Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9466a48450fca06…

MALICIOUS

PDF

103.6 KB Created: 2021-03-01 10:15:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 9bd20c061a34f8ac034ae2292d4901a7 SHA-1: 1d8eda0c867174440a7e8f71a93ed3854592a32f SHA-256: b9466a48450fca061b90deed91358cb873826cdcd59edfa50e5283e7150f602a
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'xezojetit.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, appears to reference 'Shadow and bone trilogy collector's edition', suggesting a lure to entice users to click the malicious link.

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://xezojetit.ru/aws?utm_term=shadow+and+bone+trilogy+collector%2527s+edition PDF link annotation
    • http://form-lnstagramcopyrightservices.com/html_and_css_editorcljju.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374951/normal_5fe11ce4235b6.pdfIn PDF document text
    • https://cdn.sqhk.co/jenojigise/Hghle9I/51004547687.pdfIn PDF document text
    • https://cdn.sqhk.co/ninafoso/8hbdBjj/bowaxadamezevenepise.pdfIn PDF document text
    • http://epipog.com/year_10_english_worksheets_freeac11n.pdfIn PDF document text
    • https://cdn.sqhk.co/rogapakaler/hfheDjn/wotawapusemi.pdfIn PDF document text
    • https://cdn.sqhk.co/lepudijazur/9vgjDhc/clash_royale_hack_private_server_ios.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407784/normal_60243a21b392d.pdfIn PDF document text
    • https://cdn.sqhk.co/xasakeza/d1xgceK/1st_grade_math_worksheets_printables.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370737/normal_6037f61cabab1.pdfIn PDF document text
    • https://cdn.sqhk.co/tatogevi/wjaiiSq/fawuga.pdfIn PDF document text
    • https://cdn.sqhk.co/wagejino/jjigWhi/the_trial_of_the_chicago_7_trailer_soundtrack.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/memobofilenabon/7215278750.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/xutamogevejuvuxi.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/weather_report_for_cleveland_ohio_tomorrow.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/fodivusozawosalawe.pdfIn PDF document text
    • https://s3.amazonaws.com/tofizo/latonikisemiviwutexis.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_off00014af1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14AF1 5672 bytes
SHA-256: 2109a22177b72195a921c15c61bb843878199939c6156c92c295b6ca724a5235
font_01_sfnt_off00015e55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15E55 16608 bytes
SHA-256: fe5a31ff0902567518d3e5c01dcddcc6dcb9b95fe6fd61d613f99bb49cbd1b3a

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