Malicious PDF — malware analysis report

Static analysis result for SHA-256 52cdf5669d76c329…

MALICIOUS

PDF

35.6 KB Created: 2020-04-01 15:34:51 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9375550fdf6d26a09c7304bd7ee9cb61 SHA-1: b10f48e906d95c009682c659e0483bca627a6bf1 SHA-256: 52cdf5669d76c329bcea6218f48067c2ed4f4377fb2b5c37d68442adc7a3d013
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially obfuscated, contains a URL pointing to 'rsmobilephonesales.com' and also lists numerous other PDF files hosted on various domains. This suggests the primary purpose is to act as a link farm, potentially for SEO manipulation or to distribute further malicious payloads via the linked PDFs.

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://rsmobilephonesales.com/uploads/1/3/1/4/131453633/131453633.html#letra+palabras+para+julia+paco+ibanez
    • http://d2jmusic.com/uploads/1/3/0/6/130620393/88bee.pdf
    • http://slavethemovement.com/uploads/1/3/0/8/130874313/2875323.pdf
    • http://xneedle.com/uploads/1/3/0/7/130739294/tuwuvemawuduwozewe.pdf
    • http://outdoordistrictco.com/uploads/1/3/0/4/130489958/7aba70c.pdf
    • http://my-pet-blog.com/uploads/1/3/0/5/130543663/6f88c.pdf
    • http://glenventuresllc.com/uploads/1/3/0/3/130379213/c29687d131c12d4.pdf
    • http://myfoundation.us/uploads/1/3/0/8/130814851/22d85.pdf
    • http://espiha.com/uploads/1/3/0/5/130539218/vubizusefolaninetu.pdf
    • http://callthetechguys.com/uploads/1/3/0/2/130289233/lilerovokajiveposu.pdf
    • http://furrysuitcards.com/uploads/1/3/0/2/130273978/e93d2bb1.pdf
    • http://gonzalesprimarycare.com/uploads/1/3/0/6/130621509/3711529.pdf
    • http://blessyourhearthbooks.com/uploads/1/3/1/4/131438294/xedakojarul_suzefomozenevij_lazuxulodevi.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_off00005fe0.bin
d478c233582aa066a764bd1d442ce64c7099dfd03ce307171e66713ac4362b4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE0 8708 bytes

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