Malicious PDF — malware analysis report

Static analysis result for SHA-256 69e0eb892c11e93b…

MALICIOUS

PDF

52.2 KB Created: 2020-10-09 06:55:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 5a0023194a7b8e3140e642ccc3ecda00 SHA-1: 62479dc80a4221b994d99f67c5e8ee822ce73371 SHA-256: 69e0eb892c11e93bf72c2b7bf61af03cd4666e257b71d0819c8ae44182e2e206
132 Risk Score

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 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/pify?keyword=installing+morning+star+bamboo+flooring In PDF document text
    • https://site-1040559.mozfiles.com/files/1040559/jitevodewixunav.pdfIn PDF document text
    • https://site-1037029.mozfiles.com/files/1037029/runamuxajifekarejorovik.pdfIn PDF document text
    • https://site-1036980.mozfiles.com/files/1036980/gebejos.pdfIn PDF document text
    • https://site-1042603.mozfiles.com/files/1042603/65712589474.pdfIn PDF document text
    • https://site-1037228.mozfiles.com/files/1037228/89733143762.pdfIn PDF document text
    • http://files.elizabethandjacob.com/uploads/1/3/1/4/131483361/sukizikikolag.pdfIn PDF document text
    • http://segagiwor.hrcchicago.org/uploads/1/3/0/8/130813985/rowepetageteduvuvoza.pdfIn PDF document text
    • http://files.tarltoncabinetshop.com/uploads/1/3/0/8/130874060/6fb555686.pdfIn PDF document text
    • http://gofog.vilniuscenterapartment.com/uploads/1/3/2/8/132815002/7871587.pdfIn PDF document text
    • http://files.paradives.net/uploads/1/3/0/8/130874652/zedojof.pdfIn PDF document text
    • https://site-1037205.mozfiles.com/files/1037205/1030539226.pdfIn PDF document text
    • https://site-1038618.mozfiles.com/files/1038618/20593889547.pdfIn PDF document text
    • https://site-1037157.mozfiles.com/files/1037157/17915895541.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/9641/1812/files/nadunaxutimemuxonofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9950/3254/files/tipos_de_argumentaciones_con_ejemplos.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_off00008ef8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EF8 5164 bytes
SHA-256: 6ac77ecc896aeed428944066e5d163241bee5d007bcc8d9a73ac7f1907004e0c
font_01_sfnt_off0000a073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA073 10240 bytes
SHA-256: f3d520f67eaa5e394159d1a361cee531722e9282e044fdd7d84061d444efbc93