Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e8dee6c2647ef21…

MALICIOUS

PDF

39.8 KB Created: 2020-06-05 03:49:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9cc8d3c4183da1a10200d350f5ff221b SHA-1: ec2df98f1238ca322890562abf7fdd95a3be55d0 SHA-256: 2e8dee6c2647ef2123165771dbb914f33c8daddcd2272bf6150003cfa1018768
96 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a common tactic for SEO spam or phishing campaigns. The document body, though partially corrupted, contains text referencing 'Whatsapp para blackberry curve', suggesting a lure to a potentially malicious website. The PDF_SEO_LINK_FARM heuristic firing indicates a large number of external links, and the ML classifier strongly suggests malicious intent. No scripts were extracted from this sample.

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://underthestarssleepoverparties.co.uk/uploads/1/3/0/5/130588376/130588376.html#whatsapp+para+blackberry+curve PDF link annotation
    • http://nhsaustraliamedicalcentre.com/uploads/1/3/0/6/130640125/beef5.pdfIn PDF document text
    • http://mail.westfordregency.com/uploads/1/3/1/3/131379375/sugukugajexilez-fekigamikujixug-mozuvatugekum.pdfIn PDF document text
    • http://residentresiliency.net/uploads/1/3/0/4/130435577/serowumedekimel.pdfIn PDF document text
    • http://patriotplayerstheatre.com/uploads/1/3/0/9/130969830/99f977.pdfIn PDF document text
    • http://mail.bold-essentials.com/uploads/1/3/0/3/130379634/lorujemulejirimape.pdfIn PDF document text
    • http://riskconsulting.ca/uploads/1/3/1/1/131164504/rivobuzaturevix-biguxasogate.pdfIn PDF document text
    • http://serendipityinteriordesign.com/uploads/1/3/0/5/130590139/lotekivimimawu-gubuvo-powukagodi.pdfIn PDF document text
    • http://buddingbakers.co.uk/uploads/1/3/0/7/130775584/fuzirikemo-ribuj-vubuzaw-fosejafabol.pdfIn PDF document text
    • http://underthestarssleepoverparties.co.uk/uploads/1/3/0/5/130588376/terms.htmlIn PDF document text
    • http://underthestarssleepoverparties.co.uk/uploads/1/3/0/5/130588376/dmca.htmlIn PDF document text
    • http://underthestarssleepoverparties.co.uk/uploads/1/3/0/5/130588376/policy.htmlIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://kenubid.files.wordpress.com/2020/06/10737639832.pdfIn PDF document text
    • https://jugajitowep861896268.files.wordpress.com/2020/06/xebebej.pdfIn PDF document text
    • https://kopenisof.files.wordpress.com/2020/06/11129886169.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://scripts.sil.org/OFLIn 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_off00006c81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C81 11648 bytes
SHA-256: 31737a59002ace2fa0fbd8671d4147986c968421d6e9046df2e6005f032f327d

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