Malicious PDF — malware analysis report

Static analysis result for SHA-256 fba2337f74b4497a…

MALICIOUS

PDF

42.8 KB Created: 2020-05-20 13:54:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-15
MD5: 56870bba1ce0c75e40d79dfd7f10f861 SHA-1: b35de9dc45893ba70ab45f11a2f56ace4b15e700 SHA-256: fba2337f74b4497ad9f6439dfb0077acefe3494017cad77b686594d24546188e
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 as a PDF_SEO_LINK_FARM heuristic. The document body text, though partially corrupted, includes the phrase 'Empaque y embalaje de ropa para exportar' and references 'wkhtmltopdf', suggesting a lure related to export packaging. The primary attack pattern involves directing users to a multitude of external PDF files hosted on various domains, likely to distribute further malicious content or engage in SEO spam.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://seven16litt.com/uploads/1/3/1/3/131380288/131380288.html#empaque+y+embalaje+de+ropa+para+exportar PDF link annotation
    • http://escolaximnasiaferrolterra.com/uploads/1/3/0/8/130813796/fujunejalawu.pdfIn PDF document text
    • http://drainagecleaner.com/uploads/1/3/0/4/130483799/5679402.pdfIn PDF document text
    • http://eastalabamabikeshare.com/uploads/1/3/0/5/130588231/3b541e4b50.pdfIn PDF document text
    • http://garciacorpas.com/uploads/1/3/1/8/131856225/ed46d.pdfIn PDF document text
    • http://megandonnelly.ca/uploads/1/3/1/0/131070327/zisivexeziwegij_kasiroguxinowot_debiso.pdfIn PDF document text
    • http://slccdburnham.com/uploads/1/3/0/8/130873902/a79d2.pdfIn PDF document text
    • http://traumallamas.com/uploads/1/3/1/1/131164471/24340a074fe4753.pdfIn PDF document text
    • http://zstartrading.com/uploads/1/3/0/7/130738771/ripas.pdfIn PDF document text
    • http://theemafoundation.com/uploads/1/3/1/3/131381782/dosaw.pdfIn PDF document text
    • http://antonioalopez.com/uploads/1/3/0/7/130740443/bifonopit_putadozopo_gukuverowokutuk.pdfIn PDF document text
    • http://midnightvapehookah.com/uploads/1/3/1/4/131408178/zuweki_sedodesi_jaxafixujo_redadizofagogup.pdfIn PDF document text
    • http://elliesjewellery.com/uploads/1/3/1/3/131379223/fc1a01eaba.pdfIn PDF document text
    • http://nailsbymargaret.com/uploads/1/3/0/6/130604804/77736347b745d.pdfIn PDF document text
    • http://the-lpg.com/uploads/1/3/0/7/130739530/c226e8.pdfIn PDF document text
    • http://lectricwind.com/uploads/1/3/0/5/130588210/4880930.pdfIn PDF document text
    • http://artur-toronto.com/uploads/1/3/0/6/130640105/55fb96.pdfIn PDF document text
    • http://mindsetgangster.com/uploads/1/3/0/3/130313117/moxepozovul-werasejobunoge-jasufaxis-jowokajupubebi.pdfIn PDF document text
    • http://besoulfood.com/uploads/1/3/0/9/130969046/fe66b4.pdfIn PDF document text
    • http://browtricksshop.com/uploads/1/3/0/7/130775465/69526.pdfIn PDF document text
    • http://giltnertraining.com/uploads/1/3/0/6/130639904/kevowemegawe_tafowunon.pdfIn PDF document text
    • http://jorax-beveiliging.nl/uploads/1/3/0/5/130551661/fb308c30b8.pdfIn PDF document text
    • http://younionstudio.com/uploads/1/3/0/7/130739945/4325868.pdfIn PDF document text
    • http://verablendnutrition.com/uploads/1/3/0/6/130604779/puvasoretuw-pejetezadalu-motofixab-zezopifan.pdfIn PDF document text
    • http://b83apartments.com/uploads/1/3/0/7/130775768/kuvufoli-fomevikodoluj.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
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007bc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BC3 10264 bytes
SHA-256: 33c6022184b52907cc8af77e87b35a4eee51384f1b342f468c70728c0e778934

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