Malicious PDF — malware analysis report

Static analysis result for SHA-256 67e609b8d330847c…

MALICIOUS

PDF

69.0 KB Created: 2020-12-17 00:49:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 4d2192f83439b22e90fff6d13ca8f7af SHA-1: de8075625ac376ef084ab2e7f5ae49fc0500b0c2 SHA-256: 67e609b8d330847c4ea691d01a0d6ad2520ad6302b930b33cf5931d77c9bcd40
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffmen.ru/aws?utm_term=cold+supply+chain+management+pdf In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/antonio_candido.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc198bcc6d9645836271125/t/5fd01d15fc93c51d16d2cb66/1607474455074/zamukelilin.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc52fc0e5c7695ca9b77d8b/t/5fcac10421d753714623bc93/1607123205879/counter_attack_shooting_cas_new_fps_strike.pdfIn PDF document text
    • https://s3.amazonaws.com/womirofop/adverse_drug_reaction_reports_database.pdfIn PDF document text
    • https://s3.amazonaws.com/fobupojowojon/94020908625.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc559d7df132613bbdb3256/t/5fce5e3e0ab5d62feb258df2/1607360063200/unique_xtreme_plus_bike_2020_price.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1ae857d0c8f249d464d7c/t/5fcc3124c836a917f9fe7a7c/1607217444759/zombicide_no_rest_for_the_wicked_reprint.pdfIn PDF document text
    • https://s3.amazonaws.com/tonemakopinibem/trump_wheelie_unblocked_games_76.pdfIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/liwemexekarurad.pdfIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/blade_of_the_immortal_2017_mp4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18d7dc67-cf10-4d7c-accc-0d7f3d243b05/bethel_middle_school_bryant_arkansas.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc51ee2405d5340f344f969/t/5fc8aed8217b3604ede248eb/1606987481513/one_clue_word_level_29.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/st_dorothy_s_church_glendora_ca.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/45107368210.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_off0000d0e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0E5 5480 bytes
SHA-256: 80f1768646d36c1c2a1dbe407a6681f12a9ea8ffada33bf88e269d09dcd3f2e2
font_01_sfnt_off0000e370.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE370 10676 bytes
SHA-256: 507e3a49006b889267f5fc91e3b76f7717c17608a95af94b62d4e733af593525

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