Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fd6fb586c2036f1…

MALICIOUS

PDF

49.1 KB Created: 2020-03-07 17:21:48 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 8e234a345640ee0c111747ada68fb047 SHA-1: f8d76b1429cb849d84df897a333961d5f9c6153f SHA-256: 4fd6fb586c2036f1b4811be0111c64928cdf4ada0cedaa54de945c4c43719273
96 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though heavily obfuscated, contains a reference to 'Zero budget natural farming books online' and includes the URL http://o0ype.bpmtc.com/uploads/1/3/0/6/130620572/130620572.html#zero+budget+natural+farming+books+online. The primary purpose appears to be directing users to a vast network of linked PDF files hosted on various domains, likely for SEO spam or to distribute further malicious content.

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://o0ype.bpmtc.com/uploads/1/3/0/6/130620572/130620572.html#zero+budget+natural+farming+books+online PDF link annotation
    • http://energymanagementplus.com/uploads/1/3/0/2/130272506/zuwewagat.pdfIn PDF document text
    • http://depatos.shop/uploads/1/3/0/4/130488338/wotibedakirijo-waropobojasi-zinefi.pdfIn PDF document text
    • http://storesketch.com/uploads/1/3/0/5/130590435/763618.pdfIn PDF document text
    • http://melfelk.com/uploads/1/3/0/6/130620679/bugolow.pdfIn PDF document text
    • http://scope-for-growth.com/uploads/1/3/0/6/130620278/39cc27c470b569.pdfIn PDF document text
    • http://javari.net/uploads/1/3/0/6/130604934/6207064.pdfIn PDF document text
    • http://christianfuneraldirectors.com/uploads/1/3/0/5/130589444/98807.pdfIn PDF document text
    • http://www.buffalo3studios.com/uploads/1/3/0/4/130476581/wonusodojeziwam-jifaten-budivuxese.pdfIn PDF document text
    • http://www.vdotink.com/uploads/1/3/0/6/130604505/fomibixetet.pdfIn PDF document text
    • http://fitlovela.com/uploads/1/3/0/7/130739578/99ff3c.pdfIn PDF document text
    • http://fishpunk.co.nz/uploads/1/3/0/7/130739175/9970080.pdfIn PDF document text
    • http://kuniusedcars.com/uploads/1/3/0/4/130483733/zijimubolu.pdfIn PDF document text
    • http://www.esubtraininghub.com/uploads/1/3/0/8/130874198/7670286e5.pdfIn PDF document text
    • http://nwcg.yourgin.com/uploads/1/3/0/7/130738644/zugatomudo.pdfIn PDF document text
    • http://livingonthelearningcurve.com/uploads/1/3/0/4/130483184/6019931.pdfIn PDF document text
    • http://mail.zakisaati.com/uploads/1/3/0/6/130640232/317163.pdfIn PDF document text
    • http://earsurgerycenter.com/uploads/1/3/0/8/130874559/dde6c4c2.pdfIn PDF document text
    • http://www.fiddleheadgardenservices.com/uploads/1/3/0/8/130874122/7718351.pdfIn PDF document text
    • http://pssdforum.com/uploads/1/3/0/6/130604227/pegifeval_gadiselofom_jetobi_kepumomubuj.pdfIn PDF document text
    • http://kokopellikikosandpackgoats.com/uploads/1/3/0/6/130620839/4820287.pdfIn PDF document text
    • http://myamericandreampools.com/uploads/1/3/0/6/130639310/gifavimirituwen.pdfIn PDF document text
    • http://kamijoon.com/uploads/1/3/0/7/130739470/xoraj_tufowusa_bisovij.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text

Related samples 7

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C16 8192 bytes
SHA-256: f1e7200179f137d3e496e81d3561b1068ec86b6cff04b9be6cd0b172f5968253
font_01_sfnt_off00009bc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BC3 9464 bytes
SHA-256: 77bdc59f21ab92d0c77343ed8c52d78796a35fece3398f7cbfdcda28fccc7740

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