Malicious PDF — malware analysis report

Static analysis result for SHA-256 80e0698022addbce…

MALICIOUS

PDF

148.5 KB Created: 2021-03-30 07:34:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d7964e28ebcc7a3420a0fc2e3f1ea4f9 SHA-1: 1058e34734cd4e213093e2b46b72690948e3d88a SHA-256: 80e0698022addbce29dca6293bc4f9f0eed977e0fb1dfd0d7875183b0deff1b9
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains multiple embedded URLs, with at least one pointing to a domain flagged for phishing and link farming. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing sites or download further malicious content. The document body, though heavily obfuscated, suggests a lure related to 'automation and control technology'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/123?utm_term=automation+and+control+technology+pdf PDF link annotation
    • https://cdn.sqhk.co/mejabutumu/hHjdija/42685566292.pdfIn PDF document text
    • https://cdn.sqhk.co/kisasizaro/jgzoJw0/51715114410.pdfIn PDF document text
    • http://loxuzemifa.iblogger.org/barbie_princess_and_the_pauper_songs.pdfIn PDF document text
    • https://cdn.sqhk.co/xugiwatokax/Wihoghh/incoming_and_outgoing_finance_template.pdfIn PDF document text
    • https://cdn.sqhk.co/titesojijuko/egq0Nhe/clock_calculator_light_bulb_puzzle.pdfIn PDF document text
    • http://ziduruwekomowob.iblogger.org/25306777592.pdfIn PDF document text
    • http://kudolire.22web.org/betofujibopoxujowofazaj.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/5f89f104-500a-4421-b69d-462d516126bf/19858089335.pdfIn PDF document text
    • https://s3.amazonaws.com/bisazabe/51958262601.pdfIn PDF document text
    • http://nutenumiguvivek.rf.gd/80773519917.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/police_report_online_san_diego.pdfIn PDF document text
    • http://jutemimiseg.epizy.com/pakos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/685af42a-7538-487b-85ec-a409a887d849/where_to_donate_clothes_for_cash.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c1e4b9a-4f10-409f-83ea-4eb2c9d0c0e6/47720987763.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d5d1388-59a7-40b3-a578-e48e9ada2deb/regutofusakisezonarusizu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64c8c3df-24b3-4359-88ca-999117dc677d/paslode_trigger_not_working.pdfIn PDF document text
    • https://c8019651-2137-4367-b38e-775fff3f8a75.filesusr.com/ugd/fc5a02_6a0c127971284c19b720e6d47b859903.pdf?index=trueIn PDF document text
    • https://9e2b3e3a-6a02-4d3b-8ba9-5acc01041672.filesusr.com/ugd/66c878_fbb286c3a5fb4ed7a786491b4b03b2a6.pdf?index=trueIn PDF document text
    • https://63d876aa-455f-4c41-9c38-50747f3e0b95.filesusr.com/ugd/a220d5_b95344b6097644029ddbe57d7ba07509.pdf?index=trueIn PDF document text
    • https://0ecef3a8-5193-4df1-8dcb-1b7dd0f2be2a.filesusr.com/ugd/e6092c_0aec7d747dae4e91984e40a568c02131.pdf?index=trueIn PDF document text
    • https://a6132035-7465-4fe4-be4e-2faa96c22dab.filesusr.com/ugd/cf950b_c419ed4ef9d44d069cd9b972fab396c9.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/posufij/xuzikobukaf.pdfIn PDF document text
    • http://xatalugatavu.epizy.com/24043975495.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/70378990926.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_off00020264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20264 5480 bytes
SHA-256: 19a5be7696f3fba298cc5b0cf4cc452ebd1452e0fc956d2109d5c2da25fd75cc
font_01_sfnt_off000214e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x214E9 14200 bytes
SHA-256: c93086772555dc7a002e0fd55f6fe5715bba564a7850c3ff04f11879a1231980

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