Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6547fd993534684…

MALICIOUS

PDF

52.4 KB Created: 2020-08-27 15:59:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0a79f135adaf95afbb50cf389030126b SHA-1: 1bfefcb9c91ec9ef6012c71bb77ecf2f0a2d3069 SHA-256: f6547fd993534684a587ed9a693767ca1d3ab4fe4ba7ac9e8600d9a66e0efc72
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify-hosted PDFs, likely as a lure. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'https://ttraff.link/pify?keyword=multiplying+decimals+worksheets+5th'. This suggests the document's primary purpose is to redirect users to malicious sites under the guise of providing educational worksheets. No scripts were extracted, limiting the analysis of direct payload execution.

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.link/pify?keyword=multiplying+decimals+worksheets+5th In PDF document text
    • http://files.alightalive.com/uploads/1/3/2/7/132712050/gogusafewap.pdfIn PDF document text
    • http://files.daonrestaurant.com/uploads/1/3/0/7/130774962/0081c2c8e4.pdfIn PDF document text
    • http://wifoni.blossomempowerment.com/uploads/1/3/2/8/132814930/rugijoranonezewop.pdfIn PDF document text
    • http://files.fermatathegreatpause.com/uploads/1/3/0/7/130740625/lagujurin_mopapana.pdfIn PDF document text
    • http://turuxob.mgss.com/uploads/1/3/0/7/130739344/dabagadogifovodip.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/1/0435/8491/3565/files/gabizux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9305/6933/files/14540222454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7070/8129/files/pufogivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7804/8162/files/biochemistry_by_lehninger_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4244/8295/files/norux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2508/4065/files/amar_chitra_katha_mahabharata_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3729/4745/files/ramulisoxep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8036/6745/files/67184178685.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000777d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x777D 5756 bytes
SHA-256: ad123309e034c63efb3bb0cf80305a4be37717fb7bac0819f9478100eacaf318
font_01_sfnt_off00008b03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B03 13640 bytes
SHA-256: b33442a6a32861bab0f692ce15f04b1059892fba9c2fa04f8dcb775353c94ab3
font_02_sfnt_off0000b632.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB632 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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