Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b594b160d4d223a…

MALICIOUS

PDF

47.9 KB Created: 2020-08-21 19:55:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bdee9b4c1f47a18662e0e1b74e97ceff SHA-1: 68cf3a381a31953882bd3ba37a2c240294645fb9 SHA-256: 0b594b160d4d223ac71c1b3cc9f8237a8d7c7485ba3a110eecf94a26ea44c89d
194 Risk Score

Malware Insights

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

This PDF file contains a link to a redirector URL, which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL. The presence of a large number of external PDF links suggests an attempt to manipulate search engine results or distribute content, with the primary malicious link likely leading to a phishing or malware download page.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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.
  • 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://ttraff.ru/pify?keyword=behavioral+interview+questions+and+answers+for+retail In PDF document text
    • http://files.aliceinfinitycosplay.com/uploads/1/3/0/9/130969315/8d4bd1cd.pdfIn PDF document text
    • http://files.alifeworthliving2.org/uploads/1/3/0/8/130874318/lenalaw-fowez-legojumafixixin-tunotababivofen.pdfIn PDF document text
    • http://files.sgionet.com/uploads/1/3/0/8/130874413/zujojunejiguwimurob.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7723/6904/files/materiales_dentales_libro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3577/6408/files/dbt_jrf_contingency_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3276/3801/files/59725847508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4566/5433/files/34949436172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0532/0088/files/govajijolexujid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1677/4054/files/fomow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9304/1059/files/42140047114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2089/1798/files/alexander_osterwalder_business_model_generation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0469/6472/files/applied_calculus_4th_edition_hughes_hallett.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_off00007dbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBC 5324 bytes
SHA-256: a67e27200a2ba2f3ad0c8d3b99411a297b02f4b522de6ec051d69e7e886fcfb9
font_01_sfnt_off00008fe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FE3 10120 bytes
SHA-256: eadcb5bde4217bb0964b43abededfd0e15ea089dde31f473cbab05d947c3e9b1

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