Malicious PDF — malware analysis report

Static analysis result for SHA-256 b39d1c1c313352fe…

MALICIOUS

PDF

57.2 KB Created: 2020-11-26 06:22:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: aaa7ea4e4b160a869d449640bd90aead SHA-1: d787ee65a0123172f2e31059b172ae10b3d50848 SHA-256: b39d1c1c313352fe29c562672a936b5e7d9e055f587830b96385b00674aa2072
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 0.9994

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=the+defining+decade+francais+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384463/normal_5fa42b0eaf608.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450731/normal_5fadd07b08af8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381302/normal_5f9eaf95d7221.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455380/normal_5fa8d883b489e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388620/normal_5f97e9a0bf114.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368746/normal_5f9001f42a383.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485004/normal_5fb764c08cf4f.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/e98c7098-da59-4d28-969e-bd9785ecd0cf/sozifirisetekimexarogumax.pdfIn PDF document text
    • https://s3.amazonaws.com/minegikukovel/pivisusufagakogumolifa.pdfIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/blaupunkt_sbw-_01_user_manual.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 1

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_off0000a768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA768 5332 bytes
SHA-256: 469a956e7d8085f5e92239725d6d60eab1e1654ac684ddf448f59a076e36eb67
font_01_sfnt_off0000b989.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB989 9180 bytes
SHA-256: b513a471c2df79400ecb6b8a61262dd627f81e621d0b14738131920e9c9c15ed

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