Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2c2bb377c87d76e…

MALICIOUS

PDF

49.2 KB Created: 2020-03-27 10:31:37 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 93b74ed574d2cad6a0ca5d1409a55d09 SHA-1: 6219e16ca4883bb19b32eabbeb9fd310a9534c0a SHA-256: a2c2bb377c87d76e401c5be9912a92ea95df9abecb54ea380a25a8aee08c7994
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 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 partially corrupted, contains text related to 'Fisiologia del gusto libro pdf' and references the wkhtmltopdf tool, suggesting a lure to download or view PDF content. The primary attack pattern involves directing users to a vast array of external URLs, likely for SEO spam or to host 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://nefinancialservicesllc.com/uploads/1/3/0/6/130639856/130639856.html#fisiologia+del+gusto+libro+pdf PDF link annotation
    • http://jmuduilawyer.com/uploads/1/3/1/0/131070148/6ac20312a94.pdfIn PDF document text
    • http://edaudit.services/uploads/1/3/0/4/130483492/9401821.pdfIn PDF document text
    • http://integrityvirtualsecretary.net/uploads/1/3/0/8/130874248/1837049.pdfIn PDF document text
    • http://www.firma365.dk/uploads/1/3/0/5/130590082/libujuzut.pdfIn PDF document text
    • http://oweddings.net/uploads/1/3/0/6/130604117/ruvafi.pdfIn PDF document text
    • http://globalclimatefacts.com/uploads/1/3/0/7/130739385/wiwuba.pdfIn PDF document text
    • http://ineffableapparel.com.au/uploads/1/3/0/3/130379638/6710183.pdfIn PDF document text
    • http://icecreamscentedsoap.com/uploads/1/3/0/9/130969596/787201.pdfIn PDF document text
    • http://onlinenursingdegrees.net/uploads/1/3/0/5/130589427/a8f4c14.pdfIn PDF document text
    • http://homemaildoraemonthe.com/uploads/1/3/0/2/130271211/4124199a6e661a.pdfIn PDF document text
    • http://clickwisegroup.co.uk/uploads/1/3/0/9/130969137/6571219.pdfIn PDF document text
    • http://64-160-90-243.pacific-solutions.com/uploads/1/3/0/6/130620887/rajefabava_dinenerifuzima_vajejo_polen.pdfIn PDF document text
    • http://carpets.casadedios.us/uploads/1/3/0/3/130313037/cc1bd7810d88289.pdfIn PDF document text
    • http://rlrosadelis.com/uploads/1/3/1/0/131070431/pobopitin.pdfIn PDF document text
    • http://radtacular.net/uploads/1/3/0/6/130640053/31d178515.pdfIn PDF document text
    • http://psbypaulo.com/uploads/1/3/0/4/130488691/polopidanixi_renarodavupef_bigedo.pdfIn PDF document text
    • http://eurekaideaslab.com/uploads/1/3/0/6/130640114/rizibelilifimi_lonavabewusaxav_bukifa.pdfIn PDF document text
    • http://thechangeiwishtosee.com/uploads/1/3/0/5/130550743/12f0070.pdfIn PDF document text
    • http://oregonfoodcarts.com/uploads/1/3/0/7/130775015/jinugizeva.pdfIn PDF document text
    • http://rcpromaintenancecorp.com/uploads/1/3/0/5/130590622/540ca3e990.pdfIn PDF document text
    • http://anuvad.net/uploads/1/3/0/3/130323116/teges_jomufipuragemup.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 4

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_off00009178.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9178 10560 bytes
SHA-256: 2df86ec1abec5f2a230ce7fadf27de557cb72c18da276301fc1c9a6cf6e200e6

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