Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1c40e3e09589e41…

MALICIOUS

PDF

41.2 KB Created: 2020-08-08 09:20:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b74e13e1dafc2b974260e34aaf69d1c2 SHA-1: 19684cceb10e48a0d35f3281a36cebde7c727152 SHA-256: a1c40e3e09589e41d68e9ed04ffcc939fea56388911e0b99d1d9a24b297eaba5
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with a critical heuristic firing indicating a malicious redirector. The primary URL, https://ttraff.com/pify?keyword=definicion+tecnologias+emergentes+pdf, is likely used to obscure the true destination of the malicious content. The presence of numerous Shopify links suggests an attempt to blend in with benign content while directing users to malicious sites.

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=definicion+tecnologias+emergentes+pdf In PDF document text
    • http://files.aandloils.com/uploads/1/3/2/7/132740327/7db75e95.pdfIn PDF document text
    • http://files.bacmethadone.com/uploads/1/3/2/7/132740804/394ce56.pdfIn PDF document text
    • http://files.slightlysharpenterprises.com/uploads/1/3/0/8/130873983/aab6cd.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/1/0440/8265/9493/files/94721361095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3191/9765/files/juvefujeluxej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7527/2855/files/18496643932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7661/6346/files/zuxagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6676/9051/files/44877511161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7055/3238/files/netipiberokexab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9340/2524/files/troy_bilt_3000_psi_pressure_washer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7325/files/41375163078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2521/0263/files/wiloponabesiso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/5110236132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9416/3109/files/jibaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/96905892254.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 2

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_off0000610d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610D 5476 bytes
SHA-256: e3ad03ff1c7676ec2bdbfcb17f66d480a7e0b03d637bf316ad71d9f867fdc5de
font_01_sfnt_off0000739d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x739D 10616 bytes
SHA-256: ca736c7c113824994a326a8c46e4ce123f8d36f90c73661734b294efa08d40a8

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