Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a873112b4705678…

MALICIOUS

PDF

75.8 KB Created: 2021-03-31 19:46:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 4ff6d60d7d9722e9c81c3fa65cf500ed SHA-1: 5904f36a5d815b001cf4e00a504f1c04fc20c48e SHA-256: 7a873112b4705678f55e0348c83e873462a4b961e6bec0ebab385f3547a39799
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://nipisod.ru/123?utm_term=lansinoh+manual+breast+pump+flange+size PDF link annotation
    • http://kemutedetabu.scienceontheweb.net/cefazolin_davis_drug.pdfIn PDF document text
    • https://cdn.sqhk.co/vavetiset/Jhf99jc/expositor_s_bible_commentary_free.pdfIn PDF document text
    • http://bebalezuve.medianewsonline.com/tebevakonak.pdfIn PDF document text
    • https://cdn.sqhk.co/gejemizus/aMDsiey/79561519556.pdfIn PDF document text
    • https://cdn.sqhk.co/nelufebo/gdjhQja/believer_saxophone_sheet_music.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a41d8f8c-92bd-416d-bf9a-1f4707df7912/sandisk_secure_access_v2_password_recovery.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/edeebb02-f409-41c5-85d6-35bb4811b476/42518130621.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c8a048f-bfcc-43ab-9dda-08583baa8a03/91644955211.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/158cffa6-6b62-443b-b202-5e35a6eb392d/3084741254.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65911e42-9b04-468e-9686-68855f7bd9c6/jebefafetugozuxevagedudu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cfd36df3-cc7a-42e1-ab09-a0449a6a96df/how_to_change_2gig_motion_detector_battery.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78d297fa-fa91-498c-80bd-e8f53257d236/40753436615.pdfIn PDF document text
    • https://s3.amazonaws.com/wanalovum/sample_nonprofit_budget_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/285f8c69-4c2f-4196-abaf-6616c0bd6515/motedimexizawomukezizo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3896daf3-23c0-470e-a248-92d037c261cd/husky_2600_psi_pressure_washer_wont_start.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d572672d-2191-4c82-8eef-ef0e518206f7/web_hosting_companies_in_delhi_ncr.pdfIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/user_acceptance_test_results_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3aafdd2e-148e-4dc8-8ffd-3b468780e6b2/read_the_bible_in_a_year_planner.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_off0000ea8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA8A 5444 bytes
SHA-256: c0175c00b3aec02cbced4fd40366e7ccdbdcca7cac6d151a8a802b62253b7892
font_01_sfnt_off0000fcee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCEE 10316 bytes
SHA-256: 3dca72d3d63b26e2aa69155b352dcc448be4d105997c4b5b7dc8398f34ac2df7

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