Malicious PDF — malware analysis report

Static analysis result for SHA-256 e574ccf4db705f23…

MALICIOUS

PDF

82.7 KB Created: 2021-02-25 10:20:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 34a08505be9deadf28c8105386830017 SHA-1: 023206ede55aae0f846d07610e0e27c7260e0789 SHA-256: e574ccf4db705f23515f05a143b930f279b4470d3a725fe5d08fc55336f2d1c3
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating maliciousness. The embedded URL `https://jottigo.ru/123?utm_term=hp+2541+printer+connect+to+wifi` suggests a phishing lure related to printer setup. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a phishing or malware distribution attempt.

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://jottigo.ru/123?utm_term=hp+2541+printer+connect+to+wifi PDF link annotation
    • http://bcpzonasegur4viabcp.com/intelligence_gathering_techniquess7deq.pdfIn PDF document text
    • http://malespw.xyz/jurnal_tentang_bakteri_coliformbo8q8.pdfIn PDF document text
    • http://hyipinvest.site/dnd_5e_wereratham9p.pdfIn PDF document text
    • http://pixunune.sportsontheweb.net/where_does_minestrone_soup_come_from.pdfIn PDF document text
    • http://universityru.fun/brother_mfc-_t810wstb03.pdfIn PDF document text
    • http://rajukilodagoje.mygamesonline.org/iso_31000_2018_descargar.pdfIn PDF document text
    • http://idealslimitalia-oficial.site/geometry_dash_2.113_apk_downloadmux68.pdfIn PDF document text
    • http://storedubai.shop/64356998362046gs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413474/normal_60206d3d96e4f.pdfIn PDF document text
    • http://towufato.mywebcommunity.org/everyones_an_author_2nd_edition_table_of_contents.pdfIn PDF document text
    • http://twirlini.com/romeo_juliet_tamil_songs_download4op58.pdfIn PDF document text
    • http://fitnesspack.net/41454249143dxcfp.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/sugosubexez/browser_pc_app.pdfIn PDF document text
    • https://s3.amazonaws.com/lomuper/new_whatsapp_messenger_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/lazolu/apa_format_reference_page_purdue_owl.pdfIn PDF document text
    • https://s3.amazonaws.com/wezukep/balmain_belt_size_guide.pdfIn PDF document text
    • http://zuputes.atwebpages.com/last_child_in_the_woods_ap_lang.pdfIn PDF document text
    • https://s3.amazonaws.com/gumagabu/missing_body_parts_worksheet_for_kindergarten.pdfIn PDF document text
    • https://s3.amazonaws.com/wokesabisevo/8274807041.pdfIn PDF document text
    • https://s3.amazonaws.com/wajufifenoxuj/2_inch_thick_plexiglass_sheets.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_off0001083c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1083C 5036 bytes
SHA-256: 7fbb530223549e1001a911a3ca760eb8fad41041fd205fb7b1e08ea5f3b40a9e
font_01_sfnt_off000119a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119A1 10632 bytes
SHA-256: 236d0529eecaefc008270d5d2e2e7494f033b852dadfad371a32b65aa6034a5f

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