Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4b1570d3956d559…

MALICIOUS

PDF

74.9 KB Created: 2021-03-11 05:15:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 163d1ec7884121e7e505ffdfad010644 SHA-1: 30411f8d789f88a377593124f1bd1a122d1b295e SHA-256: b4b1570d3956d559de2e48da189df9a7089ecc38315ad5618a0830d20b126962
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/strik?utm_term=arby%2527s+menu+turkey+cranberry+sandwich PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4428039/normal_600fbbabc2c06.pdfIn PDF document text
    • http://heliusdesign.ru/xurepodadagiwadutulobodiuka5p.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445889/normal_6039070e598bb.pdfIn PDF document text
    • https://xanipopig.weebly.com/uploads/1/3/5/3/135345317/7931484.pdfIn PDF document text
    • http://hackins.site/74749552273p7xbt.pdfIn PDF document text
    • https://sarejazaxixosib.weebly.com/uploads/1/3/4/6/134633098/9f72f00a443a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454967/normal_60261a6068c66.pdfIn PDF document text
    • http://idealica-tufficiale.website/centipede_from_bugs_lifep6vtu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374368/normal_5fe43340889c3.pdfIn PDF document text
    • http://adyga.site/ludabejimarafiganifasadezwc1bk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jipesofu.rf.gd/4613648433.pdfIn PDF document text
    • https://dbaf0f33-3d36-4a74-a587-899e7473781b.filesusr.com/ugd/b914b5_7c848785ce474977b2049a03796c9f8c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bomupi/90731422430.pdfIn PDF document text
    • http://desiwafinu.epizy.com/cloudformation_validate_template_yaml.pdfIn PDF document text
    • https://s3.amazonaws.com/wujanozo/90817022173.pdfIn PDF document text
    • https://67dec473-0a9c-497c-80b1-62a4c84c5046.filesusr.com/ugd/0aab01_64d9aef2251e4d379b36b9846a67fc3b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/bloons_td_5_free_shopping_apk.pdfIn PDF document text
    • http://wapudajikipidem.epizy.com/south_movie_480p_mkv.pdfIn PDF document text
    • http://vakewexapenox.epizy.com/bbc_weather_report_chennai_today_and_tomorrow.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/b_tech_1st_year_cse_books.pdfIn PDF document text
    • https://s3.amazonaws.com/sojuravewi/nijukazigewuzis.pdfIn PDF document text
    • http://duximepameme.epizy.com/the_summoning_kelley_armstrong_summary.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_off0000e68b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE68B 5568 bytes
SHA-256: 3fdb8c0b76601212076a0bd7d614c8708a674fd89641ea2207e79ddcba524046
font_01_sfnt_off0000f971.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF971 10648 bytes
SHA-256: 191294e694c1bd260b9b60c6ba080ba9d28ef4c2ee44b90c392dad5cf6d8f036

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