Malicious PDF — malware analysis report

Static analysis result for SHA-256 18e9706931325ffc…

MALICIOUS

PDF

76.6 KB Created: 2021-03-01 20:45:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 8f89d56eff48961f8fad01556b6b1435 SHA-1: 35740f7211a3126d27ef9676a03e571d8f5321ae SHA-256: 18e9706931325ffc93411c3babb2c14e387adef5fde0705b63d24f757d86268d
156 Risk Score

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-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://druttle.ru/strik?utm_term=the+night+manager+episode+1+cast PDF link annotation
    • http://mosebuzixat.mywebcommunity.org/transformational_leadership_in_nursing_journal_articles.pdfIn PDF document text
    • https://niwanuve.weebly.com/uploads/1/3/1/4/131406473/3cd68bb2b4c9e97.pdfIn PDF document text
    • https://gikesusemu.weebly.com/uploads/1/3/4/7/134775173/407414a109b.pdfIn PDF document text
    • https://reropazorulofo.weebly.com/uploads/1/3/4/4/134437501/2073827.pdfIn PDF document text
    • https://dajidavibaral.weebly.com/uploads/1/3/4/6/134606929/kewedaxovijuvotozo.pdfIn PDF document text
    • https://cdn.sqhk.co/naziwixolagu/nhager4/ultimate_offroad_simulator_mod_apk_free_download.pdfIn PDF document text
    • http://momarivido.mypressonline.com/56812107512.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/deadlift_form_gif.pdfIn PDF document text
    • http://lojabupabavize.onlinewebshop.net/49023600547.pdfIn PDF document text
    • https://s3.amazonaws.com/wupiwupiwot/internal_audit_training_courses_in_philippines.pdfIn PDF document text
    • https://s3.amazonaws.com/musoxifuvitalo/gilenawisububivafede.pdfIn PDF document text
    • http://tanozetodane.rf.gd/5895517292.pdfIn PDF document text
    • https://s3.amazonaws.com/bexolamabad/fictional_detectives_word_search_answers.pdfIn PDF document text
    • http://mofububozej.rf.gd/38218074850.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/publication_15_employer_s_tax_guide_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/bomifabipi/swann_wifi_doorbell_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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE1C 5456 bytes
SHA-256: 2c41b40d1afa7a8402ca30b620faacd9f3cef2179aa46e69c1b55e2943615c8a
font_01_sfnt_off0001007d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1007D 10656 bytes
SHA-256: 160745374906b7cbdc6645594abd0bd5d3d7fefedcdb39d60dc73cf0a2fc21c8

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