Malicious PDF — malware analysis report

Static analysis result for SHA-256 863e769233cee721…

MALICIOUS

PDF

73.1 KB Created: 2020-12-09 12:15:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: f527413d89b0b43ff17679e03b2e7c6e SHA-1: ded9fec565df11f51eebc87e79adda4f3827d2be SHA-256: 863e769233cee7218344a2cd1db4ad6a85ab5ed795542dbd0d76c4f3a22875fd
102 Risk Score

Malware Insights

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

The PDF contains a lure related to 'free movies app for iphone' and embeds a link that redirects to a known malicious domain. This suggests a phishing attempt to trick users into visiting a malicious site, likely to download further malware or exploit vulnerabilities. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ggtraff.ru/aws?utm_term=best+free+movies++app+for+iphone In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366031/normal_5f8755f93183c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc790fbfc603311fbfb0c74/t/5fcb09deda45e86cca9c88f6/1607141855718/13280578981.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc27b7e60f2895dc1f1e23b/t/5fc3c4d6f8cdb769c6566df6/1606665434396/realidades_2_capitulo_5a_answers_page_96.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4e657be9b693951246ba3/t/5fcbb3171415195da08ba8ed/1607185175736/pizozadefofuliral.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81c41894-441b-4c06-b9b9-a2a63f624a30/xeguwotegabotokot.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe4e87145a8629dc7e4174/1606307467285/16898786524.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c57dc37-7816-4223-b1ca-6e6012d21703/civ_root_word.pdfIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/alvida_song_from_cocktail_free.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e925ea4a794d56451110/t/5fc47cc41972c46e3c2d3b5e/1606712518959/37626632396.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf57561e25426e1fe6063/1606284661791/seduxinujakajax.pdfIn PDF document text
    • https://s3.amazonaws.com/daselex/electro_harmonix_bass_synth_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/ferulunu.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_off0000e182.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE182 5220 bytes
SHA-256: 3c97a75e4ff42784764cc7f8ea6952746b602b051f9fa24a835327da97531909
font_01_sfnt_off0000f321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF321 10956 bytes
SHA-256: 5c63e312ebf5d4115d9b0d81c32d21282a303dcf2a17b5b81c8a30367db8f0da

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