Malicious PDF — malware analysis report

Static analysis result for SHA-256 589ca24d170da925…

MALICIOUS

PDF

75.4 KB Created: 2021-03-18 23:04:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6e29d489166f19a3ba886024e58e6b40 SHA-1: a2c1ecd238be65693f0e234135242d54d18edd4a SHA-256: 589ca24d170da925c29b17362fe5d2705730221d5a57cda7f7eae1bfe43769dc
66 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, many pointing to disposable hosting, and is flagged by a machine learning classifier as malicious. The presence of external URIs and the ML classification strongly suggest malicious intent, likely to redirect users to phishing or malware-hosting sites. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a common lure for initial compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 https://soxebez.ru/123?utm_term=scalp+acupuncture+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4475580/normal_600d0e356f0c1.pdfIn PDF document text
    • http://lazirawolewok.getenjoyment.net/zawove.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366350/normal_6037203bf0e84.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426815/normal_5fd04b40da967.pdfIn PDF document text
    • http://melidagerukebel.sportsontheweb.net/is_accounting_an_art.pdfIn PDF document text
    • http://vemelaribox.getenjoyment.net/cv_et_lettre_de_motivation_en_anglais.pdfIn PDF document text
    • https://mifoxafakefan.weebly.com/uploads/1/3/0/9/130969175/e3815c8ff1a.pdfIn PDF document text
    • http://tofotibuwul.sportsontheweb.net/68738692817.pdfIn PDF document text
    • http://bositozibab.getenjoyment.net/ibis_ballistics.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495855/normal_60045eb0343df.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369760/normal_60110c774dc32.pdfIn PDF document text
    • https://saxeguwub.weebly.com/uploads/1/3/1/4/131406831/vutezibe.pdfIn PDF document text
    • http://retamos.mygamesonline.org/55327748364.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492294/normal_5fe9ae0a0439b.pdfIn PDF document text
    • http://minesaxofunawi.getenjoyment.net/cant_help_falling_in_love_ukulele_chords_strumming_pattern.pdfIn PDF document text
    • http://tumuduwaju.mypressonline.com/what_is_the_thinker_sculpture_made_of.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wugetad.myartsonline.com/quartz_2d_programming_guide.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eaec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAEC 5072 bytes
SHA-256: dd52199ad8dc6645047de3810923aaaaa197698e4cdea247422910b5873aa794
font_01_sfnt_off0000fc40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC40 10692 bytes
SHA-256: a02b923a2a201cc006bb3342b7d9bb81c119f60205494c45baa127948948bbc1

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