Malicious PDF — malware analysis report

Static analysis result for SHA-256 69e9219609b4510b…

MALICIOUS

PDF

72.2 KB Created: 2021-03-01 13:12:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 41a6ddf1d471903319b21613b65f1734 SHA-1: 9a370be6861c5aa6d8227bb2c1ff251e936424df SHA-256: 69e9219609b4510bc02cb18e5e08d2d55cdac0f6627df4f76c890e7a411db524
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware download site. The document body, though heavily obfuscated, appears to be a lure related to search results, suggesting a spearphishing attachment attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/strik?utm_term=english+literature+and+composition+section+1+answers+2009 PDF link annotation
    • https://cdn.sqhk.co/baresupujar/hexghhi/87477703150.pdfIn PDF document text
    • https://cdn.sqhk.co/rebabafa/2qhjLUh/59030703262.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470830/normal_5fdf7a3360531.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410983/normal_603658f983ebe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366366/normal_5fc65c61263d8.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/vebogotexaf/zarchiver_app_free_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/sukiporanuba.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/vejasofikaneburegamipaxi.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/puxufalafolux.pdfIn PDF document text
    • https://s3.amazonaws.com/dejazuvorira/sojidelenedab.pdfIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/apex_legends_hack_free.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/dikovomuwotibigiwigif.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/math_i_unit_3_evaluating_functions_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/falufusu/tajoriwat.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_off0000d81d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD81D 6016 bytes
SHA-256: 63a767e0b9e7dfdc3dbb7ae5adbc372f890bd3e21a29ed715b0fa7ebd1a4e446
font_01_sfnt_off0000ec88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC88 11660 bytes
SHA-256: f6593948f886584a2d12e97aa218fc50eefad886be958e3e82b388182874ab1c

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