Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd53a9198fa6c0dd…

MALICIOUS

PDF

49.0 KB Created: 2020-08-16 19:47:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 967fc6656fcb55e87c94b66ed03fb915 SHA-1: 9f3b861ee892a76022af575a44da7e5452c4bfdd SHA-256: bd53a9198fa6c0dd54d914d2e97ab706c0cb0d07da3b935dc0a86afdfa41b562
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify-hosted PDFs, designed to appear as legitimate content. The primary embedded URL, https://ttraff.cc/pify?keyword=american+college+of+gastroenterology+guidelines+gerd, is identified as a malicious redirector. This suggests the document's purpose is to trick users into clicking the link, leading them to malicious infrastructure.

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=american+college+of+gastroenterology+guidelines+gerd
    • http://files.citrusandmintdesigns.com/uploads/1/3/0/8/130814769/7994026.pdf
    • http://files.hawaiistylecheer.com/uploads/1/3/1/3/131379014/judadebinetuzi-zotedusemuku-ziwusonevedaxen.pdf
    • http://files.kyleskamp.org/uploads/1/3/1/3/131379724/5e7023.pdf
    • http://files.artscienceexhibits.com/uploads/1/3/1/3/131384414/c0fd30eb0.pdf
    • https://cdn.shopify.com/s/files/1/0433/6992/2714/files/45955858449.pdf
    • https://cdn.shopify.com/s/files/1/0430/0560/8099/files/exploracion_nervio_facial.pdf
    • https://cdn.shopify.com/s/files/1/0433/6159/9656/files/jiginu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5149/9170/files/academic_coordinator_job_description.pdf
    • https://cdn.shopify.com/s/files/1/0431/6574/5309/files/31207656582.pdf
    • https://cdn.shopify.com/s/files/1/0429/1048/2588/files/fivekarijex.pdf
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/muveleb.pdf
    • https://cdn.shopify.com/s/files/1/0432/1614/2497/files/fimusodifagewedowil.pdf
    • https://cdn.shopify.com/s/files/1/0430/5358/0441/files/68571591693.pdf
    • https://cdn.shopify.com/s/files/1/0433/9027/1642/files/53267358509.pdf
    • https://cdn.shopify.com/s/files/1/0437/8161/9861/files/20316312129.pdf
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/dizimikobuvifo.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_off00007e54.bin
6f53e334143254b92cc5b4a298118bf1c810bb2ecb0fa2c25040b3e477505482		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E54 5432 bytes
font_01_sfnt_off000090b1.bin
070b31130d3fe6871df77d68a382b0c0146b6a4bd38d5354d94126de83022db6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90B1 11628 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.