Malicious PDF — malware analysis report

Static analysis result for SHA-256 69ac02469e8338c6…

MALICIOUS

PDF

62.7 KB Created: 2020-12-17 02:27:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 2017f980645137d17799e376a174a7d3 SHA-1: 12cc70c2846fd4363ad57f58f0c714a6d01c0b0e SHA-256: 69ac02469e8338c62808d6c432e2ef1b4d2271f766df83abc501e6b6d6ae396a
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The sample was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to exploit user interaction for malicious purposes.

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://trafffe.ru/strik?utm_term=peace+lutheran+preschool+waunakee PDF link annotation
    • https://kuvenamowafave.weebly.com/uploads/1/3/1/3/131379608/rugope-segabom-berivuvuvazexi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472783/normal_5fa66ab6f3fe8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393624/normal_5f9db698e384c.pdfIn PDF document text
    • https://tumugisoluxadez.weebly.com/uploads/1/3/4/6/134601474/dijepizanimobizubepe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374979/normal_5f89a42677358.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418365/normal_5fd39c336f530.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412592/normal_5faf28eb665fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480750/normal_5fbdb928233a5.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/3b5590d1-8d1a-4972-b941-8b4e9b0fc601/rc_fishing_boats_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/lurutopobi/xonezojixek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3835da5-8638-417c-b7c7-585b32ece3ed/turning_point_services_locations.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64bcf83f-a4d0-4dec-a043-10320578899c/juxuzewizamipudulitagabi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2173a483-d06c-4d4c-9973-81010f6c9fd9/28808894978.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_off0000bb29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB29 5176 bytes
SHA-256: 5c0512217ef23fee864b8f2e46100d719ffa32d9e853fbf8a30162e512cce079
font_01_sfnt_off0000ccc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCC8 9772 bytes
SHA-256: 5ca28e83e7ae659fad42fb8d7ee04c794c05ff63f4fcb0de30743624e9f056ca

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