Malicious PDF — malware analysis report

Static analysis result for SHA-256 05ed997a836fd2ed…

MALICIOUS

PDF

68.9 KB Created: 2021-02-24 02:41:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 70a7be0dab56af38e9d1ffec095c1e75 SHA-1: 05db269ea5dc5b53772c287ce425554c3300aa09 SHA-256: 05ed997a836fd2ede794c401421a3b5eb23d1a575c8c521c8a1ba2fa72ed73c1
254 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=canon+eos+elan+7e+manual In PDF document text
    • http://toolsbestpricemicrometer.site/86570305970ozfx6.pdfIn PDF document text
    • http://xanimupa.22web.org/trec_information_about_brokerage_services_form.pdfIn PDF document text
    • http://badge-verification-center.com/fozojopavotutonebasefamijqzns.pdfIn PDF document text
    • http://greenbike.shop/841794634kiqad.pdfIn PDF document text
    • http://studytogether.fun/how_to_charge_dead_mobility_scooter_battery5ao84.pdfIn PDF document text
    • http://potolkilife.ru/138638448491pjr8.pdfIn PDF document text
    • http://scandisvet.ru/32677722409v26hd.pdfIn PDF document text
    • https://tokafiwunan.weebly.com/uploads/1/3/4/3/134372509/6218703.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/rijaliwiguvex/1867521087.pdfIn PDF document text
    • http://bazogojuzularib.rf.gd/78088751090.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/lefigogajojut.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/ost_hotel_del_luna_eps_12.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/11675559087.pdfIn PDF document text
    • http://momugegunimex.rf.gd/how_do_stratiform_clouds_form.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/8185158897.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/hd_banner_background_pictures.pdfIn PDF document text
    • http://goxakimolo.epizy.com/tawozijeboxezujexugujol.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_off0000d2da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2DA 4720 bytes
SHA-256: 5df263ee7516e8390ea60f462026f3120dba12e9514be171af400a7a55019209
font_01_sfnt_off0000e2d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2D9 10536 bytes
SHA-256: 4df55b57107ac1b0552e6dad74a6e02ae37525d63e5b09a5a58cb6380fff17aa