Malicious PDF — malware analysis report

Static analysis result for SHA-256 c69a0042400d6f09…

MALICIOUS

PDF

81.8 KB Created: 2021-03-14 07:02:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5da59e4c6337414b69d826dc34b12a45 SHA-1: 5ed304b4ab2f690fe052d4f4ce7fef3502713e9a SHA-256: c69a0042400d6f09cf38e0bc1a96a5a2871b560f2f21979595180dadaacf70c8
66 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains numerous embedded URLs, with one specifically targeting a keyword related to 'broadacre city'. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for a large number of links, suggesting a potential SEO manipulation or phishing campaign. While no scripts were explicitly extracted, the presence of external URIs and the ML classifier's high confidence score point towards malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://nipisod.ru/award?keyword=broadacre+city+a+new+community+plan+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4465012/normal_603d574c5cf60.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386620/normal_6007a14525cb3.pdfIn PDF document text
    • https://cdn.sqhk.co/foguwugafu/ajaie5u/bcbsil_claim_reconsideration_form.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485705/normal_601a4f6020306.pdfIn PDF document text
    • https://cdn.sqhk.co/lazaxosu/Gq3jcgf/77132962784.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401691/normal_5fdfd8c6de20f.pdfIn PDF document text
    • https://xozanazefozi.weebly.com/uploads/1/3/0/8/130874019/51c1312.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476941/normal_6016a51dec0fc.pdfIn PDF document text
    • https://muneberixiloza.weebly.com/uploads/1/3/4/3/134339704/povijesu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470979/normal_6035f96ce6fa6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426816/normal_6045048805443.pdfIn PDF document text
    • https://cdn.sqhk.co/gixezovof/IdjjgjX/2824138505.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://f6ce3cfb-f922-470c-9e0e-eaf724001b0e.filesusr.com/ugd/defcb2_5378e09712414eaeab7ac48bb6716a2e.pdf?index=trueIn PDF document text
    • https://19508648-7f28-415f-8121-b57715dc1465.filesusr.com/ugd/9734e7_183f7a8dd92c4cfab51558800f3c1ea7.pdf?index=trueIn PDF document text
    • https://d0a6b1b1-1773-4622-8b5e-0ab5990a7ed3.filesusr.com/ugd/b90ba1_c905fe6f16b14c2f97c776dfd4bf9391.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/467b5840-aace-4af2-9a38-53c8115a935c/why_books_were_banned_in_fahrenheit_451.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f7331d0-fcf0-4d9a-90bd-9377dff41339/easy_vegan_no_bake_granola_bars.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4551954-0348-4cbc-9ceb-8d78fb091839/how_to_use_a_craftsman_staple_gun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc85a781-d3c8-42cc-a1c6-58bd9c595f01/flir_tg165_price.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a6b93ac-a6d2-4e79-b1f6-94187eee07fa/lezawadavefif.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001043d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1043D 5368 bytes
SHA-256: b90ebfb616e14dbc0b0f0245b27720c2b3a21028dff0497227a9a5c062f4a21d
font_01_sfnt_off00011688.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11688 11036 bytes
SHA-256: 8f62e6d0febad40ea76a5172276bb8082ecb9c8ce50f1c31fd5e61c841d120ad

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