PDF malware analysis — malicious · d781fc7c64ee9ab7

MALICIOUS

PDF

74.7 KB Created: 2021-02-14 20:28:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13

MD5: 7f936e3c92a2defcbbdca797f64ae354 SHA-1: 55fd48720fe0fe5736872da8b02f105e505fe119 SHA-256: d781fc7c64ee9ab7f64450f8e4e1bc8f03c49ce0f0c5188c62acad7c3fef73d3

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL that masquerades as a search result for 'best manual breast pumps', likely to trick users into visiting a malicious site. ClamAV and ML classifiers strongly indicate maliciousness, and the PDF_URI heuristic confirms the presence of an external URL. No scripts were extracted, but the document structure and URL suggest a phishing or content-luring attack.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://jacksth.ru/wix?keyword=best+manual+breast+pumps PDF link annotation
- http://figojusu.iblogger.org/medonupitejoxezunesapegu.pdfIn PDF document text
- https://cdn.sqhk.co/tezizejaropu/heOGgjX/car_driving_game_download_for_pc.pdfIn PDF document text
- https://cdn.sqhk.co/pujixefan/idjaSTh/kotuzenakuduxogejewilax.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454822/normal_6013663ae392a.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://xikulajofag.epizy.com/dvt_prophylaxis_treatment_guidelines.pdfIn PDF document text
- https://s3.amazonaws.com/fipijife/citation_word_format.pdfIn PDF document text
- https://s3.amazonaws.com/legesiliv/budget_2019-_20_summary.pdfIn PDF document text
- https://s3.amazonaws.com/xapota/amazing_spider_man_2_game_android_requirements.pdfIn PDF document text
- https://s3.amazonaws.com/vawoginele/andrew_scheer_platform_child_tax.pdfIn PDF document text
- http://sinofemuda.rf.gd/ofsted_report_for_heathfield_primary_school_nottingham.pdfIn PDF document text
- http://xubudexev.epizy.com/tasawisixazuwiloredo.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e96d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE96D	5152 bytes
SHA-256: `5dd5df01d76422fa327d540726bea18b75ca516d015eea43835cbb496e32c1df`
`font_01_sfnt_off0000face.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFACE	10288 bytes
SHA-256: `f593bcf5d08a6066a940c4616b833c67d04cd12af2db990a6dec105136f1dbe5`

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