Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1802df22f3daaf2…

MALICIOUS

PDF

45.4 KB Created: 2020-08-29 20:43:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ccac7d33f04e63d3e3a01ec8a0da377 SHA-1: 3bf4b3d4564be34556446e2661de89ae40627408 SHA-256: e1802df22f3daaf2b9c560607c45ac2080e713dcc0bfc4df5f9b88db379cfefc
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The document body also contains the same malicious URL, alongside numerous benign Shopify URLs, suggesting a link farm or SEO poisoning tactic. The primary malicious URL, 'https://ttraff.me/wix?keyword=7+sister+oil', is likely the initial stage of a phishing or malware delivery chain.

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/wix?keyword=7+sister+oil
    • https://cdn.shopify.com/s/files/1/0433/5940/4197/files/weekly_planner_template_printable_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/0053/6986/files/80850232583.pdf
    • https://cdn.shopify.com/s/files/1/0437/8882/8829/files/playguy_magazine.pdf
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/componentes_de_la_personalidad_temperamento_y_caracter.pdf
    • https://cdn.shopify.com/s/files/1/0433/6254/9910/files/kamuzexixitage.pdf
    • https://cdn.shopify.com/s/files/1/0437/2991/1957/files/qr_barcode_scanner.pdf
    • https://cdn.shopify.com/s/files/1/0429/2460/5599/files/sql_financial_accounting_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0435/5099/8679/files/calculus_and_analytic_geometry_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/4040/6684/files/hypoglycemia_newborn_guidelines.pdf
    • https://static.usrfiles.com/ugd/b8c837_4b9cfd60f7b948419ce255b289583e01.pdf
    • https://static.usrfiles.com/ugd/b8c837_4ffec7ef8bf841e1aef717cf53b69edb.pdf
    • https://static.usrfiles.com/ugd/8cbfce_50287c8670124bb6a62acf3975b02592.pdf
    • https://static.usrfiles.com/ugd/d94ae5_dd26eaa891b54413b53bfa94990d4fcb.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_off0000688b.bin
80309a2c84b50ad0263eaac55e9e33f0755025c32c60139757145d14e8e44492		 pdf-font-stream PDF embedded font (sfnt) at offset 0x688B 4452 bytes
font_01_sfnt_off000077ba.bin
7f5d83bb5d819a8ecd31fb1c259f85d736772df9aa82d4a351eb2926d30ac393		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77BA 15384 bytes

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