Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1ffefefd9d74e3f…

MALICIOUS

PDF

50.1 KB Created: 2020-07-29 18:51:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce15404fe7f3eda77dad194665a48e60 SHA-1: a0e9a3b91dde045c455cab772c1164ab9cd03857 SHA-256: a1ffefefd9d74e3fba1ee27a9b9d75429326424803e9e6961846d47d5fb2dcc1
194 Risk Score

Malware Insights

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

The PDF contains numerous links to redirector infrastructure, specifically 'ttraff.cc', which is flagged as malicious. It also hosts a large number of PDF files on Shopify domains, suggesting a link farm or SEO manipulation tactic to lure users. The ML classifier strongly indicates maliciousness, and the overall structure points to a phishing or malware distribution scheme.

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.cc/pify?keyword=autoit+manual+pdf In PDF document text
    • http://files.anchorfloral.com/uploads/1/3/0/7/130776828/makujevuje_fidamilukewaru.pdfIn PDF document text
    • http://files.julieanneason.com/uploads/1/3/0/8/130874588/6e745b.pdfIn PDF document text
    • http://files.alishaniaphotography.com/uploads/1/3/2/3/132302924/fulapidi-xegogijil-xenedi.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/1/0435/4398/6327/files/wupirawezejijijaronekelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3962/9218/files/fedirokige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/lunirasifemiruporesirin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9582/5320/files/37940091712.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9526/1348/files/mosadovipemudaguvenu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8679/0304/files/rinagedukuzoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/boguxexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3195/2536/files/4050306888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2807/0052/files/97483291206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5506/2938/files/lezoxamurisozatetitatoroj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4925/5061/files/77457681464.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_off000085cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85CD 4668 bytes
SHA-256: 57de7c4dd5e9e44b88e00922c2aa30dcb97dbad06b5be224092f3d74fb07be94
font_01_sfnt_off0000958e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x958E 10676 bytes
SHA-256: 5f51cd2aab4128f9bdc6ea341f367052fc3d2ea21909de331bf9e0d579cd0472

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