Malicious PDF — malware analysis report

Static analysis result for SHA-256 3088d5f9b7bf1446…

MALICIOUS

PDF

34.8 KB Created: 2020-05-18 09:41:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 792cc0ff6167b157cd6d441d94c71fb1 SHA-1: 69c8f11aed938e345ccc9bb51bfdd7621932b7e0 SHA-256: 3088d5f9b7bf1446a711f56b1a12ae23d1d8b5dc212ca79c31b01c300bfab2dc
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The document body itself is heavily obfuscated and appears to contain metadata related to its creation, but the primary malicious activity is the mass of embedded URLs.

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://intuitive-arts-lcs.org/uploads/1/3/1/4/131454859/131454859.html#los+aditivos+alimentarios+corinne+gouget+pdf
    • http://neworleansultimateguide.com/uploads/1/3/0/8/130874109/rimep-vibefexikerenij.pdf
    • http://perfectsculpturemiami.com/uploads/1/3/0/8/130874386/6822696.pdf
    • http://bpmsreunion.com/uploads/1/3/1/0/131070302/c9a1c7b.pdf
    • http://peteandlily.com/uploads/1/3/0/3/130312973/875431.pdf
    • http://lalasunnyjewels.com/uploads/1/3/0/5/130589442/nupefejixilid_piwawed_galowuxamera.pdf
    • http://winfieldepiscopal.org/uploads/1/3/0/4/130488312/dinepexuxe-zeduzeguxoxe-fodewegaz.pdf
    • http://kvconstruction.org/uploads/1/3/1/3/131383661/5435448.pdf
    • http://fbclee.net/uploads/1/3/0/6/130621052/jasodoz.pdf
    • http://keycores.com/uploads/1/3/0/6/130639851/0c730.pdf
    • http://hewmatt.com/uploads/1/3/1/3/131398288/782612.pdf
    • http://naturesgiftsessentialoils.com/uploads/1/3/1/4/131438419/5194079.pdf
    • http://coachellapublishing.com/uploads/1/3/0/2/130274032/fimerisoras_rojekutopiritu_zuninagu.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_off000059a4.bin
1beb9cba23b451824e090a52462a90772f0154a81149cdf8614c0368a87437ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59A4 11188 bytes

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