Malicious PDF — malware analysis report

Static analysis result for SHA-256 476fa3292e03df5f…

MALICIOUS

PDF

46.3 KB Created: 2020-11-02 16:51:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 6eb5e8e429d43e6a42a42bb360ff9d5c SHA-1: 8d999608184d6c1b077c6fb8b4810b1406712920 SHA-256: 476fa3292e03df5fe352e63833cc945edd618690fc7412a97e7d36ee7b4a9817
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links to known malicious redirector infrastructure, specifically pointing to 'ttraff.com'. The document body, though partially corrupted, includes the URL 'https://ttraff.com/123?keyword=definition+of+shot+on+goal', suggesting a lure to a malicious site. The presence of multiple Weebly-hosted PDF links further indicates a link farm designed to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/123?keyword=definition+of+shot+on+goal In PDF document text
    • https://mejefarekobuk.weebly.com/uploads/1/3/4/3/134338461/3844320.pdfIn PDF document text
    • https://vurazomuloja.weebly.com/uploads/1/3/4/3/134322302/senokosuvu.pdfIn PDF document text
    • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/xakozaduv_vuvowi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408712/normal_5f9f7e3ccda77.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/zakeme.pdfIn PDF document text
    • https://tagepixibupiz.weebly.com/uploads/1/3/4/5/134586800/metefuvalig_xelukepan_pusafame.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://s3.amazonaws.com/buganabowumujef/business_process_reengineering_proposal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8596/1632/files/waxabibolofaludukojikukeb.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/12882952190.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee45ce67-adea-477e-9cd5-c894aed68f6b/24422113191.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/xexutoran.pdfIn PDF document text
    • https://s3.amazonaws.com/banijugoniragom/true_to_the_game_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/3007/6318/files/how_to_tame_animals_in_minecraft_pocket_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/collect_stone_from_a_fork_knife_or_umbrella_gattu.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000690c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x690C 4720 bytes
SHA-256: bf604f5ffc33cae2c5744c4c2ad888f3ba3c5fc55294c54f67688baae9b82396
font_01_sfnt_off0000791a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x791A 10928 bytes
SHA-256: 4127ef26c3ea681a0b7d00581a0e7e9e561fa9d3996fc976c45777b97bccb32f
font_02_sfnt_off00009e03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E03 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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