Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bc75b61e0f1a979…

MALICIOUS

PDF

77.2 KB Created: 2021-03-09 20:29:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 49863e0ad553103167520f8e52186ed0 SHA-1: f376baaf2a9231fe699a1a93295ed71cee6ce155 SHA-256: 5bc75b61e0f1a979cdf4c660842ed3bf5e46b9dc0949533a7a3cfe9627080085
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that, when clicked, likely leads to a malicious site. The document body, though heavily obfuscated, suggests a lure related to 'Albion online building guide', indicating a social engineering attempt to trick the user into visiting the provided URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/123?utm_term=albion+online+building+guide PDF link annotation
    • http://onesmall.space/timamufuzozikaretemevetc00h5.pdfIn PDF document text
    • https://kijesutezex.weebly.com/uploads/1/3/5/3/135328712/3700832.pdfIn PDF document text
    • https://ditufanavuj.weebly.com/uploads/1/3/0/7/130738569/wunuravo-mumoxi-sijevidugu.pdfIn PDF document text
    • http://nopotaz.medianewsonline.com/29682624162.pdfIn PDF document text
    • http://afracheat6.xyz/be_a_sales_superstar_brian_tracy_free_downloadh86gr.pdfIn PDF document text
    • http://fumizudo.sportsontheweb.net/maxcare_extended_service_plan_phone_number.pdfIn PDF document text
    • http://busawilapuguzas.iblogger.org/levulufawila.pdfIn PDF document text
    • https://zuramuvo.weebly.com/uploads/1/3/4/4/134480672/2271387.pdfIn PDF document text
    • http://xogavuw.medianewsonline.com/jinupenapavikikosekatad.pdfIn PDF document text
    • https://buwigare.weebly.com/uploads/1/3/5/3/135308802/6602ef8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wiwosotu.myartsonline.com/how_do_i_change_my_honeywell_thermostat_to_celsius.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/banesco_movil_apk_descargar_gratis.pdfIn PDF document text
    • http://xagunege.epizy.com/38829209797.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/nexof.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/wuxomotowasakodor.pdfIn PDF document text
    • http://sabiwilurase.atwebpages.com/qam_modulation_matlab_code.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/29569557069.pdfIn PDF document text
    • http://ladorum.epizy.com/38436450688.pdfIn PDF document text
    • http://pazosikubune.epizy.com/kenase.pdfIn PDF document text
    • http://fevewit.epizy.com/fepenenawigovapawaba.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_off0000f5b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5B3 4640 bytes
SHA-256: dd75ef32bfaf789e0ccac62aed4d6f72fa15b97a7b9a17da36f92b939e378ce3
font_01_sfnt_off00010592.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10592 10016 bytes
SHA-256: e3a402468061abe1fb8d3434b60d310d7fc50b52c049bdff1f4a8cec8ec51804

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