Malicious PDF — malware analysis report

Static analysis result for SHA-256 97a564053e6d2d46…

MALICIOUS

PDF

73.3 KB Created: 2021-02-16 23:53:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: b7c176f69eff715baab244bae316a094 SHA-1: c73ccc5662ba8d685763a7229f92faa1f1a3a271 SHA-256: 97a564053e6d2d461ceec897bd3e867818fda51d4893e35e7ad9bc12465de29f
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, which is likely a phishing lure disguised as a search result. No scripts were extracted, but the presence of the malicious URL and the overall detection suggest a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/aws?utm_term=what+is+taco+bell+quesadilla+sauce+called PDF link annotation
    • http://pet-guru.shop/gelofilavad8nqz.pdfIn PDF document text
    • http://blu-ital.space/decimal_multiplication_and_division_worksheetf6x6a.pdfIn PDF document text
    • http://diseguj.22web.org/bevunaweserokuwemosibu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417040/normal_6004e4f483738.pdfIn PDF document text
    • http://tehnotop.space/jokipamekezxzfqr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426269/normal_5fe2f2b44da81.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382627/normal_5fed8fe40d6b5.pdfIn PDF document text
    • https://cdn.sqhk.co/kekelivig/EjvGCjh/18444602581.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/bepukuba/58858533293.pdfIn PDF document text
    • https://s3.amazonaws.com/kasuwevovog/islamic_brochure_vector_free.pdfIn PDF document text
    • http://vowefaxi.epizy.com/chill_music_free.pdfIn PDF document text
    • http://pifexowofimef.epizy.com/linking_verb_worksheets_grade_3.pdfIn PDF document text
    • http://navebulaj.epizy.com/php_formatting_vscode.pdfIn PDF document text
    • https://s3.amazonaws.com/dozuga/gusobutuber.pdfIn PDF document text
    • http://popirarubinuluk.rf.gd/literature_review_of_pipe_bending_machine.pdfIn PDF document text
    • http://suxikikafib.epizy.com/wupavi.pdfIn PDF document text
    • http://kofujuluzode.epizy.com/anniyan_tamil_movie_all_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/address_format_us.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_off0000d338.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD338 5212 bytes
SHA-256: 9eb8efcdd0d938f5a918ea8618f11537e8fe86cbf2d54f6ef3ba37ad6d3c98eb
font_01_sfnt_off0000e4f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4F0 2944 bytes
SHA-256: 385d85f6011b578876e917e8ed621daceb06c5feb52884c95f978a2816ed22d5
font_02_sfnt_off0000f172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF172 11364 bytes
SHA-256: 4ac20392ff9ea7444db4faa5fa40582fd626c08bc491620725e1e6adcfe20f08

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