Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbaded0be1e29d4b…

MALICIOUS

PDF

83.9 KB Created: 2021-03-07 23:53:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 006f3b1db3d3a7982ef17beb1eb7b082 SHA-1: 62b1cf8675c75a3cf6f119d7b066c8132c97026a SHA-256: bbaded0be1e29d4b626ead599b67785fcbc8a3e5401667f86a5aaf103a036cb1
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

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://lozipotod.ru/strik?utm_term=logic+pro+x+tutorial+free PDF link annotation
    • http://walkover.me/survival_simulator_mod_money_apkn0jo1.pdfIn PDF document text
    • http://jsexj.fun/how_to_bring_wealth_in_your_life03upi.pdfIn PDF document text
    • http://esplus.pro/ladejiyctsj.pdfIn PDF document text
    • http://idealsit.fun/furugupetitazimukolsrue9.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/9d090277-0a74-42ae-8cc4-d7ce8ee4c7a4/nursing_research_generating_and_assessing_evidence_for_nursing_practice_download.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/dupov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3e0bbfe-140d-4dcb-a25f-ff8cdf5c2e9d/72074954271.pdfIn PDF document text
    • https://s3.amazonaws.com/kozewuposoridil/filmywap_2017_bollywood_movies_bajirao_mastani.pdfIn PDF document text
    • http://luparev.epizy.com/gevinetirinimok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a686fa72-1bb8-4573-94ef-a013f59e6d06/craftsman_29cc_edger_blade_replacement.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91811191-c0f3-4569-89af-609cba06ea7c/mazirezawuwi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0a3aa69-0763-41c5-a5d6-676a7629efa9/how_do_i_change_epson_ink_cartridge.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b7e490b-6508-49c4-804f-027f842c5639/36502937908.pdfIn PDF document text
    • http://bezekibep.epizy.com/rarutokasubigodujokugafuw.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/compare_and_order_rational_numbers_practice_worksheet.pdfIn PDF document text
    • http://tefetuzuzip.myartsonline.com/what_poetic_devices_are_used_in_the_poem_man_of_earth.pdfIn PDF document text
    • http://nomulumipal.rf.gd/jilazuwitigomoveruk.pdfIn PDF document text
    • https://s3.amazonaws.com/fewunadupop/6240733490.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b831c549-74b1-4da6-804a-cc9241cde22a/best_free_whiteboard_animation_software_for_pc.pdfIn PDF document text
    • http://jafixomedimun.onlinewebshop.net/86243885456.pdfIn PDF document text
    • http://dobejul.epizy.com/jaratejazokakivegutat.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_off00010ada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ADA 5016 bytes
SHA-256: f2adad9271037abb5adedbf38ac9031224e14ee993c66d40c8bad493cf3ad488
font_01_sfnt_off00011c12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C12 11100 bytes
SHA-256: 534fcbf906b269aea449c17f290ca509bc9d7186f13fc1dc78a689419e0b744a

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