Malicious PDF — malware analysis report

Static analysis result for SHA-256 1003eacc22617952…

MALICIOUS

PDF

65.9 KB Created: 2020-11-10 11:54:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: b7d1a58816569917ae6cf11541087499 SHA-1: 25e3cf338bdeefeff36e3392949ba7e47c1c9736 SHA-256: 1003eacc226179524ee117f43fb585a8f10e14d53f7d556710f898e36c23439e
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://traffking.ru/strik?keyword=350z+service+manual+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4402721/normal_5f97e25040542.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413347/normal_5f958c9a7cda8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368222/normal_5f89753196c16.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476925/normal_5fa740d253431.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379220/normal_5f964641809be.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369511/normal_5f8b729422fad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405652/normal_5f9e731848e53.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367950/normal_5fa7eeafc80ee.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/american_dog_breeds_name.pdfIn PDF document text
    • https://s3.amazonaws.com/jivala/97149953098.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_off0000c4ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4AE 5472 bytes
SHA-256: fc67b32417d946a8b814059edfd791924c6c07dc9b5fc4fb99f13ac282074684
font_01_sfnt_off0000d747.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD747 10648 bytes
SHA-256: b055a48a32a801fff3874da945710aafa9a6776c9df9dad0b37b705ac108fd19

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