Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a56e2f3d78c1a70…

MALICIOUS

PDF

45.8 KB Created: 2020-08-11 15:53:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 586dd3a5e7a478329dd1cdcf53e46c42 SHA-1: 33881fcc988b050140e383e1c3954ea9da6d1d80 SHA-256: 1a56e2f3d78c1a702c7fbaff4c03a589959ea9982c2b085760f7b6b613264cb1
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=kamala+das+my+story+pdf+download'. This indicates the document's primary purpose is to redirect users to potentially harmful content. Additionally, a PDF link farm heuristic was triggered, suggesting the document is part of a larger SEO poisoning or link-farming operation. The document body itself contains garbled text but includes the malicious URL, reinforcing the redirection attempt.

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=kamala+das+my+story+pdf+download
    • http://gosumeja.home-views.com/uploads/1/3/2/3/132303124/ad37c3b.pdf
    • http://files.portageresourceguide.com/uploads/1/3/1/6/131606644/8719065.pdf
    • http://sikigutuw.botecoatx.com/uploads/1/3/0/8/130814328/jafafiwu.pdf
    • https://cdn.shopify.com/s/files/1/0434/5197/3799/files/idsa_c_diff_guidelines_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/7208/5397/files/pilex.pdf
    • https://cdn.shopify.com/s/files/1/0433/7182/3267/files/sufesekako.pdf
    • https://cdn.shopify.com/s/files/1/0435/6092/7393/files/nudenixapemipat.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/55079075607.pdf
    • https://cdn.shopify.com/s/files/1/0438/4332/2016/files/73671825029.pdf
    • https://cdn.shopify.com/s/files/1/0431/6974/2999/files/20709946419.pdf
    • https://cdn.shopify.com/s/files/1/0431/3592/6434/files/96350183873.pdf
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/10618420417.pdf
    • https://cdn.shopify.com/s/files/1/0434/3706/4348/files/recumbent_bicycle_walmart.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xigazisamakolomomabixefox.pdf
    • https://cdn.shopify.com/s/files/1/0427/8039/3639/files/95577707110.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_off0000749b.bin
57cb88322ea8afcaae4a6240c1f39595fe7ecee8695a694cf87782381bf39b92		 pdf-font-stream PDF embedded font (sfnt) at offset 0x749B 5352 bytes
font_01_sfnt_off000086dd.bin
7bb8327911136911ec61e728362c5127971bc81246f9a18f3af801425607ffa2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86DD 10328 bytes

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