Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad7f038b21513854…

MALICIOUS

PDF

40.8 KB Created: 2020-03-29 22:59:54 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 6b10a699b115ce201118ccb192916994 SHA-1: f98df4b6c307fcc17f98d0575ae354c4f7685f0a SHA-256: ad7f038b21513854c7faef3e383882d8467bb73bb71aba0276bf98f927c21437
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

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 'Norma social definicion' and references 'wkhtmltopdf', suggesting a lure to external content. The primary IOC is the first external URI found, which points to a potentially malicious HTML file. The presence of numerous links to various domains, many with similar URL structures, indicates a coordinated effort to distribute content or traffic, characteristic of SEO spam or a link farm operation.

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://74-123-78-145.mgwnet.com/uploads/1/3/1/4/131407370/131407370.html#norma+social+definicion PDF link annotation
    • http://www.cityanglicanfellowship.org/uploads/1/3/0/9/130969424/gugotimexuxugoz.pdfIn PDF document text
    • http://dragonflyguitarcoaching.com/uploads/1/3/0/4/130477310/waxevowesufuz_wasujejexebala_rufosudutu_tobimezipo.pdfIn PDF document text
    • http://nyguitarparlor.com/uploads/1/3/0/8/130874139/2655816.pdfIn PDF document text
    • http://bronxparkingnyc.com/uploads/1/3/0/7/130776756/7914002.pdfIn PDF document text
    • http://jboogies.org/uploads/1/3/1/0/131070829/4766788.pdfIn PDF document text
    • http://ssteeleenterprises.com/uploads/1/3/0/5/130589269/kakanevixitoz-mizore-sofudukudubiwu.pdfIn PDF document text
    • http://my-trg.com/uploads/1/3/0/4/130476471/lularanatowixu-zoxetirononife-porerugifevev.pdfIn PDF document text
    • http://joyce-spiro.com/uploads/1/3/0/6/130604778/4756929.pdfIn PDF document text
    • http://nicolasandysmillinery.com/uploads/1/3/1/3/131384024/tiwufevupewatimipone.pdfIn PDF document text
    • http://tngrappling.com/uploads/1/3/0/6/130621444/9203298.pdfIn PDF document text
    • http://davidbarg.com/uploads/1/3/1/0/131069753/2b7b20ba018.pdfIn PDF document text
    • http://axminster-ringcraft.com/uploads/1/3/0/5/130539019/lurekajisinif.pdfIn PDF document text
    • http://kosarkaski-klub-ajdovscina.si/uploads/1/3/0/7/130738596/luxudelis_tunomaz_gekedo.pdfIn PDF document text
    • http://wadokaisouthwest.com/uploads/1/3/0/6/130639860/divefuligasopokuwefi.pdfIn PDF document text
    • http://juliedrinkscoffee.com/uploads/1/3/0/8/130874565/1625992d4c9f9.pdfIn PDF document text
    • http://johnwirthlinlaw.com/uploads/1/3/0/6/130604292/656548.pdfIn PDF document text
    • http://rockwatermedia.com/uploads/1/3/1/0/131070306/784167467405.pdfIn PDF document text
    • http://kingscredit.org/uploads/1/3/0/8/130814126/1914622f1d044.pdfIn PDF document text
    • http://bohmongcircle.com/uploads/1/3/0/6/130605292/tagabufu.pdfIn PDF document text
    • http://flyycollections.store/uploads/1/3/1/3/131398006/danukigoxorox.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

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_off000077da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77DA 7808 bytes
SHA-256: a2df8c10e9bfb30e33bf6445895aa9ba4fbbfe57d0797f559e24b809f0a7cce5

Open this report in the interactive analyzer, or submit your own file for analysis.