Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f8ade827cf4f738…

MALICIOUS

PDF

35.4 KB Created: 2020-05-22 06:42:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74d53d0444302adf72364aff01d43eb2 SHA-1: 00d83391695408747af33f2dfc35986361b1d486 SHA-256: 4f8ade827cf4f738206a62cafd9d16806ca30bf589995377653cb7fddcd2dc3c
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to PDF files on unrelated domains. This suggests a link farm or SEO manipulation tactic. One of the embedded URLs is http://adsl-63-204-18-52.benefitplans.org/uploads/1/3/0/6/130605339/130605339.html#convair+air+conditioner, which may be a lure or a redirect to malicious content. No scripts were extracted from this sample.

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://adsl-63-204-18-52.benefitplans.org/uploads/1/3/0/6/130605339/130605339.html#convair+air+conditioner
    • http://tedandromainthemorning.com/uploads/1/3/0/7/130739635/1948027.pdf
    • http://beaux-and-arrow.com/uploads/1/3/0/2/130288603/pitagi.pdf
    • http://ballinfitness.com/uploads/1/3/1/3/131397981/jarujupolirosisi.pdf
    • http://jellicofourseasonflorist.com/uploads/1/3/1/3/131379031/7835339.pdf
    • http://sugarbugbakery.org/uploads/1/3/0/7/130776275/dedexolunaze.pdf
    • http://fritsdecobel.com/uploads/1/3/1/4/131437689/6b70567cddadf.pdf
    • http://rapkins.com/uploads/1/3/0/6/130620537/ganojaveromuv.pdf
    • http://designandconquerhomes.com/uploads/1/3/1/4/131437216/mofisovidal_wimawato_ribofakula_robitoparegusog.pdf
    • http://ridingmindfully.com/uploads/1/3/0/6/130604220/fedejenusasug.pdf
    • http://stayviveproductions.com/uploads/1/3/1/1/131164562/6706005.pdf
    • http://atelierplay.com/uploads/1/3/0/3/130323532/bififew.pdf
    • http://octaquad.se/uploads/1/3/0/5/130543546/9629057.pdf
    • http://bohmsquad.com/uploads/1/3/1/4/131437099/9901491.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_off00005cfb.bin
69bb74ddda754a23880bfd8245578dfc1418d2c630215b3e00e979857972a76e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CFB 11180 bytes

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