Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fd7ed5f4289ce73…

MALICIOUS

PDF

56.5 KB Created: 2020-08-01 06:44:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 88bbe29c624e73958a8e66cfc362bdd2 SHA-1: 1d1c5b2e056dcec49253ec87618281b7c2dd10ac SHA-256: 1fd7ed5f4289ce73299d590385830ad96f424b32481bf211beac97cd2f26a37d
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation or to obscure the true malicious destination. One critical heuristic identified a link to a known malicious redirector, ttraff.ru, which is further disguised with a keyword related to printing address labels from Excel. This indicates a social engineering lure to drive traffic to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=print+address+labels+from+excel In PDF document text
    • http://files.repairsworld.com/uploads/1/3/2/8/132814544/6405428.pdfIn PDF document text
    • http://files.emilyafield.com/uploads/1/3/0/8/130874317/2606062.pdfIn PDF document text
    • http://files.williwisedaycamp.com/uploads/1/3/0/8/130873822/2900455.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/1/0439/6387/5486/files/towefisajewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1927/9263/files/vapuvugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1849/2824/files/70654515418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/benubojebexoreloruva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/xapevaparijasozojidotox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2379/4337/files/lonezufafilibumilimiwoge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4610/9345/files/43243810160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9562/9725/files/57739438926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5287/5424/files/vinelusabizomibapitite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3707/3314/files/zijijopezoroba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6830/1212/files/drag_racer_v3_ceats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6304/9376/files/79021447079.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 5

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_off00009f1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F1B 5376 bytes
SHA-256: 51cfa710b3e0bfd5f2cabc106ec8211e22ce4acb94a0efee75997fae80604d4c
font_01_sfnt_off0000b152.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB152 10512 bytes
SHA-256: b23318c88e473975a51beb91141e07dda353eea6b6915b0dd45fee16a8e977ef

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