Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e220c38d79d87b9…

MALICIOUS

PDF

66.0 KB Created: 2020-11-22 01:01:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: fcd64df8dd5dc69d8682a93cc6b42363 SHA-1: dd532ff5d22beae108ac980e9ae99c2747868ed0 SHA-256: 7e220c38d79d87b9440b88037ded447409f8791bfa4886b9d5260c29f2647bb7
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=coaching+philosophy+essay PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4410433/normal_5f9379b2e1361.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416316/normal_5fa26c5f51941.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403819/normal_5f995a508e78c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385620/normal_5f8d67544c011.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/fbb34513-7fb7-46df-8c5a-1b89cc058bd0/vigefosonizuxitemolubagor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/694cdf2e-8985-4710-9b9a-ab2f6b665ec6/20380079521.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65eb3972-2c53-4966-a62c-ca52992f086e/yeil_deniz_sen_bana_yangn_ol_efend.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aef0ecc6-fcd3-4494-912c-748e784066b5/pevexaneberemajukivumaxu.pdfIn PDF document text
    • https://s3.amazonaws.com/juxatop/old_flames_lyrics_chords.pdfIn PDF document text
    • https://s3.amazonaws.com/wusone/a_christmas_carol_picture_book_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85342092-5793-4f50-82d6-5dfc9adcb425/9733349248.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ae64e37-dc28-4ed4-a209-a29076ec64d5/new_england_patriots_colors_nautical_blue.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0097440-30f3-4c17-9de5-86b007de1140/pavox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d067e44-95a9-44b1-b29a-78415205438a/55904731430.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_off0000c62f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC62F 5104 bytes
SHA-256: 514f01b230d564963a92e31e06e872b02f43b54a66a659030ef7df7a0ee12503
font_01_sfnt_off0000d791.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD791 10656 bytes
SHA-256: 1a76bdae1b34c4280501c138abb417b404fbf648a70392c6ef9469792337261c