Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed20e73d9b6c0c86…

MALICIOUS

PDF

82.3 KB Created: 2021-03-18 05:53:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: ee417f433098f643e23157d9a5ad1984 SHA-1: 285a1828e305394162b2d616e7b65b1791cdf3f9 SHA-256: ed20e73d9b6c0c86b0ce24bffb4236559252259222af476122574d3025709fa3
126 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a link farm on disposable hosting, with a high ML score and ClamAV detection for a phishing trojan. The embedded URL points to a domain that appears to be part of a phishing campaign, masquerading as a catalogue download. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://maypoin.ru/award?keyword=berger+colour+catalogue+pdf+download PDF link annotation
    • http://rikororasikenek.iblogger.org/android_version_7._0_frp_bypass_apk.pdfIn PDF document text
    • http://zujadise.scienceontheweb.net/how_to_become_a_fluent_english_speaker.pdfIn PDF document text
    • http://juxowupekabaf.mygamesonline.org/solid_slab_bridge_design_example.pdfIn PDF document text
    • http://vipodesin.22web.org/tunowulavotisekos.pdfIn PDF document text
    • http://prechambre.xyz/how_to_diagnosis_borderline_personality_disorderj9aj1.pdfIn PDF document text
    • http://joxezorov.mywebcommunity.org/fungsi_organel_sel_hewan.pdfIn PDF document text
    • http://tigafik.mygamesonline.org/pete_the_cat_rocking_in_my_school_shoes_audiobook.pdfIn PDF document text
    • http://zamirelerubonex.iblogger.org/17998703850.pdfIn PDF document text
    • http://wevoselaxoto.66ghz.com/21734577344.pdfIn PDF document text
    • http://lasleymarkt.ru/405438872965j1li.pdfIn PDF document text
    • http://rubisteq.online/heroic_magic_duel_apk_download7lt5x.pdfIn PDF document text
    • http://bodaweziwov.mypressonline.com/2012_jeep_grand_cherokee_srt_recalls.pdfIn PDF document text
    • http://tawaguf.scienceontheweb.net/body_parts_vocabulary_exercises.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vizawog.epizy.com/24436054087.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ccb3d02-9503-49b7-a0d3-03fcd4e4f3c2/lukukurimirum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/196ee56c-3168-4783-b6b3-108369f9f41e/xozijidanamesujok.pdfIn PDF document text
    • http://gurabagoderes.atwebpages.com/company_introduction_letter_format.pdfIn PDF document text
    • http://dezobod.onlinewebshop.net/agri_books.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ffea158-46cd-4f86-9862-b7e2c94113e1/who_owns_shark_vacuum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1ea5a77-71bf-482c-a77c-2c591ebe37b1/agile_methodology_scrum_roles.pdfIn PDF document text
    • http://vegexiwijije.rf.gd/sipupusujer.pdfIn PDF document text
    • http://vuruwabudakase.epizy.com/chiang_kai_shek_college_uniform.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_off0001046d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1046D 5284 bytes
SHA-256: bda3ef9d78db22e2eaca39aa851033f8aaa6c2760b9ac3572514fe94579a3b58
font_01_sfnt_off00011690.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11690 11052 bytes
SHA-256: c31a301e69fbcdd62d5157e11b22a3acef2f211631c2feade6396a427c03958d

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