Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d9134b3643ac35f…

MALICIOUS

PDF

171.5 KB Created: 2020-11-11 05:58:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: ac622ed34f53989f06a62bd42920a84c SHA-1: 4378c8cdb06425ef10fae315f4abbc0739894df9 SHA-256: 9d9134b3643ac35f51ad0a49465f1f5c1cfa6660e5d3dc9cadfb5b4fd4fe1cbb
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 0.9997

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://trafficel.ru/123?keyword=kane+area+elementary+school+pa PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393483/normal_5f903959284a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366374/normal_5fab4f8829390.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391319/normal_5f92986341265.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445731/normal_5f9dfd2e81e97.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375514/normal_5f93782118e95.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366034/normal_5f86f8931cc60.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372087/normal_5f8d99618f39c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372371/normal_5f8a56583b1d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369782/normal_5f8ac4cc147e7.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/3381acb3-8fcf-411f-9f06-20befe98084d/86683583380.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/kixifiwuwevatuwikuxez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9b45d76-3a3a-448f-a7ff-2f3978bd96d3/43723062349.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4656583-a51d-472f-b48f-a131bdb515b5/how_does_mentalist_magic_work.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5a20ee8-45bb-49a6-9973-869de903d8bd/84736189862.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28169744-3466-40cf-9589-22eb576dbc05/the_tallest_invader_zim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a75a6502-2276-4bd2-84b4-3290a0716a56/83449655701.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6d4d2a3-f8fc-4d45-898f-b4add7c40376/85281545946.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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000269e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x269E3 5244 bytes
SHA-256: 2a3089fbeba2c52ab0611f9246387000f39e73650c70a15ff17aeba800d520d1
font_01_sfnt_off00027b9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27B9C 10956 bytes
SHA-256: 4bb5b40cd6c93218c1247bb038c92f6434304ceb978ec6f96526f890ec7cecfd

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