Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d33a7d7b610e64c…

MALICIOUS

PDF

65.2 KB Created: 2020-12-22 20:08:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: a262f46a0dd7cec0964db685b0675312 SHA-1: d6f747c10f9cf3a32c7a8bebb437392246021e52 SHA-256: 4d33a7d7b610e64cf96963ea1525482cf89853e77edf4cd562df0b1aba51960a
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of phishing and callback lures. The document explicitly instructs the user to interact with the clipboard for command execution, a common tactic for downloading and running second-stage malware. The embedded URL is likely part of the initial lure or payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://traffking.ru/123?utm_term=wake+county+mugshots+2017 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/5fc69f700b6b03258f5d1902/t/5fcc77a283d2ac65cc0c1b0c/1607235490327/53802744769.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/964601e0-cdf9-44ca-95e4-13b637bdf4c5/7320408504.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/66006268250.pdfIn PDF document text
    • https://s3.amazonaws.com/mekonulegipero/dujigubozujegeteguv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6543a437-9df9-4fbb-914c-d8d06b9e5f5e/xoxuvaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fb1dafb-2277-411c-9bb3-005e16f4ab77/one_chance_game_unblocked.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbffe9d5687f52b6b7c161f/t/5fc215492dd96f591836621d/1606554957071/82609384202.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/525312966.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1dd1b5b5-53b3-4a36-a0f4-df7d3501c320/usa_porn_star.pdfIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/31514122494.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc57c5b9698b02c7f3fb057/t/5fc8ed322197e711ef7d97cc/1607003442775/best_female_kung_fu_fight_scenes.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/nibinekosiniwoxi.pdfIn PDF document text
    • https://s3.amazonaws.com/bitizopovopaso/fusionner_plusieurs_pages_en_une_seule_page.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf512c9d7936484084c452/1606373678896/84888610316.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbffb1ae9fc3622d51d09b9/t/5fcd21cac00f007ceaefa2d9/1607279050668/96710256143.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/bandicam_for_pc_windows_10.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a6de69b-d117-46e8-9f1e-3fedfbcb1b34/fll_to_vegas_direct_flight.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_off0000c179.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC179 5672 bytes
SHA-256: d68c2332fd188c302f517af9242f14b96871d34f75771765627148bfd52d240d
font_01_sfnt_off0000d4d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4D1 10376 bytes
SHA-256: a9371cb21e4aeb6ed30fd27c454df4a0fa772582565ab7da819c0137cedd61b1

Open this report in the interactive analyzer, or submit your own file for analysis.