Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c43edd29c56124b…

MALICIOUS

PDF

37.8 KB Created: 2020-04-10 22:15:48 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: a5be53631aa7660bfb6a0c6b84ce9684 SHA-1: 6f8c86a6937a9a893d665f26fb279ac633b91dbe SHA-256: 9c43edd29c56124b51e0de8e931da718d295dc58f6a1752de6be976d201b2248
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, many of which point to PDF files with numeric or generic slugs, indicating a link farm or SEO abuse tactic. One of the primary URLs, http://74-123-79-160.mgwnet.com/uploads/1/3/0/8/130873732/130873732.html#sony+cdpcx455+400+disc+megastorage+cd+changer+manual, is presented as a manual, likely a lure to direct users to malicious content. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://74-123-79-160.mgwnet.com/uploads/1/3/0/8/130873732/130873732.html#sony+cdpcx455+400+disc+megastorage+cd+changer+manual
    • http://moneygetajob.com/uploads/1/3/0/3/130313468/5a2d314b.pdf
    • http://sandymuirfoundation.com/uploads/1/3/1/4/131454522/4580050.pdf
    • http://luxcheveux.co/uploads/1/3/0/7/130775742/rixawudaxetel_vugipupeku_bakuge.pdf
    • http://theexpertdoc.com/uploads/1/3/1/4/131455722/govumed_wunazixako_mosikulerutezub_kerafakag.pdf
    • http://maulmonsters.com/uploads/1/3/0/8/130874021/xobonapa.pdf
    • http://nanlaird.com/uploads/1/3/1/3/131380504/1aff8625c.pdf
    • http://nacanation.com/uploads/1/3/0/9/130969974/ed58e89e6a.pdf
    • http://betterwithcontxt.com/uploads/1/3/1/3/131379860/wobekupawam.pdf
    • http://addictionrevenuemanagement.com/uploads/1/3/1/4/131406698/luminefabizire_mukofa_jovimegibugijo.pdf
    • http://goldenberggroup.ca/uploads/1/3/0/8/130874205/bimeguxigenin.pdf
    • http://moderndaymira.com/uploads/1/3/0/8/130874522/pogaro.pdf
    • http://feelslikehometogether.com/uploads/1/3/0/5/130542860/447742.pdf
    • http://andwatnow.com/uploads/1/3/1/1/131164387/dabuti_gazawezigi_pimiwar_vifexutoxanudiz.pdf
    • http://nanlaird.com/uploa
    • 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_off00006c2a.bin
550703403eede71075cfa19d5db947375556ecf20d90e01bee8a0659035feada		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2A 7832 bytes

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