Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7850f5616ab04d3…

MALICIOUS

PDF

79.2 KB Created: 2021-02-26 01:01:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 3766f1be2774ff8e925aafe8707e3894 SHA-1: b7dc94f1944c2f5400b9fb981436930c48d4f2dd SHA-256: e7850f5616ab04d3785f4170415b50b72a73e7d6b530196c6ae93e594f9fa5e5
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to 'The moral landscape'. No scripts were extracted, but the presence of external URIs and the ML detection strongly indicate a malicious intent to redirect the user.

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://jottigo.ru/strik?utm_term=the+moral+landscape PDF link annotation
    • http://j3vnci4.xyz/96749931936k43wl.pdfIn PDF document text
    • http://tejajugumoneton.66ghz.com/fts_answer_key_august_2019_pet.pdfIn PDF document text
    • http://vurenosul.22web.org/butterscotch_cookies_nutritional_information.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381551/normal_5fee2e481b327.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465941/normal_5ffea14f0aa69.pdfIn PDF document text
    • http://banepudota.iblogger.org/resucito_cantos_camino_neocatecumenal.pdfIn PDF document text
    • http://gufopitasuwo.22web.org/hungry_shark_apk_mod_rexdl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vodupuginotipir.rf.gd/nejipifukatidebuxejalum.pdfIn PDF document text
    • https://s3.amazonaws.com/mojivikapeti/64804914905.pdfIn PDF document text
    • http://vetetipusel.rf.gd/nidurisex.pdfIn PDF document text
    • http://zasidad.epizy.com/modern_chemistry_chapter_4_test_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/atesten_gomlek_indir.pdfIn PDF document text
    • https://s3.amazonaws.com/muvazi/teamviewer_14_for_windows_7.pdfIn PDF document text
    • http://xepolowamozuxan.rf.gd/48878879444.pdfIn PDF document text
    • https://s3.amazonaws.com/sewamos/lilajinu.pdfIn PDF document text
    • http://fizenigapajawak.epizy.com/golotupomezakokesisaxuzot.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_off0000f92f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF92F 5260 bytes
SHA-256: 9525d656930509d4872972b15ac64ddbcb6c7a67eb633bb556117970ed47432e
font_01_sfnt_off00010ae1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AE1 11116 bytes
SHA-256: 74239b971e43d4de99f74e1e33352c73c2b030022715b0ba7967bc63229448fe

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