Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7906bcfea58cbbe…

MALICIOUS

PDF

80.6 KB Created: 2021-03-11 16:10:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: e901bc28bf19f2c79eab55abd886ee11 SHA-1: 1dfef36a32f3f6fc6fb9f4ba46a9c3659d2df37d SHA-256: d7906bcfea58cbbebc5d30c21234307f1985fce00bbc3968876cf077a6bf2850
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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://midufefew.ru/123?utm_term=lei+audiencia+de+custodia+pdf PDF link annotation
    • http://jojidasusesot.sportsontheweb.net/define_debit_note.pdfIn PDF document text
    • http://sadipize.scienceontheweb.net/bemosowawekekumo.pdfIn PDF document text
    • http://lebojabufi.medianewsonline.com/tegepofurinarajawexipat.pdfIn PDF document text
    • http://terugate.mypressonline.com/is_ff12_zodiac_age_good.pdfIn PDF document text
    • http://nunovoxiwanafuz.getenjoyment.net/mitel_5312_ip_phone_voicemail_setup.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/22ec4c72-49e2-4d15-852d-4f03ce0da090/how_do_i_setup_my_tp_link_ac1200_wifi_extender.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/tuvegesubovudamev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/480cf4de-921a-4b0f-89ff-1efc5d5270cd/triumph_of_the_moon_new_edition.pdfIn PDF document text
    • http://karezijejot.rf.gd/2008_toyota_sienna_battery_group_size.pdfIn PDF document text
    • http://davivizuvazofa.rf.gd/4904584480.pdfIn PDF document text
    • https://s3.amazonaws.com/samopakamefap/pakistani_cotton_bed_sheets_online.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/vosovodukitaposugedeba.pdfIn PDF document text
    • http://bivojeda.atwebpages.com/47186832778.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/bewamiwejugubowoginubutik.pdfIn PDF document text
    • http://tebaputazaxuva.myartsonline.com/sewuwib.pdfIn PDF document text
    • http://zaninoj.epizy.com/wofepaporene.pdfIn PDF document text
    • http://zepizevut.atwebpages.com/history_of_philosophy_book.pdfIn PDF document text
    • http://fitimulosegi.epizy.com/41519572472.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29d892bc-996a-4fe7-ace3-cd5c784ab30c/87660648304.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba2a0617-800e-46d2-b8a8-932bc72fe2d7/78725505683.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/firefox_49._0._2_offline.pdfIn PDF document text
    • https://s3.amazonaws.com/musokejixami/spanish_learning_files.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_off0000ef77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF77 4844 bytes
SHA-256: 3f2f1cbb9b9fd9e7fafc55cca47d88ff0068c8622cf63f5f796dad3d0108d5a9
font_01_sfnt_off00010002.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10002 11908 bytes
SHA-256: 1cedb11da09ae6d9770ead75fc01e91d6bb950795e90ae9ad5020d55f31df7f2
font_02_sfnt_off000126d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126D4 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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