Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eb7ed2edb1a9425…

MALICIOUS

PDF

72.7 KB Created: 2021-03-10 16:54:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 40d40529932a31bfc56541c040017bb7 SHA-1: cf01c5dd3001409ac3651f44527dd46a7d1fc35f SHA-256: 0eb7ed2edb1a9425061caf03e2fb58514639d9767c942d82b7bb015602a3e6a8
186 Risk Score

Malware Insights

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

The PDF contains numerous external links, identified as a link farm, with one primary URL pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or a scam. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious or deceptive content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://jumiwimov.ru/award?keyword=abdominal+wall+muscles+pdf PDF link annotation
    • https://gepopoxano.weebly.com/uploads/1/3/4/6/134663556/254822615.pdfIn PDF document text
    • http://esportzmlevent.com/merchant_of_venice_summary_free_downloadqj9si.pdfIn PDF document text
    • https://cdn.sqhk.co/nebemina/idigcIW/tebanipupujutapon.pdfIn PDF document text
    • https://cdn.sqhk.co/gixotagokezu/w8iagg1/zapemapakolitojatagojonan.pdfIn PDF document text
    • http://vinograd.io/markup_windows_1041k2i.pdfIn PDF document text
    • https://vuloribogisoso.weebly.com/uploads/1/3/4/6/134655424/nakidije.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/906fd9c5-6640-4081-b893-726ea5998963/votobokab.pdfIn PDF document text
    • https://cc968bdf-8a18-4a65-a72d-893c706ef441.filesusr.com/ugd/bae363_f06fbfe5b1ba42a9b1725b8401b07ec7.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/95f20e7c-6443-4f46-b2a7-ca6c27e15215/28838075814.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b56249db-78d9-431e-b5a0-d22531e4b187/82338611863.pdfIn PDF document text
    • https://5634f520-c25d-421d-ab67-3d94505d13cb.filesusr.com/ugd/1b85ab_99429d51ff7a4a0da906f4342241b69c.pdf?index=trueIn PDF document text
    • https://0d555108-1732-4721-8d72-76d747b2053a.filesusr.com/ugd/1b0481_5818f718f7b04fc28226897bb0b424e2.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa4ca655-4a28-47fc-8edd-46e59be2e117/49194913143.pdfIn PDF document text
    • https://s3.amazonaws.com/dufekifaral/16380230557.pdfIn PDF document text
    • https://ab2ac9d4-4772-4872-829d-c19fde0a4f90.filesusr.com/ugd/b919b3_d9bb6535d020415ba01077e235cfeec7.pdf?index=trueIn PDF document text
    • https://5c71d6b4-13b5-43a2-97a4-9a0eba4d0f4d.filesusr.com/ugd/0f1814_56bba95f630e4f4ab1e6860a0b570c42.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nagudo/31486948397.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/vasupulamosizix.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/long_vowel_sounds_worksheets_for_grade_1.pdfIn PDF document text
    • https://medlineplus.gov/genetics/condition/abdominal-wall-defect/In 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_off0000e018.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE018 5428 bytes
SHA-256: f52f06104b0fed1a598e9dcacc860f8a031ec5f726de4acf2526b3c6e730a65e
font_01_sfnt_off0000f28e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF28E 10240 bytes
SHA-256: 4900ef85594de19eda1ccf31b84b1bfcc8bf8099daebf319c0731071ab740a85

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