Malicious PDF — malware analysis report

Static analysis result for SHA-256 9692c175daa5f4f0…

MALICIOUS

PDF

67.0 KB Created: 2021-03-05 00:16:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 681cffc89b9479fc7f963173f13c866e SHA-1: 0825745d89b17090dc9117a39740f8735249ae81 SHA-256: 9692c175daa5f4f050a002abfb1f9564a556d06eedffc833665ee217f8ea8ebf
244 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.
  • 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.
  • 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/award?keyword=jesus+be+the+center+of+my+life+lyrics In PDF document text
    • https://cdn.sqhk.co/gizukakom/XgiS8ie/zagopa.pdfIn PDF document text
    • https://cdn.sqhk.co/dutimapo/ggjdgdy/tebevogak.pdfIn PDF document text
    • https://fusufuxono.weebly.com/uploads/1/3/1/6/131606103/7561968.pdfIn PDF document text
    • https://cdn.sqhk.co/guzufaseba/h3iboic/18939142079.pdfIn PDF document text
    • https://xepudala.weebly.com/uploads/1/3/4/7/134737014/xepubiju-wovobazenolaz.pdfIn PDF document text
    • https://cdn.sqhk.co/zogobadakedu/hbqjbif/64829453335.pdfIn PDF document text
    • https://bojuwidus.weebly.com/uploads/1/3/4/6/134698781/tobazalono.pdfIn PDF document text
    • https://cdn.sqhk.co/ralapogifur/Oeihbha/air_traffic_controller_salary_qualifications.pdfIn PDF document text
    • http://gobegoxox.22web.org/brindisi_report_cronaca_san_pietro_vernotico.pdfIn PDF document text
    • https://cdn.sqhk.co/xugumewaz/PigSfBd/28886690471.pdfIn PDF document text
    • https://cdn.sqhk.co/ravusigi/tuZNia2/love_quotes_in_spanish_with_english_meaning.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://21e323bd-7fdd-46e9-a6c7-4880e76d7610.filesusr.com/ugd/0a51c1_721fb2518d5d4be8a865893573c7ecd2.pdf?index=trueIn PDF document text
    • https://a86a6b26-b473-4b55-b9aa-7628a2bff077.filesusr.com/ugd/4f270c_ddc229c6af9a416fa80bedb677f10671.pdf?index=trueIn PDF document text
    • https://73af689e-4c80-4f62-99d3-7a886641ad81.filesusr.com/ugd/3b5dd9_ce31ed0a95bb4b7eb552bc4682edf096.pdf?index=trueIn PDF document text
    • http://vabizofolimise.epizy.com/annona_squamosa_medicinal_uses.pdfIn PDF document text
    • http://pimibini.epizy.com/centerpoint_energy_power_outage_reporting.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cde8bb45-db62-494e-85c5-c6d83c682699/aviation_weather_forecast_app.pdfIn PDF document text
    • http://zozafiromilofin.epizy.com/certificate_attestation_letter_format.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b568362-5351-48d4-b8b2-c3b7d0caed96/liftmaster_8365w-267_reviews.pdfIn PDF document text
    • http://nozulorot.epizy.com/11252008427.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_off0000cbb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBB8 5140 bytes
SHA-256: 0599dff2d142cb2bdf43d22201f5daad25b2928a8be9fb60a22e31566afebac1
font_01_sfnt_off0000dd13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD13 9840 bytes
SHA-256: a9c9ca0cfd738133427f05f6533627b0e81d385eeefada28ea6842f76e878dd4