Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c65ace387627214…

MALICIOUS

PDF

73.4 KB Created: 2021-02-15 10:11:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 29a92917ba9c2f01678218296956bb9b SHA-1: 22ea29a45bc20523f0610c757cb841cc2f8a910a SHA-256: 9c65ace3876272149112e7571a0c622527c563703dce7f8117517f19d2c4a32f
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/aws?utm_term=haida+gwaii+fishing+report+2018 PDF link annotation
    • http://gupupokuvugal.22web.org/ayo_and_teo_hd_wallpaper.pdfIn PDF document text
    • http://arevakar-travel.com/443633606395wyk7.pdfIn PDF document text
    • http://wirodapupoz.iblogger.org/irregular_past_participle_verbs_worksheet.pdfIn PDF document text
    • http://stebsmeh.space/shortcut_to_run_as_administratorv3u78.pdfIn PDF document text
    • http://wiregabjuk.fun/buffer_solution_calculation_examplesow064.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/ganubifirigevi/suddenly_its_magic_free.pdfIn PDF document text
    • https://s3.amazonaws.com/dutuzanob/guiding_principles_of_the_constitution_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/34838097390.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/54496841513.pdfIn PDF document text
    • https://s3.amazonaws.com/luropi/bullet_vs_chammak_challo_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/sobaketemu/afmc_circular.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/mawatenelifelekag.pdfIn PDF document text
    • https://s3.amazonaws.com/zedilegol/bahubali_2_song_pagal._com.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/filmora_blockbuster_collection.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/gst_tax_rate_slab.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/desepixalalegilukegifusus.pdfIn PDF document text
    • https://s3.amazonaws.com/palevijuj/b_i_c_s_full_form.pdfIn PDF document text
    • http://regipikiwubadov.epizy.com/barbie_collector_value_guide.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_off0000df87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF87 5844 bytes
SHA-256: 41fab5cd5646b89f92d0c3b5c1a40d7ec5a7e43094a8b732e6cf73f216939718
font_01_sfnt_off0000f382.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF382 10808 bytes
SHA-256: eb33055cf4ee49d6ef3ea269de717c7270593c690e7003ece0b2b30e5966a1ff