Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd37f78ebdea14eb…

MALICIOUS

PDF

41.5 KB Created: 2020-08-25 00:51:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c4fe6f02a0487d18e440586d1cb87424 SHA-1: b4d1b06cf1346b30fd3b66fab67c8ff97947cce5 SHA-256: dd37f78ebdea14eb3a23ad78c8768252ddbbb8366d9a5adf68ab8bf3960be080
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link to ttraff.com, which is flagged as malicious. It also features a link farm of numerous PDFs hosted on Shopify, suggesting an attempt to manipulate search engine results or distribute content broadly. The presence of a visual download button further supports the lure to click the malicious link. No scripts were extracted, limiting the analysis of the payload.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=emulateur+android+sous+linux In PDF document text
    • http://files.roamingcic.com/uploads/1/3/2/6/132683087/rejowodobezi-fewibakawugaj.pdfIn PDF document text
    • http://files.thenauticalartsworkshop.com/uploads/1/3/1/6/131606035/bikebawifutir.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/1/0428/9835/8432/files/62042090741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9472/7074/files/1446308810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5319/4152/files/20623928599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6399/2477/files/expanding_and_factorising_quadratics_worksheet_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9765/7248/files/zevazifaluve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8259/6004/files/88972220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8762/5369/files/gijajabifuwerunusinil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/muturokotogod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0708/1630/files/dulepi.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_off00006534.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6534 4996 bytes
SHA-256: ee18b6adbce4ff0738fd9b680b9962851e701ea486546549f793df78d89acddc
font_01_sfnt_off00007612.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7612 10420 bytes
SHA-256: a9dde574055870c594219584c487a32bfa4846c339aa7910f7eba721ce86ed23

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