Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b221d4fa4c93363…

MALICIOUS

PDF

40.4 KB Created: 2020-03-25 04:39:48 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: a18541ad1e2f0608785ebe116f2fd5a8 SHA-1: 24d66939afd80422d1ac0c52a83c0b18dbb6079b SHA-256: 8b221d4fa4c933631adab60486c12de0a34c59206e606f93b0828051a3fba194
92 Risk Score

Malware Insights

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

The PDF file contains a large number of external links to other PDF files hosted on various domains, a technique often used for SEO poisoning or to redirect users to malicious content. The ML classifier strongly indicated maliciousness. The document body contains what appears to be search terms, further supporting the SEO lure hypothesis.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://hitekmaster.net/uploads/1/3/0/6/130640181/130640181.html#stihl+fs+55+rc+parts+list
    • http://labodylipo.com/uploads/1/3/0/6/130604030/pazowex.pdf
    • http://www.tipsyglass.com/uploads/1/3/0/8/130813364/1795606.pdf
    • http://lauracampbelldesign.com/uploads/1/3/0/6/130604393/tilomuvuj.pdf
    • http://www.romanb3.com/uploads/1/3/0/2/130289515/pewopakinesere.pdf
    • http://mullgetsresults.com/uploads/1/3/0/5/130546486/gugufodaxinan.pdf
    • http://whitneyblairnorris.com/uploads/1/3/0/6/130604720/1630977.pdf
    • http://www.thrivegrouplcsw.com/uploads/1/3/0/2/130272266/163d11282.pdf
    • http://reachbmctraining.com/uploads/1/3/0/6/130620427/zajonekapas.pdf
    • http://www.pyritequeen.com/uploads/1/3/0/6/130639593/5006931.pdf
    • http://paozinhodeliciavirginia.com/uploads/1/3/0/4/130476970/c0e1710be32ae1.pdf
    • http://360pro.be/uploads/1/3/0/2/130274322/dd73a2d5.pdf
    • http://cavalierspublishing.com/uploads/1/3/0/7/130776886/9f685886976.pdf
    • http://baanekspres1995.com/uploads/1/3/0/6/130603811/bovexa-bodefeni.pdf
    • http://mammothlife.com/uploads/1/3/0/6/130640119/65c8a91c6.pdf
    • http://www.feedtheworkout.com/uploads/1/3/0/6/130604233/tijagefivelowa-tojor-lixasaf-ginibigarijef.pdf
    • http://www.thetravellingnannyblog.com/uploads/1/3/0/4/130435682/metukufote_fezapitubo.pdf
    • http://www.schemeconsulting.com/uploads/1/3/0/6/130604902/fd739a2715183cc.pdf
    • http://jeromemaplesphotography.com/uploads/1/3/1/0/131070998/fogexom_xebenikoxogurar_fojiwakedimuda.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_off000074f5.bin
aaff65b8699a9b5af772f15b47cf61bb17af82f9d87355a79303080e1ca75524		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74F5 8088 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.