Malicious PDF — malware analysis report

Static analysis result for SHA-256 82841487df60b49c…

MALICIOUS

PDF

62.7 KB Created: 2020-08-20 23:56:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d5be63dc92282c527214c1a65673f547 SHA-1: 04a9dd675fb224bd9ceafef8c6427ab945a7c05d SHA-256: 82841487df60b49cd030fc8e97d583c2b53354a0dfa5acdc4ddd9360861853ac
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a Shopify domain and others to a redirector URL. The primary redirector URL, 'https://ttraff.com/pify?keyword=functional+programming+vs+object+oriented+performance', is flagged as malicious and part of an SEO link farm. This suggests the document is designed to drive traffic to malicious infrastructure, likely for phishing or malware distribution.

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=functional+programming+vs+object+oriented+performance In PDF document text
    • http://gebak.michielwerring.com/uploads/1/3/2/6/132695471/wafijob.pdfIn PDF document text
    • http://bupag.foothillsbeagleclub.com/uploads/1/3/0/7/130775380/wanuwal-zixadi-nigoxujitut.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/1/0435/3048/5915/files/5121640381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8105/6935/files/best_reader_app_for_windows.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62222626122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6134/6466/files/95474242077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xuvoba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2755/4723/files/nccn_acute_lymphoblastic_leukemia_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/80427269735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0904/7708/files/secretary_of_state_ct_concord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2692/2146/files/80435614921.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009c09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C09 5704 bytes
SHA-256: 9a84cc89ca3985626069f5b7fef2b6c255affaf16bd93a07afb7b8874f7a5b0c
font_01_sfnt_off0000af60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF60 10776 bytes
SHA-256: e50c46f2727bcb918c5c01408c7e4df43c8aa51c00c1f8e05ab06755289dd37a
font_02_sfnt_off0000d43c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD43C 16820 bytes
SHA-256: 920a67123ccad91b270f4afa077c80549759ca949e4b6fbb853ac8b0f76eeecb

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