Malicious PDF — malware analysis report

Static analysis result for SHA-256 063b5a4f77ddfaee…

MALICIOUS

PDF

76.5 KB Created: 2021-02-15 20:53:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: c5141d45073b5a99d5083b58ccab0afa SHA-1: 71f0e1cb34ec56dd0a8886efe0411fd1cabc6479 SHA-256: 063b5a4f77ddfaee5a85d739147e58b3bb118703c51f334cb81a2516e9075381
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains text related to the embedded URL, suggesting a lure to trick users into visiting the malicious site.

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://jottigo.ru/strik?utm_term=best+ir+extender+for+cable+box PDF link annotation
    • https://cdn.sqhk.co/gupikekarobo/WZVhcgj/8156583761.pdfIn PDF document text
    • https://cdn.sqhk.co/texivewa/ggiiipz/xudekal.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467910/normal_5fc72873de4ad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409102/normal_600b4b8710802.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490724/normal_601ca7c4250d7.pdfIn PDF document text
    • https://cdn.sqhk.co/jakufomego/OjeBydZ/women_s_world_cup_skiing_live_streaming.pdfIn PDF document text
    • http://itabody.space/55635759540zy09r.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421970/normal_5fed4e68ae2c8.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/mukut/45960097304.pdfIn PDF document text
    • https://s3.amazonaws.com/gifiz/diffusion_and_osmosis_lab_report_results.pdfIn PDF document text
    • https://s3.amazonaws.com/mamibis/wabazuguweverowuvotimam.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/chiltern_house_school_uniform.pdfIn PDF document text
    • https://s3.amazonaws.com/rafiralexezol/72162292994.pdfIn PDF document text
    • https://s3.amazonaws.com/bupijila/imagenomic_noiseware_32_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/c_sharp_interview_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/medical_certificate_format_for_admission.pdfIn PDF document text
    • https://s3.amazonaws.com/dikobepibelun/maxima_clam_care_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/joviziluzizipifigixi.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_off0000e0c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C7 2952 bytes
SHA-256: 4ae8477714a47bd49fe48b3ed118879cf3fad5a74aa3a55fe419efe34f8c1ab9
font_01_sfnt_off0000eb5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB5C 5272 bytes
SHA-256: 6b705929ee7c254c86cf8f1bfe78fe682639dfb01ae3639fe90b625646e32855
font_02_sfnt_off0000fd5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD5F 11768 bytes
SHA-256: ccc5cb5eccace7b8bc9d5bcd23e387719c09dd5d415a5eeae51a31fb65731fc3

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