Malicious PDF — malware analysis report

Static analysis result for SHA-256 175ce21c828d13fd…

MALICIOUS

PDF

38.6 KB Created: 2020-11-02 05:25:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 60ff09c9eed7b08b22191e01cdab3449 SHA-1: 5812625ceb5f601805fddcb03c97a78a4fb3cf71 SHA-256: 175ce21c828d13fd8b8f14b2643e3b5fbba4976f6ccd4f36ef85ac90f8f786fb
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link to 'https://ggtraff.ru/123?keyword=ryse+son+of+rome+gladiator+guide'. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, appears to contain the same malicious URL, suggesting the primary intent is to lure the user to this external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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/123?keyword=ryse+son+of+rome+gladiator+guide In PDF document text
    • https://noloturajikule.weebly.com/uploads/1/3/4/4/134486045/3546174.pdfIn PDF document text
    • https://purusoze.weebly.com/uploads/1/3/4/4/134495244/sutufipolig_jurabudodevo_gososam.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/biwubeleba/67099329475.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c0fc398-9df3-4b65-93f5-abfcc69a739b/zosejinagegalur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37021ebf-3f5a-4089-a09c-5ef7fb6c3850/nanak_shah_fakir_full_movie_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/pusenikilem.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/metodo_biopsicosocial.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/11991270538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/4218/2563/files/babolonafaxekizagarim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6a81872-9844-4944-9c6b-a352097f293d/36487830990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6454/0840/files/84606707451.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4d02151-8e45-494c-a269-355fbd242ea9/dokozikiwubezafiziwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/5669/9829/files/henry_hudson_ship_pics.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C51 5220 bytes
SHA-256: 9363ffe78231b86a65055118a53a91ad7e3618baa465a01e1f0f89540d25ca9a
font_01_sfnt_off00005df8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF8 9808 bytes
SHA-256: 9c667990052a0a7bcf5cc97f870be7e31ec0abc6d71385badd7ecf705cc79e7e
font_02_sfnt_off00007f99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F99 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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