Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea1b883f271c255a…

MALICIOUS

PDF

40.7 KB Created: 2020-08-14 21:19:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 26cceeabb1f00bbfda4e37cb7dd465ee SHA-1: e964664f214455b0d619fca25143e7b7a96f0c18 SHA-256: ea1b883f271c255a010ea0c62b95a4ee9af79a18d1bb27af2bb2d590664cfcf1
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though partially corrupted, contains the URL https://ttraff.cc/pify?keyword=b+tech+information+technology+salary, which is likely used to redirect users to a malicious site. The presence of numerous other links, many hosted on shopify.com, suggests a link farm intended to obscure the malicious destination.

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=b+tech+information+technology+salary In PDF document text
    • http://files.puremsm.com/uploads/1/3/0/7/130776489/170539.pdfIn PDF document text
    • http://files.wildflowerrunner.com/uploads/1/3/0/7/130739987/4498570.pdfIn PDF document text
    • http://supelufu.larryrevoirdotcom.com/uploads/1/3/0/7/130776487/4339615.pdfIn PDF document text
    • http://files.jrlederle.com/uploads/1/3/1/4/131454207/lexised.pdfIn PDF document text
    • http://viginap.elizabethfeltsdesign.com/uploads/1/3/1/8/131871650/7108a8ad57.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/1/0434/5351/3880/files/audit_opinion_types.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9825/0146/files/haldol_decanoate_package_insert.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/48111450400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6749/7880/files/liviferabuzujaremofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0426/2561/files/jarusulafupugakefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9181/2767/files/it_project_manager_cover_letter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0193/0143/files/40179956840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3119/8886/files/umt_cohort_datesheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/jakawomovofedegabuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fatexuxutul.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 6

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_off00006090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6090 5448 bytes
SHA-256: 1d27af7cd841e4302fcb83c68b52896677cae61e8ae71e0552ed69cef3c837be
font_01_sfnt_off000072eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72EB 10380 bytes
SHA-256: 9098d74f501efc7183440fb1ef55d8b14d04ff85a43ac5249055b1d2493fe20a

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