Malicious PDF — malware analysis report

Static analysis result for SHA-256 5821a9091315051b…

MALICIOUS

PDF

41.0 KB Created: 2020-03-29 10:06:26 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 897cc4cd3a86f0b905f58a47c8f20721 SHA-1: cee0d7cd4cfef4d8ed2d41ae2b9d7d90b13a0839 SHA-256: 5821a9091315051bd25a6124ff6a06639ab9cae56e48f1e5ff34ac333f0f41d4
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links to other PDF files hosted across numerous domains. This pattern is indicative of a link farm or SEO spam campaign, potentially used to distribute malware or phish for credentials. The document body itself contains 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://gclub.lucky1st.com/uploads/1/3/1/3/131383532/131383532.html#fujifilm+finepix+xp120+review
    • http://namastamyoga.com/uploads/1/3/0/6/130604470/xejizufodenim-kiruzesa.pdf
    • http://www.teamjayray.com/uploads/1/3/0/9/130969717/rufixeke.pdf
    • http://thewebbargain.com/uploads/1/3/0/7/130739495/supoba_wijavijebolat.pdf
    • http://fretbuzz.info/uploads/1/3/0/3/130312986/47189e586d55.pdf
    • http://pitkulup.net/uploads/1/3/0/6/130604934/7367123.pdf
    • http://dcciinspections.com/uploads/1/3/0/8/130813478/xanak.pdf
    • http://magi-online.com/uploads/1/3/0/8/130813835/a91e08b4.pdf
    • http://papomundo.org/uploads/1/3/0/4/130483924/3136523.pdf
    • http://buysomepixels.com/uploads/1/3/1/3/131380011/navekunafakiwisivos.pdf
    • http://mycecilialopez.com/uploads/1/3/0/7/130739864/b2ffb806a.pdf
    • http://gwwatersolutions.com/uploads/1/3/0/2/130288534/b0b3c4e493.pdf
    • http://root.huxfordpoleandtimber.com/uploads/1/3/0/4/130476791/4402241.pdf
    • http://planethealingfilms.com/uploads/1/3/1/1/131163853/5ac9487.pdf
    • http://www.circarenovationsny.com/uploads/1/3/0/4/130476203/3882fb849f.pdf
    • http://doonardmanor.com/uploads/1/3/0/5/130589064/bibat_tupuxujevid_fiditu_gewele.pdf
    • http://makemoneystreaming.com/uploads/1/3/0/4/130436197/21d991fc.pdf
    • http://rgsquared.com/uploads/1/3/0/2/130287929/583673.pdf
    • http://jonkuhnglass.art/uploads/1/3/0/4/130489253/263761.pdf
    • http://fisherparris.com/uploads/1/3/0/5/130588805/nosijawapidul-rawijuzez.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_off0000770f.bin
6d1a7c9de7c153b2bd660f1eced52b3b0e3c3d4dba142a2b1629e7da158afef6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x770F 7652 bytes

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