Malicious PDF — malware analysis report

Static analysis result for SHA-256 a204d8e106649657…

MALICIOUS

PDF

73.0 KB Created: 2021-03-03 08:46:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 6fefce76a29c25680d1c54d5fdca7cbf SHA-1: ef4fb948b52325cd57b131ff7a36626852dc16ce SHA-256: a204d8e106649657c137fcb2be0cae74bafe2234ae2dae730f7936c462ca6ee9
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by ClamAV as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains keywords related to product replacement, suggesting a lure to trick users into clicking the malicious link.

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://druttle.ru/strik?utm_term=stanley+fatmax+powerit+1000a+battery+replacement PDF link annotation
    • http://gekifek.scienceontheweb.net/metiwisivakafefiwatid.pdfIn PDF document text
    • https://cdn.sqhk.co/kosadara/7FUfUif/9167022544.pdfIn PDF document text
    • http://dupamineni.medianewsonline.com/how_to_process_unresolved_trauma.pdfIn PDF document text
    • http://pirewarekow.mywebcommunity.org/does_alexa_work_on_roku.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465018/normal_5fd62840b054b.pdfIn PDF document text
    • http://gejejasofubi.mywebcommunity.org/26534246061.pdfIn PDF document text
    • https://cdn.sqhk.co/wodelaganav/pE7aHgi/gemojumuladobatitimimo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491152/normal_6005f377afc7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418791/normal_5fd60f02ca1be.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/xukirizugukugi/96547496307.pdfIn PDF document text
    • https://s3.amazonaws.com/difigomisosak/arrow_gif_free.pdfIn PDF document text
    • https://s3.amazonaws.com/najipavez/ludavitevivibopopu.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/flaneur_sheets_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/takateg/organisation_structure_template_ppt.pdfIn PDF document text
    • http://zupitatip.atwebpages.com/doxefipivozaxodi.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_off0000e0d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D1 5680 bytes
SHA-256: 3c9c6025af9f0e04ddf7df91e881d70bbf7180373d096b985d3cce6642d3d202
font_01_sfnt_off0000f439.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF439 10124 bytes
SHA-256: bcc1df1d8a41ea984472a14c401e943f30abf16e7f84254f65a8cda7c13d9b74

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