Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9a95f1376c3e7e0…

MALICIOUS

PDF

48.8 KB Created: 2020-03-15 15:01:02 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 861f30f2762031536ec2033f643f4241 SHA-1: e6c53795377b13b98213cdb80a40a27d1acc07d8 SHA-256: c9a95f1376c3e7e0572cbf48d14c0f4b8fca916e75c614f3adebdebf3428e631
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of external links, many of which are numerically or generically named and hosted on unrelated domains, indicating a link farm or SEO spam tactic. The document body, though heavily obfuscated, contains references to skincare and the PDF generation tool, suggesting a lure to external content. The primary heuristic indicates a link farm, with a specific external URI pointing to a .html file. 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://goldcoastbeachpanama.com/uploads/1/3/0/2/130289278/130289278.html#acne+prone+skin+sheet+mask
    • http://www.acnibo.org/uploads/1/3/0/6/130620665/1693316.pdf
    • http://atlshoebank.com/uploads/1/3/0/2/130287502/a836c2fc0.pdf
    • http://le.enthusiastsnetwork.net/uploads/1/3/0/5/130544379/22dbdc33.pdf
    • http://bestwaterfilterever.com/uploads/1/3/0/5/130588980/dumaf.pdf
    • http://usedforklifttrucks.org/uploads/1/3/0/8/130873923/58dfd9c7c445ff.pdf
    • http://shawneyer.com/uploads/1/3/0/5/130588333/vokarugefekuledi.pdf
    • http://www.atenziarecords.com/uploads/1/3/0/3/130313006/df07e4512f9.pdf
    • http://teambassknob.com/uploads/1/3/0/8/130814782/9445018.pdf
    • http://bickfordtutoring.com/uploads/1/3/0/2/130270836/8281998.pdf
    • http://blackhillsbiking.com/uploads/1/3/0/5/130590273/84d175.pdf
    • http://hustle-n-play.com/uploads/1/3/0/6/130621404/kulageza.pdf
    • http://matriarchsinthemaking.com/uploads/1/3/0/5/130588547/ropod.pdf
    • http://kelviron.co.in/uploads/1/3/0/4/130483489/2443.pdf
    • http://sufamilia.org/uploads/1/3/0/5/130542972/rozomasosu.pdf
    • http://mychinesewatch.com/uploads/1/3/0/4/130488451/fegogamakekum_pudipopusetomi_vedogibapu_liliji.pdf
    • http://www.apexmiddleband.com/uploads/1/3/0/8/130814310/f80c5.pdf
    • http://www.swogcharleston.com/uploads/1/3/0/5/130539652/bumipupetexajozumov.pdf
    • http://stmatthewsvoorheesville.net/uploads/1/3/0/5/130551114/tosonexeveduj.pdf
    • http://www.smokeshowingnj.com/uploads/1/3/0/6/130639811/0678c4be433ac8.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_off00007dff.bin
eb76a5cd63fe1a7285be2ee2b21ca50c6fe8821bee3270bc7327e87dccaf8525		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DFF 8508 bytes
font_01_sfnt_off00009ee6.bin
5bff3556cb8d25ef048f2204d3f1576c4b2ed2637a0dd6a3068c57f65ab6df1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9EE6 16548 bytes

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