Malicious PDF — malware analysis report

Static analysis result for SHA-256 b32f8cb5ad09ede2…

MALICIOUS

PDF

37.8 KB Created: 2020-09-16 13:56:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0195ced2c34e89742a83fd73e4bd05c8 SHA-1: 449d5afc49440db1237452f4f5a4888866c4123d SHA-256: b32f8cb5ad09ede221bf0c7ef8ed50e92021b68e60127c724ca19e3cc7ed4d67
184 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.link/wix?keyword=chistes+no+es+lo+mismo+ordinarios'. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded links pointing to external PDF files, suggesting a coordinated effort to distribute malicious content. The ML classifier also strongly indicated maliciousness. The document body, though partially corrupted, contains the same joke-related lure and the malicious URL, reinforcing the social engineering aspect.

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.link/wix?keyword=chistes+no+es+lo+mismo+ordinarios In PDF document text
    • http://files.drawalkirisrobles.com/uploads/1/3/0/7/130775373/7052645.pdfIn PDF document text
    • http://zodafa.archirayled.com/uploads/1/3/2/6/132695550/sewizajalodiv.pdfIn PDF document text
    • http://files.wwwlc21.com/uploads/1/3/0/7/130776368/6ffef5ed5900402.pdfIn PDF document text
    • http://xekid.milestonememoriesandevents.com/uploads/1/3/0/8/130814297/rinamupamarim_rafezisegoxev.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://6dc21e1d-8582-41ee-a6f9-c71b0899613c.filesusr.com/ugd/2994dd_1b875335da634709a43d17a81becfb4b.pdf?index=trueIn PDF document text
    • https://61c1fe8e-984a-4a87-b6d2-d28da0e012d1.filesusr.com/ugd/33ab24_a6b09c148c2a4f46bfb89e784b9e99ea.pdf?index=trueIn PDF document text
    • https://67fbdadd-ee3e-4001-8f74-41f8f58ae3c4.filesusr.com/ugd/76aeb6_dcd6aa3ec6404cf7841238ef93e5b9b6.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6734/1974/files/40987113481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8592/2466/files/3356471341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/1029/3669/files/tabojozepamavepixajil.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_off00005514.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5514 4972 bytes
SHA-256: bc6b51ce7aa406fd81c82c62d9e75ae2af3baaf580f9f617cc9491b5bec19738
font_01_sfnt_off000065c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65C1 10848 bytes
SHA-256: 77284bffd2f020ceae7f724bc529d5faddb0e87ecc5333ce3f68975737502fcf

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