Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cc2dde5a2a1db7e…

MALICIOUS

PDF

76.1 KB Created: 2021-03-14 17:51:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: bb3e8ba95bc0912b1b7a93e9ffba4d05 SHA-1: a87f989813ae10ab6009654fae3263d6a5479611 SHA-256: 4cc2dde5a2a1db7e7d1aa0eb75b77fc52f77a1a7d25dc69aad45dbfbf27dbb2e
96 Risk Score

Malware Insights

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

The file is identified as malicious by multiple heuristics and a machine learning classifier. It contains an embedded URI pointing to 'https://ponafet.ru/wix?keyword=animal+farm+unit+test+study+guide', which is likely a phishing or malware distribution lure. The presence of multiple suspicious URLs and the ClamAV detection strongly suggest a malicious intent, likely related to phishing or delivering a secondary payload.

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://ponafet.ru/wix?keyword=animal+farm+unit+test+study+guide PDF link annotation
    • http://dashcamtopbest.com/2973999507907e29.pdfIn PDF document text
    • http://raisinshq.club/33784034400a8f4w.pdfIn PDF document text
    • https://xufipenisugiw.weebly.com/uploads/1/3/0/8/130873979/842bd441901a1.pdfIn PDF document text
    • http://astropsychology.website/77955174221n7i74.pdfIn PDF document text
    • https://wunapeno.weebly.com/uploads/1/3/4/6/134621426/4078243.pdfIn PDF document text
    • https://wivixovipi.weebly.com/uploads/1/3/4/4/134442696/0ef9b5a457c64f6.pdfIn PDF document text
    • http://senteber.site/588736051193mbev.pdfIn PDF document text
    • http://specrazreshenie.com/what_are_java_interview_questionslsy1x.pdfIn PDF document text
    • http://soldonlakewood.com/87393342811zyw0q.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lokokojorivumi.rf.gd/guzamajaniporutotona.pdfIn PDF document text
    • https://s3.amazonaws.com/vuraradaso/best_adventure_games_for_android_reddit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5e5139f-fecd-476b-a508-8eca0d29aa65/how_do_i_fix_my_hp_ink_system_failure.pdfIn PDF document text
    • https://s3.amazonaws.com/fogibi/78209239685.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxalirudidel/gagalivegoxul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97ca7ad0-6ebd-4d6b-8310-f4353106c291/sharepoint_2013_sp1_end_of_life.pdfIn PDF document text
    • http://najaxobefirag.epizy.com/sotovalir.pdfIn PDF document text
    • https://s3.amazonaws.com/zesixefe/tapejure.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d0eabc5-57f7-4c52-8565-534c024dd52a/nigizovirixotabufefurija.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_off0000eb55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB55 5316 bytes
SHA-256: 21e92d4710b8a9d38069781d681c3095cfaa0c96e77d5279eeebc27e610e9ed6
font_01_sfnt_off0000fd5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD5A 11028 bytes
SHA-256: df2853f35717c9e16e4821a393f47132ca29d918bc0f4b789cdeac5601685610

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