Malicious PDF — malware analysis report

Static analysis result for SHA-256 a74cfa2fb937c56d…

MALICIOUS

PDF

41.6 KB Created: 2020-08-12 08:57:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ab459fa552825511a09587f42cab7a25 SHA-1: 82be50414d182e7b8c6e6bc206f17452efd58b4a SHA-256: a74cfa2fb937c56d9c549c0f01d10efe82d138b3208c898808b731260a2330c3
194 Risk Score

Malware Insights

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

The PDF contains a high density of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. This suggests a lure to a malicious site, likely for phishing or malware distribution. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=carnatic+music+classes+pdf', reinforcing the malicious redirector heuristic. 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.com/pify?keyword=carnatic+music+classes+pdf In PDF document text
    • http://files.lebanontrailptsa.com/uploads/1/3/1/8/131856815/fevibakujoreja-nunena.pdfIn PDF document text
    • http://kerexurin.gravelleybridgecpc.com/uploads/1/3/1/4/131407469/6607123.pdfIn PDF document text
    • http://files.khairullahrahim.com/uploads/1/3/1/0/131069968/posawazagi-vozijaxobole-vojefufitujivek-bovuvij.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/1/0432/7541/9798/files/goxixaxid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/prism_spectrometer_experiment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3877/7249/files/43735848093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3531/1775/files/pijige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8139/1514/files/18332895423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2419/4468/files/jafokaxowikow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/factoring_polynomials_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6246/8514/files/60800654937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/12180868441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1039/1207/files/san_diego_zip_code_naval_base.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/movikulewerudazuxedo.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 3

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_off000064c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C8 5208 bytes
SHA-256: 64b1934db3c83341cfb8f658faafca94304360ed408ac327816924af354d00af
font_01_sfnt_off0000765e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x765E 10352 bytes
SHA-256: 5ab1f5a9f1bb3c5365a9cff90c9fb16e492999a1eb0d21b6a589e11c958866ee

Open this report in the interactive analyzer, or submit your own file for analysis.