Malicious PDF — malware analysis report

Static analysis result for SHA-256 96ac29b569307a7e…

MALICIOUS

PDF

65.3 KB Created: 2020-11-16 23:18:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 4034db208f91fd3b27809c9f5a3d72a7 SHA-1: dfe74e3f5f05e072abd8ae3d688fab4c4ff5b3c2 SHA-256: 96ac29b569307a7e800aa44e192f758ebb16b0760a97790576d67492cece2040
156 Risk Score
Tags
free-cdn-ebook-manual-lure

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://trafffi.ru/123?utm_term=edenpure+gen+4+manual PDF link annotation
    • https://tozupefiga.weebly.com/uploads/1/3/4/2/134265365/xuluvutizaj.pdfIn PDF document text
    • https://kefanizitadibuz.weebly.com/uploads/1/3/4/3/134328212/wasozel_bibij_nelofog.pdfIn PDF document text
    • https://nagifinapu.weebly.com/uploads/1/3/2/6/132696111/zorezibu.pdfIn PDF document text
    • https://ralututoj.weebly.com/uploads/1/3/4/4/134457658/jibidetujawep.pdfIn PDF document text
    • https://pijafajabivigin.weebly.com/uploads/1/3/4/6/134635516/705999.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/tofizo/tennis_101.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/anatomy_for_sculptors_understanding_the_human_figure.pdfIn PDF document text
    • https://s3.amazonaws.com/jezobasit/super_mario_unimaker_2.0_download_zip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5c082ef-c43d-4e5b-97ac-fe03fac852d6/princess_lideta_zera_yacob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed83ffca-3710-4bb2-9ec7-13f4a99f3297/palumexapata.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/febumapasad.pdfIn PDF document text
    • https://s3.amazonaws.com/betimugi/cats_in_the_cradle.pdfIn PDF document text
    • https://s3.amazonaws.com/gebaxovudofe/successful_socialist_countries_in_europe.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/bibeperelumor.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_off0000be38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE38 5148 bytes
SHA-256: 53668cc7fa1297d6e9c36f9bb85f7e6ccc8fdeaaf1b9eb52bf9c01db070dda73
font_01_sfnt_off0000cfac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFAC 11956 bytes
SHA-256: 47b3bdd64f6960ff416adb61f4e246e2faa2c4171cd11e23c960310f24e5f132

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