Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e00964144288061…

MALICIOUS

PDF

42.9 KB Created: 2020-08-24 00:01:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4565ff99edb865914d33a3b03a4e0e85 SHA-1: 9d0f752c6775a7efe0859b2b9e836b2639da096d SHA-256: 4e0096414428806123008dc21c33776b1578a2e38dcde43b6c710d71414b1add
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, characteristic of a link farm. One of these links, 'https://ttraff.cc/pify?keyword=conclusion+of+civil+engineering+internship+report', is identified as a malicious redirector. This suggests the document is designed to lure users to malicious websites, likely for phishing or other scam-related activities. The presence of numerous benign Shopify links alongside the malicious one is a common tactic to obscure the malicious intent.

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=conclusion+of+civil+engineering+internship+report
    • http://files.seasonsheart.com/uploads/1/3/1/3/131382092/ca416ce2ca44.pdf
    • http://xanurezo.deenacormierphotography.com/uploads/1/3/2/6/132681670/kuwasejegekosoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/7234/8579/files/guwatorafujokujodazuniwux.pdf
    • https://cdn.shopify.com/s/files/1/0433/3063/3881/files/treasure_chest_claw_machine_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/how_to_get_your_discord_server_popular.pdf
    • https://cdn.shopify.com/s/files/1/0432/9875/0629/files/17344347175.pdf
    • https://cdn.shopify.com/s/files/1/0430/4489/6925/files/taxavoz.pdf
    • https://cdn.shopify.com/s/files/1/0432/3196/9438/files/26171369313.pdf
    • https://cdn.shopify.com/s/files/1/0429/5085/2762/files/roketu.pdf
    • https://cdn.shopify.com/s/files/1/0437/3502/3765/files/the_drowned_city_of_skalla.pdf
    • https://cdn.shopify.com/s/files/1/0438/2860/9186/files/47830102364.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_off00006a75.bin
a3f13c3295e9c88a7275dccde3ba35e610333adaec15434918b57df690d4568d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A75 5032 bytes
font_01_sfnt_off00007ba1.bin
3474638be4298271c8996651d03f1dda6937cdc927df92f492f441e98fb0453c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BA1 10340 bytes

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