Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d378f1fd23729eb…

MALICIOUS

PDF

70.2 KB Created: 2020-12-09 17:57:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: ee948922027a0ed4f76ac28b774bed55 SHA-1: d67792d0234f3a5e840a0a744ae50f5da4b137cd SHA-256: 5d378f1fd23729eb9ae585f690190fdbd9d665d55aa9c26a4becab8216ac05f6
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://traffnew.ru/strik?utm_term=th+8+war+base+anti+3+star+with+link PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4495694/normal_5fbcbd5c37b2b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487626/normal_5fa9ce427ea2e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408881/normal_5f9bac63dc4de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365562/normal_5f872282a5255.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366633/normal_5f8f0021813b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417405/normal_5fa877b33bf8c.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/4a9e8bdb-0d0b-4d63-96ec-57eeca0662b1/63900969474.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfdd38a3bf4b14aba341ea/t/5fc15a8d5147b1480465f343/1606507150757/alice_green_john_green.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc78f6b9ea50d4120a246cf/t/5fca75595846d15d25f4f82c/1607103834974/52899795925.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e92a0a2757459be2ed0b/t/5fc6a109fa04221c7109a599/1606852873963/15877461502.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4bfca24b06a7eb3181a05/t/5fc81db843b29e7a5ae83deb/1606950329207/wallpaper_hd_keren_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6383a5ca-9651-4b26-a1c5-7c01d5e9156f/72085799728.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_off0000d6c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6C4 5376 bytes
SHA-256: 894ab668f0539709f7b563f41d82e2f209236ef52475ffcc4c8ed58f5af85e61
font_01_sfnt_off0000e919.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE919 10300 bytes
SHA-256: 44c1f63f373a7feb742c1c052b0caa0881a3ee7ca68894da4dc361df79919457

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