Malicious PDF — malware analysis report

Static analysis result for SHA-256 84256ef0996469f9…

MALICIOUS

PDF

42.2 KB Created: 2020-09-22 07:44:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bf541f0bfe99fbd744581027b224fb95 SHA-1: 777a6c1e661ce7dd687f86c549faa650c7cad9e5 SHA-256: 84256ef0996469f9ff523d85c473f43cd1cea31409600bc401f494e44442c4b3
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded URLs, functioning as a link farm. One of these URLs, 'https://ttraff.club/wix?keyword=packet+tracer+3.2.4.6', is identified as a known malicious redirector. The document's structure and the presence of numerous links suggest an attempt to lure users to malicious or potentially harmful content, likely as part of a phishing or malware distribution scheme.

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=packet+tracer+3.2.4.6 In PDF document text
    • http://files.3925robotics.com/uploads/1/3/1/6/131637529/pijepup-gerupol-jojoj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://f1ad45f8-3ecc-4f65-a1c6-d0bbd9a6863a.filesusr.com/ugd/6e13d9_c55d23b7cc3146b98904702a108f317a.pdf?index=trueIn PDF document text
    • https://0d3ddc2d-af64-4f28-9910-db7314807cff.filesusr.com/ugd/e2f197_45c81b6c23d14b759a37696492da5ace.pdf?index=trueIn PDF document text
    • https://ab3717dd-1f9f-4d76-950a-b58c4cd7528d.filesusr.com/ugd/f1c748_6435165719f445558bef47fdb1ed9af0.pdf?index=trueIn PDF document text
    • https://0bdc4092-0a44-44e6-a881-c5fa230e4603.filesusr.com/ugd/55cc32_dd030090e1ef439796caaab11b1fccbc.pdf?index=trueIn PDF document text
    • https://774e6e6c-8743-46a0-bd14-33c532be6317.filesusr.com/ugd/1df9ea_efcb780d1ca04f2a991df27728b7c013.pdf?index=trueIn PDF document text
    • https://d6f8aefc-0683-4d90-8963-cd2d06a7b1e1.filesusr.com/ugd/a4c1fa_8cf624e21eb94150b9a0498263a08e88.pdf?index=trueIn PDF document text
    • https://b3589177-20c0-4595-b0a8-86d391053876.filesusr.com/ugd/e33828_017ffde20f9c4b668a0a5d8b86badf8f.pdf?index=trueIn PDF document text
    • https://060e53a4-8abf-45a7-9a48-0eb50cd84bff.filesusr.com/ugd/c79b1c_d5a7f155e5894a7c9ed19a8ae08771ca.pdf?index=trueIn PDF document text
    • https://5b06bda6-7b71-4d05-97eb-4a06927e6b0b.filesusr.com/ugd/fb83f1_9060e9a4689549bd9e1f3844c5805f81.pdf?index=trueIn PDF document text
    • https://138dcd67-06de-4fdb-b152-ef481d95e0d6.filesusr.com/ugd/f80014_5af6887a4a944994a195dabaf31524c7.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

Related samples 2

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_off0000689e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x689E 5216 bytes
SHA-256: b23613dccd0c7f7ca0479898f9ba854691dc56628ca71fcb7e2e65a5f1e6dfc9
font_01_sfnt_off00007a7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A7C 10044 bytes
SHA-256: e258ef4bac7e62627bc0734fc50b29572cb18040ece2e153b36f535a939ea1f1

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