Malicious PDF — malware analysis report

Static analysis result for SHA-256 afd6a14e2554797f…

MALICIOUS

PDF

84.5 KB Created: 2021-04-07 22:09:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: c54e7a726152dd27409951b0812429c9 SHA-1: 577b80ea2ec9d73df23815ebccc7c4407eb90777 SHA-256: afd6a14e2554797f9a92bcb6bf3082d08052782fb1521695b89b85500c98425b
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 0.9997

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://midufefew.ru/strik?utm_term=kenmore+elite+dishwasher+installation+manual+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4465025/normal_5feb7598b0c0b.pdfIn PDF document text
    • http://subuxiwubemew.getenjoyment.net/conference_room_scheduling_app.pdfIn PDF document text
    • http://fegokodelaxen.scienceontheweb.net/jack_and_the_beanstalk_the_real_story_full_movie.pdfIn PDF document text
    • http://sallely.xyz/what_does_hourly_base_pay_meansqogw.pdfIn PDF document text
    • https://fuxarudoniw.weebly.com/uploads/1/3/5/3/135350341/bisun-xunevuzer-wilemab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450427/normal_601a0ef67cebf.pdfIn PDF document text
    • http://halfraire.xyz/deluxabin1dat6.pdfIn PDF document text
    • https://vuguzakinizole.weebly.com/uploads/1/3/4/4/134493236/xasiwi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449014/normal_6053bd9f4c722.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496374/normal_605a1a9d900eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393791/normal_6025e9a163836.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463785/normal_606a32655df3e.pdfIn PDF document text
    • http://shlifovka-pol.website/fedofetobmuti3.pdfIn PDF document text
    • http://pejelurim.getenjoyment.net/ejercicios_de_movimiento_vertical_de_caida_libre.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416144/normal_605184339eb8a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384035/normal_6057cc45823d0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383308/normal_5fed732652761.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://muvekalufisu.atwebpages.com/difference_between_qualitative_and_quantitative_research_design_slideshare.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f4fb4e6-2d70-4ae7-9166-84d188558d90/digital_photography_magazine_subscription.pdfIn PDF document text
    • http://nubibubimalepik.atwebpages.com/carranza_s_clinical_periodontology_10th_edition_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11e78232-c3cc-425a-ba72-4662308690dd/budozixowigi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cd6c81a-849b-4bba-9515-5fde61e92635/fetofadajipekobedoluf.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_off00010bf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BF3 5344 bytes
SHA-256: 758a410163fdf929722c19df22f359a1fc80eeb38a62dbe3950e64f9c743c6c0
font_01_sfnt_off00011e09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E09 11308 bytes
SHA-256: f2dd7acfa620916c2e8e284d98696813ddc7dd7e47fa95fb544d7251464a0efc

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