Malicious PDF — malware analysis report

Static analysis result for SHA-256 6deaacfd119b89e6…

MALICIOUS

PDF

77.2 KB Created: 2020-11-21 11:50:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 6bbb21d0042a5eaaa6d529c4626fd9cf SHA-1: 785d4835732de6c4b958db0a6a03da8bfc5299bb SHA-256: 6deaacfd119b89e6af114ab479598d31ed1eab06cfaa66a21b595f31782e6f47
156 Risk Score

Malware Insights

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

This PDF was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. It contains numerous external links, with one pointing to 'traffnew.ru', suggesting a phishing or malicious redirection attempt. The PDF structure also indicates a link farm, likely for SEO poisoning or distributing further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://traffnew.ru/aws?utm_term=bhojpuri+bhakti+bhajan+song PDF link annotation
    • https://zosubidam.weebly.com/uploads/1/3/4/3/134316114/zuxaji-vexeduxapaxub-xebonofojo.pdfIn PDF document text
    • https://zilowefid.weebly.com/uploads/1/3/4/5/134510497/61bcd667682.pdfIn PDF document text
    • https://vuvofazomegudej.weebly.com/uploads/1/3/4/3/134329778/bepisexifelelopotod.pdfIn PDF document text
    • https://nojarotawufa.weebly.com/uploads/1/3/4/3/134313922/pepodekiwu_peteleguxilipop_japavonumevumew_kipojulos.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/voxazedisula/danizeborori.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9066ab7d-838e-4dd4-be3f-2ce71e21ac23/7073423023.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0ccea21-2f34-4144-87ce-66a85f34a1dd/livigete.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/746a3956-e40a-49d3-b768-0644a2c8ddd8/throne_of_glass_heir_of_fire.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/4579969678.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37ac9c3b-bf2c-42b7-bfe4-83f8d3073193/bogotaxus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/955c1524-7508-403b-81a4-c86083dbd91b/vafurarorifigeb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c09142e-f6d8-4e9e-9144-e3b8a02453ae/xovanurop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f4efc66-ff4b-4153-bcf7-cfbec65f4cc3/18272597509.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98f68fb5-07bf-41a5-861a-ad70bf23f478/kotabujulijilejasabenexet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86da2245-4531-464d-b99c-c1ff701704dc/wolowureru.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_off0000f0cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0CC 5376 bytes
SHA-256: 6747d222bd406fa688fb46c6db3ba91a83f863fc23805c8e6e740cb092dd6fd8
font_01_sfnt_off00010318.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10318 10852 bytes
SHA-256: bc7b9b607ae74db7604d497f190364ddc5f5837ee88adf130c7adbbe0fc56fe3