Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ece1b00801ecf10…

MALICIOUS

PDF

75.3 KB Created: 2021-03-11 04:32:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: c6f7b57976d6307f296a255c7f17df35 SHA-1: f4532f778d120a965e2833491b919f219d2c5598 SHA-256: 6ece1b00801ecf10b9c2955587796f6b2893949b8078b4e3f7adfe2ad8df08dd
126 Risk Score

Malware Insights

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

This PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to disposable domains and link farms, indicating a strong intent to redirect users to potentially harmful content. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://xajibur.ru/strik?utm_term=famous+fishbowl+quotes PDF link annotation
    • http://amsidgi.xyz/borobedogaxbwqa.pdfIn PDF document text
    • http://damvglaz6.xyz/what_makes_byzantine_art_uniqueekidv.pdfIn PDF document text
    • http://femusawar.iblogger.org/pezifelunasefuzuj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443576/normal_5ffeba716a52f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382423/normal_602dd3ce600de.pdfIn PDF document text
    • http://vizimuvorogo.22web.org/zijorenasaxivi.pdfIn PDF document text
    • http://gratoraama.space/bexuziwwsoz9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420432/normal_600b51f84c9fa.pdfIn PDF document text
    • http://neviresutuv.iblogger.org/72820233627.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479226/normal_603e2ab772b02.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf586c12-a206-42c9-9b52-d40c77ed6750/pefoxugobiza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db39e903-0d9d-4e8e-8632-db0aecf87680/how_to_influence_others_and_make_friends.pdfIn PDF document text
    • https://91953a53-6f32-4f2a-9b2e-0f954541ff31.filesusr.com/ugd/dad90e_84d0f46e2606405b9d8d4224b513c92e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd127274-b6ec-46eb-8e29-d81a5b951d66/what_is_the_purpose_of_a_sensory_neuron.pdfIn PDF document text
    • http://kagufunoziwezu.epizy.com/fusionner_images_en_logiciel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae43e6f3-0b86-4236-baab-d0ff26773ea6/74771154425.pdfIn PDF document text
    • https://45ed8376-e832-497f-ab20-0a31924dc5db.filesusr.com/ugd/4b7290_4e06167e68f54ca1be0bb7afd9e3976e.pdf?index=trueIn PDF document text
    • https://33c7e2ec-32fc-4676-a642-9d95a4379e01.filesusr.com/ugd/622218_b914e8fa83754773840274209d2970ba.pdf?index=trueIn PDF document text
    • https://c245485c-e1a4-4c5a-9a2a-c465a95e53c8.filesusr.com/ugd/25f824_ad4c9cb083e04d3e9fd548a37b03da67.pdf?index=trueIn PDF document text
    • https://e46eb8ae-11b5-47af-91b5-79e2db369635.filesusr.com/ugd/f84671_2dcb4531dcc241ef9ed5cb666ec8ec85.pdf?index=trueIn 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_off0000eb5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB5A 5224 bytes
SHA-256: d2b8ccbaa0c28b35004436d7a6398adf970714181a368d95e0ef69365219115b
font_01_sfnt_off0000fd19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD19 10392 bytes
SHA-256: 376d8e8820199f5dcb72c67df7741aae8be6f4fb55c696358ce98eca1055cff1

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