Malicious PDF — malware analysis report

Static analysis result for SHA-256 61f97cb6000df34f…

MALICIOUS

PDF

68.9 KB Created: 2021-02-25 22:44:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0c6e400e003d88a10c0f50e3429e68f6 SHA-1: 4828c53d9f9ba0ceea29836f409b86e3d0deafa2 SHA-256: 61f97cb6000df34fd4a04e6d17342a4b502b0ee7422282ff3c0ac04b4fb9cecb
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://druttle.ru/wix?keyword=oak+forest+park PDF link annotation
    • http://storedubai.shop/montana_beneficiary_deed_template9hqmc.pdfIn PDF document text
    • http://wildber.store/49017983398f9uwg.pdfIn PDF document text
    • http://leyloften.online/blackjack_pizza_greeley_order_onlineh0fk9.pdfIn PDF document text
    • https://xijiruxexewige.weebly.com/uploads/1/3/4/7/134725886/riluwaxu.pdfIn PDF document text
    • https://lazofakivew.weebly.com/uploads/1/3/1/4/131406449/poteko.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389585/normal_6022520f7fb3a.pdfIn PDF document text
    • http://ita-fitness.fun/rimujokutufenevadofekagtp0cc.pdfIn PDF document text
    • http://pixell.store/can_you_fall_in_love_with_someone_online_without_meeting_him1sd1l.pdfIn PDF document text
    • http://shopee24.site/meade_etx-70at_price2giol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490720/normal_5fd6a95b26036.pdfIn PDF document text
    • http://ryursew.space/where_does_oxidation_occur_in_electrolytic_celln4seg.pdfIn PDF document text
    • https://negozikazaseju.weebly.com/uploads/1/3/4/5/134587396/3637901.pdfIn PDF document text
    • http://instapriz.online/visio_football_playbook_stencile1u7e.pdfIn PDF document text
    • http://brosbass.com/how_to_fix_a_macbook_charger_that_wont_chargeogbcn.pdfIn PDF document text
    • http://sait-ok.ru/darinijopetobovudigetewinb83c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459057/normal_5fe7c4e2c7761.pdfIn PDF document text
    • http://otomail.business/509727258331icra.pdfIn PDF document text
    • http://efarbok.xyz/little_house_on_the_banks_of_plum_creekktc6j.pdfIn PDF document text
    • http://rimka.xyz/18322826055us9s8.pdfIn PDF document text
    • http://mx50off.info/dunudagedadibuxakovod7glmz.pdfIn PDF document text
    • https://wavujosivisero.weebly.com/uploads/1/3/2/7/132740585/legidifoluvowovodep.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD303 4956 bytes
SHA-256: 45c525b63e9c6a70cc9f94924b76010afe4203bd3f70358183a4f36738f327f2
font_01_sfnt_off0000e3f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3F2 10016 bytes
SHA-256: 2643f94dd8ff97db3bb24ca7dfbc92f927eda1bf0c8848ce2b4d0a8fd425a636