Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad99e3fed5e4a2d4…

MALICIOUS

PDF

58.1 KB Created: 2020-12-11 00:18:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 0e903d10fa2f9d0d0f71fb242fb57671 SHA-1: d84772e7074cfc1b29c892a4a30f084c7a54b5f7 SHA-256: ad99e3fed5e4a2d4051c767e2b8c7793a42397c0718e1257614db6c9fde5c413
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-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://trafficel.ru/strik?utm_term=human+trafficking+toledo+oh 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/5fbce344be7cfc36344e8aaf/t/5fbf4cf2f8cdb769c6d9162e/1606372595221/reading_a_climate_map_worksheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce18420db0542b884dcd63/t/5fced30ccaa95a391e5c2cdb/1607389964312/munow.pdfIn PDF document text
    • https://s3.amazonaws.com/fewifuwu/butcher_block_island.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbffa571c8c7413142c9acf/t/5fc21ccf145a8629dcf86e57/1606556880548/xamawovetilikular.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0da75085bf90c0efcd65a/t/5fc1af1b1972c46e3cddc6a5/1606528796100/vowinojefuweruxex.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc794aa849d1727bc133313/t/5fd16585133bcb3b8890ab4c/1607558533465/7216725502.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f0cad49dd12447345200/t/5fc58c304e98326c02cf3f6f/1606782000477/41880098824.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82ed8518-88d1-4bf6-ade5-07a3760900a5/kekoxuzepofijatukajelog.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc13e7011f6a4198487f639/t/5fc50c164e98326c02b09746/1606749207648/pekabaku.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7a1018d6e8c3767c46c74/t/5fce12aed336b863f0e935ab/1607340719539/short_horror_stories_in_english_for_beginners.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f8cba95-b1f6-40ee-8291-be7bd25cec3d/59798880774.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f7fbe9fc3622d5227cd2/t/5fc4cf3a2dd96f591884e3a1/1606733628278/roloj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de0d5a9b-0daf-4288-83f0-6a9350e7e3c5/76458535600.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_off0000aa65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA65 5284 bytes
SHA-256: 8f331b10aa5db5ce291ab5980c1c1252ba8472e9c31f518bb08c3b6374bb72e7
font_01_sfnt_off0000bc29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC29 9328 bytes
SHA-256: 3d73ed1f133ce62383f70075821528aa66040fa2cdae50af5e5e404222fb48d0

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