Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d8d96c9ff39f59c…

MALICIOUS

PDF

65.7 KB Created: 2021-03-28 21:58:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 7b1502f2c82a04e14433aa6583a56c19 SHA-1: 152bf9adfc610f0c547e4ebc26849f7bbe70615c SHA-256: 8d8d96c9ff39f59c0ab17e2555661d21400a6eb09a2f290ad1749cc0fb574b90
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 0.9998

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://resalured.ru/strik?utm_term=ruger+lcp+2+parts+for+sale PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370054/normal_6032144fbd330.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385634/normal_605f0d0a5fe9b.pdfIn PDF document text
    • https://cdn.sqhk.co/tavevalurov/3WidFhb/lodadonedifuwoxefakarok.pdfIn PDF document text
    • https://cdn.sqhk.co/tokofape/jjHgdpn/tufubazutuxupuvu.pdfIn PDF document text
    • https://cdn.sqhk.co/xorunase/kgfiayz/37506387353.pdfIn PDF document text
    • https://cdn.sqhk.co/fokofike/igggejf/lijisubug.pdfIn PDF document text
    • https://cdn.sqhk.co/miropefaneka/wWhcVic/vozutime.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/zepifudoxapo/wudozitawupabogis.pdfIn PDF document text
    • http://rivagajogitow.epizy.com/45998468520.pdfIn PDF document text
    • http://zefixufedinokas.epizy.com/lajedodiduxirusisogurozax.pdfIn PDF document text
    • http://fezesotufixodow.epizy.com/nefirazusajomizejiwonula.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxenipup/2248975879.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezux/how_do_i_find_hidden_text_in_a_picture.pdfIn PDF document text
    • https://s3.amazonaws.com/purixifusipelid/74635350395.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/wezirejopal.pdfIn PDF document text
    • http://zitebexelopor.rf.gd/2011_chevy_traverse_ignition_problems.pdfIn PDF document text
    • http://xidemovuzedep.rf.gd/jabidari.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/38953099301.pdfIn PDF document text
    • https://s3.amazonaws.com/nalifij/gemusawidadujabob.pdfIn PDF document text
    • http://sesilav.rf.gd/for_the_long_haul_meaning.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_off0000c166.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC166 5320 bytes
SHA-256: 11ea5979b58b855350ab6212354d9ae7c6b2f2304820376954fb8017545277c0
font_01_sfnt_off0000d39c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD39C 10684 bytes
SHA-256: 67ed630c74bd107cffe9f94f83d8863b5391c51426ef5f568a74c6a558027d54

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