Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d94f9b0c9b26129…

MALICIOUS

PDF

70.8 KB Created: 2021-03-19 08:28:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0de90c1d571d221228e327b954d0b02a SHA-1: 776a8aa59f7dacdf12fd9811756c813722180ac4 SHA-256: 8d94f9b0c9b26129ddad5e5ffa1f60fdd248b19d52110714c1dd671db26d287a
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://botokaw.ru/wix?keyword=dark+manuscript+osrs+locations PDF link annotation
    • http://rokamik.iblogger.org/vimavejot.pdfIn PDF document text
    • http://hookup757.fun/best_pencil_drawing_pictures_of_naturesd3vm.pdfIn PDF document text
    • http://diluzadumavotux.getenjoyment.net/47321822358.pdfIn PDF document text
    • http://tadugebakonuged.getenjoyment.net/almanca_renmek_iin.pdfIn PDF document text
    • http://mawifit.iblogger.org/account_google_manager_apk_6._0._1.pdfIn PDF document text
    • http://wewogokuwidu.mywebcommunity.org/which_is_the_best_mous_case.pdfIn PDF document text
    • http://mirumumavetifun.mypressonline.com/81073560651.pdfIn PDF document text
    • http://wersita.space/pikimegulajapagesofk95ju.pdfIn PDF document text
    • http://mokaxizekebade.scienceontheweb.net/37934173878.pdfIn PDF document text
    • http://lorem.space/kiss_of_deception_reviewubpox.pdfIn PDF document text
    • http://timogefubor.22web.org/wolatowiwaku.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/dd0254e3-904f-457e-99a9-16f4d3fc0853/how_to_tie_knots_for_salmon_fishing.pdfIn PDF document text
    • http://fogalefudomuj.epizy.com/18111660972.pdfIn PDF document text
    • http://tosurok.myartsonline.com/86380011719.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a9b0e59-1d5b-4ef3-ada9-5680d2108e8f/retima.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aaa7a69d-a6b7-4b0a-bd5a-4d6061d9b8d8/pictures_of_the_cast_of_little_house_on_the_prairie_then_and_now.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3526a953-3b01-4126-bfd5-eae448599bae/89766770886.pdfIn PDF document text
    • http://jabekafu.epizy.com/format_of_formal_letter_in_english.pdfIn PDF document text
    • http://dijuvunote.onlinewebshop.net/how_to_turn_graco_high_chair_into_booster.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28949dc3-ac38-48df-a6bf-7e18e62a39bd/bluejacket_shipcrafters_css_alabama.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d71b63d8-c6dd-46a3-a2c8-638286b1933b/97657152300.pdfIn PDF document text
    • http://valupakukav.myartsonline.com/19150488798.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d74e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD74E 5144 bytes
SHA-256: f4ee45e1dbe06784fc59460a3b3debc3933ecabc7032e493a78d38d112a8a0f8
font_01_sfnt_off0000e8c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C0 11132 bytes
SHA-256: db5f6c103bb0a563335650ada51ac487351d1e50d4c68cf9a89aed0c74e3823b

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