Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5bd3b4e8a178d93…

MALICIOUS

PDF

67.8 KB Created: 2020-12-15 13:43:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: fdfd61e43f1afbf84597234d9384a23d SHA-1: d73a74591b947278af67b65108ccf6930d21e19d SHA-256: f5bd3b4e8a178d93326c6e0e4dbdbcb9fa98fc6532617299f11ee2762626f046
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-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://trafffe.ru/strik?utm_term=thundering+pandaren+spirit+2+pet PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc6731a8787e8798992012f/t/5fcd5dfb9aa2de0c64a53ffb/1607294459842/52425237502.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1651bc89e1c4b8fc1e357/t/5fc3f70061e25426e1b2a386/1606678273389/napikidiramosiwekoni.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc53e739698b02c7f3d3330/t/5fce07896f0099009e89eb4d/1607337865609/best_friends_forever_ffxiv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/454b18a0-d8f0-4b9a-a6b5-2f1e7930e129/43065241153.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc50a6fc30a162e0c6d1fcc/t/5fcd783b5d2e6f3bda52a99d/1607301179349/maze_methode_vorhofflimmern.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc676cd1452f90b7f0b47eb/t/5fc782640623334b0c6297a2/1606910565233/tosetifawojanisili.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/learning_drawing_and_painting.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e607df132613bbbdbdb8/t/5fc12ffe4e98326c023b0b4a/1606496255312/sigotegufadofu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbffea5239b0722912c2f3a/t/5fc12e61f81c9a2a0ccca641/1606495841805/1548034750.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc36ab7a879396864183595/t/5fc91d44504e0f798630e7a9/1607015748670/rijijinokorenifozuxikaz.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf56ae18e72e5fdbcebfb9/1606375087159/kitchenaid_professional_6000_hd_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc508ddbf71053ccb2a4bf2/t/5fcae632b495bd202816bcbc/1607132726221/dragon_arrow_skyrim_id.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_off0000cc42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC42 5272 bytes
SHA-256: 6bac1e6ee675b42309aee3484e451be54cb801f0d3f2a70fa9678a39f55f78f6
font_01_sfnt_off0000de26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE26 10716 bytes
SHA-256: 943ab7bb9ffbf044f6f2246a2e64620222eb37fc6a867efeb3e8db4f47166c91

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