Malicious PDF — malware analysis report

Static analysis result for SHA-256 d16af2b04cb10ee4…

MALICIOUS

PDF

44.7 KB Created: 2020-08-23 04:10:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4458853cb2a82ab1e752bdcd8de678ff SHA-1: a222dee73d9573b1d3eba45a19152b3630fe1b5b SHA-256: d16af2b04cb10ee4e44a801828e2a8ba43d5b115487bd8afc4cffacd30a9362d
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links pointing to other PDF files hosted on Shopify, indicating a link farm. One of the primary links directs to a known malicious redirector at 'ttraff.com'. This suggests the document is part of a campaign to either manipulate SEO or distribute further malicious content, potentially leading to malware or phishing sites.

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=jamur+basidiomycota+pdf
    • http://files.alebrijeproduce.com/uploads/1/3/0/8/130814682/bajovikuputeteg.pdf
    • http://gumivazaj.striplingwarriorslax.com/uploads/1/3/2/7/132712415/jematafileso-pijet.pdf
    • https://cdn.shopify.com/s/files/1/0429/9299/2410/files/zaneviruwiz.pdf
    • https://cdn.shopify.com/s/files/1/0439/1724/6632/files/chrome_64_bit.pdf
    • https://cdn.shopify.com/s/files/1/0435/5896/1315/files/87769552025.pdf
    • https://cdn.shopify.com/s/files/1/0447/7868/4573/files/88531037621.pdf
    • https://cdn.shopify.com/s/files/1/0435/0086/3643/files/7388196469.pdf
    • https://cdn.shopify.com/s/files/1/0429/9482/7418/files/bakivulologufofuxafejak.pdf
    • https://cdn.shopify.com/s/files/1/0431/0564/8807/files/rufafokagitawonujexekun.pdf
    • https://cdn.shopify.com/s/files/1/0431/7816/4387/files/luzil.pdf
    • https://cdn.shopify.com/s/files/1/0432/7096/3350/files/96557973384.pdf
    • https://cdn.shopify.com/s/files/1/0438/0357/4432/files/63505133733.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_off00006fd2.bin
b0a6273a1b031291231122c5e8bb840c7f90cd64ba3254c1ab41609ac2f65506		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD2 5500 bytes
font_01_sfnt_off00008274.bin
75f6a14000ea3bc1d1c13d1433bf09eb9712defcdca433ffdf2c3afb3d56cda2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8274 10536 bytes

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