Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b5954f451a02212…

MALICIOUS

PDF

74.2 KB Created: 2021-03-15 15:02:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 30b6f20cf8f268b46d93aebc27ad02de SHA-1: e2137a0b5845cf65e82133ccea08deab5f4bcf45 SHA-256: 5b5954f451a0221299873613623cf1cabcd1631caf63523afeaa25c4bddc94de
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, appears to be a lure related to 'Air force 1 movie free'. No scripts were extracted, but the presence of external URIs suggests a download or redirection attempt.

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://dugedepap.ru/123?utm_term=air+force+1+movie+free PDF link annotation
    • http://gagivukamuw.getenjoyment.net/vumegevubi.pdfIn PDF document text
    • http://matizaw.mywebcommunity.org/nesonun.pdfIn PDF document text
    • http://pemeturaw.iblogger.org/17994163626.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/tupofelasujewas/bat_to_apk_converter.pdfIn PDF document text
    • https://s3.amazonaws.com/pulujolatepuv/human_anatomy_quiz_questions_and_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f21c44f6-647d-404e-a059-345d73a5e157/15247742128.pdfIn PDF document text
    • https://5548a280-a194-4776-8019-0e256783c1fa.filesusr.com/ugd/f2c1dc_2e1f02c3efe24132863dce9888ac762d.pdf?index=trueIn PDF document text
    • http://tisiwiruligeg.epizy.com/wujogumasujogadagot.pdfIn PDF document text
    • https://ccd4a2e6-63e2-4dcb-a02e-1ae1253dabcc.filesusr.com/ugd/059ff1_4743cdcdbffe4f7fa4d223be00f74c78.pdf?index=trueIn PDF document text
    • https://2e4d99de-9d37-4ce2-abd5-0bbccafdbe51.filesusr.com/ugd/33a2e4_65e00bd3e9b94b8d89a28abe8dc988b4.pdf?index=trueIn PDF document text
    • https://8d59741e-369e-44be-b01e-8fbcb09d2d01.filesusr.com/ugd/7cefa9_28048ad9ef234c9abafbcbd4f39863ed.pdf?index=trueIn PDF document text
    • http://janalax.epizy.com/metabolismo_de_las_bacterias.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce5993db-c69f-413a-aa1a-69ad771e3a1c/42470367062.pdfIn PDF document text
    • http://pevivudawof.epizy.com/what_is_overall_text_structure.pdfIn PDF document text
    • https://s3.amazonaws.com/nakuzafol/netbeans_for_windows.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72d98653-1b11-4770-945d-2fc07027ed81/12850172116.pdfIn PDF document text
    • https://s3.amazonaws.com/supefujoxopubu/4630717534.pdfIn PDF document text
    • https://s3.amazonaws.com/belopudevuzuza/sivizamomiwebi.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_off0000e756.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE756 4708 bytes
SHA-256: 9cf3c5dd1cdb8423cf02d54e3192deb00f78490fca63aed9f0dd2b68063079b9
font_01_sfnt_off0000f75b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF75B 10748 bytes
SHA-256: 7d38b4b93d5d542dde46a24cbaa922938cd1c542c11e833b7926211baee9681e

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