Malicious PDF — malware analysis report

Static analysis result for SHA-256 cad13bb85eb9e343…

MALICIOUS

PDF

73.0 KB Created: 2021-02-28 22:10:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: e26ac7a60e840baaf2ab4112feaf6d8a SHA-1: 04c34a9de809ad3b7551138922fe014006144df6 SHA-256: cad13bb85eb9e343b378e119775071b4e5d611716cf3fa5f2d459ea058043c5b
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that masquerades as a search result for religious texts, likely to trick users into visiting a malicious site. ClamAV detection and ML classification strongly indicate malicious intent. Although no scripts were directly extracted, the PDF structure and embedded URI are indicative of a phishing or malware distribution attempt.

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://vilenefex.ru/strik?utm_term=matthew+king+james+bible+new+testament+audiobook PDF link annotation
    • https://cdn.sqhk.co/kixikeli/fhd07ib/ikea_furniture_hacks_uk.pdfIn PDF document text
    • http://pexovowa.iblogger.org/2924917799.pdfIn PDF document text
    • http://xuxetosufuzo.getenjoyment.net/32224048949.pdfIn PDF document text
    • http://xulubapatoso.scienceontheweb.net/therapeutic_foster_care_arizona.pdfIn PDF document text
    • https://cdn.sqhk.co/wogirujut/9F7FiiZ/airtel_recharge_code_sri_lanka.pdfIn PDF document text
    • http://antonio-ita.space/loketazetosivem5xm7.pdfIn PDF document text
    • http://barcaporirternet-interbank-pe.com/jupogofotopulely9ddd.pdfIn PDF document text
    • http://vemasujananexu.22web.org/91959939016.pdfIn PDF document text
    • http://vazawujuzu.sportsontheweb.net/brother_ink_absorber_full_reset.pdfIn PDF document text
    • https://cdn.sqhk.co/mugejufunij/hhjDUgj/93371349514.pdfIn PDF document text
    • http://canonsburglake.org/gumovebuse.pdfIn PDF document text
    • http://smartcoin.design/add_twitter_feed_to_android_appy5416.pdfIn PDF document text
    • http://poguferuliwu.iblogger.org/8447031895.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/jebokizez/13189475611.pdfIn PDF document text
    • https://s3.amazonaws.com/dopugaxelelema/kigon.pdfIn PDF document text
    • https://s3.amazonaws.com/kavifunaruvi/los_renglones_torcidos_de_dios_pelicula_trailer.pdfIn PDF document text
    • http://tebokemirutexus.rf.gd/information_on_anthrax_bioterrorism.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/android_bluetooth_remote_keyboard_app.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/dafiranilosapolofanajiv.pdfIn PDF document text
    • https://s3.amazonaws.com/lixisariwulo/55183012685.pdfIn PDF document text
    • https://s3.amazonaws.com/veledabejufi/watch_football_live_app.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/29559091859.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_off0000dd59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD59 5520 bytes
SHA-256: 2f800044e1392e83c993ce1f2cd0c9b7966e44de1ac25af3920f873c3e295209
font_01_sfnt_off0000f01b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF01B 11596 bytes
SHA-256: d99cabdd3b034fc8015f350d9e0aa5110a11b9a634b75a50aa895d14cd539195

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