Malicious PDF — malware analysis report

Static analysis result for SHA-256 938568755ecbecbe…

MALICIOUS

PDF

148.7 KB Created: 2020-11-09 16:58:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 8a7dc883584f3759a646973d17d264d9 SHA-1: ab6fa03b225e9661c81965c8e3cd46698d13fdeb SHA-256: 938568755ecbecbef3745463b0d91ae29d26b4600e7e6acc1e7cf6b04f58e9ad
76 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains an embedded URL that redirects to a suspicious domain, identified as an SEO redirector for phishing. The ML classifier strongly indicates maliciousness. While no scripts were directly extracted, the presence of a redirector suggests an attempt to lure users to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://trafffi.ru/aws?keyword=blue+ridge+pottery+price+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370077/normal_5f9ef657461da.pdfIn PDF document text
    • https://mekuluvuxagol.weebly.com/uploads/1/3/4/5/134589608/0e5b6d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372723/normal_5f8cefb0cbdff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406168/normal_5f9fd72680085.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464852/normal_5fa256fc7f7fd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pusori/resuvimejaxukip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae35d7a8-c184-4ac0-a0e2-f8f07e33f110/mitujizonimirebizuradike.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e36b05e3-a80a-447f-be7b-59af6d166bbd/tolebipujebidibo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08d7da5f-cb46-4746-91e6-7844fd4fe320/33274202882.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1642c89-a912-415e-bc50-aa91c48a6ad5/pogimigugezokivunuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/647c3a01-e091-4547-b24e-8a13e9fd50e5/9411757866.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a032f3dd-ccce-46ab-9b4c-b4604f830b18/gemitotowurivofi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5852c878-1e2a-4f2a-9f0c-f77a6ef9df8a/folemodupa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/936bcdb9-c417-4b79-bba6-205bd438465b/jigexexegogiduwiwijobe.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

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_off00020a84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20A84 5004 bytes
SHA-256: 500bebb80e8ba8dd713887b21aec52143179e22ebc7d59aa44f063279a5db1f5
font_01_sfnt_off00021ba9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21BA9 13612 bytes
SHA-256: 84a14dd243c0b41c71959dcf8b3a773e7dbb9b033dfbf125bd51fa4f35880b9e

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