Malicious PDF — malware analysis report

Static analysis result for SHA-256 32458e319a115d21…

MALICIOUS

PDF

71.6 KB Created: 2021-04-05 18:48:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 1bc88187f66dbf866db6914b6e633f05 SHA-1: b350f4ac93ed21c35df0aced201d522ace744a6c SHA-256: 32458e319a115d212144a93fc2a137951f00a3e7c05116dbfcda6904aa708853
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The embedded URL points to a suspicious domain, likely intended to host a phishing page or download further malware. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, consistent with phishing or malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/strik?utm_term=what+is+conflict+in+business PDF link annotation
    • http://about-central.com/75313527200lulb7.pdfIn PDF document text
    • http://sugakibabusu.scienceontheweb.net/27659934056.pdfIn PDF document text
    • http://ubzvp.com/gidikigefalupobefiloraditgf90i.pdfIn PDF document text
    • http://mumijivamivaxij.medianewsonline.com/baldur_s_gate_descent_into_avernus_free_download.pdfIn PDF document text
    • http://zeludupixejufi.medianewsonline.com/biblioteca_virtual_descargar_libros.pdfIn PDF document text
    • http://prodson.space/mb_ascp_study_materialyeutu.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/betefowubevat/rooted_android_phone_list.pdfIn PDF document text
    • https://s3.amazonaws.com/debiwelof/21438585989.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6aaea81-9c30-46c5-809e-403d5386fe50/19765612355.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/50_shades_of_grey_movie_google_docs.pdfIn PDF document text
    • https://s3.amazonaws.com/zowibatev/divomufatifutoxirokuv.pdfIn PDF document text
    • http://nejimafalun.onlinewebshop.net/visarifotigi.pdfIn PDF document text
    • https://s3.amazonaws.com/gosete/stephen_king_gunslinger_audiobook_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a173122d-07b5-4f47-9892-d71a952aead1/42118655785.pdfIn PDF document text
    • https://s3.amazonaws.com/xunilukegez/63016935461.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2cb97d6-a0c0-4907-b262-c2685ddec00b/casio_g-shock_gd-100ms.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2fc1e1c-1f33-4244-b3c9-69f6708bff21/how_to_replace_whirlpool_refrigerator_filter_1.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/49988581989.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/rivazorarabewujenoxonuduw.pdfIn PDF document text
    • http://gixopiv.onlinewebshop.net/defensa_siciliana_variante_scheveningen.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_off0000de62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE62 5024 bytes
SHA-256: ca018c244d3786ef82e4b3f231632e5956c2a0430ede23ae993c53273f1f8d8d
font_01_sfnt_off0000ef8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF8C 9988 bytes
SHA-256: 5422b1a5ab7eb5c5c9ea91e80cdb9d950386141574868065909a82e84c899843

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