Malicious PDF — malware analysis report

Static analysis result for SHA-256 36a3088378fd5a6a…

MALICIOUS

PDF

158.8 KB Created: 2020-09-18 05:43:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 591390a2688435ba2e7d9f77aa0a5d56 SHA-1: bda0ae71034882475bd472c90c4b8fe9a87a1bb7 SHA-256: 36a3088378fd5a6a8810d3e386b08c979c7fd4ed47e127c06a12302ab665d412
124 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=lincoln+movie+worksheet+answers'. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of multiple embedded URLs further supports the malicious intent of redirecting users to potentially harmful content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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 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=lincoln+movie+worksheet+answers In PDF document text
    • http://files.equipasia.net/uploads/1/3/2/6/132681758/6098381.pdfIn PDF document text
    • http://vapigupi.saintgregorysileby.org/uploads/1/3/1/3/131380934/kotebogisarisaf-folijoma-rojugizaj.pdfIn PDF document text
    • http://jubukexu.gracebecker.org/uploads/1/3/2/6/132683138/3248077.pdfIn PDF document text
    • http://files.juliemidkiff.com/uploads/1/3/1/4/131438142/zilukogunuti.pdfIn PDF document text
    • http://linixobin.theredandwhitepaint.com/uploads/1/3/2/6/132682076/d4bcbc527617.pdfIn PDF document text
    • http://negupamas.torontowellnessgroup.com/uploads/1/3/1/8/131871729/mudedid-boxufomo-banowakar.pdfIn PDF document text
    • http://gukilosi.unicoloursb.com/uploads/1/3/1/8/131857204/guloro.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://4fd1e5d4-abf0-4cdb-aa87-688bf8436434.filesusr.com/ugd/74147a_bcbc9f4ca67d4118b6c1009f25b31047.pdf?index=trueIn PDF document text
    • https://7a1ca5f3-3148-4bdc-959b-14ac6f8954a0.filesusr.com/ugd/6f5f23_72a0c4ef6e83480891f207df7b64e424.pdf?index=trueIn PDF document text
    • https://113fd716-65e4-44ed-bc37-f93eb3109df5.filesusr.com/ugd/accd1f_11a0822b5fa84dfcaff75017bed038eb.pdf?index=trueIn PDF document text
    • https://31ba992c-4c4a-4478-a693-72d1c4d66d0e.filesusr.com/ugd/debbe1_17a31e2e38d3472ba84c9382c3e9a952.pdf?index=trueIn PDF document text
    • https://ded5ad00-91a0-4f47-8025-d9a473a1af4b.filesusr.com/ugd/7ef0dc_e22e252a759f403dbf5d275f29b84baf.pdf?index=trueIn PDF document text
    • https://771d3477-feee-46df-b885-b9799ca1fbe0.filesusr.com/ugd/5438e3_28690fbcf7a04fffb41605db46d2dcb1.pdf?index=trueIn PDF document text
    • https://ca8d2587-8687-4030-a8ba-319bc8c8b476.filesusr.com/ugd/9f06f8_de599f1a8e684a63b6e20706c500a785.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002297d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2297D 4984 bytes
SHA-256: 4b8fcde6a78a5f3f8cd539367361bd6aa964a5254b08e846144207e39d47cbd2
font_01_sfnt_off00023a3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23A3B 10748 bytes
SHA-256: 721cbfea8674dd0328a30dff8ba1b606841cd1b6d9e5218c9258f1c7c472e0f3
font_02_sfnt_off00025ee2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25EE2 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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