Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9e8b395641bf75c…

MALICIOUS

PDF

70.8 KB Created: 2021-03-18 10:11:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ac0ecb7a57ab0368dd556c080721da92 SHA-1: 986c3ac219003415eeb955be3d1da7925773daca SHA-256: f9e8b395641bf75cc35f2e48928513c3387eb4c1f521781b59dbeeafb3254309
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 0.9991

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/strik?utm_term=roland+spd+30+manual+espa%25C3%25B1ol PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4368265/normal_5fef97ec2009c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366956/normal_604de4ba247a7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420747/normal_5feccd6fdebff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401971/normal_5ff54dd955e51.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/dc391508-12db-4710-9c78-ac70b73819eb/why_wont_my_hp_envy_4500_connect_to_my_computer.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaporam/ziref.pdfIn PDF document text
    • https://s3.amazonaws.com/wupuxus/jobuwomumukevaligoguxuwo.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/36447359021.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d706f34-1eca-499d-a9d3-b17e008a8415/bengali_to_english_dictionary_app_download_for_pc.pdfIn PDF document text
    • http://xunudijumo.myartsonline.com/80331695127.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/67391965701.pdfIn PDF document text
    • https://s3.amazonaws.com/xoguwavosuje/spread_spectrum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25aafb96-8a86-4818-a30d-06a264bb5497/21560559944.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee222320-0b6c-4f51-8dff-52f1eaa8fe79/peg_perego_primo_viaggio_4-35_assembly.pdfIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/wegitaz.pdfIn PDF document text
    • http://pojozija.onlinewebshop.net/autocad_2020_book.pdfIn PDF document text
    • https://s3.amazonaws.com/xiwevitox/7061472022.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6427f51f-4416-446c-a0b1-9dde9891e0d4/taurus_g2c_9mm_extended_magazine.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b36e90c-7c10-4cd3-9498-e2df9e4e6a9c/81587388347.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/pc_games_offline_installer_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/893fa89b-ee8f-4787-8a92-7f01908f2dc0/how_to_turn_off_quadra_fire_pellet_stove.pdfIn PDF document text
    • http://solejow.myartsonline.com/65068935760.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84c2da8e-6724-40fb-9203-4c2383e90cd7/96260653442.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7dc79039-da0b-4d2d-a21e-aca30e0a87df/gasutipofuk.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_off0000d440.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD440 5532 bytes
SHA-256: 0ad7a7b5e13012fcffbdd5f22d84837c3fafe1cb1c660f1c2c0341871b88aa56
font_01_sfnt_off0000e6c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6C1 11064 bytes
SHA-256: 5bbb67298599c0c33d07a465b785cb9a7aa5e996e9a6672c1f2e71672cdbdb56

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