Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e0ae29a77af2aa0…

MALICIOUS

PDF

86.5 KB Created: 2021-03-05 14:05:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: b98d57b661d6f4615ce4224144703cfb SHA-1: 26af94d44c044b2e8b2ab79709ae8daba914837c SHA-256: 0e0ae29a77af2aa0ad8abfe391b773b70c898d57adbb8ea8dc64b148edc0c66f
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a domain associated with phishing lures, disguised as book reviews. No scripts were extracted, but the presence of an external URI and the ML/ClamAV detections strongly indicate a phishing attempt.

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://xezojetit.ru/award?keyword=robert+kiyosaki+books+reviews PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4448539/normal_601b7828a7f53.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381759/normal_5fe4d61a825a8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389616/normal_5ff371ded3f11.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494430/normal_5ffd6cc17e1d4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424991/normal_6001a122cb7af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455180/normal_602c3ba1e82bf.pdfIn PDF document text
    • http://fasufigige.iblogger.org/7973663898.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466140/normal_60072da498a37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488574/normal_6024969e612b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388833/normal_60245583af30f.pdfIn PDF document text
    • http://sepibigejakina.22web.org/story_elements_worksheet_grade_2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://zomimuju.rf.gd/vegot.pdfIn PDF document text
    • https://s3.amazonaws.com/xelimewat/vce_to_converter_program.pdfIn PDF document text
    • http://vepuguda.rf.gd/76036424067.pdfIn PDF document text
    • https://s3.amazonaws.com/vebenok/bootstrap_4_basic_html_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16db1543-3b1a-4140-87ea-1c8dc5a856cb/21057874712.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fa88953-6053-4fc7-936b-6c6e2cbfbd29/uglys_electrical_references_2017_edition_5th_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/kulinisokakewi/21907921303.pdfIn PDF document text
    • https://s3.amazonaws.com/wizitifowubux/kakegudil.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/10153607893.pdfIn PDF document text
    • https://s3.amazonaws.com/rafiralexezol/github_command_cheat_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd940941-cc95-4bee-ac74-93191a75c20c/is_there_a_journal_4_gravity_falls.pdfIn PDF document text
    • https://s3.amazonaws.com/rikolesafuwofar/etiology_of_congestive_heart_failure.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001085b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1085B 4792 bytes
SHA-256: 2620dfb00f4ff8b9fcf34ca0ab25104e921d94d934c1512616155dc2655f03dc
font_01_sfnt_off000118d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118D1 11028 bytes
SHA-256: 97fb35ccfa9029c4561f7308ce5126d81bbcb937504e899ddc3afddd6178c88e
font_02_sfnt_off00013e79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E79 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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