Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cb9fd410e5ef163…

MALICIOUS

PDF

31.9 KB Created: 2020-08-22 03:00:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5388ec99e295feecaf3d17c463c85854 SHA-1: 5fc1ac959fd9f26b99178bee34f29941b076389d SHA-256: 1cb9fd410e5ef163522338e2c341d1193ce47b89d83d3ff5a62f7876fbf66841
162 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=eclipse++2019-+09'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though partially corrupted, contains references to 'Eclipse 2019-09' and the malicious URL, suggesting a lure to a phishing or malware distribution site. 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=eclipse++2019-+09 In PDF document text
    • http://mebab.chabadeli.com/uploads/1/3/2/7/132740478/df7f352.pdfIn PDF document text
    • http://files.olympialactation.com/uploads/1/3/0/7/130775198/kogaxikegudep.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/1/0428/1820/7911/files/gasunidokukokelile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8275/2935/files/pobesudemagowifunonaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5535/7852/files/55818551143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/suramagufumaxuragozud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9371/2286/files/formalism_literary_criticism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8523/3318/files/contexto_social_ejemplo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5646/3014/files/au_bonheur_des_dames_livre.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6560/6301/files/78626091265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2325/4179/files/99572855205.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 1

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_off0000415d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x415D 5092 bytes
SHA-256: 223bfcc4de90d08b915e03b61eddbc2a90e92872b38004173672263d516328ef
font_01_sfnt_off000052ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52CE 9576 bytes
SHA-256: 7ec237a29b1156fb501897b8bec8d8cb7ed483d158192f29accac8c9084b244a

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