Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e3fa9b5af57b507…

MALICIOUS

PDF

64.7 KB Created: 2020-12-28 07:50:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 98c84aaaa21c84005482fdd7625b117d SHA-1: 4b54f61d8bbedf1c3c1c2d0138082b6e5a77ff0d SHA-256: 0e3fa9b5af57b507fec64dd1af606456a3bbe179ba3f2adaddd1c3372cb78612
186 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.
  • 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://trafficel.ru/wb?keyword=telecharger%20application%20orange%20money%20senegal PDF link annotation
    • https://muberelikaxisax.weebly.com/uploads/1/3/1/1/131163953/5023714.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478946/normal_5fc1720da75f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455916/normal_5fb72fc4d6e7c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408586/normal_5fe7d5847bcbe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496824/normal_5fbe1cc8bbe72.pdfIn PDF document text
    • https://mekuxiwefajup.weebly.com/uploads/1/3/0/7/130739023/483608.pdfIn PDF document text
    • https://nebijuwako.weebly.com/uploads/1/3/4/3/134376342/godariwexifebopijaj.pdfIn PDF document text
    • https://zuzedunili.weebly.com/uploads/1/3/4/4/134460484/8031478.pdfIn PDF document text
    • https://jamisovuropasag.weebly.com/uploads/1/3/4/3/134396730/regew.pdfIn PDF document text
    • https://labajilawuja.weebly.com/uploads/1/3/1/4/131406369/5775682.pdfIn PDF document text
    • https://bawigadumifop.weebly.com/uploads/1/3/4/4/134494387/58df1478.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa5c1a8a-e33a-4776-a8ce-df89a74fc9b4/johnny_tremain_online_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39f762f0-dd01-451a-91c6-f2d51486d1b1/gudaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a05b0b9-74fc-47d9-bdc0-db5b86f6adeb/hour_of_code_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ace20865-da0e-4c08-bba0-93f746f05bb8/35731264298.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000be87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE87 5400 bytes
SHA-256: 4bab3a90dde819a79ce2dfaf21f90e168f600e73194e083edcc1510dc5f149f0
font_01_sfnt_off0000d0c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0C1 10916 bytes
SHA-256: 3cad5217a94fe6f3c0d2b0e783fdcbd50909d25066a335dd0ac5046d68946e6c

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