Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8fd8eb5a0ed25f5…

MALICIOUS

PDF

46.9 KB Created: 2020-04-05 04:49:21 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 04086d37a87217973ef4b9f20b094a42 SHA-1: 4d6c167d2a08bd7f57a7064d73088da840c9185a SHA-256: e8fd8eb5a0ed25f5d0228ccb4d26b87050611f5667cf3bf8870c35b915b1b95c
96 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a PDF link farm. The document body text, though partially corrupted, includes a reference to copying text from a protected page, suggesting a deceptive lure. The primary heuristic indicates a mass of external PDF links, with the dominant host being www.cityanglicanfellowship.org, pointing towards SEO manipulation or a content distribution network for malicious files.

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://aborganic.com/uploads/1/3/0/5/130588390/130588390.html#copiar+un+texto+de+una+pagina+protegida PDF link annotation
    • http://www.cityanglicanfellowship.org/uploads/1/3/0/9/130969424/gugotimexuxugoz.pdfIn PDF document text
    • http://borncorporate.com/uploads/1/3/0/4/130483109/4046363.pdfIn PDF document text
    • http://dodafit.com/uploads/1/3/0/2/130272582/2843444.pdfIn PDF document text
    • http://jenaforryane.com/uploads/1/3/0/7/130739006/zozanedujerisaz-budidesufagila-wifewa.pdfIn PDF document text
    • http://vendotituloslegales.com/uploads/1/3/0/8/130874678/795a29.pdfIn PDF document text
    • http://gacimba.com/uploads/1/3/0/5/130590689/3944717.pdfIn PDF document text
    • http://renaissancemanbuilding.com/uploads/1/3/1/4/131407855/jizuxa_nulegowaxapa_kututevo.pdfIn PDF document text
    • http://gcditsolutions.com/uploads/1/3/0/6/130604498/c0ce3cdb0d.pdfIn PDF document text
    • http://brittanyserrador.com/uploads/1/3/0/7/130740618/xarimizewot.pdfIn PDF document text
    • http://theglobeclothingcompany.com/uploads/1/3/0/7/130738914/364daa91.pdfIn PDF document text
    • http://arenaeyecarenatomas.com/uploads/1/3/0/2/130291485/pogazape.pdfIn PDF document text
    • http://websitesbyjan.com/uploads/1/3/0/6/130605389/6bcc77.pdfIn PDF document text
    • http://stsmineral.com/uploads/1/3/0/7/130739285/pavofefosutomobonita.pdfIn PDF document text
    • http://carolinelindley.com/uploads/1/3/0/6/130604088/1315962.pdfIn 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69B2 9152 bytes
SHA-256: 7b049ff4c887a75ab831b1247be72edc0062acd40c95e809672f90f2a7902dd2
font_01_sfnt_off00008ae8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AE8 2532 bytes
SHA-256: 92ae5ae77c6c02817c5b93ecb05ee2dd94fae33685befe8059a599ca01d45e16
font_02_sfnt_off0000960b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x960B 16320 bytes
SHA-256: bfca7b4c0806f6bbabb9d25c47b6074c5ecef667a12080010ff8495391c6a74f

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