Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c8bc26a432fde4c…

MALICIOUS

PDF

47.2 KB Created: 2020-08-19 12:59:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9b2682e9be9708b833c9e0bea3789595 SHA-1: 1c6a6718ff16490a382705ecc64626164c37b4e2 SHA-256: 2c8bc26a432fde4c4c59a15612c307888849ab9c4391db6c2bb18675d62265a5
194 Risk Score

Malware Insights

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

This PDF document contains a significant number of embedded links, many pointing to Shopify domains, which is characteristic of a link farm designed to manipulate search engine results or distribute malicious content. The primary malicious link, https://ttraff.ru/pify?keyword=chatuchak+market+section+guide, is identified as a redirector to known malicious infrastructure. The document body, though partially corrupted, contains text related to 'Chatuchak market section guide' and the malicious URL, suggesting a lure to trick users into clicking the link.

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=chatuchak+market+section+guide In PDF document text
    • http://files.ccscatu.org/uploads/1/3/0/7/130739697/riruta.pdfIn PDF document text
    • http://sabotubo.mywildbeat.com/uploads/1/3/1/0/131070487/1925496.pdfIn PDF document text
    • http://files.theclaytonconnection.com/uploads/1/3/0/9/130969761/relemalagedokavit.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/1/0430/9850/5369/files/background_music_for_ppt_slides_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7955/7535/files/amazing_science_book_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5552/9640/files/html_link_to_bookmark.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0252/7897/files/93552571490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9524/2392/files/kukis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/mavagekafubofoxujebekiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3251/8555/files/how_to_become_a_successful_motivational_speaker.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0028/2783/files/56010036644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2346/5628/files/98882462050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6516/3422/files/dutotikifodokumuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7818/0257/files/vedugizafutolememofibukel.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_off00007a3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A3B 5292 bytes
SHA-256: 55f50a84b4fd9b2c8c35b0ef06ebb27c295f2094df7787032540354699a72e58
font_01_sfnt_off00008c0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C0D 10660 bytes
SHA-256: 65d72c22030ddba968b8c875e3c6d627376960f300ce5e01a06e87a7f22dffcf

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