Malicious PDF — malware analysis report

Static analysis result for SHA-256 7668b21bd7e4ce93…

MALICIOUS

PDF

63.0 KB Created: 2020-08-08 05:18:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 09c61b540699875935e1033787efe809 SHA-1: dd58a428e53712eb1e758b91b77c891c5b068887 SHA-256: 7668b21bd7e4ce932060ed8ce4db4d109515475794cd6345868c421bdf8c2850
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it is a malicious redirector and part of an SEO link farm, designed to phish users. The embedded URL, https://ttraff.com/pify?keyword=organophosphate+and+carbamate+poisoning+pdf, is a known malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting it is the primary lure.

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=organophosphate+and+carbamate+poisoning+pdf In PDF document text
    • http://files.lifeindustries.org/uploads/1/3/1/3/131380723/9b1de54153e2a9.pdfIn PDF document text
    • http://files.katrinamoorebooks.com/uploads/1/3/0/7/130775347/1945682.pdfIn PDF document text
    • http://files.missourimidwivesassociation.com/uploads/1/3/2/6/132695200/zumod_xatejepijokede.pdfIn PDF document text
    • http://files.energygroupuniversity.com/uploads/1/3/1/6/131606670/4d31e1.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/1/0438/2857/6416/files/8857324169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2811/9706/files/bitolixivufenazud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8478/3509/files/jezaxalorasipekaralak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4635/4592/files/59591424544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5788/2022/files/sojixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1962/4870/files/mukijekunavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9513/7187/files/marilyn_manson_sweet_dreams_mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1535/6067/files/toefl_structure_test_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5027/7783/files/duzosizezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3729/4754/files/12585224921.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_off0000b563.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB563 5704 bytes
SHA-256: 326f9d44fba761dc382a0c8c049e4f2245383f5f7e571bf6643b1260f5d25029
font_01_sfnt_off0000c89a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC89A 12012 bytes
SHA-256: 828ad561b7a9d7f63d99f2ca8de3409760f13f37c5e390cf5966cab6e196e534

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