Malicious PDF — malware analysis report

Static analysis result for SHA-256 564bdb84be721ff9…

MALICIOUS

PDF

61.9 KB Created: 2020-12-22 21:04:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 08f174dfef0169a5d849996c1bd035ed SHA-1: 98958b97ea180706b4e3257ebdeba812bf928f89 SHA-256: 564bdb84be721ff91baa52666ff2f1e5ee80c21087ca88f9355b4ea35c77a0fc
96 Risk Score

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 0.9996

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://trafffe.ru/123?utm_term=listening+lists+for+auditory+bombardment PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365542/normal_5f8abfd5eb717.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lukepepe/gosudidojipuxoxelujos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25d3824c-f204-4a2a-91ee-648209c73954/wetererude.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49ecdec0-fa58-477e-b08d-92f780605281/jdm_license_plate_frame_australia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9649d525-8247-4882-88e2-0e6e175d9eb3/bad_girls_club_season_17_episode_7.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87388c32-ab69-40e8-ad39-d744ab71933a/corrado_malanga_libro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13b63457-ac4e-4460-8c6e-c97241dff9b9/the_devils_notebook_espaol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0398b1de-6eca-4ecc-84c6-c858636387f8/libowexo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa7afc2b-eeba-4c0f-8bdd-017f7ec0b88c/xatovimodumoboxelakog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eca33fb8-4f2e-4b70-a556-599936eb45c2/gupesakebuzal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75fb3221-2a27-444b-ac3f-d4983cc9df05/87986271174.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa975724-9ea6-4fc6-a6e2-092cfa3a7e84/wonder_nation_size_chart_boy.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_off0000b578.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB578 5412 bytes
SHA-256: a5bfdfbac7b309852c51b3aaa0d4a04da24b8c0ffca43b968fe5e2594773d6fa
font_01_sfnt_off0000c7d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7D5 10444 bytes
SHA-256: 62206f169d1427ba89b2bbfcf37f03a59e8f07b1fff77010b5e850622e4ebdf0