Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e0c8711e68dfec…

MALICIOUS

PDF

43.0 KB Created: 2020-08-21 02:25:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47f0c296cd29fa2aad5c46483d075989 SHA-1: 6bad4dd837fa885c1b5248992ea90bc662a6e558 SHA-256: d3e0c8711e68dfec76db4844abf4bb509f27b1179fb313e685aace19f5c7dd53
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing indicating it is a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=descargar+video+er+pro+para+google+chrome'. The document body also contains this URL and other embedded URLs, suggesting a lure to download a Google Chrome extension. The presence of numerous external PDF links further supports a link farm or redirection tactic. No scripts were extracted, but the primary malicious action appears to be redirecting the user to a potentially harmful site.

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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.com/pify?keyword=descargar+video+er+pro+para+google+chrome
    • http://files.dannyangelz.com/uploads/1/3/1/3/131398123/kugezonet-xonatera-mibis.pdf
    • http://files.nordicstuntriders.com/uploads/1/3/0/7/130775027/b00a67.pdf
    • http://files.trailerfestrally.com/uploads/1/3/1/4/131453247/11602e3975989.pdf
    • http://kuviba.briansartofcreation.com/uploads/1/3/0/7/130740596/lunojazigoda-risidasofiwuvom-jisoxokujajet.pdf
    • http://files.artoframachandran.com/uploads/1/3/1/4/131454190/5799702.pdf
    • https://cdn.shopify.com/s/files/1/0430/1104/7575/files/immunization_form_3231_ga.pdf
    • https://cdn.shopify.com/s/files/1/0435/4077/5064/files/42034319399.pdf
    • https://cdn.shopify.com/s/files/1/0437/4475/5866/files/driving_test_questions_and_answers_botswana.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/60991745568.pdf
    • https://cdn.shopify.com/s/files/1/0459/2553/1815/files/22103301606.pdf
    • https://cdn.shopify.com/s/files/1/0439/3703/8491/files/waves_gizmo_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0429/2696/4903/files/awei_a920bl_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/5394/8836/files/36933808403.pdf
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/5447824591.pdf
    • https://cdn.shopify.com/s/files/1/0433/4131/6249/files/tusebegalodumajis.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000682f.bin
57a5759b6e1bf2c51a6685487006679026096f2a0227e1b28023b5696351037f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x682F 5544 bytes
font_01_sfnt_off00007aea.bin
3b534c59b2aad91138cb2fb91904ca5e799288d6b4e8d51b3b9c42fe33ee7303		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AEA 10672 bytes

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