Malicious PDF — malware analysis report

Static analysis result for SHA-256 be59e89173f62d5b…

MALICIOUS

PDF

74.8 KB Created: 2021-01-03 21:31:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: ee26e6754d0fe27189b65a4667bcf110 SHA-1: 7b6214b9b34b43d8fd30918b3e8e06521c7d6b1f SHA-256: be59e89173f62d5ba2bd96a807d07cba4b45c26990722fd5d77f064cedc91f6d
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, with several pointing to known malicious redirectors and link farms. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or SEO spam. No scripts were extracted, but the embedded links are the primary attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 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.
  • 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://traffking.ru/123?utm_term=brave+new+world+sparknotes+chapter+4 In PDF document text
    • https://suvojenedixu.weebly.com/uploads/1/3/4/3/134354738/sakimojizet.pdfIn PDF document text
    • https://vujuzujotug.weebly.com/uploads/1/3/4/4/134478410/2595774.pdfIn PDF document text
    • https://misamizejip.weebly.com/uploads/1/3/4/3/134348089/nelogulivoriwujizas.pdfIn PDF document text
    • https://luwinititik.weebly.com/uploads/1/3/4/5/134587042/vupisipupevivegutu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374537/normal_5fc334c398b9c.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/f63c002e-f2f2-4f36-9506-89054a05b56d/99785379162.pdfIn PDF document text
    • https://s3.amazonaws.com/rikolesafuwofar/66376844009.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2294d828-5127-46ab-b22d-cfdaa0cc0f49/73243142166.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3492634-a568-4c66-bc42-bb0f6e69a938/40788314768.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49b3ab09-1bc8-4b4c-90a1-072e6f9e0c0c/foxevipo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc2b94b7-bcf6-4f0e-83fb-86d95866bc61/ziniduripis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d051c36-0106-4278-b41d-ed2e826a2a3d/realtek_semiconductor_corp.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_off0000ea90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA90 5516 bytes
SHA-256: f22155497596ca46cefc67bb0b46e3768f7639868dd6d3d4d8f401c604d44abf
font_01_sfnt_off0000fd66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD66 9688 bytes
SHA-256: 5503ffc437dd41e6e3ef4af5067e34f964bf98cc9d35e56604d290c27ca10055

Open this report in the interactive analyzer, or submit your own file for analysis.