Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1f0ef3f06c7e170…

MALICIOUS

PDF

81.1 KB Created: 2021-03-23 17:59:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: c7f67abade66b79495fae49d70a7f1a4 SHA-1: 9bf23efae1e434c4a45a4d5615e8263ac4f2abbc SHA-256: e1f0ef3f06c7e17041bfb9686fc3a2513e248360b08892bb35fcd49f1701da60
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, and ClamAV detected it as a phishing trojan. The ML classifier also flagged it with high confidence. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it is designed to redirect users to a malicious site, likely for phishing or to download further payloads.

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://kuzutuzo.ru/award?keyword=ashapurna+devi+books+pdf PDF link annotation
    • http://udilische.club/tefatepoloriduvimizibc9yns.pdfIn PDF document text
    • https://votarozoxanobo.weebly.com/uploads/1/3/4/3/134315144/9486a1065c5.pdfIn PDF document text
    • https://fejopipuzag.weebly.com/uploads/1/3/4/3/134308805/wipaxemakokopi.pdfIn PDF document text
    • https://bizepusenovub.weebly.com/uploads/1/3/4/5/134509919/vutipidirekimu.pdfIn PDF document text
    • http://christinaanddavid2019.com/pavurc64z2.pdfIn PDF document text
    • https://rowozone.weebly.com/uploads/1/3/2/7/132740293/migedaxabuve.pdfIn PDF document text
    • https://domirirezup.weebly.com/uploads/1/3/5/3/135382932/niguwizaj.pdfIn PDF document text
    • http://xekuluw.iblogger.org/catalogo_truper_distribuidor_2020.pdfIn PDF document text
    • http://prodson.space/how_to_put_back_together_a_conair_razorgd8ms.pdfIn PDF document text
    • http://creamwalls.space/what_are_the_two_types_of_emotionsh4u20.pdfIn PDF document text
    • http://sdorovie-sustavi.xyz/14476119641jz6uv.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/bopuxosavubare/brinkmann_propane_smoker_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/dark_souls_firelink_shrine_sheet_music.pdfIn PDF document text
    • http://vujofif.epizy.com/carols_for_choirs_4.pdfIn PDF document text
    • https://s3.amazonaws.com/jewizopukuni/dell_optiplex_780_data_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e47b179d-8a0c-4a12-b68a-2756458df00b/50_shades_of_grey_actor_interview.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98c4f36f-4b5d-45ae-ab1c-2883ea1dd491/tronical_tune_battery_pack.pdfIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/what_is_calculus_of_variations.pdfIn PDF document text
    • http://xamipekuxedatif.rf.gd/bhai_dooj_ki_kahani.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19741ec2-5f53-49d4-accb-11713f5b344b/mutafumi.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_off0000fb96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB96 5352 bytes
SHA-256: 828497e687996a0d242f404116dd6ccde3bd08e794bb51575e924da39451b1d7
font_01_sfnt_off00010dc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DC7 12288 bytes
SHA-256: 033e6df2a513038f5dfcb71eafe611077e6196f7e368b9db760f37c72bb4072d

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