Malicious PDF — malware analysis report

Static analysis result for SHA-256 008e470a25f8431e…

MALICIOUS

PDF

39.8 KB Created: 2020-08-09 13:45:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d90be414046b5ea621714ba2ea200c48 SHA-1: 72d4806f7e0d4a06c45f6a5f19b9badf4ee27313 SHA-256: 008e470a25f8431e07297b94ddd6c2aa043a5608e70c51c55e5c5183ab6da379
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL pointing to a redirector, indicating an attempt to lead the user to malicious infrastructure. The presence of a large number of PDF links suggests a link farm or SEO poisoning tactic to attract victims.

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.com/pify?keyword=arithmetic+series+exercises+pdf In PDF document text
    • http://files.lshbooks.com/uploads/1/3/1/6/131637658/093a7498e2ab11f.pdfIn PDF document text
    • http://files.tinezrootsclub.com/uploads/1/3/1/3/131384573/6723058.pdfIn PDF document text
    • http://novedo.toris-pinkribbonjourney.co.uk/uploads/1/3/2/6/132696111/489945e.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/1/0438/0013/3793/files/como_convertir_un_archivo_java_a_ejecutable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/23650656803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1791/8875/files/adventure_time_season_10_episode_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89965927340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1216/1685/files/space_wolves_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9204/2137/files/mufizamatasomuxemesonan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1061/2635/files/wetudowufewulinozepiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3407/3505/files/jebogowemugumosit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7663/0181/files/calibre_convert_kindle_to.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9016/5403/files/flipping_table_emote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6123/8168/files/zefifagajufive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8191/5802/files/89633282632.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 3

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_off00005d44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D44 5208 bytes
SHA-256: 6f4401afb9634d42141e04d6e43c4a724c3d63e8ef62d0d7f01965527820a152
font_01_sfnt_off00006eda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EDA 10504 bytes
SHA-256: e7e8a793dce9c2e980add08917bcc0ab93e25c7a6d5652cdfc00be83530d1be3

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