Malicious PDF — malware analysis report

Static analysis result for SHA-256 296490b7d1163ebc…

MALICIOUS

PDF

58.2 KB Created: 2020-10-31 04:03:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 344381ec04285dd99912f7e732af657c SHA-1: 57b4dd16efa674018b454226c84ddca01dd1c0e7 SHA-256: 296490b7d1163ebc7285ea92bfa74f9d7a35b0f3e292160b703e373fe5be7741
214 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a credential phishing lure impersonating Amazon, leveraging a redirector infrastructure. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics as a malicious redirector. The presence of numerous external PDF links suggests a link farm or SEO manipulation tactic, potentially to obscure the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://buritovetozew.weebly.com/uploads/1/3/4/4/134486370/kibepeb.pdf.
  • 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://ttraff.link/pify?keyword=what+are+napoleon%2527s+ideas+about+education In PDF document text
    • https://buritovetozew.weebly.com/uploads/1/3/4/4/134486370/kibepeb.pdfIn PDF document text
    • https://lozugukavokukes.weebly.com/uploads/1/3/4/3/134357100/xuxefuguviwu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/7069/1774/files/lorain_county_clerk_of_courts_record_search.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/7315/0359/files/vemedowuxefotixovov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7744/9366/files/xotusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3175/5932/files/datiwolavijuxexixoti.pdfIn PDF document text
    • https://s3.amazonaws.com/taturi/room_sale_agreement_format_in_marathi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f8da701-8e64-47bb-b3ee-b84000fa29c3/paturuwojizenus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/6439/1367/files/skagen_hybrid_watch_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/77153549846.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/download_amazon_web_services_in_action.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_off0000a648.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA648 5348 bytes
SHA-256: 5861971c635dadb399c91b7575ba9c56c4fc19e36e8b82f01c517dd4911f1400
font_01_sfnt_off0000b87e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB87E 10264 bytes
SHA-256: 2d63b9c1d8d86e0fd6e60c4fe04605d735f1e89047e0f0692cc05636973fd32c

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