Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d44ccf2dc82710a…

MALICIOUS

PDF

34.6 KB Created: 2020-03-07 12:51:05 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 903f1a0f82b6c67c39e0203ede698ee4 SHA-1: 8e62f49dd26134ef20a8ed1d1ebd49a49e7f6425 SHA-256: 4d44ccf2dc82710a930d35318f1fd6376d7c9a913454eb404188f8539dd42a08
96 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are dynamically generated and point to PDF files. The document body, though partially corrupted, suggests a 'quiz' lure. The primary heuristic indicates a link farm designed to distribute content or redirect users. The embedded URLs are likely part of this distribution or redirection scheme.

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://74-123-79-26.mgwnet.com/uploads/1/3/0/5/130590395/130590395.html#rational+and+irrational+numbers+quiz+pdf PDF link annotation
    • http://petsingoodhealth.com/uploads/1/3/0/8/130874292/fevunovuzal-midofivi.pdfIn PDF document text
    • http://waggitailz.com/uploads/1/3/0/7/130740213/4225013.pdfIn PDF document text
    • http://953290208338412848.com/uploads/1/3/0/5/130551309/4889337.pdfIn PDF document text
    • http://www.eyeofthegecko.net/uploads/1/3/0/4/130489025/fefotolokakefivu.pdfIn PDF document text
    • http://allatjanster.online/uploads/1/3/0/6/130604528/xibube-nulodavuvekuk-xoruzifefiv-diram.pdfIn PDF document text
    • http://hostmaster.wdsclientsupport.uk/uploads/1/3/0/3/130323510/lixeki-sizavizarazu-kidotajavuxoja.pdfIn PDF document text
    • http://christerica.org/uploads/1/3/0/7/130740196/5a6005c04428754.pdfIn PDF document text
    • http://northcotswolds.com/uploads/1/3/0/2/130272580/900403.pdfIn PDF document text
    • http://supremespeech.com/uploads/1/3/0/6/130605115/libeduve.pdfIn PDF document text
    • http://milkywayshirt.com/uploads/1/3/0/7/130776648/3d354cd41e8.pdfIn PDF document text
    • http://sibtender.net/uploads/1/3/0/6/130603922/zufedemimor.pdfIn PDF document text
    • http://congenitalheartdefects.com/uploads/1/3/0/4/130488470/9750955.pdfIn PDF document text
    • http://www.tpconsultingllc.net/uploads/1/3/1/0/131070332/6241905.pdfIn PDF document text
    • http://benjaminfaler.com/uploads/1/3/0/3/130313274/vavime-sidamosefo-pezes-ninofug.pdfIn PDF document text
    • http://housing-kaboom.com/uploads/1/3/0/2/130287441/sozopijovapejov.pdfIn PDF document text
    • http://mta-sts.v8pistons.com/uploads/1/3/0/7/130776072/rivevigix.pdfIn PDF document text
    • http://avirllavigne.com/uploads/1/3/1/0/131070407/pipibuvupi-rewilufanatal.pdfIn PDF document text
    • http://reginavictoriafields.com/uploads/1/3/0/2/130289171/2722678.pdfIn PDF document text
    • http://clientcentredlearning.com/uploads/1/3/0/5/130588656/6048308.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: petsingoodhealth.com 3 samples

Related samples 2

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_off00005f35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F35 7520 bytes
SHA-256: c05d2cdf179db05feef3d1c30f83cdb68451366f48d2696bcb35b96c672c9666

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