Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa54b1922444edbd…

MALICIOUS

PDF

47.7 KB Created: 2020-04-03 15:23:41 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-09
MD5: e7f16c718b848b2f7df0920778759f7a SHA-1: d7ea356f4e31132a7e88957b7ad137f3ba9b9b72 SHA-256: fa54b1922444edbdb9cc23c9e838423b63e11ff2edc8e7dca929db175a7426b6
136 Risk Score

Malware Insights

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

The PDF contains a large number of external links to various domains, suggesting a link farm or SEO poisoning attack. The ML classifier strongly indicated maliciousness. The document body, though partially corrupted, contains a URL that points to a path with a game item name, potentially a lure. The primary attack pattern involves directing users to a network of SEO-optimized PDF files.

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://lennoxweb.com/uploads/1/3/0/2/130288329/130288329.html#bracers+of+blinding+strike+pathfinder PDF link annotation
    • http://blissfulbunsowensound.com/uploads/1/3/0/5/130550796/7818496.pdfIn PDF document text
    • http://audreyandsandra.com/uploads/1/3/0/9/130969862/3564191.pdfIn PDF document text
    • http://dentalsmilesunlimited.net/uploads/1/3/0/2/130287257/feferoli.pdfIn PDF document text
    • http://pneumaticpartscompany.com/uploads/1/3/0/7/130740195/af98654f18.pdfIn PDF document text
    • http://sweetsaguaro.com/uploads/1/3/0/7/130739204/wupafolomoxoxutulale.pdfIn PDF document text
    • http://bottom-linebookkeeping.com/uploads/1/3/1/4/131453062/9124805.pdfIn PDF document text
    • http://viperfisharts.com/uploads/1/3/1/3/131380885/kojubisubusego-didovama-jagaxamoro.pdfIn PDF document text
    • http://emandabfloraldesign.com/uploads/1/3/0/6/130639827/5984838.pdfIn PDF document text
    • http://jewelrybyjimpluhar.com/uploads/1/3/1/3/131382797/fewojo.pdfIn PDF document text
    • http://mermaidexplorers.com/uploads/1/3/0/6/130621298/420ee4690c3d7d.pdfIn PDF document text
    • http://inspiringteamdevelopmentandawaydays.com/uploads/1/3/0/9/130969795/7a52ffa.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
🗂 Part of campaign: nancyspolishing.com 3 samples

Related samples 8

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_off00007cc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC0 8380 bytes
SHA-256: c9e90e3fc7fb88485f11ccb5e1ee6cc18483a4627d9adf35bc6210cb9328e122
font_01_sfnt_off00009cfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CFE 16036 bytes
SHA-256: b3affdfdfee497c2d3230853582529cf395d265bfdbb8cde7d84ae9c33602211

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