Malicious PDF — malware analysis report

Static analysis result for SHA-256 3714936153cbc1db…

MALICIOUS

PDF

42.3 KB Created: 2020-08-23 22:08:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 619d88d7d511ce4fa32dbf1c28a83c34 SHA-1: 71fc52a3f59f01a4bf43e13a2687812bfb34012d SHA-256: 3714936153cbc1dbdc672114d3b5aea0f44e33d7ec234b48122d4a232a0f8463
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=baal+veer+10000+video++mp4'. This URL is likely part of a phishing or scam campaign designed to trick users into clicking through to malicious content. The document also exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains, likely for SEO manipulation or to obscure the malicious redirector. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector is a strong indicator of 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.com/pify?keyword=baal+veer+10000+video++mp4
    • http://files.haleycloud.com/uploads/1/3/1/6/131636828/pawutowamovuzi_devofodujod.pdf
    • https://cdn.shopify.com/s/files/1/0447/3847/8229/files/define_business_strategy.pdf
    • https://cdn.shopify.com/s/files/1/0437/6264/7189/files/cambridge_igcse_first_language_english_workbook_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/gudemodukeralo.pdf
    • https://cdn.shopify.com/s/files/1/0431/4189/0208/files/8775268529.pdf
    • https://cdn.shopify.com/s/files/1/0428/9432/7975/files/badegukifebad.pdf
    • https://cdn.shopify.com/s/files/1/0427/9946/4611/files/38215186827.pdf
    • https://cdn.shopify.com/s/files/1/0430/4830/4797/files/tofisut.pdf
    • https://cdn.shopify.com/s/files/1/0440/7368/1061/files/23356641425.pdf
    • https://cdn.shopify.com/s/files/1/0441/4255/9384/files/bibliotecas_virtuales_de_libros_gratis.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054da.bin
bd7b9b6501f2d29ffb26627b819411d5bd658c23c5a34cd65248615129978fc0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54DA 5320 bytes
font_01_sfnt_off000066e9.bin
267716f95ab6e41e2d7b5d87a9f8823e160c2df7184700d75e73d075f64e14fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66E9 12568 bytes
font_02_sfnt_off00008f56.bin
f3e40bfb406bf9a41f30538542355917bfac4e9c2e74fb852e62e9c5524b5910		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F56 3444 bytes

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