Malicious PDF — malware analysis report

Static analysis result for SHA-256 97e982103dd34334…

MALICIOUS

PDF

44.1 KB Created: 2020-08-20 04:33:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a05bdcbdb5ed9c9c69c9e57b022274b2 SHA-1: 8a6a7480a6b42603739363eeb67329e1302c4d8c SHA-256: 97e982103dd34334a8143a445f8e3fea5ecc5981b4bf1fbfe1d966becdaae0a8
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to other PDF files hosted on various domains, indicating a link farm. One prominent URL, 'https://ttraff.cc/pify?keyword=engineering+technology+practical+guide', is flagged as a malicious redirector. This suggests the document is part of a scheme to distribute malicious content or manipulate search engine results, rather than providing legitimate information.

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=engineering+technology+practical+guide In PDF document text
    • http://files.talltalegaming.com/uploads/1/3/0/8/130873820/wozexiv.pdfIn PDF document text
    • http://files.montoyaenglish.com/uploads/1/3/2/6/132681378/6450283.pdfIn PDF document text
    • http://sojejuso.rowlettramblings.com/uploads/1/3/1/4/131438641/zubox.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/1/0433/3253/4440/files/aisin_water_pump.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2304/6555/files/61863245553.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29025511016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0792/5654/files/45573726844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6965/1606/files/devijuwevalamefolak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2574/3515/files/wovawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8564/3419/files/revakimefewimuwusasebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6397/4815/files/91062217093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/buxigol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9599/9129/files/zitezawigomarororakak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5560/2078/files/58689848602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7962/3071/files/23449549755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/58728983585.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006df1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF1 5216 bytes
SHA-256: 88b7abfd341659a89a0cdb5c23dddc9c98add9e3305bdacdceb3a3ba5c01bcb4
font_01_sfnt_off00007fa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FA8 10256 bytes
SHA-256: dce53c7d53a2976a2d38d8ba7010ac9119ed7f01d10eb98fe22ee40b7293ac46

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