Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d765d6ec3610125…

MALICIOUS

PDF

84.5 KB Created: 2021-03-27 19:58:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 2cd9acda9b903d8aa201ac9fa5887811 SHA-1: 25dc8bf3d30c72d724e27328f0a2147f1eab07fb SHA-256: 6d765d6ec36101251bb14d3a314ee211abfc9b62e3d756146cbde779872837dd
136 Risk Score

Malware Insights

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

The file is a PDF that employs a lure related to 'bishop storehouse hours las vegas' and contains an external URI pointing to a suspicious domain. Heuristics indicate it's a phishing attempt using an SEO redirector. While no scripts were explicitly extracted, the PDF structure and the presence of external links suggest it's designed to lead the user to a malicious website, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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
  • 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://golowaki.ru/wix?keyword=bishop+storehouse+hours+las+vegas PDF link annotation
    • http://gesojepaxo.22web.org/python_3._6._2.pdfIn PDF document text
    • http://vudasuti.mygamesonline.org/a_practical_english_grammar_third_edition.pdfIn PDF document text
    • http://warewakeb.sportsontheweb.net/1573801203.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444102/normal_603188d7bf77a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382627/normal_601ae3b739251.pdfIn PDF document text
    • http://loziwazekon.medianewsonline.com/although_even_though_despite_in_spite_of.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462993/normal_60522478cd962.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408879/normal_60210095a3cde.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451356/normal_603797d62e2c0.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/wusigipufuvowix/xikekok.pdfIn PDF document text
    • https://76df98a8-3e94-4eee-a6f5-23e1de06049b.filesusr.com/ugd/54c74c_cbc90343342f4a2aa96ec86d81f27e53.pdf?index=trueIn PDF document text
    • http://jisijuvod.myartsonline.com/pelutuwos.pdfIn PDF document text
    • http://bisubop.epizy.com/how_to_fill_a_bobbin_brother_ls14.pdfIn PDF document text
    • http://rosaboz.rf.gd/gabigor.pdfIn PDF document text
    • https://da5bec28-7969-4117-8ffb-5069fce5e80c.filesusr.com/ugd/31593d_91971b02276b4fa8b94b38b1efad7856.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/ropuba/bireretufikonenuzarilo.pdfIn PDF document text
    • https://81d89a68-18ac-4cf1-ad00-ddd5d2f7da41.filesusr.com/ugd/ed58ef_3da74c2316e64696ae672a3b2ac2616c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lanubili/21265071734.pdfIn PDF document text
    • https://ee60c613-3dd1-430d-b711-08e3dcbf0273.filesusr.com/ugd/19ce5d_f4ddcb42bdd741189ec034cbb509b18c.pdf?index=trueIn PDF document text
    • http://tinodaxaxaduj.rf.gd/sbi_personal_accidental_insurance_form.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/70388163733.pdfIn PDF document text
    • https://s3.amazonaws.com/lakujusitejojet/conservation_of_mass_lab_worksheet_answers.pdfIn PDF document text
    • http://kakasis.onlinewebshop.net/54684380704.pdfIn PDF document text
    • http://laxuzakefojo.epizy.com/9112475312.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/us_army_field_desk_vintage.pdfIn PDF document text
    • https://a12a05ab-6462-4855-b086-b0a2a961d6d8.filesusr.com/ugd/2c76f4_8ae8164691ad4343b8e1e21227aeb0d5.pdf?index=trueIn 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_off000109fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109FE 5192 bytes
SHA-256: cccd2f9b91b0c9f5d690fb7a6436e3a8f22bd3981caf87434beb95824a71ca2e
font_01_sfnt_off00011bae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BAE 11332 bytes
SHA-256: 71b649d42d740264fe74c98f35b39ec37862e096fa1a60e376dd1f5cdd0cabc3