Malicious PDF — malware analysis report

Static analysis result for SHA-256 bec482e0f82fdd02…

MALICIOUS

PDF

64.8 KB Created: 2020-11-11 02:18:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 28024d52767b8995e2e0fdd5da91d503 SHA-1: da657eb1e0c6b5624ad9817adb985952270494fd SHA-256: bec482e0f82fdd029ab313393d3c018df42e173abe1bf0b19047add05421920b
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 0.9979

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://traffking.ru/strik?keyword=bailey+johnson+jr PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4394077/normal_5fa79857d7248.pdfIn PDF document text
    • https://fidurelofomus.weebly.com/uploads/1/3/0/7/130740547/jipuzawa.pdfIn PDF document text
    • https://xanugobolenaz.weebly.com/uploads/1/3/4/3/134371028/gagimidepijuruf.pdfIn PDF document text
    • https://roxoxurapu.weebly.com/uploads/1/3/4/3/134307884/darog.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/8569a60c-1bc4-49d1-9f74-f0074f2f451b/28975145615.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c5719a9-d8e5-41b5-8638-ce5ce4f731c4/where_to_download_halo_online.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/33634945682.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/84541811648.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/tengo_ganas_de_ti_pelicula_completa_espanol.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_off0000c3bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3BC 5000 bytes
SHA-256: 4e3ec3d23ea47bdffc1aefe857b9f7ff917be2a9764eda8254a89de0898387d0
font_01_sfnt_off0000d4bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4BB 10008 bytes
SHA-256: a9814e2a1a0570a3a564a83bcc5edf32c4afe7a679112611c26649169f960920

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