Malicious PDF — malware analysis report

Static analysis result for SHA-256 2db48a83f2b9c1dc…

MALICIOUS

PDF

64.5 KB Created: 2020-11-11 07:51:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: fe1a7afcd5d58b2e83a64bcda99e9d7c SHA-1: 243fffb7bb3054d1550163da6be8cfe3580c0d6e SHA-256: 2db48a83f2b9c1dc26d412407ab7e7f6fa3c7fc8bbc94ab947bfd2b950d952a9
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://trafffe.ru/strik?keyword=thanos+2020+president+shirt PDF link annotation
    • https://tovozilulu.weebly.com/uploads/1/3/0/8/130873983/zonezagurig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383451/normal_5faa1038905cb.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://uploads.strikinglycdn.com/files/d1f693a7-9948-4104-aa9d-c5d473ee2f4d/peleselilelutojumuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72eb65c3-198a-48bb-a850-9cc0d1e9d998/sikilasuw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0bb8eced-7cbe-442e-9fe8-745de44f5304/nuxaz.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/cantonese_phrases.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8bf6db1c-1407-4100-bd5d-3a61cd0ed02b/welawowogevovedokurafiwi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e26c6fd-e5f4-4fd5-9afe-09cad4e5ebd0/purolator_filter_cross_reference.pdfIn PDF document text
    • https://s3.amazonaws.com/pivetuzadujo/lasetuxepi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ed4f07c-5225-4e9b-ae18-0859a8a0c284/96010980137.pdfIn PDF document text
    • https://s3.amazonaws.com/gifojuxaxeva/aw_direct_towing_equipment.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c34fa68-7074-4a40-bdba-4db16588fc5d/godaze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d486fdd1-4331-43fa-83b4-88ce74f53b4f/ecological_footprint_worksheet_answers.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

Related samples 2

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_off0000afde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFDE 5028 bytes
SHA-256: 11958d312a62d7c51a73215226b8f506c277a208a2cd767606f1e57602c44756
font_01_sfnt_off0000c0da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0DA 10768 bytes
SHA-256: 1c275309b8a2e7aa025e1c3f27c7d92251550ce9acbae8cd7402617acfdc7b35
font_02_sfnt_off0000e5b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5B2 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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