Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce6551da44f6b676…

MALICIOUS

PDF

68.4 KB Created: 2021-03-17 06:07:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b114bfb1f7fb0eb8ece402b4d9a11c25 SHA-1: 8c516687d88f495a2f91a17dfa2b6e683d382718 SHA-256: ce6551da44f6b676b722384e5c766e8eaa4fc53600e49d795a0e9acfe5cacb2e
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://lozipotod.ru/wix?keyword=algebra+2+unit+4+exam+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4367287/normal_5fc931ab25c69.pdfIn PDF document text
    • https://cdn.sqhk.co/bugininaxi/mRiaMgd/11.pdfIn PDF document text
    • https://cdn.sqhk.co/lewoxiguj/jgjchjz/2346839300.pdfIn PDF document text
    • https://cdn.sqhk.co/libewepigux/eQihHZT/skyscraper_demi_lovato_piano_sheet_music.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494165/normal_5feb34b3314fc.pdfIn PDF document text
    • http://kujamemapevubu.mypressonline.com/67411571735.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418574/normal_5ff2485d8d06f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476593/normal_6048e843bc30e.pdfIn PDF document text
    • http://vurujupafowutox.mypressonline.com/98862556020.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465024/normal_5ff5d2d994eb7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389080/normal_600200a450c45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470387/normal_5fe82d37cb346.pdfIn PDF document text
    • http://kexedeziferu.sportsontheweb.net/raxiwipola.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417024/normal_5fd63855a6d52.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490542/normal_60513e0d48bce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471474/normal_5fd7389506b2b.pdfIn PDF document text
    • https://cdn.sqhk.co/mofosalamo/Dw8FicF/viking_vmod5240ss_microwave.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/17559f30-6cfc-4590-a915-903f6a2cc42b/7_gnostic_archons.pdfIn PDF document text
    • https://s3.amazonaws.com/buwosevax/baylor_football_uniforms_history.pdfIn PDF document text
    • https://s3.amazonaws.com/nutanigonu/62347910068.pdfIn PDF document text
    • http://novupomajanox.atwebpages.com/80387033253.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4576d289-6370-428f-99b2-33d18db4253f/pulotinobusikatizazoja.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_off0000ce0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE0C 5512 bytes
SHA-256: 7bd5c1858f709a168bd51751e2aa1a549fdffbfcb0a0cd108bdd90058da54765
font_01_sfnt_off0000e0da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0DA 10372 bytes
SHA-256: 6aeefa690b0ab0531b055268c4a7d3d87a4ea6b8bbbdeeb6bceb5726579d6555

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