Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d4d1af4cfa8a022…

MALICIOUS

PDF

67.4 KB Created: 2020-11-24 00:05:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c1d55e1afe0e07cc8edb950f9a3a1f56 SHA-1: de3e64dd4b52374cf6619fb7ee81d295963649cf SHA-256: 2d4d1af4cfa8a02254f2c66e591d9fbd429ac8fe63762c374cabcb1bbe52453a
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 0.9998

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://traffine.ru/strik?utm_term=india+worksheets+printable PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369796/normal_5f894ef51b6dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368972/normal_5fa06afa806e3.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/jokotaziweluge/akhenaton_jones_arrested.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57673b05-bc9f-4978-b922-2fcddab8ffda/denon_3200_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/costeo_absorbente.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40b0ab8c-ec97-4bb2-9590-60b5699e4733/nakomaxepimogaxezoloko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a7ab64d-761d-4111-beb7-2addc7a5a97e/logan_square_xsport_hours.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6c3f777-3111-4772-a5a8-2c8e733e39b4/83375392658.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34766ae6-a806-4e99-98a5-ba4222aa42b2/sevigoxibaxufamixomum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2478d712-47f6-4cc9-a2ee-fedd66881070/xevasetitufafogipukoj.pdfIn PDF document text
    • https://s3.amazonaws.com/juxatop/30856607902.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53840aa6-6b6e-4147-8422-493944d253b0/zegugutugezogigutuwuw.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_off0000caaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAAA 5280 bytes
SHA-256: 39bae110753bbe94d325552af1fc8726115060147dc735b8157cb7bf4703b24e
font_01_sfnt_off0000dca4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCA4 10560 bytes
SHA-256: f277fb37c72acc415f7ed2f401ec3bff7665181430524ecd0018e63ae4b5d842