Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8f3234568ba2302…

MALICIOUS

PDF

54.9 KB Created: 2020-08-27 15:30:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d267c38aee753375b53eec8fcc3c1bf SHA-1: 7e1eb7613d9788d688514d5f2e30e3ffac9a0726 SHA-256: e8f3234568ba23022e44b1624b33920469edebd8541fa7154e706aecce65ae58
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.me, which is designed to lead users to malicious content. The document body, though heavily obfuscated, contains the same URL and a benign-looking PDF filename, suggesting a lure. The presence of numerous other links to Shopify-hosted PDFs indicates a link farm strategy to improve search engine visibility for malicious content.

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.me/pify?keyword=internal+contract+kick+off+meeting+t
    • http://files.bluechillithai.co/uploads/1/3/1/4/131437669/sisesesatu-sipaxo-figutinep.pdf
    • http://zosodumar.eleanormccaughey.net/uploads/1/3/1/4/131437604/zevukalarifawo.pdf
    • http://files.phoebesmithceramics.com/uploads/1/3/0/8/130873758/zepemof-sifetog.pdf
    • http://files.sachabas.net/uploads/1/3/1/4/131437508/tulem-fipajudoluleke-ribexopawo.pdf
    • http://wegesi.sharpeningonsite.com/uploads/1/3/0/7/130776334/senodufezo_revalu.pdf
    • https://cdn.shopify.com/s/files/1/0435/8265/2579/files/mn_car_title_transfer_form.pdf
    • https://cdn.shopify.com/s/files/1/0430/1049/0519/files/excel_multiple_regression_analysis_and_forecasting_template.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87913440599.pdf
    • https://cdn.shopify.com/s/files/1/0431/9766/1348/files/dilbert_mission_statement_generator.pdf
    • https://cdn.shopify.com/s/files/1/0429/8702/8639/files/vanders_human_physiology_15th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0434/7097/9237/files/dj_mix_punjabi_song_mr_jatt.pdf
    • https://cdn.shopify.com/s/files/1/0440/1371/5606/files/gazujizogopaliwewodok.pdf
    • https://cdn.shopify.com/s/files/1/0430/3778/6266/files/pijegepezinusuzapi.pdf
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/fletcher_henderson_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0463/0439/5426/files/post_office_guide_part_1_2019.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_off00009b3c.bin
1f34d229c258faee65ea301c31e1bcd90b53f2605e49fe324691054861c15452		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B3C 5024 bytes
font_01_sfnt_off0000ac3b.bin
36e7481d630a2da1c1e22032d2b924d8715e8feddc1d23b57a4bda7fc272ff50		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC3B 10120 bytes

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