Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c5ec7bf1f2b93aa…

MALICIOUS

PDF

40.2 KB Created: 2020-05-15 18:02:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94a8e8566530dd68ae28188ebdc38cec SHA-1: a87fb225e73723d6c2948b137dd217b2e4e11b4a SHA-256: 3c5ec7bf1f2b93aaad833b2f83a317a7ae1aa09377b60bcc3e1185cb40c48f5a
62 Risk Score

Malware Insights

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

The PDF file contains numerous external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting it is part of a link farm or SEO spam operation. The document body, though partially obfuscated, contains text related to 'escape room answers' and references the URLs, indicating a lure to external content. No scripts were extracted, 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://geteam4u.com/uploads/1/3/0/5/130588947/130588947.html#escape+room+answers+level+135
    • http://topdogpuppyrescue.org/uploads/1/3/0/4/130476013/meninep.pdf
    • http://ajantafoods.com/uploads/1/3/0/5/130588811/gidukegokomabejife.pdf
    • http://okrecyclingsolutions.com/uploads/1/3/1/3/131381882/54f80948ca3.pdf
    • http://annmareeshairsalon.com/uploads/1/3/0/7/130739975/dozubi.pdf
    • http://joinusopeningday.com/uploads/1/3/0/5/130551836/1286197.pdf
    • http://vitalrecovery.ca/uploads/1/3/1/4/131453682/b95bf.pdf
    • http://wholewideworld.org/uploads/1/3/0/9/130969633/8828907.pdf
    • http://buildingyourfamilytree.com/uploads/1/3/0/2/130288962/9994212.pdf
    • http://switalia.com/uploads/1/3/1/4/131438157/6347830.pdf
    • http://zumitzeta.com/uploads/1/3/0/3/130324292/3cc3de3b8322.pdf
    • http://prairievisions.org/uploads/1/3/0/6/130604667/mifiwaji.pdf
    • http://stopchasinghim.com/uploads/1/3/1/8/131856141/848215578.pdf
    • http://fortuneadhdcoaching.com/uploads/1/3/1/3/131382828/d04467c12efa7c1.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_off00007338.bin
3114994224df6ce868f723699601feea9a790151eef0236b9fb6e69a642d5d46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7338 10156 bytes

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