Malicious PDF — malware analysis report

Static analysis result for SHA-256 fad444e53394f2dd…

MALICIOUS

PDF

61.5 KB Created: 2020-12-24 13:32:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 46d1d61a2f6b6c6a1be7e91bc29aa761 SHA-1: e353ebd75b3ab52959d16dd0794e668b1e4c46a1 SHA-256: fad444e53394f2dd04ef66af576ba4fa9748d401ebe71f2ce27d4cb198165987
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a large number of external links, many pointing to potentially malicious domains, indicating a link farm or phishing attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and numerous external URIs suggest it's designed to redirect users to malicious content, likely for malware distribution or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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.
  • 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://traffnew.ru/aws?utm_term=bolero+pickup+car+game PDF link annotation
    • https://futivodefumir.weebly.com/uploads/1/3/4/8/134861147/58bd6.pdfIn PDF document text
    • https://sobopagugakevul.weebly.com/uploads/1/3/4/8/134881985/fizebaxurigewo-wipofov-likofulo-zitijemisame.pdfIn PDF document text
    • https://bulavanu.weebly.com/uploads/1/3/4/3/134341337/silowuj_tolosime_nosulovume_barovizaf.pdfIn PDF document text
    • https://cdn.sqhk.co/soxemudu/CAjfdgc/kasuvazataju.pdfIn PDF document text
    • https://nezejigon.weebly.com/uploads/1/3/4/6/134611081/kabunaxeto.pdfIn PDF document text
    • https://dalenorilesa.weebly.com/uploads/1/3/4/8/134858788/8007776.pdfIn PDF document text
    • https://fiwuvoreguno.weebly.com/uploads/1/3/4/0/134000104/pipij_mirabexebutapib_movezenunutu.pdfIn PDF document text
    • https://ninadagonalot.weebly.com/uploads/1/3/4/6/134668818/kupesamanesosam-kajeno-povivotup.pdfIn PDF document text
    • https://lefasibemaji.weebly.com/uploads/1/3/4/5/134589759/wejos.pdfIn PDF document text
    • https://cdn.sqhk.co/wotezowedo/heJhjgU/cramped_definition_and_pronunciation.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/remeranexe/kaspersky_antivirus_app_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/lunipemugulo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ab5644f-f2a3-4e45-afa2-244c038aa98d/midland_x_talker_t55_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/wobuzisibal/crafting_writs_guide_eso.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/c._a_full_form_in_history.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_off0000b3a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3A9 5188 bytes
SHA-256: 026d344e17e844f2eaa9878eba351d8f9d7e6608258231a333b3c1f3a02d5de9
font_01_sfnt_off0000c542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC542 10652 bytes
SHA-256: e99ab88bea5501e9ddf99643409a7e9365e1817c9bc749b404230c64b08f6144

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