Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9a02f392fd431cc…

MALICIOUS

PDF

39.9 KB Created: 2020-08-17 11:39:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 693d3b34411ed30250d5632fefd0fc7b SHA-1: 1f62c91718eff4558afd56d523b4b89ff630446d SHA-256: c9a02f392fd431cce9363ce3db33b68e1e18a70663fcb20593f528bb29799e76
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a link to a known malicious redirector. The document body and embedded links suggest a lure to obscure malicious destinations. The primary redirector URL is https://ttraff.cc/pify?keyword=locally+sourced+cuba+tour+guides, which likely leads to a further malicious payload or phishing page.

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.cc/pify?keyword=locally+sourced+cuba+tour+guides
    • http://nakokibu.skimmeroutdoors.com/uploads/1/3/1/4/131437736/7145674.pdf
    • https://cdn.shopify.com/s/files/1/0437/3705/5393/files/nopok.pdf
    • https://cdn.shopify.com/s/files/1/0428/4927/1975/files/79277391090.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73807437975.pdf
    • https://cdn.shopify.com/s/files/1/0434/4155/3575/files/cabala_em_portugues.pdf
    • https://cdn.shopify.com/s/files/1/0431/6309/1112/files/nazoxekesuvaxifebitifo.pdf
    • https://cdn.shopify.com/s/files/1/0437/6713/6413/files/95084146148.pdf
    • https://cdn.shopify.com/s/files/1/0429/4865/7318/files/44524887089.pdf
    • https://cdn.shopify.com/s/files/1/0435/6662/9032/files/an_introduction_to_applied_biogeography.pdf
    • https://cdn.shopify.com/s/files/1/0431/2799/6565/files/aws_availability_zone_cloudformation.pdf
    • https://cdn.shopify.com/s/files/1/0438/4374/7990/files/datisopebivodovukevolag.pdf
    • https://cdn.shopify.com/s/files/1/0430/9454/0452/files/40._71386_73._99793.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_off00005e3f.bin
8d56de8910084070a3b1c374fe104e745b8751486ad0865a3b03b7078ebbe0bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E3F 5288 bytes
font_01_sfnt_off00007046.bin
d9234f332bb0804158bba7c138e37b9259df1daa1120a85da6368f9ee6a8bbfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7046 10152 bytes

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