Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1ae88a0a2f01980…

MALICIOUS

PDF

37.2 KB Created: 2020-08-14 00:44:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8b90f0901d133fcd266cdba87f1d1d4d SHA-1: 29834d42c56fc8cdf3008d3b8d195b8bf1b75eb0 SHA-256: d1ae88a0a2f01980dc79aa30fdb1df2f6c3033ce7efc4e302c736e9ee4185558
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=journal+of+sport+and+social+issues+pdf'. This URL is embedded within the document body, suggesting a social engineering lure to trick users into clicking it. The PDF also contains a link farm heuristic, indicating it's part of a larger SEO manipulation effort. While no scripts were extracted, the presence of the malicious redirector is sufficient evidence of malicious intent.

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=journal+of+sport+and+social+issues+pdf In PDF document text
    • http://nepufo.lillyotasevic.ca/uploads/1/3/1/6/131606289/xusak.pdfIn PDF document text
    • http://files.jasonkapcala.com/uploads/1/3/0/9/130969663/3b62e70d44f0b.pdfIn PDF document text
    • http://jafar.chalkplumbingsuppliesuk.co.uk/uploads/1/3/0/7/130776647/8266609.pdfIn PDF document text
    • http://ruzoxij.markhammeadows.com/uploads/1/3/0/8/130814328/732296.pdfIn PDF document text
    • http://files.lifeongravel.com/uploads/1/3/0/7/130776493/4763255.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/1/0434/4800/8866/files/vusorisivis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9245/1232/files/sugafirapora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0006/9285/files/organic_chemistry_acid_base_approach.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jonamov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/esl_vocabulary_activities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5317/7237/files/b._s._shah_prakashan_b._com_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7900/7398/files/longest_palindromic_substring.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2041/8198/files/editing_removing_pages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5840/5271/files/coursera_r_programming_quiz_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71860998709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1051/4334/files/south_africa_house_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/memew.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 7

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_off000053d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53D8 5140 bytes
SHA-256: ee8166571ba8db1dadf2f107d5223a2b48b6da5f64db08c46fccbace1558c73e
font_01_sfnt_off0000655d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x655D 10096 bytes
SHA-256: 12da0f3e89b94b034bb7b21cd5adbddc1608846afb2ddcc4a0fce4c07f925666

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