Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5bef325b109b494…

MALICIOUS

PDF

41.1 KB Created: 2020-09-18 22:21:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 536a55e2b749c57a9a92748eb03d1b0c SHA-1: e97b9320bd804fedf3363f00f2cb2e64c1f7e0e9 SHA-256: a5bef325b109b494444efffcba9bc93d0d942b80934e1859e2502fa8e1fd79f3
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to 'ttraff.club', a known malicious redirector. This redirector is likely intended to lure the user into clicking a link related to 'color syntax discord', potentially leading to a phishing or malware download site. The PDF structure and the presence of numerous links suggest a link farm or SEO poisoning tactic to distribute malicious content.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.club/wix?keyword=color+syntax+discord In PDF document text
    • http://wavivaza.martinisdigz.com/uploads/1/3/1/4/131408022/3796390.pdfIn PDF document text
    • http://files.citizensmedicare.org/uploads/1/3/1/4/131406365/bujidepege.pdfIn PDF document text
    • http://pawixal.fcoca.org.uk/uploads/1/3/2/6/132695615/34ea6e.pdfIn PDF document text
    • http://files.edgeprogram.info/uploads/1/3/1/3/131398059/fegaji-muvaduni.pdfIn PDF document text
    • http://files.sistersinlaws.com/uploads/1/3/0/8/130874058/nepokaxinezavepuzej.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/1/0437/9734/8514/files/75869797308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9201/6280/files/32259266928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9967/5041/files/70678528703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5491/5993/files/26582731365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5879/7471/files/persona_5_books_for_guts.pdfIn PDF document text
    • https://7a7a20ed-22a7-45a4-a7bd-fc1381f8b313.filesusr.com/ugd/b90ba1_c0798f609c324eceb861551224f2de87.pdf?index=trueIn PDF document text
    • https://ef978207-2d8b-41bd-a2d4-0d63871f1614.filesusr.com/ugd/bdc04d_a172115147234f32a081c334b48b489b.pdf?index=trueIn PDF document text
    • https://7995ec9b-a226-4fef-a2cf-322a27bcd744.filesusr.com/ugd/d90490_c7266d7e0b8841cc8cf8d67ec89dbdca.pdf?index=trueIn PDF document text
    • https://a0d41b53-50f1-4263-b376-8672ebd81a68.filesusr.com/ugd/d61b30_ab17be474a214cc5a54171fa504adeca.pdf?index=trueIn PDF document text
    • https://52260359-f1cd-4800-b07e-bb79cf650145.filesusr.com/ugd/c4dbd3_2d1e8d53828042d39c6b4e9e5405b6e4.pdf?index=trueIn 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F7 5008 bytes
SHA-256: 4de296c714142971dbc6415eb357d34396c2381e84783b1b9f129387481176e9
font_01_sfnt_off00007514.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7514 10072 bytes
SHA-256: e18271a0c6d136a9626e1528bf621e4bac30bc8f3437918c10b5fcc9c0eba9df