Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fc6d3d8a3bddb07…

MALICIOUS

PDF

38.1 KB Created: 2020-04-04 05:53:00 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3e8555f60871a169683f0de4030a12bc SHA-1: 68d2d81ff3f8aed057d04d404919842b9a8c3227 SHA-256: 2fc6d3d8a3bddb07e4c00a96fc66485836bd2fef702e4d2f6036e85b4a6db77e
70 Risk Score

Malware Insights

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

The PDF document contains numerous external links, a technique often used for SEO poisoning or to redirect users to malicious content. The document body text suggests a lure related to a 'social media management proposal', which is likely a pretext to encourage users to click the embedded links. The primary heuristic indicates a PDF link farm, suggesting the document's main purpose is to distribute links to other potentially malicious PDFs.

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.
  • 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
  • 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://genesistransportsolutions.com/uploads/1/3/0/6/130639861/130639861.html#social+media+management+proposal+pdf
    • http://smartchitchat.com/uploads/1/3/1/4/131438348/jimafapax_ledajibinereb_namasodobiga.pdf
    • http://nationalpolygraphacademy.net/uploads/1/3/0/4/130488688/tadimuzawo_ruvirigu.pdf
    • http://vivaegishealth.com/uploads/1/3/1/4/131409244/4140b118453.pdf
    • http://shahezuan.com/uploads/1/3/0/3/130379479/68385.pdf
    • http://therealsheaqueen.info/uploads/1/3/0/5/130542727/2526350.pdf
    • http://cdlsinc.com/uploads/1/3/0/5/130551445/3380306.pdf
    • http://precisionmobilellc.com/uploads/1/3/0/5/130539843/befurali.pdf
    • http://millerfamilylawn.com/uploads/1/3/0/4/130436261/namuvujigobofaf_zupokex_witetumarinaze.pdf
    • http://westchesterbakery.com/uploads/1/3/0/2/130288486/gonevek.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_off00006cc4.bin
924cb0807a4b026d5fceb5a522e5983e2e8a909b0e2d56f71be8dc9013fb2e36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC4 8032 bytes

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