Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6e126146982411c…

MALICIOUS

PDF

95.6 KB Created: 2021-03-13 19:29:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: a913f4570a5ad7774ea19c407ee53f37 SHA-1: 5755e048808f0789827147ee38e503af53a90463 SHA-256: a6e126146982411c660f404f0ddb39667c11eeb72985f85cfc2eadba780ca7fd
96 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 embeds external URLs that direct users to attacker-controlled resources. 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-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://maypoin.ru/strik?utm_term=he+wrote+the+origin+of+species+crossword PDF link annotation
    • https://cdn.sqhk.co/navotezive/gcihIhh/blocky_highway_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464700/normal_6047c1e109736.pdfIn PDF document text
    • https://cdn.sqhk.co/kisoxukapab/emhmBii/best_bubble_tea_smoothie_flavors.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450336/normal_5ff411419d19e.pdfIn PDF document text
    • http://deladinabixek.sportsontheweb.net/is_there_going_to_be_a_4th_divergent_film.pdfIn PDF document text
    • https://cdn.sqhk.co/rujiwujik/fjDnggN/rusaxoz.pdfIn PDF document text
    • http://fagumawegoleleb.mypressonline.com/creation_story_worksheets.pdfIn PDF document text
    • https://cdn.sqhk.co/telupiza/PuhdgfP/52436592349.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://4c2674ec-1430-4cec-a455-d6a35d10586e.filesusr.com/ugd/38955b_997e69a5710e4515af86e4bbae2cb358.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/49927459.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fefce458-f763-48bf-ac66-9e0ef5473b89/thermador_steam_oven_specs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a15d266f-fea1-4e3c-a08d-b5b947a0ccad/jenusanurixivokupuguba.pdfIn PDF document text
    • https://s3.amazonaws.com/sojuravewi/77592815143.pdfIn PDF document text
    • https://5457524e-bace-410a-9ce7-c8d8bc0eedea.filesusr.com/ugd/f0ffd0_9b26be9f99c644758b92a2ad882a21f0.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/21d132c5-57d5-497b-b78e-01f9c3c4e416/fz_new_model_2020_mileage.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/geniwodesuripanimavupu.pdfIn PDF document text
    • https://7915398d-c9c2-4241-abdb-40cf742e4b8d.filesusr.com/ugd/d4df0f_e7efd80475b740629b6d4b515ddefedd.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kufazete/aua_guidelines_high_risk_prostate_cancer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/efd6b619-be59-41f4-8582-354dc91d1e47/stein_and_shakarchi_complex_analysis_chapter_3_solutions.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_off00013ad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13AD0 5228 bytes
SHA-256: 5d55eb295c475d261ca77ab11e125b0645335f71ac81b3a5f834f72867e52c47
font_01_sfnt_off00014cb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14CB3 11136 bytes
SHA-256: 3262f099fdc9250c3cb408895e32aa31151388f40ae2e894e8f122bc959a8aac

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