Malicious PDF — malware analysis report

Static analysis result for SHA-256 573fc34fb7fd47ed…

MALICIOUS

PDF

51.4 KB Created: 2020-08-18 13:20:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b96c359ed70888cec0e88d27dbd7e5b SHA-1: 0fcfb1002928db8a8f8d9d169450330792ce5692 SHA-256: 573fc34fb7fd47ed76b5ea08427a55931114dd2cf3fd7e6989d83f663abed2eb
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to an 'installation manual' and the malicious URL itself, suggesting a social engineering lure. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm designed to obscure the malicious redirector.

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=bonaire+navigator+controller+installation+manual
    • http://bupap.kimmiyama.com/uploads/1/3/1/4/131452903/2528290.pdf
    • http://files.allanimalclinichattiesburg.com/uploads/1/3/0/9/130969693/filudebezusimexos.pdf
    • https://cdn.shopify.com/s/files/1/0430/4932/0597/files/67999506824.pdf
    • https://cdn.shopify.com/s/files/1/0430/4489/6917/files/xubifitavemavomabezadosa.pdf
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/limitations_of_beer_lambert_law_in_spectrophotometry.pdf
    • https://cdn.shopify.com/s/files/1/0429/8306/3715/files/435680430.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wakudegebemufajetexu.pdf
    • https://cdn.shopify.com/s/files/1/0440/8036/5720/files/41729314585.pdf
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/55335871264.pdf
    • https://cdn.shopify.com/s/files/1/0431/6420/5216/files/pdf_text_editor_freeware.pdf
    • https://cdn.shopify.com/s/files/1/0435/8812/4835/files/lopewinurepawujetepevimar.pdf
    • https://cdn.shopify.com/s/files/1/0434/7058/6022/files/73056022078.pdf
    • https://cdn.shopify.com/s/files/1/0430/5344/9367/files/35896776814.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f2f.bin
86b0c284f496ec7d985528620353c59c2a55ac4335c72aa15d505e296c5eaef7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2F 5108 bytes
font_01_sfnt_off00009079.bin
ad8b7acdbd4fa22ec0b68b482c650bc6cde1d585b9dbaefdf7e8904af896cedc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9079 9828 bytes
font_02_sfnt_off0000b23b.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB23B 4324 bytes

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