Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f908d7ff25cbbeb…

MALICIOUS

PDF

59.5 KB Created: 2020-08-06 15:16:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89d77172c38c1bcb4251ea20c5d4912e SHA-1: 3cc222341af1e00150dcb7a332227ad72520b9a9 SHA-256: 8f908d7ff25cbbeb2f24eabc731dd9c34f3f2a4ac3bfb165612a0c8e6d7a3447
194 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a common tactic for SEO poisoning and redirecting users to malicious sites. The primary malicious link, 'https://ttraff.cc/pify?keyword=nigeria+accounting+standard+board+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to the same URL and a related benign Shopify URL, suggesting a lure to trick users into clicking the malicious link. No scripts were extracted, limiting the analysis to the document's structure and embedded links.

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=nigeria+accounting+standard+board+pdf In PDF document text
    • http://files.loavesandpiles.com/uploads/1/3/1/6/131607075/5698602.pdfIn PDF document text
    • http://files.student-teaching.us/uploads/1/3/0/7/130739528/nevumelekiriva-xazufufijobigu.pdfIn PDF document text
    • http://files.happydogsestepona.com/uploads/1/3/2/7/132710700/4227128.pdfIn PDF document text
    • http://files.smithlab.ca/uploads/1/3/1/0/131070165/9470658.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/1/0428/6893/2767/files/vagetuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8529/9874/files/47807056893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejumaxerufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5630/0186/files/boxizekimiduzovef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8524/1256/files/484630536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7176/6695/files/19873602044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9816/8743/files/12328976030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5689/0013/files/19167618849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7949/8918/files/nejapikiriru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8643/8807/files/52494230699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2529/9606/files/ledemedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9150/1990/files/nejixokasanimagoloralafot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8237/5577/files/27066164269.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 4

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_off0000ac76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC76 5400 bytes
SHA-256: 094b3e5bdd5205c9297f5ba64ab27aad6f442b4a0223c00fe1c62697ebef5ce6
font_01_sfnt_off0000bee2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEE2 10036 bytes
SHA-256: a76fcc26697f8311d2b84155ce41a362e26ad9784b67e2db15336ab6e41935f3

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