Malicious PDF — malware analysis report

Static analysis result for SHA-256 8766f3ac6cb57fe0…

MALICIOUS

PDF

30.9 KB Created: 2020-04-11 07:39:11 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7cfbc797f7cc4b189ebd711bbda639f2 SHA-1: ca70a5dff91de7a054567b9113b75910fb72ae0f SHA-256: 8766f3ac6cb57fe0887101481891a9ff3f2fe37088e27ef57ecc552a7f874193
62 Risk Score

Malware Insights

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

The PDF document contains a significant number of external links, identified as a PDF SEO link farm. The primary purpose appears to be directing users to a variety of unrelated domains, likely to manipulate search engine rankings or to host further malicious content. No scripts were extracted from this sample, limiting the analysis of direct payload delivery mechanisms.

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://74-123-78-122.mgwnet.com/uploads/1/3/0/8/130874252/130874252.html#pendleton+store+nyc
    • http://reconnecttopurpose.com/uploads/1/3/1/4/131453221/9809401.pdf
    • http://fazendamosa.com/uploads/1/3/0/4/130483799/ferijovabinodadap.pdf
    • http://leyendecker-landscape.com/uploads/1/3/0/6/130604083/nisovumufigig.pdf
    • http://winkfashionandsalon.com/uploads/1/3/0/5/130541308/2696135.pdf
    • http://valleygardencenterllc.com/uploads/1/3/1/3/131398094/tibobes-dagovidasariso-janat-dusazogududopu.pdf
    • http://virtualdigitalbank.net/uploads/1/3/0/3/130379912/vuxupuwo-gokiguxex.pdf
    • http://cannaquenchers.com/uploads/1/3/0/4/130483305/8241719.pdf
    • http://tereden.com/uploads/1/3/0/8/130813059/b3c9c68fbb4.pdf
    • http://bsch-tagderberufsbildung.org/uploads/1/3/0/5/130590030/wexaxoguwuwunabupu.pdf
    • http://axiergonzalez.com/uploads/1/3/0/4/130488328/muberutagafoberasit.pdf
    • http://art-of-rude-artist.com/uploads/1/3/1/3/131398141/9117163.pdf
    • http://handstosounds.com/uploads/1/3/1/4/131437436/af37e.pdf
    • http://katobikewalk.com/uploads/1/3/0/2/130273850/a0fec.pdf
    • http://portalindustries.org/uploads/1/3/0/3/130313120/283102.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_off00005224.bin
52ed556727d639911c772a0e5edf2c1403bf2288cf666d1afc006ba470e9f4a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5224 7112 bytes

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