Malicious PDF — malware analysis report

Static analysis result for SHA-256 c58ce7caa26ee8a9…

MALICIOUS

PDF

72.6 KB Created: 2021-03-18 12:13:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 8b5b2ffa1e8746b154342660101f1bbc SHA-1: c47784fc249caa63bd5e54fca09b8580b5452cba SHA-256: c58ce7caa26ee8a91ccbabca347b98dd030cd14e9386deb5b7a624960ad0721b
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 0.9992

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://jumiwimov.ru/aws?utm_term=earth+portrait+of+a+planet+5th+edition+pdf PDF link annotation
    • https://cdn.sqhk.co/votojuxosaf/dijijUO/75664426733.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456660/normal_600059f2137d1.pdfIn PDF document text
    • https://cdn.sqhk.co/nuditufu/eGighcf/boruj.pdfIn PDF document text
    • http://vidclips.design/73390574374ixk5q.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460972/normal_603cebb82ff43.pdfIn PDF document text
    • https://cdn.sqhk.co/rowazazapa/jgirDZY/hearthstone_top_decks_september_2020.pdfIn PDF document text
    • http://kengoru.space/47564732197uzp6n.pdfIn PDF document text
    • http://podarokinsta.site/propresenter_6_big_surtpqf2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417806/normal_60112d0e33b2d.pdfIn PDF document text
    • https://cdn.sqhk.co/kivipemo/CsqibHb/duzibadufefubonatamarukez.pdfIn PDF document text
    • https://cdn.sqhk.co/marixefe/cShfewB/niniwuxizup.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wafazitowem.rf.gd/advantages_of_technology_in_society.pdfIn PDF document text
    • https://s3.amazonaws.com/fekife/35963441684.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/80690210465.pdfIn PDF document text
    • https://s3.amazonaws.com/daniwodug/1558784010.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/bowitevozafuboluk.pdfIn PDF document text
    • http://ramapenutizawa.epizy.com/sex_and_the_city_season_5_episode_3_cast.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/576435806.pdfIn PDF document text
    • http://pelasezota.rf.gd/logoputi.pdfIn PDF document text
    • https://s3.amazonaws.com/fogibi/gipowepuz.pdfIn PDF document text
    • https://s3.amazonaws.com/kifutizijebuj/bulepo.pdfIn PDF document text
    • http://gekomulo.rf.gd/solo_indonesia_travel_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/what_is_the_definition_of_potato_chips.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_off0000de4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE4C 5032 bytes
SHA-256: ed15afd252597b528334aeca3a8a07c126c8b1552c477fba9438e1af51354306
font_01_sfnt_off0000ef6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF6C 10872 bytes
SHA-256: 5f59bebd553a8c16f8a0d42fd3114ac399b0048623b0984b7f2d4d5c21ec933d

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