Malicious PDF — malware analysis report

Static analysis result for SHA-256 afde596a6272e50c…

MALICIOUS

PDF

85.7 KB Created: 2021-06-05 04:05:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 1d0d35d4e325a1065bf449067dce17f5 SHA-1: ca178f2dfd547267733e489f4f1b2ecfb22587ca SHA-256: afde596a6272e50c63214c120ac72008a2a26008cae4a3f40c32751681786137
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that leads to a phishing domain, masquerading as a medical examination report. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or credential harvesting. No scripts were extracted, but the presence of a suspicious URL is a high-priority indicator.

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://crophysi.ru/123?utm_term=dmv+dot+medical+examination+report+and+card PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jebusolole.pbworks.com/f/digijitumodifemojolap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f77116f0-8a5d-45c9-b03a-0ad458df6e8e/neil_gaiman_sandman_audio.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c06da37-8511-42b3-882e-354d15df112b/definitions_of_educational_psychology_by_different_psychologists.pdfIn PDF document text
    • http://bibosopimugo.pbworks.com/f/23962569365.pdfIn PDF document text
    • http://mifimoruzuwo.pbworks.com/w/file/fetch/144470493/how_long_to_force_defrost_samsung_ice_maker.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c143bf1c-0876-44e1-bf14-658a76f6c042/how_long_to_become_an_educational_psychologist.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c8093bc-d238-4946-9a3a-980ca1a93d33/the_circuit_by_francisco_jimenez_audio.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da49946f-7b2e-445c-9501-b6a62b4f0441/kuwonavawovawopasulof.pdfIn PDF document text
    • http://zufiwuz.pbworks.com/w/file/fetch/144580719/dividing_decimals_by_whole_numbers_word_problems_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/984a7b7a-7bef-46a2-a25f-be953910ad2d/51514757700.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5b8ce75-2e01-4d23-a3fe-fcc0587528ea/cannery_row_best_food.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b09a1bb8-1630-44d2-b9b9-9778ac5b9bbe/what_are_the_4_elements_of_musical_theatre.pdfIn PDF document text
    • http://redelaw.pbworks.com/f/fezonowuvapawutivitudu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/441631af-a63b-4031-933c-e1ee2248b8b1/70817816790.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6b92a52-6f5b-4c29-91dc-f4be93f86bf2/donesazupuwajazakevam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51163616-d3df-4f65-8489-1091cbf7cead/how_to_use_excel_if_then_formula.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0ca1729-ebfa-433c-8986-e4eda1f584db/78038068102.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011415.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11415 5168 bytes
SHA-256: 595fb2eeae2198263ad2207ea94fbcde73c1c37f915624e943a63bee409bdac9
font_01_sfnt_off000125a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125A1 10648 bytes
SHA-256: 2bee2c40e75a04a0e13bed48000a4409a3e16bffca094da83d3e8f53cf67c3b9

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