Malicious PDF — malware analysis report

Static analysis result for SHA-256 d747d16030d568d2…

MALICIOUS

PDF

69.4 KB Created: 2020-12-19 01:01:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: a507fe0fc727ee8a350c6c7f54976d4a SHA-1: 9b4fdda0de1641ce6687da4f753ab2a90a40d53d SHA-256: d747d16030d568d222de7d67631b97852237c483f3d89815d3265ac45a081d12
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://trafftec.ru/strik?utm_term=jc+road+bike+shop PDF link annotation
    • https://bizitodavil.weebly.com/uploads/1/3/4/3/134321392/cc1b68.pdfIn PDF document text
    • https://kaledawuvilef.weebly.com/uploads/1/3/4/7/134727412/tomor.pdfIn PDF document text
    • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/gewizojule.pdfIn PDF document text
    • https://bafizotadax.weebly.com/uploads/1/3/4/7/134761596/puzaxoluz_debinifatokidi_nukuvekusipa.pdfIn PDF document text
    • https://polabobaxadujo.weebly.com/uploads/1/3/4/7/134775235/xidos-bomosepe-woneri-jepavudavagu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc3aed99955c744b54ce5b8/t/5fc46f21a97599144e86c68e/1606709026215/gibizalavez.pdfIn PDF document text
    • https://s3.amazonaws.com/dudigonifu/vadezutuvezanikas.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4ffd688c99b6d37c18e02/t/5fc6a96208845d092476efca/1606855010426/98842531690.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0676899e-d2ab-4c02-b2b2-5577b1772a76/27941694861.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83381f33-f2b1-417a-8900-afe424c25c71/determinar_la_fuerza_presente_en_cada_elemento_de_la_armadura.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/54580886706.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/718a0bd8-1e54-48f0-8f6d-5bcaba266c6d/bowuwizipulalapakije.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7b138cb936d6a06ab0ce6/t/5fd68a0d72b1137fa97c667d/1607895565131/nipupigujerasato.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f2f6c89e1c4b8fbea157/t/5fc1480c08845d0924b9ada9/1606502412628/mapping_trophy_bucks_book_review.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_off0000d2d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2D3 5320 bytes
SHA-256: ca10793c91c7771c501a1475e68b4d3d1f811c5d9837531795446996c1afbb37
font_01_sfnt_off0000e4d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D9 10564 bytes
SHA-256: 4a52705449645f221949f3a43d048b41534331b55bf8da92e1b747a9d1a3a1bd

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