Malicious PDF — malware analysis report

Static analysis result for SHA-256 983473a1723f9c90…

MALICIOUS

PDF

45.3 KB Created: 2020-08-01 09:53:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 690fa0a27fc86c646328eb29289348cf SHA-1: 3c76ec3a48e8224bec4dff1a39aa1da9065110ec SHA-256: 983473a1723f9c90a97504dbd4e62fd5df4625f12204629159e05451670176ba
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link that redirects to a malicious URL, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=how+to+uninstall+office+on+mac', suggesting a social engineering lure related to software uninstallation. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many hosted on Shopify, likely to obscure the malicious redirector. No scripts were extracted from this sample.

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.com/pify?keyword=how+to+uninstall+office+on+mac In PDF document text
    • http://files.kimkirch.com/uploads/1/3/0/7/130775827/welobozutudirol-fulunim.pdfIn PDF document text
    • http://files.bloc145.com/uploads/1/3/1/6/131636995/wexaj_ruviguruwo.pdfIn PDF document text
    • http://files.wanderingwildandfree.com/uploads/1/3/1/1/131164537/xatinepapelawo_xetemisewonit_zamozuw_nidolomug.pdfIn PDF document text
    • http://files.danieleantoniella.com/uploads/1/3/0/8/130873718/5950764.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/53681635306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1862/3896/files/57243494080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tijubijevuvikupox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8056/4392/files/56642546512.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7641/9744/files/piporuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5934/5573/files/biwotim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4101/3415/files/naripezuzirilaligabegizoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8150/7740/files/tinaximaditux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6203/4589/files/61075798723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38608120386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5674/3079/files/80335094606.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_off00007355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7355 4984 bytes
SHA-256: d6ba9887b69ceb65b3c9870b83f6a4541ab29992d4b28eb60dd7a373c53246c6
font_01_sfnt_off0000844b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x844B 10660 bytes
SHA-256: 82a14e0bca0d498a528703d02db5922413fb740b5e21ad4aea0a727e14decb38

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