Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee4f443f7b3ceffb…

MALICIOUS

PDF

67.2 KB Created: 2020-08-08 01:58:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c57d10bd6313e92d22294dca5f01b2f SHA-1: bb2ce32e7abfd76778031a45aff69ba836432b93 SHA-256: ee4f443f7b3ceffbe793e6061cba8c264113134b1afe8461617e57872aca1721
194 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to a redirector service (ttraff.cc). This indicates a link farm or SEO poisoning technique designed to lure users to malicious content. The presence of the malicious redirector URL strongly suggests the document's purpose is to redirect users to a harmful site, likely for phishing or malware distribution. No scripts were extracted from this sample.

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=carbonates+in+soil+pdf In PDF document text
    • http://files.sharongollan.co.uk/uploads/1/3/0/8/130874124/4da2656.pdfIn PDF document text
    • http://nimar.molivery.ee/uploads/1/3/2/3/132303382/xakamabevaduvew.pdfIn PDF document text
    • http://files.kristalynshefveland.com/uploads/1/3/0/7/130776054/7093362.pdfIn PDF document text
    • http://files.5rocksdistilling.com/uploads/1/3/1/4/131483343/5926007.pdfIn PDF document text
    • http://files.clubdanger.com/uploads/1/3/1/4/131406222/xufuleva_lubagatalozam_xagufejuloto_kuzezabizavupow.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/1/0428/0310/1863/files/t300_key_programmer_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/84477954511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1345/6550/files/diagnostic_interview_in_clinical_psychology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1322/6139/files/jomezavusese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lenibokufilitixesokan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8443/9971/files/goxajevemugaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0192/1184/files/xodekavabodupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/69328324485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3707/2280/files/anemia_hemolitica_autoinmune_en_nios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7541/9798/files/80941451808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42257023754.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_off0000be8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE8A 5080 bytes
SHA-256: e56c2a2f9f81a22a5399525e5acb456bf61ca41125655f84b616bf598a7b2218
font_01_sfnt_off0000cfd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFD1 14992 bytes
SHA-256: 8cf4a71c3cf9eddb345d08d34ca046141deaa7cd6015532c6fdbeeb6d63d68b3

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