Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ce4d77cfaa2cea1…

MALICIOUS

PDF

46.5 KB Created: 2020-09-19 19:11:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 039b4afcd565c6dde7c2627acb7e4336 SHA-1: 044b5e61887d35f7b2f1b39730aa1f8cb4825a8b SHA-256: 4ce4d77cfaa2cea1866a82a2c4ef0627a762f9579c7be99b4b4561ab34ff8389
234 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The embedded links, such as 'https://ttraff.me/wix?keyword=dark+souls+timeline+games', are likely designed to lure users to malicious sites. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the sheer volume of outbound links suggests a delivery or phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.me/wix?keyword=dark+souls+timeline+games In PDF document text
    • http://files.stjamesbands.com/uploads/1/3/0/9/130969373/2502521.pdfIn PDF document text
    • http://files.canineconciergeservices.com/uploads/1/3/0/8/130873715/kimifesozosepe.pdfIn PDF document text
    • http://bumujav.gogroweducationalconsultingtutoring.com/uploads/1/3/2/6/132695643/1727642.pdfIn PDF document text
    • http://tufuza.letsgrowfarmshawaii.com/uploads/1/3/0/8/130814328/kivorufirid-kitir-filulasex-bakimu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://1f99cec0-57b2-4600-b668-c70305ce2c1d.filesusr.com/ugd/8a9bcc_c9abef2e063f473ca82dd5e36f8d5378.pdf?index=trueIn PDF document text
    • https://68510aa8-27a3-47f8-8b00-b16523d17619.filesusr.com/ugd/9757e7_25f1cb1b37b74af6b113fbd813962725.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6227/1898/files/nescafe_cappuccino_nutritional_information.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5108/1114/files/minecraft_steve_flossing_gif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7122/3446/files/devathai_vamsam_neeyo_song_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8569/9997/files/ecological_succession_webquest.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_off000079c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79C6 5068 bytes
SHA-256: cef5998e8ebba41d41daaac8ab422dc93bfa8fbfdb956544d62d2d2d68c7370c
font_01_sfnt_off00008af8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AF8 10144 bytes
SHA-256: f87a8ea6093945ba4820b3b5258ce90a8aed6ae66bb1b3fc21b84457168785b2

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