Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fbfe07ddd53cdf3…

MALICIOUS

PDF

72.8 KB Created: 2020-03-15 08:50:43 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7561ad698fbbd7e1ca1e6a74d120428f SHA-1: 040890a6c93ba03fa515f450766f34c29d871efc SHA-256: 3fbfe07ddd53cdf394a5e3ca1099bc6a6c83550a2e0ab3c3e6eb1b7d04e038f8
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, a technique often used for SEO spam or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, indicating a likely attempt to manipulate search engine results or distribute further malware. No scripts were extracted from this sample, limiting the analysis of direct payload execution.

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://www.elementalrockcreature.com/uploads/1/3/0/4/130488251/130488251.html#arjun+reddy+heroine+images
    • http://www.suzannegibbs.org/uploads/1/3/0/9/130968981/5ea79.pdf
    • http://createoregon.com/uploads/1/3/0/8/130874031/286dc.pdf
    • http://chameleonprojects.co.uk/uploads/1/3/0/5/130545742/4527431.pdf
    • http://sunkisseddaisyllc.com/uploads/1/3/0/2/130272981/45ac2757a2efe35.pdf
    • http://northpointebaptistministries.com/uploads/1/3/0/4/130483756/eb75ba946ea.pdf
    • http://www.mnmdata.com/uploads/1/3/0/4/130476060/9e0df9e7fea75.pdf
    • http://www.brancleaningservices.com/uploads/1/3/0/7/130775138/fewuvijujunowusug.pdf
    • http://wilkes-barrearea.com/uploads/1/3/0/7/130739233/numuwi.pdf
    • http://dreamgearstudios.com/uploads/1/3/0/6/130621203/554179.pdf
    • http://dserby.org/uploads/1/3/0/2/130270811/tomakobodexuzad.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dde2.bin
2cf8dcbf0f3d072d21df19970bed0c94600d5f6c31faedb9e4f9c0f80f4c0e69		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDDE2 8520 bytes
font_01_sfnt_off0000feb4.bin
32b54217619f9438721b423dc2f4f4da0f78781b0811ea49af2be6b0310ecf56		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFEB4 16164 bytes

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