Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e1626d1a63c071a…

MALICIOUS

PDF

40.2 KB Created: 2020-08-15 05:29:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 83f62e2eb461ac2aca86eedc7bffd2fa SHA-1: 0079cd20ebb8fc3068e3050ae3b6659d6874b6e7 SHA-256: 6e1626d1a63c071ae3dff641379e80f99e3c3c74ea22401d229bb11d9d796c47
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that is flagged as malicious. The document body and heuristics indicate an SEO-based lure, likely attempting to trick users into downloading malware or visiting malicious sites under the guise of free content. The presence of embedded URLs and the ML classifier strongly support 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.ru/pify?keyword=anime+freak+apk+baki In PDF document text
    • http://vetejuge.platetrotter.com/uploads/1/3/1/4/131454065/zujujevuwevefa.pdfIn PDF document text
    • http://files.howigotcustody.net/uploads/1/3/1/4/131482952/2cf65fba9d0c1.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/1/0428/9835/8432/files/89647405972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6067/2165/files/11371479507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7446/0579/files/empirical_formula_and_molecular_formula_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/63055524639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3470/6083/files/dikajujosenediwepananopib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4475/6901/files/gikigewiredopuzoxago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4647/6708/files/72544695479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/77152681447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6912/6309/files/vekibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7258/4861/files/elder_scrolls_oblivion_pc_cheats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4183/2615/files/3217316110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0920/2597/files/75562256343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6655/5556/files/what_is_fractional_distillation_gcse_answer.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_off000060cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60CF 5028 bytes
SHA-256: 2034220b5e478c355e55b756a5421b71f114056750ca6a21284a8d07a5d028be
font_01_sfnt_off000071ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71CE 10060 bytes
SHA-256: 0bc066a7495420f7ac91ee619d0bb77707297d65f09877f8f2a2f2f7c071aa92

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