Malicious PDF — malware analysis report

Static analysis result for SHA-256 f30fe33656de890c…

MALICIOUS

PDF

60.0 KB Created: 2020-11-25 09:39:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 6e045983e273851f468862de1c1cd167 SHA-1: d472aa2b65a720cc04553bbd8c1db82d9c633466 SHA-256: f30fe33656de890c2c27e699b39b9c14b1d07470d73a8b430d03feb54a805c80
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 0.9994

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://trafftec.ru/123?utm_term=my+sweet+lord+lyrics+david+crowder PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4448558/normal_5fa378fa716aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459162/normal_5fbc60dfafa39.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495065/normal_5faffd215c300.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380530/normal_5fabc1ae53046.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/f8426461-af9c-437d-8178-253d48e167f0/3349144009.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83b97a04-7ba8-47c6-8eda-8e91f791d0ac/25677197946.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/tugojopegobijasax.pdfIn PDF document text
    • https://s3.amazonaws.com/fadobirak/golokuxuwe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e744d4a-d6bb-4fbf-b72c-f3e201a8a79e/57695307506.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/star_wars_battlefront_2_inferno_squad.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_off0000ae7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE7E 5192 bytes
SHA-256: cd328edfb69b64990d264c62c595b5f0e4321c467e06c1daf58c7e446acf4947
font_01_sfnt_off0000c05e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC05E 10324 bytes
SHA-256: b79f1df1ea505f1a6768cf623ffbaf3f9edde625e4c9e22d98bd93f032b14eea

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