Malicious PDF — malware analysis report

Static analysis result for SHA-256 b038114e27cef9a7…

MALICIOUS

PDF

59.8 KB Created: 2020-11-14 02:19:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 7d397bbbf9977c54f9f4f9ea87505a40 SHA-1: 116bbcebfe5483db68ac4a4422cf86ea53ea10ef SHA-256: b038114e27cef9a70a3ba8b86a2975794c8843c2f95d44d15a7f0009e51cd791
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 0.9996

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://traffine.ru/strik?utm_term=spectrum+math+grade+3+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366057/normal_5f8ef9bb29761.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417656/normal_5fa71bbbc855a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369327/normal_5f8a84683a83c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452839/normal_5fab268f14af3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367643/normal_5fa6955e74fa5.pdfIn PDF document text
    • https://gazisaki.weebly.com/uploads/1/3/4/3/134371182/pifaz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387806/normal_5f94a33585ba4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366389/normal_5f874337688b0.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/samopakamefap/tevoge.pdfIn PDF document text
    • https://s3.amazonaws.com/pokixovuxik/25442045583.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2df3e80a-f4d2-4e7d-999b-0cb5da2b59d7/why_do_people_join_gangs_for_protection.pdfIn PDF document text
    • https://s3.amazonaws.com/fusidejebi/pagojapitujarojaperubuxek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26565308-be11-46ef-8010-c91130e505d5/96875263151.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_off0000afb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFB9 5628 bytes
SHA-256: e64822cf6d879899167a99bbc2bce13bd0e5c7fd8a3b6a4081dd68ea5b1e2679
font_01_sfnt_off0000c2bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2BB 9408 bytes
SHA-256: 428de9214157d1f93d41178cb45d59ecc5d9d3ad161cd7d5eb191370c8e7591b

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