Malicious PDF — malware analysis report

Static analysis result for SHA-256 b00ea0670c93d141…

MALICIOUS

PDF

68.1 KB Created: 2021-03-04 23:28:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 5433e21ab100f2eb8827c0814afa532c SHA-1: 11c4add5f659868fe9dbeb1a77df8934b883000d SHA-256: b00ea0670c93d141925ea16049f4c573f8d774e4555d6066b5f8dd2f4006141c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF sample exhibits characteristics of a phishing lure, employing SEO link farming techniques to distribute potentially malicious content. The presence of multiple external links, including one to 'pelibifir.ru', and the ClamAV detection as 'Pdf.Phishing.Trojan' strongly indicate malicious intent. The document's structure and embedded links suggest an attempt to trick users into downloading further payloads, aligning with common phishing and malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://pelibifir.ru/award?keyword=chakra+books+pdf+free+download PDF link annotation
    • https://jixatazibasuv.weebly.com/uploads/1/3/4/4/134402985/2750414.pdfIn PDF document text
    • https://cdn.sqhk.co/fogibadeku/ibmrjdu/within_the_whirlwind_movie_review.pdfIn PDF document text
    • https://pufabakorulur.weebly.com/uploads/1/3/4/3/134320636/xidof.pdfIn PDF document text
    • https://pezazexumazu.weebly.com/uploads/1/3/5/3/135392870/648b07d28033e.pdfIn PDF document text
    • https://bolowotusupiwam.weebly.com/uploads/1/3/5/3/135300352/7943509.pdfIn PDF document text
    • http://fdvsefwfrw.space/bitosoritelavejopuvv5opq.pdfIn PDF document text
    • https://tagipuzato.weebly.com/uploads/1/3/0/7/130776724/rodutinopubug.pdfIn PDF document text
    • http://bubble1.space/etina_pro_cizince_a_azylanty_a1ar8mb.pdfIn PDF document text
    • http://dakajak.medianewsonline.com/kuxelifadexe.pdfIn PDF document text
    • https://cdn.sqhk.co/sarafogu/3AUiijY/kukil.pdfIn PDF document text
    • http://lotibamuzuti.scienceontheweb.net/samsung_c480fw_install_toner_error.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://7605c768-a471-4169-85a9-0dab509fd250.filesusr.com/ugd/20ab23_4a9eae764ba841bbab0b74f69a18aac0.pdf?index=trueIn PDF document text
    • http://turijebudeta.rf.gd/free_printable_alphabet_tracing_templates.pdfIn PDF document text
    • https://070488ba-e3d9-4c74-834b-445551f5513c.filesusr.com/ugd/fb83f1_76ae6daadca1444ba84c90d459bffd78.pdf?index=trueIn PDF document text
    • http://pewavifasovifuz.epizy.com/pokemon_backpack_playset_amazon.pdfIn PDF document text
    • http://wutesejib.onlinewebshop.net/matlab_download_free_for_windows_7_64_bit.pdfIn PDF document text
    • https://9907981b-0bc7-4fd3-a434-169f7cdadf42.filesusr.com/ugd/575363_fad66a13bc1e44108c61c32f21438d9e.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_off0000ce09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE09 5332 bytes
SHA-256: 0be5a2bd3d3e2719a61ffd61f0236b80a5a89a3cd5df2bbd749a1bdff74c3ab7
font_01_sfnt_off0000e02c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE02C 10548 bytes
SHA-256: d099be5bf3cafcd51530b9d5193dee83c23bd38bc509f8b5c4e80a31c333d5b3

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