Malicious PDF — malware analysis report

Static analysis result for SHA-256 194796e05b82bf7b…

MALICIOUS

PDF

65.3 KB Created: 2020-12-18 01:19:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 8bed9866b085d36b461e0f57ad52d6d3 SHA-1: b6137ebd1e36ac8d6cb37ade616ac6fab70c7789 SHA-256: 194796e05b82bf7b8fa2207b9de498dd339215055fc883627932f8a151a72de4
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL that leads to a suspicious domain, likely intended to deliver a secondary payload or redirect the user to a phishing site. The document body, though heavily obfuscated, appears to reference financial information, suggesting a lure.

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://traffnew.ru/aws?utm_term=bond+fund+of+america+fact+sheet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4476750/normal_5fd5fbe9a0c9b.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/63a48c9d-4bfc-4ca7-aa4d-174d9f4aec44/38971777108.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0cd3f72-3cb8-42dc-898d-18c156f6506d/baek_doo_san_tekken_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/470bc1c3-fbba-4ce6-9313-c0fbe09c48c2/warisileliluku.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd3e233140135cab604c97/1606237732581/labevubiguligum.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcfe3564be903ae6409521/1606221367582/macaron_class_near_me.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee6e993d-c97b-42fc-8628-2e142cf00380/doxoje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/064a1f04-913d-4698-8288-bb778a9be37b/34676632720.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5afe974f-1638-48bd-9a0e-84c1b42c1013/65535795763.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc8ac419-c096-4638-8f37-624faece503f/68814648167.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83a2b2e5-0646-450b-afac-4d73d25375d7/fowuwumumi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6ad207f-1c05-4318-ba2f-4c9f7fb16635/read_receipts_on_discord.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_off0000c48b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC48B 5280 bytes
SHA-256: c276bdfb5560d0252c77c79e4a9c68e81e08eb2677d506347acfe5e441cb86fa
font_01_sfnt_off0000d655.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD655 10172 bytes
SHA-256: 6a5566d42d1d03f1261ae7eb3f6d075349a164c7bde8cd5942184a609e0bedab

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