Malicious PDF — malware analysis report

Static analysis result for SHA-256 951367d46b8c6c17…

MALICIOUS

PDF

69.4 KB Created: 2020-11-29 14:44:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 9d6f018f684e2b23480c367f395ac25f SHA-1: 70d8355c827f9e5681d09b9e6aaee0da42be79aa SHA-256: 951367d46b8c6c178f6f22254f309a59fae0c703b270e1fd166c8b0e6066436e
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a URL that mimics a search engine result, likely intended to trick the user into clicking it. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. No scripts were extracted, but the embedded URL is the primary indicator of compromise.

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://traffine.ru/strik?utm_term=what+does+smfh+mean+in+text+language PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369146/normal_5fc2633cb3642.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409998/normal_5fb5dd4ec3e9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465025/normal_5fbd80ebb2d9f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367622/normal_5f8e64980160d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421471/normal_5fbd7b3cb7315.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/d67f4d07-1682-46ee-b63f-a9d724cc6f3c/running_man_204.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ccd7cf0-0c2a-48a4-8a53-206598601cd5/wimudamigasavisudaja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2cc69752-aea1-4a2d-9f0b-31f37d64d5d3/60852404473.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/eros_golden_disc_001.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/138a9ccc-62ba-4bef-be85-8b8944a4a33b/goal_tracker_thermometer_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb1b8b36-6d64-460b-bad8-9641933534d1/10139619231.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f644eb88-2274-4ae3-b88f-7c77b72f1302/5557032350.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46ffdd22-bd88-4643-a8bc-6519a6096c4f/mechanical_engineering_resume_objective.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0efa2bdc-a8e5-4e78-8fef-0687abd9ed86/nezelozinaraka.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 3

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_off0000d150.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD150 5304 bytes
SHA-256: 07473f8076cf9c4f650f247bc2fcde1d42688ebaed46357272bbda44ac330fc7
font_01_sfnt_off0000e352.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE352 10948 bytes
SHA-256: 8b7f207636b276a289b5883af3481a13a0736e0f396423c29be5a36d657f37a6

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