Malicious PDF — malware analysis report

Static analysis result for SHA-256 92e167147a4373b2…

MALICIOUS

PDF

138.8 KB Created: 2020-08-08 13:21:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ac3084e45f1c3d22d0d25835e3f7458d SHA-1: fee7a405e9a43c01d40d208e268e2e97714d37f5 SHA-256: 92e167147a4373b21386b825238ad8bd1932e66dee546092f10d9e5a679dba53
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=clustering+algorithms+hartigan+pdf'. This indicates the document's primary purpose is to redirect users to a potentially harmful site. The presence of numerous other PDF links, many hosted on cdn.shopify.com, suggests a link farm or SEO poisoning tactic to increase visibility and lure victims. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=clustering+algorithms+hartigan+pdf In PDF document text
    • http://files.bluesparrowcreations.com/uploads/1/3/0/9/130969791/fepuxetawevode-gizifika.pdfIn PDF document text
    • http://files.fairtradeswansea.org.uk/uploads/1/3/2/6/132696018/vunemalisoso.pdfIn PDF document text
    • http://vemonoti.littleprayersforlittlefolks.com/uploads/1/3/1/3/131398020/c1b7baa5.pdfIn PDF document text
    • http://ladolovum.mississauganation.com/uploads/1/3/1/6/131606490/2791747.pdfIn PDF document text
    • http://files.sellingmomma.com/uploads/1/3/0/8/130814586/besozinib.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/1/0436/9953/6040/files/16165402887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9321/3855/files/95417705329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2025/4375/files/nejokarofifojoxajem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2109/0471/files/20834821966.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3092/0871/files/66872572152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6905/5911/files/napax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/kuzejuzolerotew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6118/2617/files/ea_sports_cricket.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4790/2622/files/85446099725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5180/0981/files/27031268965.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1184/0927/files/pulewewizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1017/8717/files/sales_executive_responsibilities.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_off0001e2d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E2D3 5360 bytes
SHA-256: 542ea8b93fb2ac73e58090386dc8776908fda89072e0225d160e3a264789c7ca
font_01_sfnt_off0001f4dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F4DC 12196 bytes
SHA-256: ff1d725adefd3c90dea71885d9dc28a0b1854eff990ec0a565ae1c3a0efa97b6

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