Malicious PDF — malware analysis report

Static analysis result for SHA-256 09aa7e1ab39717e2…

MALICIOUS

PDF

39.6 KB Created: 2020-08-02 12:36:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c11b0b6eb386488139cdd3ea1785e389 SHA-1: 71635b2a10325b84911702992adb61359768a3e6 SHA-256: 09aa7e1ab39717e2c61ddacb7b64b5de6f753f6bfeba99c22e81fc7c0f770bba
194 Risk Score

Malware Insights

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

The PDF contains a link to a malicious redirector, identified as a free-download phishing lure. The document body, though obfuscated, contains the same redirector URL, suggesting an attempt to trick users into clicking it. The presence of numerous links to external PDFs, many hosted on Shopify, indicates a link farm strategy to improve search engine ranking for malicious content.

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=ac%252F+dc+big+balls In PDF document text
    • http://files.archaeospain.com/uploads/1/3/0/7/130775017/1243620.pdfIn PDF document text
    • http://files.qualitycraftedstoragesheds.com/uploads/1/3/2/6/132695418/2709159.pdfIn PDF document text
    • http://files.albertmerolagallery.com/uploads/1/3/2/7/132710634/rogokajewoj.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/1/0433/0687/7080/files/41078692832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8773/2644/files/96614396628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/kuxutirizomifuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5797/9304/files/51342618815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5586/6263/files/kuxebige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/73121007565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3474/6790/files/naviralefubapipuluwevapag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7423/8102/files/jomewidisefidarotagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6341/9815/files/sefatipijifawenademu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/581871399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5524/2655/files/watixitaki.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 6

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_off00005f21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F21 5176 bytes
SHA-256: 66b60f667590c2779571e192e1c5478cc16f784c738f8686d3858bb22401a94e
font_01_sfnt_off000070dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70DD 9800 bytes
SHA-256: 5f589be9bfd08a2aa7156fc44062b2270413a34458fe304756bd882baff3c19d

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