Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d894d2045a0bd31…

MALICIOUS

PDF

89.6 KB Created: 2020-11-11 15:24:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: e7cdaeab71dd75f00854e666107df043 SHA-1: 3f6da79cf196ed42351472fafa09c89f2e471c45 SHA-256: 7d894d2045a0bd31698eb137713bb3b28fc20aeaea5d34a30c09eb72d7b75132
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://cctraff.ru/aws?utm_term=coshocton+county+recorder+-+deed+search'. This indicates the document's primary purpose is to redirect users to potentially harmful websites. The ML classifier also strongly flagged this PDF as malicious, supporting the conclusion that it is designed for malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://cctraff.ru/aws?utm_term=coshocton+county+recorder+-+deed+search In PDF document text
    • https://cdn-cms.f-static.net/uploads/4387218/normal_5f8f06110fa13.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/sakaburepagase/pineville_high_school_louisiana_football.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba2dbb67-ecd9-4276-8474-27a518d203e1/dosepido.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/71532703575.pdfIn PDF document text
    • https://s3.amazonaws.com/defujo/rufimurekekuwalupanodu.pdfIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/jenejivumebenugep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b52990a2-2aef-4654-b382-effb321b2a14/field_desks_small.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52952955-0bfe-43be-929b-d031db1025b5/les_fleuves_de_france_cm1_evaluation.pdfIn PDF document text
    • https://s3.amazonaws.com/poresi/94004785053.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/articulos_cientificos_en_ingles.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/57044749822.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/8786596662.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07de3d4b-3b70-435f-adcd-288689625cd3/mimom.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000119af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119AF 2828 bytes
SHA-256: b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a
font_01_sfnt_off000123aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123AA 5032 bytes
SHA-256: 0699b445112259c65cb4a8033f853c7b3fb10a56443f07cbd5882c283dcbca79
font_02_sfnt_off000134c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x134C7 10060 bytes
SHA-256: 751e84affd4cfedd1bf99a19afa49cddb33516fd398bf042cc47957af7c970ed

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