Malicious PDF — malware analysis report

Static analysis result for SHA-256 09e317bd7fbc5abf…

MALICIOUS

PDF

83.2 KB Created: 2021-03-05 18:55:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 67d8e91cd60bb9cfd037149d21fc4338 SHA-1: db1d08d5dfc14a78d68460d36e8944a49750d097 SHA-256: 09e317bd7fbc5abfa69e7a90af8057e7e57bf092aa1092b2b580ca0584be152c
76 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains an embedded URI pointing to a suspicious URL, suggesting a phishing or malware distribution attempt. The ML classifier also flagged this PDF as malicious with high confidence. Although no scripts were extracted, the presence of external URIs and the document's deceptive content indicate a likely attempt to redirect the user to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://zajinet.ru/strik?utm_term=how+to+winterize+a+boiler+heating+system PDF link annotation
    • http://sunshop.pro/michigan_common_core_standards_math_6th_graded567e.pdfIn PDF document text
    • http://scriptbook.xyz/four_vedas_in_english3wjg7.pdfIn PDF document text
    • http://balifruit.com/rig_veda_brahmanasp4xv9.pdfIn PDF document text
    • https://cdn.sqhk.co/tavikalamo/dt8hivj/13404688004.pdfIn PDF document text
    • http://kanshoper.site/assistant_project_manager_salary_nycgulru.pdfIn PDF document text
    • https://cdn.sqhk.co/nugopanage/baziiha/vixofisip.pdfIn PDF document text
    • http://fullstacket.online/voxatixapufaxuxiwebud8fhrh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wozoxub/bodybuilding_images_hd_free.pdfIn PDF document text
    • https://03ef875a-8351-4542-a98e-0d92fd1ed282.filesusr.com/ugd/e5a943_98d123daab544eaebf67d7c126695dc1.pdf?index=trueIn PDF document text
    • http://xuvekixofeku.onlinewebshop.net/lg_lfx28968st_ice_maker_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/woxorojero/bitbucket_single_file.pdfIn PDF document text
    • http://domuromu.atwebpages.com/vujojidumukiteriz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7eb9549e-70bd-4b3c-ab2c-de4ef60e1e8d/tudejatuwujitit.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/fodujuvunimalopapesuko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51a22fbc-0438-46b6-b343-4bbed6df80be/basokedamuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50633979-b940-43eb-bc97-a876c3ef543f/how_many_quarts_of_oil_does_a_2013_bmw_328i_take.pdfIn PDF document text
    • http://vakizonozajaxe.onlinewebshop.net/muzanazipabadelakunuv.pdfIn PDF document text
    • https://b5d51143-f34a-4a4f-9265-6917490cb775.filesusr.com/ugd/9f69bd_809ea1ebccce4b05b91f2456edc40754.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/zuxajosufale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/327d1295-e1de-4cab-90c1-eda38866767f/world_war_z_zombie_movie_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b408b56c-92aa-43a7-b0eb-0597dbec0136/2007_bmw_x3_3.0_oil_reset.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_off000107b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107B4 5444 bytes
SHA-256: fb3e0d457566f8f835a84c1f9b72c28acb4f2f6cf3fa55e7b1cca761a470b0e0
font_01_sfnt_off00011a26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A26 10632 bytes
SHA-256: 1a137fe5bfbf88ac70209da7fe7a0dab4bdf509a122069562f9ecfa52586dc3e

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