Malicious PDF — malware analysis report

Static analysis result for SHA-256 79e960ae8c93c55f…

MALICIOUS

PDF

37.3 KB Created: 2020-08-02 23:10:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4072282ca9bf1c8514a2e2d7e0988d2a SHA-1: 5cbdfa296c296b0bb09806c2af2f59a3348a561e SHA-256: 79e960ae8c93c55fd48869c7030ea4fcdd6f3d0b6208d9eaa4b9459f6a83465f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.cc) and then to other PDFs hosted on Shopify. This pattern is indicative of SEO spam or a phishing lure, aiming to drive traffic to malicious or unwanted content. The ML classifier strongly supports the malicious verdict.

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=talina+ann+zsido In PDF document text
    • http://files.mkalust.com/uploads/1/3/1/3/131398129/5383434.pdfIn PDF document text
    • http://files.tresasbridal.com/uploads/1/3/1/6/131637325/mavesafesuto-judebafetuser-bikix-newasewuduse.pdfIn PDF document text
    • http://files.whistleractiverehab.com/uploads/1/3/0/7/130776069/sudekaranuzi_kubotesasezibu_xetusenowul.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/1/0433/9305/6933/files/zibibegifaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/vukexewudazegazotaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6778/4864/files/josowumenokovejegatipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0006/0310/files/diamond_video_capture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7574/7491/files/59889333309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7991/6963/files/35748742394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8519/3625/files/xawikawibuninojapulatali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3739/9957/files/persona_5_red_panel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/test_1879eb6a-339e-4d45-a409-571cd94a4742.pdf?v=1594212285In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8129/3221/files/titutowawal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6967/6451/files/75320589702.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_off00005568.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5568 4720 bytes
SHA-256: d8d291847baecf6b7052ebb0ab5144f36d68a2cd71d1d253e869d5236b52f9d9
font_01_sfnt_off0000658a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x658A 10376 bytes
SHA-256: 160daded37c3f2e0e1f63e1e377370591f3fd6676545930fdb0067ac38051575

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