Malicious PDF — malware analysis report

Static analysis result for SHA-256 e03729197402a2d4…

MALICIOUS

PDF

85.2 KB Created: 2021-04-04 22:21:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: cba2861bb6c6b41bb75f4a566db673c8 SHA-1: 9f2a48a8060ebbd6bcde250e80d5be520ae9f680 SHA-256: e03729197402a2d4e3796c8c031a5630d9790bc4ce3330d7ffdf75b43833baea
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URL that mimics a search result for pairing Bluetooth earbuds, likely intended to trick the user into clicking it. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest a phishing attempt to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jumiwimov.ru/strik?utm_term=how+to+pair+groove+onn+bluetooth+earbuds PDF link annotation
    • http://tukomibewi.getenjoyment.net/43100670385.pdfIn PDF document text
    • http://pojapusevipuzu.mypressonline.com/78253120612.pdfIn PDF document text
    • http://zememor.sportsontheweb.net/how_to_troubleshoot_car_ac_compressor.pdfIn PDF document text
    • http://logorag.22web.org/fofekilalumelikejonojete.pdfIn PDF document text
    • http://sifisomatexow.sportsontheweb.net/warhammer_40k_8th_edition_rules_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vobikeretuwof.atwebpages.com/rodujag.pdfIn PDF document text
    • https://s3.amazonaws.com/bisapovepizaj/gemabilidizatusixowaka.pdfIn PDF document text
    • https://s3.amazonaws.com/fadobirak/integral_del_arcoseno_de_x_al_cuadrado.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/73105966158.pdfIn PDF document text
    • https://s3.amazonaws.com/jinotugiwomo/cronicas_de_una_muerte_anunciada_resumen_breve.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/cerebri_sans_font_family_free.pdfIn PDF document text
    • http://pijularof.epizy.com/glossary_of_computer_science_terms.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/21069208175.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/gudogekavolagumuwat.pdfIn PDF document text
    • http://kewevagisugimuw.onlinewebshop.net/why_is_traeger_so_expensive.pdfIn PDF document text
    • https://s3.amazonaws.com/sazomo/51956102998.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/malaxik.pdfIn PDF document text
    • https://s3.amazonaws.com/zepifudoxapo/zevubilidinasadategavat.pdfIn PDF document text
    • http://joriboka.epizy.com/4607277373.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/preliminary_research_report_example.pdfIn PDF document text
    • https://s3.amazonaws.com/tunenijexe/the_lord_of_the_rings_trilogy_and_the_hobbit_trilogy.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_off00010e08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E08 5472 bytes
SHA-256: d9b5326eba404b727001357c2ebbaf4126a62cadc6bb3b51f6b5aca4e4297655
font_01_sfnt_off000120a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120A7 11256 bytes
SHA-256: 937e1a6f762bf6f51d43db90000f742a4137435e5919180bca3ca0fe3264575c

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