Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0d7c3d45b9f9914…

MALICIOUS

PDF

72.9 KB Created: 2021-02-26 04:28:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 719f9407365929a37994cae981cd6c6f SHA-1: 5dfcc12b6d7477bc44ed02f5c0f1606bc029a1c5 SHA-256: f0d7c3d45b9f99140dd992617967d2f8089c56167806ff3a07d7e4f26c97e995
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://jacksth.ru/award?keyword=define+the+concept+of+programmed+decision PDF link annotation
    • http://fewizoge.22web.org/food_brochure_templates_psd_free.pdfIn PDF document text
    • https://rezolokad.weebly.com/uploads/1/3/4/7/134718373/482b24ebfd.pdfIn PDF document text
    • https://cdn.sqhk.co/vikoparif/Wjfgigg/87195273807.pdfIn PDF document text
    • https://tedajurilazunu.weebly.com/uploads/1/3/0/7/130739962/7297147.pdfIn PDF document text
    • https://mitivowa.weebly.com/uploads/1/3/1/6/131607237/913a81bb.pdfIn PDF document text
    • https://cdn.sqhk.co/tifapoxur/LqWibgc/gsmarena_samsung_a71_vs_m51.pdfIn PDF document text
    • https://miremewokar.weebly.com/uploads/1/3/0/7/130738658/9217464.pdfIn PDF document text
    • http://gomuleg.22web.org/holiday_office_party_flyer_template_free.pdfIn PDF document text
    • https://xifalazixaxidig.weebly.com/uploads/1/3/0/8/130874217/vumigijibixo.pdfIn PDF document text
    • https://cdn.sqhk.co/pabopimi/i5ifWjd/download_castle_defense_2_mod_apk_revdl.pdfIn PDF document text
    • https://girakojazesu.weebly.com/uploads/1/3/4/6/134675992/210146.pdfIn PDF document text
    • https://cdn.sqhk.co/lebogomatoze/j33jbge/leatherman_wingman_review.pdfIn PDF document text
    • https://cdn.sqhk.co/pofaxiniraz/yiaejif/16732982315.pdfIn PDF document text
    • https://garowowo.weebly.com/uploads/1/3/6/0/136033653/fozoberatadoremoja.pdfIn PDF document text
    • https://cdn.sqhk.co/tipefimex/gfMkgcu/tizipunon.pdfIn PDF document text
    • https://cdn.sqhk.co/keliziniw/jQgjibH/letaf.pdfIn PDF document text
    • https://cdn.sqhk.co/teketerep/Gjbaid4/30157688902.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lamafuravufezin.epizy.com/42554903295.pdfIn PDF document text
    • http://pujumek.myartsonline.com/french_revolution_third_estate_taxes.pdfIn PDF document text
    • http://bewegemoketofa.rf.gd/lufaridazu.pdfIn PDF document text
    • http://zapidijerazavot.epizy.com/bhakti_ringtone_radha_krishna.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_off0000e0d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D0 5536 bytes
SHA-256: f2698bf818e930d41f1c32d709daf734e1c5b0e89a35f50a39d051edbea0f6fb
font_01_sfnt_off0000f381.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF381 10160 bytes
SHA-256: a6d8661648db3b328e7b15bdff85bd23e7a29f8642993c25c54eb1772858fe0c

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