Malicious PDF — malware analysis report

Static analysis result for SHA-256 475c7d5229a3d54a…

MALICIOUS

PDF

43.7 KB Created: 2020-08-14 17:56:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7bd88fb85e495d7c869a230cc971f7c4 SHA-1: f1b8a8811db185d23be67c0525a09721a5329fdf SHA-256: 475c7d5229a3d54a58f4527150643d8fdc9cf336088f7d4f0891d62322914247
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. It also exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The document body contains obfuscated text and the target URL, suggesting an attempt to disguise the malicious intent. The primary attack pattern involves luring users to a malicious site via deceptive links within the PDF.

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=aqw+exp+bot
    • http://files.innerheartpathways.com/uploads/1/3/2/6/132681002/46e9335.pdf
    • http://files.trinalang.com/uploads/1/3/2/6/132696325/mudeg-fixuratukisimof-pekutonafevuw.pdf
    • https://cdn.shopify.com/s/files/1/0449/8286/1982/files/fases_de_la_enfermedad_de_alzheimer.pdf
    • https://cdn.shopify.com/s/files/1/0430/5331/8306/files/fuzibogugoduxosogetuda.pdf
    • https://cdn.shopify.com/s/files/1/0431/3966/1981/files/18508857184.pdf
    • https://cdn.shopify.com/s/files/1/0434/0452/5720/files/5936819079.pdf
    • https://cdn.shopify.com/s/files/1/0429/7241/4106/files/pabivilevopesototedopaf.pdf
    • https://cdn.shopify.com/s/files/1/0431/7839/3762/files/xolekovawuk.pdf
    • https://cdn.shopify.com/s/files/1/0430/8280/9508/files/7306134661.pdf
    • https://cdn.shopify.com/s/files/1/0431/3376/3746/files/pusudogalawe.pdf
    • https://cdn.shopify.com/s/files/1/0436/2957/6352/files/oxford_bookworms_stage_4_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/3473/0911/files/sodibedazirabutisu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2263/9527/files/mokozewivijito.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_off000069e7.bin
8029d4154d07b8a1deaeefe8752649be8f6d87c45046e60b52ced8a707bd060b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69E7 4712 bytes
font_01_sfnt_off00007a18.bin
6ee622298fde192b2cb2dddfedeb82c83ea1d581c4c8eb9b8e5646c6c13d69b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A18 12148 bytes

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