Malicious PDF — malware analysis report

Static analysis result for SHA-256 79fce48b5461b743…

MALICIOUS

PDF

81.0 KB Created: 2021-03-13 23:48:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: a011b2d6d0532ea9b74daff402f4d746 SHA-1: 3b11c254eef90bd1ebe30a4b2d9f68fce3bbd180 SHA-256: 79fce48b5461b743120349b8c5d3c48c4319c89ea373001ef11cc7f686543758
204 Risk Score

Malware Insights

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

The PDF contains embedded links pointing to known malicious redirector infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also strongly flagged this PDF as malicious. The presence of multiple links to disposable hosting and the overall structure suggest a phishing or malware distribution attempt, likely initiated via spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://dafemum.ru/wix?keyword=everstart+battery+charger+owner%2527s+manual In PDF document text
    • http://creditpm.com/mini_golf_magic_carpetia7re.pdfIn PDF document text
    • http://nyvelsets.online/how_to_continue_marriage_after_infidelitydo92y.pdfIn PDF document text
    • http://webcam-model.online/panasonic_bread_machine_sd-yd250_partsvula0.pdfIn PDF document text
    • https://kiwakamumosa.weebly.com/uploads/1/3/5/9/135963193/najud.pdfIn PDF document text
    • http://immortal-sho.club/narujaf7uwxn.pdfIn PDF document text
    • http://rent-nout.site/90518841396u1c9y.pdfIn PDF document text
    • http://gexafozo.22web.org/54549873414.pdfIn PDF document text
    • https://weralafopibobal.weebly.com/uploads/1/3/4/3/134338927/02bce6a384aa.pdfIn PDF document text
    • https://wozukaziximuru.weebly.com/uploads/1/3/4/5/134587045/8595e6d4d14.pdfIn PDF document text
    • https://jotinebemoti.weebly.com/uploads/1/3/4/6/134681432/5914177.pdfIn PDF document text
    • http://kosolibanun.iblogger.org/41664863620.pdfIn PDF document text
    • http://subejewumo.scienceontheweb.net/45508799809.pdfIn PDF document text
    • http://organize.shop/ice_cream_shops_around_us0f2am.pdfIn PDF document text
    • http://perevod24-card2card.site/jifojokopotevaxc1i15.pdfIn PDF document text
    • http://ketaton.mywebcommunity.org/parrot_minikit_neo_user_manual.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tisiwiruligeg.epizy.com/88135648631.pdfIn PDF document text
    • http://bavatesivo.myartsonline.com/cyrano_de_bergerac_book_online.pdfIn PDF document text
    • https://ff743420-c5e2-4527-a456-70ddb2a1abd8.filesusr.com/ugd/5178f2_e26fd90c97d24b54a70234d44e200d5f.pdf?index=trueIn PDF document text
    • https://bb74f61c-7045-47bf-9a7e-968101ee373e.filesusr.com/ugd/81ef4b_92ebf6ecae35486789b935b20ce407bd.pdf?index=trueIn PDF document text
    • https://62abf401-5fc9-4991-ac00-cb6a0c8cf8ec.filesusr.com/ugd/e4ff69_6ee0e28f4625497aba792fa26a211348.pdf?index=trueIn PDF document text
    • http://nizowozutagele.atwebpages.com/the_dead_and_the_gone_book.pdfIn PDF document text
    • http://kusofiwu.epizy.com/ielts_answer_sheet_writing_task_2.pdfIn PDF document text
    • http://rulamiji.onlinewebshop.net/what_are_five_examples_of_hyperbole.pdfIn PDF document text
    • https://c3a7a64c-5591-430b-94d7-c2eadfdf3523.filesusr.com/ugd/966478_e7b679a9f0a64ae29abb9f6712caece7.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_off0000fe1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE1F 5596 bytes
SHA-256: 7f46c2b3e286e9ddd914f123910bd53dad743970de576d67282eb45ff13b3aa3
font_01_sfnt_off00011124.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11124 10684 bytes
SHA-256: 566d23cc38806437f336115118ed1e09182e130f226daae290491693f83f8dee

Open this report in the interactive analyzer, or submit your own file for analysis.