Malicious PDF — malware analysis report

Static analysis result for SHA-256 589553480a803257…

MALICIOUS

PDF

64.6 KB Created: 2020-11-23 10:13:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 649c116cf11d622c0770eba1c68019d1 SHA-1: d7ea1a19c6c3e1d7aa632cb52fc4063d4b0dc357 SHA-256: 589553480a803257dd52086a8771076e8e0ce9cd22dfbbf8a3e38a4956050c8c
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 0.9995

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/123?utm_term=plural+of+money+noun PDF link annotation
    • https://rozolabo.weebly.com/uploads/1/3/0/8/130814594/9807867.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366668/normal_5f8b3160ccf7f.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/544bfa5a-3f64-47a8-a65e-254d521923bb/82041821512.pdfIn PDF document text
    • https://s3.amazonaws.com/kosipefojaw/bekokonixivole.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44d537fb-8379-4cca-b345-892ffcc3d004/16170662987.pdfIn PDF document text
    • https://s3.amazonaws.com/kudefem/lozomef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dab33df2-9a84-4c8e-aef8-179bfd201514/wedamufixejasu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c450fc2d-72cd-46c1-8666-07c485ba1697/tejulozaxunibu.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/86030606468.pdfIn PDF document text
    • https://s3.amazonaws.com/xidulumexi/download_gangstar_vegas_hack.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_off0000c220.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC220 4840 bytes
SHA-256: 11a467cffa4f9f5d6bac6b07e4120adcc9a96d9ca9eca569c5c33930951e3479
font_01_sfnt_off0000d287.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD287 10524 bytes
SHA-256: 66a6720c4c03751373f9828e6b02ee246557efb3d6b8d8a653deb54dfa58a148

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