Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cdabbcb43a7b9c7…

MALICIOUS

PDF

69.3 KB Created: 2021-02-27 22:30:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2389c9c13c43de2af592a8579188d1de SHA-1: 35de4d0bf075c5ca5bb9a952b2692d8981659da7 SHA-256: 6cdabbcb43a7b9c799cf4c95c288485cd333a0485ffb02cfd41d7cbf0d4d9e49
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://nipisod.ru/award?keyword=the+dragonbone+chair+audiobook PDF link annotation
    • http://iblack.space/kiteworks_administration_guide33ki9.pdfIn PDF document text
    • http://stonersfranchise.com/hi_ho_its_off_to_work_we_goqvugv.pdfIn PDF document text
    • https://zabaruwizugode.weebly.com/uploads/1/3/4/5/134596412/sepasixegaron_busofe_voxuzogimowi_vorugoba.pdfIn PDF document text
    • https://geridaradekod.weebly.com/uploads/1/3/1/4/131437552/donuwaguzodiwudobewe.pdfIn PDF document text
    • http://ribuvegiruni.iblogger.org/karuppasamy_songs_free_tamil.pdfIn PDF document text
    • http://cozyplacefor.rest/where_most_clastic_sedimentary_rocks_are_formedo47yg.pdfIn PDF document text
    • http://se-mrush.com/walmart_money_card_wont_register3dwev.pdfIn PDF document text
    • http://sungo1.space/zipajep1yu3.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/votubukaxogilix/enhancement_shaman_cataclysm_guide.pdfIn PDF document text
    • http://nenenadixipuso.rf.gd/90414670570.pdfIn PDF document text
    • http://wumujofagitamix.rf.gd/javascript_beginner_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/netupikisavaritidij.pdfIn PDF document text
    • https://s3.amazonaws.com/kosamupim/bully_anniversary_edition_revdl.pdfIn PDF document text
    • https://s3.amazonaws.com/mefonevimimix/raporidedur.pdfIn PDF document text
    • https://s3.amazonaws.com/lonozote/93203164977.pdfIn PDF document text
    • https://s3.amazonaws.com/xixonu/7776496554.pdfIn PDF document text
    • https://s3.amazonaws.com/bisiku/extent_report_1._4_jar.pdfIn PDF document text
    • https://s3.amazonaws.com/kofabube/47695984837.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_off0000d494.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD494 5144 bytes
SHA-256: 8566f66e0b406a319a5cd5e45e52e20ac28318577541e513f1583cb6ced2f597
font_01_sfnt_off0000e60a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE60A 9920 bytes
SHA-256: fe51e8f2c45e79c3f96d7bdd2b47ff09bf8d450fc446a6fe5e1aed26a714fd75

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