Malicious PDF — malware analysis report

Static analysis result for SHA-256 57827a277612cb44…

MALICIOUS

PDF

38.1 KB Created: 2020-03-21 16:24:26 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 468fdeb59440382addb4ef5543412151 SHA-1: 247b3bcf652c9c79cbdca4efdf5dda63ac720146 SHA-256: 57827a277612cb4456b1d162f6de0ea0bdf8da3be3be134d2dc1d47a0ddc94bc
136 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a common tactic for SEO poisoning or redirecting users to malicious sites. The document body mentions 'Dyson stick vacuum v10 animal', suggesting a lure to attract clicks. The presence of numerous PDF links, many with numeric slugs, indicates a link farm designed to manipulate search engine results or distribute malware. No scripts were extracted, but the primary attack vector appears to be social engineering via malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://oldkingpartners.com/uploads/1/3/0/5/130538842/130538842.html#dyson+stick+vacuum+v10+animal PDF link annotation
    • http://catherinepetrosinodesignstudio.com/uploads/1/3/0/7/130775768/6648277.pdfIn PDF document text
    • http://ihpdm1.com/uploads/1/3/0/4/130477346/zuduwibubul-fudutuvugugi.pdfIn PDF document text
    • http://webmail.mytravel.guide/uploads/1/3/0/7/130738565/boxuli_biluwudaxakedox.pdfIn PDF document text
    • http://meridianspire.com/uploads/1/3/0/7/130775275/4555230.pdfIn PDF document text
    • http://thestemcell.org/uploads/1/3/0/4/130476454/2508526.pdfIn PDF document text
    • http://prophits.net/uploads/1/3/0/3/130313262/6196698.pdfIn PDF document text
    • http://www.vicbuttonflatearth.com/uploads/1/3/0/6/130604355/2095937.pdfIn PDF document text
    • http://eycongrats.com/uploads/1/3/0/4/130435553/4621236.pdfIn PDF document text
    • http://www.earncash.dadgifts.us/uploads/1/3/0/6/130640022/e43ea815b63.pdfIn PDF document text
    • http://www.hachiyuki.com/uploads/1/3/0/5/130540134/3202000.pdfIn PDF document text
    • http://www.wafflesofwonder.com/uploads/1/3/0/9/130970005/4724173.pdfIn PDF document text
    • http://schoolchoicevermont.com/uploads/1/3/0/9/130969920/tisenifakajopa_buvemobadiruva_sodorofetadut.pdfIn PDF document text
    • http://upcom.us/uploads/1/3/0/8/130814062/nizos-nabuzavawi.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
🗂 Part of campaign: mollymauied2013.com 7 samples

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_off00006a96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A96 8000 bytes
SHA-256: 357213560d7419d3a2de231dfb740a5c759871d01b3a4e8849acf47661940aae

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