Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab9520846369141a…

MALICIOUS

PDF

57.7 KB Created: 2020-11-14 02:49:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 7e8d6542a9c80fcac71b287bae27381e SHA-1: b9f456b93d5b98be4d71533efbbb3dc2212758e9 SHA-256: ab9520846369141a267b1b8247bebfbc9cf7effca2d59fca33f39f9a36888631
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous external links, with a significant number pointing to link farms hosted on Weebly and other platforms, indicating a phishing or SEO poisoning attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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://traffine.ru/123?utm_term=world+politics+trend+and+transformation+pdf PDF link annotation
    • https://wozuwonasanava.weebly.com/uploads/1/3/1/4/131483955/4064779974fde6.pdfIn PDF document text
    • https://ruwalabipuges.weebly.com/uploads/1/3/4/4/134465281/9106106.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/kasodopizafazakoxuk.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/2d3fbf7e-4812-42dd-bc90-64b24f10c80a/nizodorumafoxedanutuwilem.pdfIn PDF document text
    • https://s3.amazonaws.com/jofunozuzof/beginning_reading_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/la_noire_guide_xbox_one.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdc68c5f-614f-40a8-8d21-c9a992a87f1c/expression_pour_dire_bonjour.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c7c49db-ed13-43ae-9b03-5763431065e2/98767306122.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a2c8c54-f0c1-4ce5-ac14-8edea2c4de35/comprehensive_pharmacy_review_for_naplex_practice_exams_cases_and_test_prep.pdfIn PDF document text
    • https://s3.amazonaws.com/kesumasaka/86445733092.pdfIn PDF document text
    • https://s3.amazonaws.com/jolunenafobuw/te_amo_poema_de_pablo_neruda.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_off0000a7d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7D1 5312 bytes
SHA-256: 8588012365e90a0bc941f15220ca01c91e5ac62b93b5d14c0604b1ada3a0ca47
font_01_sfnt_off0000b9d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9D9 9540 bytes
SHA-256: 0799d3dee5b95710d39d10786999b26cfd2d0dae79f4ea858e4120c0bf1371da

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