Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbff302b67905227…

MALICIOUS

PDF

77.8 KB Created: 2021-03-03 19:22:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 8e24dbe409378e02a7473a930dadec88 SHA-1: 359d00ff8930f0dc98277d1162be940e5e0e5292 SHA-256: cbff302b679052279f5ab02616837aa976b70c8edcecb90dacff254d86ea15e6
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://ponafet.ru/wix?keyword=eset+internet+security+license+key+2020+june PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4527357/normal_5ff64ebe082e3.pdfIn PDF document text
    • https://cdn.sqhk.co/borefigux/Oje3ih5/dune_movie_2020_feyd.pdfIn PDF document text
    • http://detonic-italy.website/80096356586iaj7s.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393625/normal_602de5d5a7ff4.pdfIn PDF document text
    • https://cdn.sqhk.co/lorotukogof/ifhqnib/zerelerumejowo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421782/normal_601dc2cb0076e.pdfIn PDF document text
    • http://copyrightshelpcenter.com/spanish_quizas_subjunctivetohkz.pdfIn PDF document text
    • http://toselarasomax.iblogger.org/wugelonivojopefajitinew.pdfIn PDF document text
    • http://neroveruturom.iblogger.org/72972326259.pdfIn PDF document text
    • https://cdn.sqhk.co/mekurapiw/gfiiJ5r/clinique_city_block_purifying_charcoal_cleansing_gel_sephora.pdfIn PDF document text
    • http://4338bacchus.com/bookkeeping_template_for_restaurantrufk1.pdfIn PDF document text
    • http://golesaluwo.66ghz.com/gmat_sentence_correction_cheat_sheet.pdfIn PDF document text
    • http://dvestideyli.xyz/ielts_english_speaking_topics_with_answersjk23e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490519/normal_600f8dfc9fbc5.pdfIn PDF document text
    • https://cdn.sqhk.co/xomorenut/rCZgexB/3602439264.pdfIn PDF document text
    • http://front-glass.website/84122299670mzirz.pdfIn PDF document text
    • http://4d-5d.com/cccam._cfg_enigma2168yd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dukedofabi.epizy.com/3844629421.pdfIn PDF document text
    • https://s3.amazonaws.com/lowuwofuxali/dowixazinegajelewi.pdfIn PDF document text
    • https://s3.amazonaws.com/tobovunoberiki/4159128166.pdfIn PDF document text
    • https://s3.amazonaws.com/jewizopukuni/creative_sound_blaster_x-fi_platinum_drivers_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/halloween_word_search_easy.pdfIn PDF document text
    • https://s3.amazonaws.com/biwubeleba/wevajakopu.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_off0000f3ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3FF 5056 bytes
SHA-256: 465497aba2029e9bd9ea54c017cde28dce250d73ee1f0195b0ea2932af7a224b
font_01_sfnt_off00010558.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10558 10608 bytes
SHA-256: 53b2a9abdfd476f6fa95a073aa09d0610113669b419a2497e47cf9430b150025

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