PDF static analysis report

Static analysis result for SHA-256 b51dcd92f1ed0839…

SUSPICIOUS

PDF

74.8 KB Created: 2020-11-17 02:46:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 594e4c7426e65cba530dce11b7f08f4b SHA-1: 22dc6ebfdc25ab71b9935b5fb720113b08584ca0 SHA-256: b51dcd92f1ed083924ac74ac67bdb698f2c934a5a0be9b0cc22f300538b3511e
36 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 suspicious by 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 0.9998

Heuristics 3

  • 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?utm_term=how+to+do+soapstone PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366397/normal_5f873236917d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367650/normal_5faee657f2d2d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478669/normal_5fac5c1d3adf9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392462/normal_5f97b2fbe132d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458854/normal_5fa2e591bacc8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465688/normal_5fad4a0f26b1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446283/normal_5f9fc02093605.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/d8b5ea8a-bf96-4628-a809-e98bc60410b6/palup.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/buxafizujak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf83f18e-b4a7-4465-bf04-1dfcef57f8b7/69019926395.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d3fc1eb-b9d0-471a-8bc9-7ff2b05c5abd/fofikeguroxanusuj.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 1

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_off0000e969.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE969 4876 bytes
SHA-256: 4e29f2e7aec73686c05650061331cd26fee3af4372312dba04a8f2cac7b19cbf
font_01_sfnt_off0000fa24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA24 11040 bytes
SHA-256: 2b972b246b11db548c4366ad1d4dd16ad35c50971869770cad0d627dc4753a30

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