Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c4147c0be9ad763…

MALICIOUS

PDF

43.2 KB Created: 2020-08-19 11:57:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce7cbd46c2dcdb2d87302b482eef6847 SHA-1: 171d14f1008e616c91bd81f53eb6207b1255c900 SHA-256: 5c4147c0be9ad763ccb1f6b5ff79f8acb5409162072bfe1cc8d80799d41fac91
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of links, many of which point to redirector infrastructure designed to obscure the final destination. The primary redirector URL, https://ttraff.ru/pify?keyword=free+trend+analysis+excel+template, is associated with malicious activity. The document body, though heavily obfuscated, contains similar URLs, reinforcing the lure of free templates to drive clicks to malicious sites.

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=free+trend+analysis+excel+template In PDF document text
    • http://files.verarey.com/uploads/1/3/1/1/131164129/3095173.pdfIn PDF document text
    • http://files.bryangatescfi.com/uploads/1/3/1/4/131406781/lujufi_tizefa_tidapu_sunazuzem.pdfIn PDF document text
    • http://files.melissarae-photography.com/uploads/1/3/0/7/130740375/wumonur.pdfIn PDF document text
    • http://files.traceyboolgardenwriter.com/uploads/1/3/0/7/130775357/bofomaxenivafaxajof.pdfIn PDF document text
    • http://files.gallery1515.com/uploads/1/3/1/8/131856160/vunosubunoropunar.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/1/0431/5004/9446/files/xesodaweziporejilirux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8307/9588/files/logical_reasoning_and_mental_ability.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2186/8960/files/copilot_bike_seat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18608783112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8960/8360/files/92982924693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5740/4309/files/37893630276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6558/9414/files/sererona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0521/2832/files/suvupumoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4937/7174/files/33201883006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6457/2569/files/alkuu_kitap_indir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0569/7438/files/vonaxok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7926/1590/files/rupiwodamejovakulapog.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 8

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_off00006b50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B50 5344 bytes
SHA-256: 013829375783c6718dbc0821d35ce737fffa8bed6ccb318149bb36044665756c
font_01_sfnt_off00007d72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D72 10080 bytes
SHA-256: 3ffeae3b8e46ae3744b3f6bb48ada7f3f7dec81865e9ee428411cc9bb7dbf176

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