Malicious PDF — malware analysis report

Static analysis result for SHA-256 7820cf8fb00b3206…

MALICIOUS

PDF

67.1 KB Created: 2020-12-18 12:39:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 4ed61edbca8ff5c13a05e6c37ab9b889 SHA-1: 85ac1901ca56dce721d5cb36df5de4ac8bfffd20 SHA-256: 7820cf8fb00b3206d4346b588fb03f0c01ce2d74773b04762aed2d7f5f74f526
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://trafffi.ru/123?utm_term=commonlit+america+and+i+answer+key PDF link annotation
    • https://gimexewevojux.weebly.com/uploads/1/3/4/5/134523505/nubedav_sikaw.pdfIn PDF document text
    • https://xuvarilanagore.weebly.com/uploads/1/3/4/4/134470983/f7eeb7b05d9e.pdfIn PDF document text
    • https://sinuxogutit.weebly.com/uploads/1/3/4/5/134505158/7656012.pdfIn PDF document text
    • https://fogakorix.weebly.com/uploads/1/3/3/9/133997140/a83de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393752/normal_5f98836bed9d9.pdfIn PDF document text
    • https://narogigadi.weebly.com/uploads/1/3/0/8/130874066/detoralubabutusux.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385435/normal_5fb679d4ebeda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390371/normal_5fa067efae6e7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402948/normal_5fc53ce81f9f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413019/normal_5f9abe604f76c.pdfIn PDF document text
    • https://dapevorejux.weebly.com/uploads/1/3/4/6/134695165/218c3e11.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/wixikarago/wellcare_prescription_drug_plan_2020_80840.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc57e843398ff75154ce56f/t/5fc765724f9413233b20d988/1606903155760/rocket_pocket_mouse.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc116c5bdb33045eec368a4/t/5fc222b908845d0924d2b8ec/1606558394720/83262045849.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_off0000ca5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA5C 5248 bytes
SHA-256: 09cc528ed9024674c4fce8ef77f796c2a4977d49b2b04150fa58ddb2405acb75
font_01_sfnt_off0000dc2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC2E 10452 bytes
SHA-256: 55d8285fdf5ae2c9798ec9f0926d74f6a0fad263a6b92f709c19d7c2d3468c5d