Malicious PDF — malware analysis report

Static analysis result for SHA-256 3181f09ceb76530e…

MALICIOUS

PDF

51.1 KB Created: 2020-08-27 12:57:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c6bad4d5fc7e3367f3e887734ddab9c SHA-1: e89156f2c4141bc46621ecf9e4128d4c3eb3c705 SHA-256: 3181f09ceb76530edad7764f0ea0515e3a6aa53055ee8517308ff231d4b9e038
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a redirector service (ttraff.com). The document body text, though partially corrupted, suggests a lure related to plant health. The primary malicious indicator is the redirection to a known malicious URL, likely intended to lead the user to a phishing or malware distribution site. 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=bitkilerde+%25C3%25B6l%25C3%25A7ekler+nas%25C4%25B1l+tedavi+edi In PDF document text
    • http://files.3daudiosense.com/uploads/1/3/0/9/130970001/pixazazipul.pdfIn PDF document text
    • http://files.fusioneventsworldwide.com/uploads/1/3/1/4/131437969/luretoselukaxifomuw.pdfIn PDF document text
    • http://files.nicreconciling.org/uploads/1/3/1/8/131857920/zifawax_zemupepirezized_tukatoxijeda.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/1/0435/4077/5064/files/63908236481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2122/7416/files/87080682295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7698/3713/files/eichmann_em_jerusalm_em_portugues.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8984/5671/files/mb_cla250_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/0575/4776/files/clearance_sheet_vinyl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2568/6951/files/fuves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1798/4405/files/adductor_rehab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0931/8813/files/19829757669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4420/8797/files/wurowakiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tokavurovapipemekimisam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7128/3098/files/xefamopeniliridimogave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/apa_format_for_conference_presentation.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 7

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_off000085a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85A9 5344 bytes
SHA-256: 33d5a1d20ba21221b1cb9ecef6b8154076d1c0270c3b2f08273c07e54d9b449d
font_01_sfnt_off000097b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97B5 12192 bytes
SHA-256: 4de5281d4ef4abd12c1ffa8b6f946eb99b4369fe2d79a38ef744967a41c0d80a

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