Malicious PDF — malware analysis report

Static analysis result for SHA-256 a451f00e3a71e910…

MALICIOUS

PDF

35.1 KB Created: 2020-06-15 12:39:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f5102901121d7edd442a6be3bbb66f4 SHA-1: 009a329d8f85a45eed0c2b92241e4e06f765c43d SHA-256: a451f00e3a71e9100643770a706548ceee7a3ca5f5cb0d90d1c503740a8700fe
62 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, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, many of which appear to be part of a link farm designed to artificially inflate search engine rankings. The document body contains text related to acoustic guitar exercises, likely a lure to disguise the malicious intent. The primary goal appears to be directing users to these external resources, which could host further malicious content or phishing pages.

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://lightsupshop.com/uploads/1/3/1/3/131380184/131380184.html#acoustic+guitar+beginner+exercises
    • http://miminikohl.com/uploads/1/3/1/6/131637218/1110277.pdf
    • http://solacegardens.net/uploads/1/3/1/3/131383720/tixofokenav.pdf
    • http://mta-sts.tracymedeiros.com/uploads/1/3/0/4/130483795/5272566.pdf
    • http://store.rebootvb.com/uploads/1/3/0/4/130477864/balimafumije_koxudekakizo_nadori_xofob.pdf
    • http://iamkimcole.com/uploads/1/3/0/5/130541285/2608716.pdf
    • http://resmotors.net/uploads/1/3/1/4/131438211/82b8cfb.pdf
    • http://spartanify.com/uploads/1/3/0/6/130605028/3827347.pdf
    • http://74-123-78-57.mgwnet.com/uploads/1/3/0/7/130775567/031f19aa098.pdf
    • http://americanheritagebakery.com/uploads/1/3/0/6/130621784/gixadupuwiwidowi.pdf
    • http://childrensmuseumofnewnan.com/uploads/1/3/0/5/130589140/712d465375.pdf
    • http://leaderwithpurpose.com/uploads/1/3/0/5/130590353/jawonixilivatewoj.pdf
    • https://ruzugebemem.files.wordpress.com/2020/06/48411490112.pdf
    • https://feruvef.files.wordpress.com/2020/06/wusafuwizuxuvamitep.pdf
    • https://ponatijigap.files.wordpress.com/2020/06/navuko.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_off00005eb3.bin
161d52d3f9fbc41293104f91c6e5302003eeefced200f972207b13045b3540c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB3 9968 bytes

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