Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff1227c8966794ec…

MALICIOUS

PDF

116.4 KB Created: 2020-11-22 03:43:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 63acddec1c93b7f19cf0b82185965324 SHA-1: df18f1a3a62503766278e6f46316fbd5bb375fa8 SHA-256: ff1227c8966794ec60aa5c981c2535c1655a5c005584eda5056b0e67dc82d964
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://trafffe.ru/123?utm_term=revised+draconic+sorcerer PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4425728/normal_5fab891b97a12.pdfIn PDF document text
    • https://faworufobideped.weebly.com/uploads/1/3/2/6/132682851/sijowajegavefupo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450730/normal_5fb8bd9730218.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390055/normal_5f91c6472d742.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376857/normal_5fa559b796028.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489244/normal_5fb40633217b1.pdfIn PDF document text
    • https://bavobero.weebly.com/uploads/1/3/4/5/134585538/5896867.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453914/normal_5fa242e47ba86.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/433a3a89-5c76-4b4f-b7a4-0301fbe3698f/gixasiwusidumamaru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b972df0-8432-496b-8de7-d87c7e01675e/jewis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a45854a-0068-4acc-8546-ba8ca69bdd6d/fundamentals_of_nursing_8th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d8f2ac5-119a-4df4-b707-7233c8a34eef/army_mission_analysis_brief_example_ppt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c178962b-2306-4f53-88d4-f7292cb948c2/86540463109.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/tugadixonobirigujujozixoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c97a8a1b-c6fb-41a6-af67-30e9e65951a0/csgo_copy_pasta.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 8

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_off00018eba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18EBA 4968 bytes
SHA-256: 2dd451606dc2815bc022669d8d3b03e4045e184719f19124609e16ded4d2e126
font_01_sfnt_off00019fb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19FB4 10644 bytes
SHA-256: 4425c9dbe2c9981d3f38b6ce1a27d5098faab2b074c6218feb08e03f5bdc5e67

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