Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fcc38602ba9ad89…

MALICIOUS

PDF

46.3 KB Created: 2020-08-09 10:12:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 816df52befdaf6529753f7b0fd91ed90 SHA-1: 7f5fc90b0144fde083635f0300b4564cbfa8016a SHA-256: 2fcc38602ba9ad893104fcfd32c993d0d38954e915bb132921ec751dcf218322
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a document about 'yield curve theories'. The PDF also contains a large number of external links, many pointing to Shopify, which is characteristic of SEO link farm abuse. The document body contains obfuscated text and the malicious URL, suggesting an attempt to trick users into clicking through to a potentially harmful site.

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=yield+curve+theories+pdf In PDF document text
    • http://files.valskountrycorral.com/uploads/1/3/0/8/130813531/soxubevosajapax-dupuna-vofoxepokibobi-nokedoled.pdfIn PDF document text
    • http://files.amoryshelter.com/uploads/1/3/1/0/131070231/koduripidenofiro.pdfIn PDF document text
    • http://files.kramerjewelers.com/uploads/1/3/1/3/131384789/diwejunopisis.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/1/0432/5474/3200/files/certified_ethical_hacker_v8_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2151/6445/files/characteristics_of_language.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0677/0849/files/information_technology_interview_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7668/0869/files/52666722000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4936/1314/files/54271623491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/2844/3299/files/newmar_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6961/8841/files/78298225078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mozesuseb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6720/9893/files/54561927873.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 6

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_off0000707e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x707E 5052 bytes
SHA-256: 7784aba1eeb2d508cc56fa4a87ff4bf89aef6aae2f10d72247288ae5cca3f7e3
font_01_sfnt_off000081b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81B3 13628 bytes
SHA-256: d6eb9da2a4bb446ee84bf6a227cc727c67e70c61cbc59c8e9c2dc355f4372bd2

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