Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e35b2d2254b1d1b…

MALICIOUS

PDF

42.2 KB Created: 2020-08-11 11:53:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f557a1e7405f6269d24a2c8dbe4bcda5 SHA-1: 913259412b94e4427f275decf9101dfd0890d173 SHA-256: 1e35b2d2254b1d1bffc97a8cd934238fd37e8653d640354fec803cb46f5fb985
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. This suggests a link farm or phishing lure designed to redirect users to malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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=methods+in+molecular+biophysics+serdyuk+pdf In PDF document text
    • http://files.ctkbedford.org/uploads/1/3/2/7/132740342/708d827c.pdfIn PDF document text
    • http://jonaluw.thorbournebaby.com/uploads/1/3/0/8/130813846/jotonejetuvepurila.pdfIn PDF document text
    • http://files.hecklerancestry.com/uploads/1/3/0/9/130969926/fezovikaje.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/1/0428/7430/6727/files/kivisonaziwunemowizip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6335/3250/files/79293235539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4852/5208/files/rewufinatewesibam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/mogovenudabuselabefuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1298/8821/files/matisalonuwis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lonuxifipepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4292/0869/files/xanoxojexem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7567/4012/files/american_english_file_3_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9691/5621/files/zuvatijupotagoxasix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7274/8710/files/world_breastfeeding_week_theme_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1940/7257/files/ipod_classic_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7595/2030/files/78796374803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/1836/7654/files/tomb_of_annihilation_book.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_off00006438.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6438 5704 bytes
SHA-256: f6b2a67fee2ddb806234ac37324cfb9f82e96f5928b08d1af58684abac7ad7fb
font_01_sfnt_off0000777e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x777E 10680 bytes
SHA-256: 448a3f5c74eb07aa3639866a3fb18d2c4feaf07596de13ff0b891b472ae5ed84

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