Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceecd065f3656054…

MALICIOUS

PDF

65.4 KB Created: 2021-03-04 05:19:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: c5f64d3a6287e5f849cf59440a5809d8 SHA-1: 0e310c9ce761b03702d13b62e3a97bc66fdbfac6 SHA-256: ceecd065f3656054a9cdf9f15c5746cc96fed314ed30491de2b673a3faa3fb3e
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-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://jottigo.ru/wix?keyword=driving+directions+to+cheyenne+wyoming PDF link annotation
    • http://vuzisebepuda.iblogger.org/vewanudakimowu.pdfIn PDF document text
    • http://rolevuses.iblogger.org/22632191580.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371536/normal_5ffcf735498cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408987/normal_601e42ac8dcfa.pdfIn PDF document text
    • http://nozetexopawovu.iblogger.org/left_tailed_z_value.pdfIn PDF document text
    • http://newonesitel.22web.org/xawapogorazazit.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/jevopemosod/avengers_5_trailer.pdfIn PDF document text
    • https://s3.amazonaws.com/zulezov/thirteen_reasons_why_season_3_episode_4_recap.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/aua_guidelines_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/tipusipitupukevalapobefe.pdfIn PDF document text
    • http://pasezisa.rf.gd/c_language_tutorial_code_with_harry.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_off0000c608.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC608 5364 bytes
SHA-256: 2db305efde89a1d18b50c16b71b98e947729bf057bd13e8d30fcd1e9ddad8bc1
font_01_sfnt_off0000d843.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD843 9516 bytes
SHA-256: 0dfd8167c76970578e09e0201512363fc8daff1b32c8ea371da96bd5bf0ffb46

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