Malicious PDF — malware analysis report

Static analysis result for SHA-256 767f1d5c688e569a…

MALICIOUS

PDF

50.4 KB Created: 2020-08-21 15:16:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52a7bcc70b197375fb075af8b65cf5c3 SHA-1: c204447c9d9bf881f1366372a0c82989944476cc SHA-256: 767f1d5c688e569a8b084a653397bc520baf4b8bcd7aa422dfc148e7263f3d3b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a mass external link farm, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains text referencing 'Cbc news world report' and includes the malicious URL. This suggests the PDF is designed to trick users into clicking the link, leading them to a malicious site for phishing or further payload delivery.

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.ru/pify?keyword=cbc+news+world+report
    • http://vipekoz.holistichealingspa.com/uploads/1/3/0/8/130873995/39183.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5682/files/25047181211.pdf
    • https://cdn.shopify.com/s/files/1/0432/0926/1217/files/sipusafepab.pdf
    • https://cdn.shopify.com/s/files/1/0433/5714/3205/files/43599033931.pdf
    • https://cdn.shopify.com/s/files/1/0440/8918/0310/files/kayla_itsines_28_day_book.pdf
    • https://cdn.shopify.com/s/files/1/0429/1778/9862/files/55491721721.pdf
    • https://cdn.shopify.com/s/files/1/0428/6365/7119/files/17939053629.pdf
    • https://cdn.shopify.com/s/files/1/0437/7162/5621/files/63282299497.pdf
    • https://cdn.shopify.com/s/files/1/0437/5796/1374/files/nizularalemupojogogaz.pdf
    • https://cdn.shopify.com/s/files/1/0435/7206/8520/files/ca_final_books_free_download.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_off000087a2.bin
523286debe68c9d5adcf40c6d0b1cb21c3467cc06a4e573eed3136ca8e3da998		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87A2 4992 bytes
font_01_sfnt_off000098ae.bin
38ac61349d4b6f898afe48fc26ac5abe1e4eec93f511954582a96b1cddf572dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98AE 10656 bytes

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