Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a1517ccac728276…

MALICIOUS

PDF

34.5 KB Created: 2020-05-30 23:57:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c9b40920c26de57434df1d0d92919fe9 SHA-1: 5491650b9a40783c9e3d6ca155b52a4e07280e1e SHA-256: 1a1517ccac7282765c0c6c8a9d35f5fb3d58143965a466d4dbde1e8b213226ba
78 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, many of which appear to be part of a link farm designed to direct users to potentially malicious content. The document's content, though partially obfuscated, includes phrases suggesting a lure, such as 'Sql query tutorial with examples pdf', and the presence of a 'download button' heuristic further supports a malicious intent. The primary goal appears to be directing users to external sites via these links.

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://mykarl.info/uploads/1/3/0/6/130604487/130604487.html#sql+query+tutorial+with+examples+pdf
    • http://seamaguire.com/uploads/1/3/0/5/130550764/9634230.pdf
    • http://rockwellparkdevelopment.com/uploads/1/3/1/6/131606670/db04f7f.pdf
    • http://9f60cmj002.com/uploads/1/3/0/5/130590357/45a95.pdf
    • http://bostonstagechildrenhistory.com/uploads/1/3/0/6/130604176/c813d881f59.pdf
    • http://mortgageinsuranceontario.ca/uploads/1/3/0/7/130740298/4615558.pdf
    • http://hostmaster.captainrazor.com/uploads/1/3/0/5/130544132/vevanek-wagifikud.pdf
    • http://giftyandnoah.com/uploads/1/3/0/3/130379517/ce0f88d39f02e9.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_off00005a2c.bin
a60b5b3ee62e2a71d07887976a5daf6941f30c9978a28be5d624706058f7afa4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A2C 10936 bytes

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