Malicious PDF — malware analysis report

Static analysis result for SHA-256 951af350096e941e…

MALICIOUS

PDF

40.1 KB Created: 2020-03-30 07:47:05 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 951fad383a5ac6e6290caa74d5a17fd3 SHA-1: 73d9ba22af50a8560e2b859c98b988cae40870fa SHA-256: 951af350096e941ecaa3f90a53c3e185d61d8c9c9058f03cad3026582917f984
70 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files hosted on various domains. This pattern is indicative of SEO poisoning or a link farm designed to distribute malicious content or traffic. The presence of a 'download button' heuristic further supports the idea that the document is intended to trick users into clicking links and downloading files. No scripts were extracted, limiting the ability to determine the exact payload.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jessica-and-jaso-1.rominastiebenphotography.com/uploads/1/3/0/7/130776452/130776452.html#epson+workforce+wf-7620+scanner+software
    • http://allisoninserro.com/uploads/1/3/0/2/130287456/00fdd28.pdf
    • http://underdogchamps.com/uploads/1/3/0/7/130738603/7828051.pdf
    • http://iroomonline.com/uploads/1/3/0/9/130969499/7f675ed2daee075.pdf
    • http://openarmsbanduk.com/uploads/1/3/0/5/130588780/9365016.pdf
    • http://misthotelsandresorts.com/uploads/1/3/0/5/130551927/b1942003b3a3b.pdf
    • http://jimspottery.com/uploads/1/3/0/7/130739935/jimerogag.pdf
    • http://befunnytulsa.com/uploads/1/3/0/7/130776434/3186631.pdf
    • http://wellnes-croatia.com/uploads/1/3/0/5/130550758/ligefuwuxidilu.pdf
    • http://siddixit.com/uploads/1/3/0/7/130740164/74f559ee.pdf
    • http://neisweets.com/uploads/1/3/0/3/130312986/648e977b8186.pdf
    • http://holimoleny.com/uploads/1/3/1/4/131438379/dc7e99e22417237.pdf
    • http://dawsonwallets.com/uploads/1/3/0/5/130539494/1303004.pdf
    • http://roofingjupiterfl.com/uploads/1/3/0/4/130436089/db23140b.pdf
    • http://baraspektrum.com/uploads/1/3/1/3/131379219/pefepamafixusepak.pdf
    • http://gis4gratitude.com/uploads/1/3/1/1/131164475/480984b.pdf
    • http://helpmehome.net/uploads/1/3/0/8/130814293/juduv.pdf
    • http://rogettenicolas.com/uploads/1/3/0/6/130639511/midit.pdf
    • http://blackfriday.dng.ie/uploads/1/3/1/4/131438310/d7c12c0c1.pdf
    • http://ideageeks.net/uploads/1/3/0/6/130639493/vilojexederiwirozive.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_off00007186.bin
a1e714e91587480b6bb617b04085c43389e93c78bbdc72a86dc5d60c2f4a3d22		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7186 8716 bytes

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