Malicious PDF — malware analysis report

Static analysis result for SHA-256 95b8cbfee3741eeb…

MALICIOUS

PDF

43.1 KB Created: 2020-11-02 07:09:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: b59b5dd0bac0aeaef5afae48b7ae37e3 SHA-1: ddcd64caa252e7656b2508f4820b1d7951aec756 SHA-256: 95b8cbfee3741eeb52115d9705cc918826a008b8709a13355a3404865c631f93
94 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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/123?keyword=unlock+my+tv+apk+for+pc In PDF document text
    • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/vizaxe-zavagotapalevo-wujijodimunimet.pdfIn PDF document text
    • https://riragojefo.weebly.com/uploads/1/3/1/8/131857115/sogamuvuvevupa_vatizavoxo_jeroxovixefujof_nafifuwet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wilugugo/body_dysmorphic_disorder_a_treatment_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/leributafa/ryse_son_of_rome_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wexukufedepim/vocab_workshop_level_b_unit_5_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/3086/2753/files/black_and_decker_oven_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7968/8873/files/husker_spring_game_tickets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5fce439-81f4-444e-8b11-86deefabcf07/fepijemoda.pdfIn PDF document text
    • https://s3.amazonaws.com/tofizo/tennis_101.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/11690309807.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/0427/8935/files/wamujudoxivug.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006abc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ABC 5200 bytes
SHA-256: 9b18432ba311b955fcf871e224c53bdff46495e8b2ddc397cfb91270b54417a9
font_01_sfnt_off00007c72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C72 10564 bytes
SHA-256: 28466b0ece5efa4dcf6a0fc002950b9e2c540f9b950f9a70079ef98e48c83970