Malicious PDF — malware analysis report

Static analysis result for SHA-256 01264b1e3c5af6ca…

MALICIOUS

PDF

42.4 KB Created: 2020-08-12 04:50:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d8b631f9e2fc88c94f0416c1f6c5d1cf SHA-1: ce3d403424817270ba523f3a150cc58ed3d291a7 SHA-256: 01264b1e3c5af6ca5129bb443bcbc8b531f37df3e858a459c77d8c55bc827a08
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector (ttraff.com), suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text that appears to be a lure for 'clinical pathology hematology pdf'. The presence of embedded URLs and the heuristic firings strongly indicate malicious intent, likely to redirect users to malicious sites or download further payloads.

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=clinical+pathology+hematology+pdf In PDF document text
    • http://numisaru.mirrorsireland.com/uploads/1/3/2/7/132741099/ed05320ad.pdfIn PDF document text
    • http://files.catwalkgodalming.com/uploads/1/3/0/7/130776518/9043450.pdfIn PDF document text
    • http://files.cvpitvn.com/uploads/1/3/2/8/132815866/3ed40e06ca479.pdfIn PDF document text
    • http://files.therealdealwyatt.com/uploads/1/3/1/8/131856883/vinegezifogot.pdfIn PDF document text
    • http://files.andreanelson.studio/uploads/1/3/1/8/131871690/b02bc.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/1/0429/2021/4681/files/4715548030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/lagesusesidifedufobuzenew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9900/4831/files/witewizifadipumupip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2681/6932/files/33907742294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1168/1958/files/penggabungan_file_jadi_satu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2475/0491/files/xokofutepiguke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2682/4863/files/gibadanosowevixijasijopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4248/8998/files/35508752594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8451/2406/files/children_santrock.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5278/6074/files/92084546104.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_off000065ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65FF 5300 bytes
SHA-256: 811479dcf07101eaae8e8677a1d7a72a84f44de612a10f395df9180b6755bd30
font_01_sfnt_off000077e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77E1 10280 bytes
SHA-256: db012dc88f78428f8644ae2baff6e4b8be4fc90818f333c48915f119ddc31a09

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