related to SEO spam or malware delivery. No scripts were extracted, limiting the analysis of direct execution capabilities.

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://marmarworld.com/uploads/1/3/1/1/131163610/131163610.html#captain+platform+bed+frame
    • http://justicewatchlive.com/uploads/1/3/0/5/130551576/makaxiveviful.pdf
    • http://carsonsstorenoank.com/uploads/1/3/0/6/130604393/dudogitas-buferumojim.pdf
    • http://worldinfonews.org/uploads/1/3/0/6/130604354/20805b64.pdf
    • http://bitzine.com/uploads/1/3/0/6/130603807/ganomanulu.pdf
    • http://acc-dexmediaconferencecenter.com/uploads/1/3/1/3/131398542/zotipinu.pdf
    • http://attitudeforhire.com/uploads/1/3/1/4/131437561/zixelipimudi_lafuriziro_bixozag.pdf
    • http://samsonzevents.com/uploads/1/3/1/3/131384696/713301ccb042.pdf
    • http://boatinsurance.wales/uploads/1/3/0/2/130287454/tafemakilosumuwedup.pdf
    • http://bardarr.com/uploads/1/3/0/3/130312986/a1fa33.pdf
    • http://kongtiao163.net/uploads/1/3/0/8/130813649/4e38519a4.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_off00007400.bin
0ec112bf02dd4bba69aa20fa7c057a17daed74b225eb5b670c5af5058562351e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7400 8640 bytes

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