Malicious PDF — malware analysis report

Static analysis result for SHA-256 722cdecd99c71111…

MALICIOUS

PDF

125.4 KB Created: 2020-08-14 01:40:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1ab4bbe686cf1ef572e69bec496c76b0 SHA-1: 071a51b612edaa40980591da43c94fec4123171b SHA-256: 722cdecd99c71111140bca30492e45da384ac46b365d0b64f480f87f2d8cae4c
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, with a primary URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same redirector URL. This suggests the PDF is designed to redirect users to malicious infrastructure, likely for phishing or to download further malware.

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=movement+for+child+labor+reform In PDF document text
    • http://files.chrisvanwyhe.me/uploads/1/3/1/8/131856991/3241658.pdfIn PDF document text
    • http://files.stjohnsmtpleasantmi.com/uploads/1/3/1/6/131637384/8e3d33001feb2.pdfIn PDF document text
    • http://xixesapur.ditchwerks.com/uploads/1/3/2/6/132696414/e6ec4d38b98b.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/1/0430/7881/1810/files/30502643856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8512/8090/files/viporitokedozifopinuwiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8295/7478/files/vamodilaju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7594/5126/files/48480679410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2431/7607/files/5th_symphony_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4196/3683/files/vikosoziximuniganav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1751/0818/files/67496345390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8427/1016/files/vewugajamuvusukawalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3509/8264/files/dubeluvusupowuki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3910/8770/files/50937779250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9985/7823/files/64747379299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5158/1597/files/nigas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8298/1278/files/sifizadawabukikarenur.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 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001a59e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A59E 3332 bytes
SHA-256: c6513bdaba752c0524d684c538629e0e98087ace9aa143aa84d4701109bead9d
font_01_sfnt_off0001b19a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B19A 5288 bytes
SHA-256: 1d9f882da88bd6eeaf063f2aeed7bce9fb0834c5048c6bb6dd9e08ae6d8fdc55
font_02_sfnt_off0001c374.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C374 10800 bytes
SHA-256: 0a8f9c46c5432221bcd18a45e2fa7afcb22b47141a9a938fa6baa8e324ffd97f

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