Malicious PDF — malware analysis report

Static analysis result for SHA-256 c006309246c08e88…

MALICIOUS

PDF

34.0 KB Created: 2020-05-13 09:29:47 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: 6d7b388bc1fdac070aca92a1ed9f9b16 SHA-1: 80cbd8952028c2ce5f93964812d9d22a31d132ca SHA-256: c006309246c08e88847af06e3048edecea6f08aba689a62c920e90c133c21840
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, though partially corrupted, includes a URL that points to a "company pest analysis pdf". This suggests the document is designed to redirect users to a network of websites, likely for SEO spam or to host further malicious content. No scripts were extracted from this sample.

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://frackingprosandcons.info/uploads/1/3/1/3/131380612/131380612.html#company+pest+analysis+pdf PDF link annotation
    • http://nakedtrackdays.net/uploads/1/3/0/5/130543979/zebidazomaw_jipavuneg_lanapotewobos.pdfIn PDF document text
    • http://anandassi.com/uploads/1/3/0/5/130590503/a2e3ff3cb02b5.pdfIn PDF document text
    • http://shelbyswastewaterresources.com/uploads/1/3/1/4/131452823/6ac197122.pdfIn PDF document text
    • http://kiranrane.com/uploads/1/3/0/6/130621335/7e073d6b9f358.pdfIn PDF document text
    • http://mpatoska.com/uploads/1/3/1/4/131453294/mugila_leregewulu.pdfIn PDF document text
    • http://stegallsnurseryandplantfarminc.net/uploads/1/3/0/7/130775368/tijudu.pdfIn PDF document text
    • http://forerecovery.com/uploads/1/3/0/8/130813779/giwamozid_siwepuwatosow.pdfIn PDF document text
    • http://limit2109.com/uploads/1/3/0/8/130814195/4976421.pdfIn PDF document text
    • http://mentorsforwomen.org/uploads/1/3/1/3/131383207/fopivewitudirebiza.pdfIn PDF document text
    • http://swimpersonal.com/uploads/1/3/0/7/130775145/dedawixobekopu_jokib_viguluvidotiba.pdfIn PDF document text
    • http://myaquapro.com/uploads/1/3/0/7/130740450/zasitopegagaba_lipun_fefan.pdfIn PDF document text
    • http://ceibatoothtiger.com/uploads/1/3/1/8/131858166/27f34d1157af1.pdfIn PDF document text
    • http://acaihut.com/uploads/1/3/1/4/131406963/5417177.pdfIn PDF document text
    • http://chronmusic.com/uploads/1/3/0/6/130604589/wafekolezumuti_fovafivus.pdfIn PDF document text
    • http://goodnewsdoctor.com/uploads/1/3/0/3/130379504/kajolebufenigejet.pdfIn PDF document text
    • http://kurtschelkle.com/uploads/1/3/0/4/130490668/vorojezaxinoxedire.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 1

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_off00005b9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B9D 9680 bytes
SHA-256: 224d13ab736c856442eacac3f26b0960e5352aade0c7ea3dcae143deb2502a89

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