Malicious PDF — malware analysis report

Static analysis result for SHA-256 689b60ef264de42c…

MALICIOUS

PDF

72.6 KB Created: 2020-11-25 03:16:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 6e198348633c4ed14ac9b897f2b8a84e SHA-1: bcf808d89040aa8a750441b781b1d82615d6ba46 SHA-256: 689b60ef264de42c01015407e4ef0b0c8dce5d60f77c318a522039c946ef6df1
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically identified as a phishing trojan. It contains an embedded URL pointing to 'traffking.ru', which is likely part of a phishing or malicious redirection scheme. The document body, though heavily obfuscated, suggests a lure related to a product, aligning with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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?utm_term=aloha+breeze+tower+fan+remote PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368977/normal_5fab1c26cd163.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449781/normal_5fa1a13de6ca4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450632/normal_5fb2f0f70f936.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373526/normal_5fa4c29a7c333.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454042/normal_5fafa418a1a9e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404514/normal_5f93783f9d1da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376371/normal_5fae0804b151f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381971/normal_5f9a5e8e8fb79.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374978/normal_5f89d6e5e8b8b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444646/normal_5fa1c24673a53.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482405/normal_5faf4f1a2533b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368242/normal_5f8f546c07e60.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/7037448f-3da2-4d9c-b967-0386156bff97/accounting_study_guide_6_part_3.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/33332640182.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5cc11749-0c9f-43d0-83a2-e11633bb2be7/dunebajitunogopuven.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3D0 2900 bytes
SHA-256: 40ce0bc9b113ef031639604f059b60aa9f1e41b097d60e75bfbf620cccc66306
font_01_sfnt_off0000de14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE14 5100 bytes
SHA-256: 3d9fd3ae7ecabc8b6dd476abd37863d1e124bdf6904e3435625e8aac6bdd9cab
font_02_sfnt_off0000ef5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF5A 11224 bytes
SHA-256: 2f4b5b23ee24784da950cdae3b0141f7a414f132a914afc282c53b498194b68d

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