Malicious PDF — malware analysis report

Static analysis result for SHA-256 87c563632e2cbcdf…

MALICIOUS

PDF

49.7 KB Created: 2020-03-19 07:12:35 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 34e44ec3415fceca35c31e394f7c8a85 SHA-1: c587e747c12164702c64119e4da47c42aac7d214 SHA-256: 87c563632e2cbcdf59e1c21169e2d3d8daddf52a55cb826f7debe65b68468ba2
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or SEO manipulation tactic. The embedded URLs point to various domains, likely serving as a distribution point for further malicious content or phishing pages. No scripts were extracted, but the presence of numerous external links indicates a high likelihood of malicious intent.

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://ciggysound.com/uploads/1/3/0/6/130604563/130604563.html#abreviatura+de+carretera+nacional PDF link annotation
    • http://hanaleivodka.com/uploads/1/3/0/8/130874554/dolibogasodibatu.pdfIn PDF document text
    • http://blancameira.com/uploads/1/3/0/6/130621124/6275587.pdfIn PDF document text
    • http://sarahlawsondesign.com/uploads/1/3/0/6/130604558/sejijolafi.pdfIn PDF document text
    • http://autodiscover.equident.com.au/uploads/1/3/0/4/130477048/supukajekodo.pdfIn PDF document text
    • http://lemaitresmoker.nl/uploads/1/3/0/6/130621043/5028655.pdfIn PDF document text
    • http://www.cellrite.co/uploads/1/3/0/4/130488416/jerupotibol.pdfIn PDF document text
    • http://bugsthathelp.com/uploads/1/3/0/5/130588922/77beaee6c18a.pdfIn PDF document text
    • http://ardmorevetservices.com/uploads/1/3/0/6/130640021/vifesabi-kuseno.pdfIn PDF document text
    • http://hotwinedeals.com/uploads/1/3/0/5/130589182/7428665.pdfIn PDF document text
    • http://pof-updatecall.com/uploads/1/3/0/7/130776887/6091879.pdfIn PDF document text
    • http://arsdoceopress.com/uploads/1/3/0/8/130874264/a32e6f23d3206d6.pdfIn PDF document text
    • http://donotpanicitsorganic.com/uploads/1/3/0/9/130969418/pefazasodoserawizigu.pdfIn PDF document text
    • http://www.science4kids101.com/uploads/1/3/0/5/130550654/5978298.pdfIn PDF document text
    • http://lorimerclarkeart.com/uploads/1/3/0/9/130969738/39fb519f7bfad5f.pdfIn PDF document text
    • http://summerfoxart.com/uploads/1/3/0/6/130620797/meweriwopu.pdfIn PDF document text
    • http://snackopedia.com/uploads/1/3/0/2/130287878/5636469.pdfIn PDF document text
    • http://louisvillepsychiatry.com/uploads/1/3/0/6/130604693/gozonefewo.pdfIn PDF document text
    • http://lisareimann.com/uploads/1/3/0/6/130603782/2061548.pdfIn PDF document text
    • http://divinesoulcenter.com/uploads/1/3/0/5/130546391/duweze-feruduxasubonim.pdfIn PDF document text
    • http://www.watchmepass.com/uploads/1/3/1/0/131069762/aef5c6.pdfIn PDF document text
    • http://cryosapsllc.com/uploads/1/3/0/6/130621209/sugolew.pdfIn PDF document text
    • http://columbusbalance.com/uploads/1/3/0/8/130874497/7282220.pdfIn PDF document text
    • http://abqroofs.com/uploads/1/3/0/3/130323092/264dcf.pdfIn PDF document text
    • http://cmcparadigms.com/uploads/1/3/0/6/130604716/zewaxujaka-vapipenepewi-jixaliwejut.pdfIn PDF document text
    • http://northshoreplaytherapy.com/uploads/1/3/0/2/130271229/nosebazuxiwevijebow.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008a92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A92 9632 bytes
SHA-256: 96c8d1e0080c4f2b47e10aecb8909acc8add6442e9870363aef2cf2ce70d766c
font_01_sfnt_off0000ad78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD78 2652 bytes
SHA-256: e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea

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