Malicious PDF — malware analysis report

Static analysis result for SHA-256 43544531bfbea72a…

MALICIOUS

PDF

45.2 KB Created: 2020-08-18 17:58:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68bc227562e32804dcf780a92a3be2de SHA-1: 712385487b79f4b0733c27e0db593dabdae7164f SHA-256: 43544531bfbea72aa6979abd9ee384e21c2510bcd03a2ff943aef62827883d33
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing 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. The presence of a 'download' button lure further supports the malicious intent of directing users to potentially harmful content. No scripts were extracted from this sample.

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=functional+requirement+specification+document+format In PDF document text
    • http://files.belleandboy.com/uploads/1/3/0/7/130776130/1a1ec136.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9480/9512/files/xupetavufatira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0088/8469/files/magnetic_current.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5032/6426/files/tns_believe_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9244/2277/files/tomidofakurifajino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4855/0050/files/bangla_to_english_translation_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5932/2773/files/18807186771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4153/7696/files/35460166489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/jodasuvapudin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7604/3423/files/43846150610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/24861821316.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 1

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_off00006485.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6485 5264 bytes
SHA-256: c438e49ef53af0f2ca7b52c8320482b328430c0d2ea6ac1bebab4da6e8d577dd
font_01_sfnt_off00007644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7644 10344 bytes
SHA-256: 4556323cee00302ac7b2e944dc72f8d1888dfec939bb1c5b17885bdbe4191532
font_02_sfnt_off000099a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99A7 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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