Malicious PDF — malware analysis report

Static analysis result for SHA-256 32636f753162ae7e…

MALICIOUS

PDF

438.3 KB Created: 2021-03-12 13:17:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: b04f267c59e29bfdc54959075038fa6f SHA-1: 2adfa7f35987bf3a1f3bbd398bc4571bcc60865a SHA-256: 32636f753162ae7e6d2ab6b6f0eb9386f80ef424307da802592924e052eeda92
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search result for a popular book, likely intended to trick users into clicking it. ClamAV detected this file as 'Pdf.Phishing.Trojan', and the ML classifier also flagged it as malicious. The presence of external URIs and the overall detection suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8939

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/award?keyword=albert+camus+the+plague+pdf+download PDF link annotation
    • http://sis-paypal.com/85331386283dkt0t.pdfIn PDF document text
    • https://jepiweluzobadur.weebly.com/uploads/1/3/5/3/135300479/kokakosa.pdfIn PDF document text
    • http://maska-respirator.shop/retail_marketing_file0j2bg.pdfIn PDF document text
    • https://poxuweke.weebly.com/uploads/1/3/1/6/131606533/zuvedawa.pdfIn PDF document text
    • https://kekulepolunan.weebly.com/uploads/1/3/4/8/134889268/0dff36.pdfIn PDF document text
    • https://sozuxeboniwuk.weebly.com/uploads/1/3/1/3/131381135/e943d7cbb1f9bea.pdfIn PDF document text
    • https://talogaxuzule.weebly.com/uploads/1/3/4/5/134596774/lilozewib-dotogumigasit.pdfIn PDF document text
    • http://sejujanovemo.medianewsonline.com/14980770978.pdfIn PDF document text
    • http://esplus.pro/the_bfg_1989_watch_onlineccm2t.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/pisedij/2925795599.pdfIn PDF document text
    • http://godakumezaguf.rf.gd/davanesigonavem.pdfIn PDF document text
    • http://vipuzala.myartsonline.com/58956840863.pdfIn PDF document text
    • http://kakasis.onlinewebshop.net/edipo_rey_texto_completo.pdfIn PDF document text
    • http://kozolamo.rf.gd/41492553142.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/wigijuworu.pdfIn PDF document text
    • http://joxaralabodegad.rf.gd/calibre_old_version.pdfIn PDF document text
    • http://losisotudek.epizy.com/uber_analytics_test_questions_and_answers.pdfIn PDF document text
    • http://rimaxuj.rf.gd/caller_tune_song_wapking.pdfIn PDF document text
    • https://5ccda086-29c7-4024-8a93-689df1f3b89c.filesusr.com/ugd/ed8107_15f0d66fa78445d390d218ca991acbf9.pdf?index=trueIn PDF document text
    • https://f38be386-5799-403b-9303-fb121113655a.filesusr.com/ugd/6f1aa7_7770fb8f722e427a9406391f07299833.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gedimuta/xafosedivavuputip.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_off00068626.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68626 5788 bytes
SHA-256: 1c67423b81fcb781ddcacdca81ceba4d1325cdf77b9a9e5b9cc3cd21e5fd9226
font_01_sfnt_off000699be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x699BE 14644 bytes
SHA-256: bd3f511fb97cd11c2bcc59ff7e0f744b0dabbef87395faeddf7e12c9622139da

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