Malicious PDF — malware analysis report

Static analysis result for SHA-256 0176d2f2565a77a3…

MALICIOUS

PDF

41.4 KB Created: 2020-03-31 02:47:20 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: ee4f635e63fe71c875b62622e6874d87 SHA-1: 787e60c0b206a48e2f3f5594f19960f16ec72e51 SHA-256: 0176d2f2565a77a331be11e7f2c309b9288d75b66d4e618de5c6088f83ad677e
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The embedded document body text, while partially corrupted, includes a URL that points to a potentially malicious HTML file. This suggests the document is part of a link farm or SEO poisoning campaign, designed to drive traffic to numerous external sites, some of which may host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://oxfordfitfun.com/uploads/1/3/0/4/130488547/130488547.html#cathleen+ni+houlihan+plot+summary
    • http://ofyarnandwood.com/uploads/1/3/0/4/130476921/dasozodono.pdf
    • http://ignitepayments-network.com/uploads/1/3/1/4/131406802/bobovazesajib.pdf
    • http://asiaticsports.com/uploads/1/3/0/6/130639038/difikipitexodu_titamepa_wapesevazo_movolikurazuk.pdf
    • http://winningway.guru/uploads/1/3/0/4/130483577/satujivadabira.pdf
    • http://pnl-therapy.com/uploads/1/3/0/6/130620163/nusogefite.pdf
    • http://theupswingers.com/uploads/1/3/0/6/130620320/gowarodi_mozexidod_fagaper.pdf
    • http://honeyhills.net/uploads/1/3/0/3/130313368/5539062.pdf
    • http://oneshoesurprisetoys.com/uploads/1/3/1/4/131407668/misusazejune.pdf
    • http://aboveandbelow.org/uploads/1/3/0/7/130775830/kevonugibepelego.pdf
    • http://rhaehooper.com/uploads/1/3/0/9/130969552/1165250.pdf
    • http://qualitypawnandjewelry.com/uploads/1/3/0/6/130621812/pipefeg_sasalor_xojuka_venunuvo.pdf
    • http://ordonezconstructioninc.com/uploads/1/3/0/8/130874565/b4ed14e0db4752a.pdf
    • http://bcwealthsolutions.com/uploads/1/3/1/3/131398017/mokorifolomiwamag.pdf
    • http://thenewmangoscafe.com/uploads/1/3/0/6/130639746/1124269.pdf
    • http://laughable.news/uploads/1/3/0/5/130551896/2397160.pdf
    • http://beforeitstoolate.blog/uploads/1/3/0/3/130324357/eba4e7917.pdf
    • http://giancarlopalacios.com/uploads/1/3/0/8/130813144/dimiw-popisevugi-sunulonob.pdf
    • http://bee-strategies.com/uploads/1/3/0/8/130874220/setug.pdf
    • http://zdiagnostics.com/uploads/1/3/0/2/130287842/gutefewumepedozeju.pdf
    • http://straightawayfreight.com/uploads/1/3/0/6/130640067/8601076.pdf
    • http://chicagolatexproducts.com/uploads/1/3/0/5/130545360/174912.pdf
    • http://genevaeyecare.net/uploads/1/3/0/6/130604200/93247d9cfeca8ca.pdf
    • http://colorsofglass.net/uploads/1/3/0/6/130640079/nozijito.pdf
    • http://geppettoproject.com/uploads/1/3/0/4/130483940/f95a2e3ef1626.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_off00007a59.bin
f3f86555e255ec822c68662246ce5f8a177805f07dac2ff201721877320850eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A59 7724 bytes

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