Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3b0bbfbe3084c1d…

MALICIOUS

PDF

48.6 KB Created: 2020-08-20 04:16:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d55e01f2a16448b918fd0bfbb11b3b0c SHA-1: 920ca1f6f7c18ceb9f27506d3c563c1fe701e03a SHA-256: f3b0bbfbe3084c1da772ff88acbe522555e2bcef88e913b3869afb85444e307a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though garbled, contains the same URL, suggesting it's the primary lure. The ML classifier strongly supports the malicious verdict. No scripts were extracted, but the link farm and redirector indicate a likely phishing or malware distribution attempt.

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=background+flower+vector+free In PDF document text
    • http://files.journeyoftrust.net/uploads/1/3/1/3/131380343/4971448.pdfIn PDF document text
    • http://lavadukul.tidytimeservices.com/uploads/1/3/2/6/132680981/5344373.pdfIn PDF document text
    • http://ximines.learningexchanges.org/uploads/1/3/0/7/130775565/9604509.pdfIn PDF document text
    • http://files.pyrographystore.com/uploads/1/3/1/6/131606965/dd8a30c1e918.pdfIn PDF document text
    • http://ririzi.eatcheap-eatwell.com/uploads/1/3/0/9/130969060/3155321.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4886/7742/files/bcit_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9679/1456/files/59665545070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7219/2669/files/3120984180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0467/4727/files/rerekeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3512/2081/files/mazobeneporewijemiwatifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5353/1807/files/74742572311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7930/1288/files/sho_oulth_horror_of_oryx_mars.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8454/6209/files/91416643404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mupuxisupevijerabufogete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5833/9733/files/alphabet_lettering_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3524/5216/files/avantages_de_l_allaitement_maternel_exclusif.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000757e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x757E 5112 bytes
SHA-256: 3d768bef3480b182f3f371bd4e2f10a2b89f1cd1e279535df6f347e7baa879d2
font_01_sfnt_off00008707.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8707 9504 bytes
SHA-256: c43e209736f5b6b9a8f97338bdc093468ab8ac320305bdd3217528f55af3153e
font_02_sfnt_off0000a76d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA76D 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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